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 bool Warning(SMLoc L, const Twine &Msg,
86 ArrayRef<SMRange> Ranges = ArrayRef<SMRange>()) {
87 return Parser.Warning(L, Msg, Ranges);
89 bool Error(SMLoc L, const Twine &Msg,
90 ArrayRef<SMRange> Ranges = ArrayRef<SMRange>()) {
91 return Parser.Error(L, Msg, Ranges);
94 int tryParseRegister();
95 bool tryParseRegisterWithWriteBack(SmallVectorImpl<MCParsedAsmOperand*> &);
96 int tryParseShiftRegister(SmallVectorImpl<MCParsedAsmOperand*> &);
97 bool parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &);
98 bool parseMemory(SmallVectorImpl<MCParsedAsmOperand*> &);
99 bool parseOperand(SmallVectorImpl<MCParsedAsmOperand*> &, StringRef Mnemonic);
100 bool parsePrefix(ARMMCExpr::VariantKind &RefKind);
101 bool parseMemRegOffsetShift(ARM_AM::ShiftOpc &ShiftType,
102 unsigned &ShiftAmount);
103 bool parseDirectiveWord(unsigned Size, SMLoc L);
104 bool parseDirectiveThumb(SMLoc L);
105 bool parseDirectiveARM(SMLoc L);
106 bool parseDirectiveThumbFunc(SMLoc L);
107 bool parseDirectiveCode(SMLoc L);
108 bool parseDirectiveSyntax(SMLoc L);
109 bool parseDirectiveReq(StringRef Name, SMLoc L);
110 bool parseDirectiveUnreq(SMLoc L);
111 bool parseDirectiveArch(SMLoc L);
112 bool parseDirectiveEabiAttr(SMLoc L);
114 StringRef splitMnemonic(StringRef Mnemonic, unsigned &PredicationCode,
115 bool &CarrySetting, unsigned &ProcessorIMod,
117 void getMnemonicAcceptInfo(StringRef Mnemonic, bool &CanAcceptCarrySet,
118 bool &CanAcceptPredicationCode);
120 bool isThumb() const {
121 // FIXME: Can tablegen auto-generate this?
122 return (STI.getFeatureBits() & ARM::ModeThumb) != 0;
124 bool isThumbOne() const {
125 return isThumb() && (STI.getFeatureBits() & ARM::FeatureThumb2) == 0;
127 bool isThumbTwo() const {
128 return isThumb() && (STI.getFeatureBits() & ARM::FeatureThumb2);
130 bool hasV6Ops() const {
131 return STI.getFeatureBits() & ARM::HasV6Ops;
133 bool hasV7Ops() const {
134 return STI.getFeatureBits() & ARM::HasV7Ops;
137 unsigned FB = ComputeAvailableFeatures(STI.ToggleFeature(ARM::ModeThumb));
138 setAvailableFeatures(FB);
140 bool isMClass() const {
141 return STI.getFeatureBits() & ARM::FeatureMClass;
144 /// @name Auto-generated Match Functions
147 #define GET_ASSEMBLER_HEADER
148 #include "ARMGenAsmMatcher.inc"
152 OperandMatchResultTy parseITCondCode(SmallVectorImpl<MCParsedAsmOperand*>&);
153 OperandMatchResultTy parseCoprocNumOperand(
154 SmallVectorImpl<MCParsedAsmOperand*>&);
155 OperandMatchResultTy parseCoprocRegOperand(
156 SmallVectorImpl<MCParsedAsmOperand*>&);
157 OperandMatchResultTy parseCoprocOptionOperand(
158 SmallVectorImpl<MCParsedAsmOperand*>&);
159 OperandMatchResultTy parseMemBarrierOptOperand(
160 SmallVectorImpl<MCParsedAsmOperand*>&);
161 OperandMatchResultTy parseProcIFlagsOperand(
162 SmallVectorImpl<MCParsedAsmOperand*>&);
163 OperandMatchResultTy parseMSRMaskOperand(
164 SmallVectorImpl<MCParsedAsmOperand*>&);
165 OperandMatchResultTy parsePKHImm(SmallVectorImpl<MCParsedAsmOperand*> &O,
166 StringRef Op, int Low, int High);
167 OperandMatchResultTy parsePKHLSLImm(SmallVectorImpl<MCParsedAsmOperand*> &O) {
168 return parsePKHImm(O, "lsl", 0, 31);
170 OperandMatchResultTy parsePKHASRImm(SmallVectorImpl<MCParsedAsmOperand*> &O) {
171 return parsePKHImm(O, "asr", 1, 32);
173 OperandMatchResultTy parseSetEndImm(SmallVectorImpl<MCParsedAsmOperand*>&);
174 OperandMatchResultTy parseShifterImm(SmallVectorImpl<MCParsedAsmOperand*>&);
175 OperandMatchResultTy parseRotImm(SmallVectorImpl<MCParsedAsmOperand*>&);
176 OperandMatchResultTy parseBitfield(SmallVectorImpl<MCParsedAsmOperand*>&);
177 OperandMatchResultTy parsePostIdxReg(SmallVectorImpl<MCParsedAsmOperand*>&);
178 OperandMatchResultTy parseAM3Offset(SmallVectorImpl<MCParsedAsmOperand*>&);
179 OperandMatchResultTy parseFPImm(SmallVectorImpl<MCParsedAsmOperand*>&);
180 OperandMatchResultTy parseVectorList(SmallVectorImpl<MCParsedAsmOperand*>&);
181 OperandMatchResultTy parseVectorLane(VectorLaneTy &LaneKind, unsigned &Index);
183 // Asm Match Converter Methods
184 bool cvtT2LdrdPre(MCInst &Inst, unsigned Opcode,
185 const SmallVectorImpl<MCParsedAsmOperand*> &);
186 bool cvtT2StrdPre(MCInst &Inst, unsigned Opcode,
187 const SmallVectorImpl<MCParsedAsmOperand*> &);
188 bool cvtLdWriteBackRegT2AddrModeImm8(MCInst &Inst, unsigned Opcode,
189 const SmallVectorImpl<MCParsedAsmOperand*> &);
190 bool cvtStWriteBackRegT2AddrModeImm8(MCInst &Inst, unsigned Opcode,
191 const SmallVectorImpl<MCParsedAsmOperand*> &);
192 bool cvtLdWriteBackRegAddrMode2(MCInst &Inst, unsigned Opcode,
193 const SmallVectorImpl<MCParsedAsmOperand*> &);
194 bool cvtLdWriteBackRegAddrModeImm12(MCInst &Inst, unsigned Opcode,
195 const SmallVectorImpl<MCParsedAsmOperand*> &);
196 bool cvtStWriteBackRegAddrModeImm12(MCInst &Inst, unsigned Opcode,
197 const SmallVectorImpl<MCParsedAsmOperand*> &);
198 bool cvtStWriteBackRegAddrMode2(MCInst &Inst, unsigned Opcode,
199 const SmallVectorImpl<MCParsedAsmOperand*> &);
200 bool cvtStWriteBackRegAddrMode3(MCInst &Inst, unsigned Opcode,
201 const SmallVectorImpl<MCParsedAsmOperand*> &);
202 bool cvtLdExtTWriteBackImm(MCInst &Inst, unsigned Opcode,
203 const SmallVectorImpl<MCParsedAsmOperand*> &);
204 bool cvtLdExtTWriteBackReg(MCInst &Inst, unsigned Opcode,
205 const SmallVectorImpl<MCParsedAsmOperand*> &);
206 bool cvtStExtTWriteBackImm(MCInst &Inst, unsigned Opcode,
207 const SmallVectorImpl<MCParsedAsmOperand*> &);
208 bool cvtStExtTWriteBackReg(MCInst &Inst, unsigned Opcode,
209 const SmallVectorImpl<MCParsedAsmOperand*> &);
210 bool cvtLdrdPre(MCInst &Inst, unsigned Opcode,
211 const SmallVectorImpl<MCParsedAsmOperand*> &);
212 bool cvtStrdPre(MCInst &Inst, unsigned Opcode,
213 const SmallVectorImpl<MCParsedAsmOperand*> &);
214 bool cvtLdWriteBackRegAddrMode3(MCInst &Inst, unsigned Opcode,
215 const SmallVectorImpl<MCParsedAsmOperand*> &);
216 bool cvtThumbMultiply(MCInst &Inst, unsigned Opcode,
217 const SmallVectorImpl<MCParsedAsmOperand*> &);
218 bool cvtVLDwbFixed(MCInst &Inst, unsigned Opcode,
219 const SmallVectorImpl<MCParsedAsmOperand*> &);
220 bool cvtVLDwbRegister(MCInst &Inst, unsigned Opcode,
221 const SmallVectorImpl<MCParsedAsmOperand*> &);
222 bool cvtVSTwbFixed(MCInst &Inst, unsigned Opcode,
223 const SmallVectorImpl<MCParsedAsmOperand*> &);
224 bool cvtVSTwbRegister(MCInst &Inst, unsigned Opcode,
225 const SmallVectorImpl<MCParsedAsmOperand*> &);
227 bool validateInstruction(MCInst &Inst,
228 const SmallVectorImpl<MCParsedAsmOperand*> &Ops);
229 bool processInstruction(MCInst &Inst,
230 const SmallVectorImpl<MCParsedAsmOperand*> &Ops);
231 bool shouldOmitCCOutOperand(StringRef Mnemonic,
232 SmallVectorImpl<MCParsedAsmOperand*> &Operands);
235 enum ARMMatchResultTy {
236 Match_RequiresITBlock = FIRST_TARGET_MATCH_RESULT_TY,
237 Match_RequiresNotITBlock,
242 ARMAsmParser(MCSubtargetInfo &_STI, MCAsmParser &_Parser)
243 : MCTargetAsmParser(), STI(_STI), Parser(_Parser) {
244 MCAsmParserExtension::Initialize(_Parser);
246 // Cache the MCRegisterInfo.
247 MRI = &getContext().getRegisterInfo();
249 // Initialize the set of available features.
250 setAvailableFeatures(ComputeAvailableFeatures(STI.getFeatureBits()));
252 // Not in an ITBlock to start with.
253 ITState.CurPosition = ~0U;
256 // Implementation of the MCTargetAsmParser interface:
257 bool ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc);
258 bool ParseInstruction(StringRef Name, SMLoc NameLoc,
259 SmallVectorImpl<MCParsedAsmOperand*> &Operands);
260 bool ParseDirective(AsmToken DirectiveID);
262 unsigned checkTargetMatchPredicate(MCInst &Inst);
264 bool MatchAndEmitInstruction(SMLoc IDLoc,
265 SmallVectorImpl<MCParsedAsmOperand*> &Operands,
268 } // end anonymous namespace
272 /// ARMOperand - Instances of this class represent a parsed ARM machine
274 class ARMOperand : public MCParsedAsmOperand {
294 k_VectorListAllLanes,
300 k_BitfieldDescriptor,
304 SMLoc StartLoc, EndLoc;
305 SmallVector<unsigned, 8> Registers;
309 ARMCC::CondCodes Val;
329 ARM_PROC::IFlags Val;
345 // A vector register list is a sequential list of 1 to 4 registers.
361 /// Combined record for all forms of ARM address expressions.
364 // Offset is in OffsetReg or OffsetImm. If both are zero, no offset
366 const MCConstantExpr *OffsetImm; // Offset immediate value
367 unsigned OffsetRegNum; // Offset register num, when OffsetImm == NULL
368 ARM_AM::ShiftOpc ShiftType; // Shift type for OffsetReg
369 unsigned ShiftImm; // shift for OffsetReg.
370 unsigned Alignment; // 0 = no alignment specified
371 // n = alignment in bytes (2, 4, 8, 16, or 32)
372 unsigned isNegative : 1; // Negated OffsetReg? (~'U' bit)
378 ARM_AM::ShiftOpc ShiftTy;
387 ARM_AM::ShiftOpc ShiftTy;
393 ARM_AM::ShiftOpc ShiftTy;
406 ARMOperand(KindTy K) : MCParsedAsmOperand(), Kind(K) {}
408 ARMOperand(const ARMOperand &o) : MCParsedAsmOperand() {
410 StartLoc = o.StartLoc;
427 case k_DPRRegisterList:
428 case k_SPRRegisterList:
429 Registers = o.Registers;
432 case k_VectorListAllLanes:
433 case k_VectorListIndexed:
434 VectorList = o.VectorList;
441 CoprocOption = o.CoprocOption;
446 case k_MemBarrierOpt:
452 case k_PostIndexRegister:
453 PostIdxReg = o.PostIdxReg;
461 case k_ShifterImmediate:
462 ShifterImm = o.ShifterImm;
464 case k_ShiftedRegister:
465 RegShiftedReg = o.RegShiftedReg;
467 case k_ShiftedImmediate:
468 RegShiftedImm = o.RegShiftedImm;
470 case k_RotateImmediate:
473 case k_BitfieldDescriptor:
474 Bitfield = o.Bitfield;
477 VectorIndex = o.VectorIndex;
482 /// getStartLoc - Get the location of the first token of this operand.
483 SMLoc getStartLoc() const { return StartLoc; }
484 /// getEndLoc - Get the location of the last token of this operand.
485 SMLoc getEndLoc() const { return EndLoc; }
487 SMRange getLocRange() const { return SMRange(StartLoc, EndLoc); }
489 ARMCC::CondCodes getCondCode() const {
490 assert(Kind == k_CondCode && "Invalid access!");
494 unsigned getCoproc() const {
495 assert((Kind == k_CoprocNum || Kind == k_CoprocReg) && "Invalid access!");
499 StringRef getToken() const {
500 assert(Kind == k_Token && "Invalid access!");
501 return StringRef(Tok.Data, Tok.Length);
504 unsigned getReg() const {
505 assert((Kind == k_Register || Kind == k_CCOut) && "Invalid access!");
509 const SmallVectorImpl<unsigned> &getRegList() const {
510 assert((Kind == k_RegisterList || Kind == k_DPRRegisterList ||
511 Kind == k_SPRRegisterList) && "Invalid access!");
515 const MCExpr *getImm() const {
516 assert(isImm() && "Invalid access!");
520 unsigned getVectorIndex() const {
521 assert(Kind == k_VectorIndex && "Invalid access!");
522 return VectorIndex.Val;
525 ARM_MB::MemBOpt getMemBarrierOpt() const {
526 assert(Kind == k_MemBarrierOpt && "Invalid access!");
530 ARM_PROC::IFlags getProcIFlags() const {
531 assert(Kind == k_ProcIFlags && "Invalid access!");
535 unsigned getMSRMask() const {
536 assert(Kind == k_MSRMask && "Invalid access!");
540 bool isCoprocNum() const { return Kind == k_CoprocNum; }
541 bool isCoprocReg() const { return Kind == k_CoprocReg; }
542 bool isCoprocOption() const { return Kind == k_CoprocOption; }
543 bool isCondCode() const { return Kind == k_CondCode; }
544 bool isCCOut() const { return Kind == k_CCOut; }
545 bool isITMask() const { return Kind == k_ITCondMask; }
546 bool isITCondCode() const { return Kind == k_CondCode; }
547 bool isImm() const { return Kind == k_Immediate; }
548 bool isFPImm() const {
549 if (!isImm()) return false;
550 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
551 if (!CE) return false;
552 int Val = ARM_AM::getFP32Imm(APInt(32, CE->getValue()));
555 bool isFBits16() const {
556 if (!isImm()) return false;
557 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
558 if (!CE) return false;
559 int64_t Value = CE->getValue();
560 return Value >= 0 && Value <= 16;
562 bool isFBits32() const {
563 if (!isImm()) return false;
564 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
565 if (!CE) return false;
566 int64_t Value = CE->getValue();
567 return Value >= 1 && Value <= 32;
569 bool isImm8s4() const {
570 if (!isImm()) return false;
571 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
572 if (!CE) return false;
573 int64_t Value = CE->getValue();
574 return ((Value & 3) == 0) && Value >= -1020 && Value <= 1020;
576 bool isImm0_1020s4() const {
577 if (!isImm()) return false;
578 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
579 if (!CE) return false;
580 int64_t Value = CE->getValue();
581 return ((Value & 3) == 0) && Value >= 0 && Value <= 1020;
583 bool isImm0_508s4() const {
584 if (!isImm()) return false;
585 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
586 if (!CE) return false;
587 int64_t Value = CE->getValue();
588 return ((Value & 3) == 0) && Value >= 0 && Value <= 508;
590 bool isImm0_508s4Neg() 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 // explicitly exclude zero. we want that to use the normal 0_508 version.
596 return ((Value & 3) == 0) && Value > 0 && Value <= 508;
598 bool isImm0_255() const {
599 if (!isImm()) return false;
600 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
601 if (!CE) return false;
602 int64_t Value = CE->getValue();
603 return Value >= 0 && Value < 256;
605 bool isImm0_4095() const {
606 if (!isImm()) return false;
607 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
608 if (!CE) return false;
609 int64_t Value = CE->getValue();
610 return Value >= 0 && Value < 4096;
612 bool isImm0_4095Neg() const {
613 if (!isImm()) return false;
614 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
615 if (!CE) return false;
616 int64_t Value = -CE->getValue();
617 return Value > 0 && Value < 4096;
619 bool isImm0_1() const {
620 if (!isImm()) return false;
621 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
622 if (!CE) return false;
623 int64_t Value = CE->getValue();
624 return Value >= 0 && Value < 2;
626 bool isImm0_3() const {
627 if (!isImm()) return false;
628 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
629 if (!CE) return false;
630 int64_t Value = CE->getValue();
631 return Value >= 0 && Value < 4;
633 bool isImm0_7() const {
634 if (!isImm()) return false;
635 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
636 if (!CE) return false;
637 int64_t Value = CE->getValue();
638 return Value >= 0 && Value < 8;
640 bool isImm0_15() const {
641 if (!isImm()) return false;
642 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
643 if (!CE) return false;
644 int64_t Value = CE->getValue();
645 return Value >= 0 && Value < 16;
647 bool isImm0_31() const {
648 if (!isImm()) return false;
649 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
650 if (!CE) return false;
651 int64_t Value = CE->getValue();
652 return Value >= 0 && Value < 32;
654 bool isImm0_63() const {
655 if (!isImm()) return false;
656 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
657 if (!CE) return false;
658 int64_t Value = CE->getValue();
659 return Value >= 0 && Value < 64;
661 bool isImm8() const {
662 if (!isImm()) return false;
663 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
664 if (!CE) return false;
665 int64_t Value = CE->getValue();
668 bool isImm16() const {
669 if (!isImm()) return false;
670 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
671 if (!CE) return false;
672 int64_t Value = CE->getValue();
675 bool isImm32() const {
676 if (!isImm()) return false;
677 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
678 if (!CE) return false;
679 int64_t Value = CE->getValue();
682 bool isShrImm8() const {
683 if (!isImm()) return false;
684 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
685 if (!CE) return false;
686 int64_t Value = CE->getValue();
687 return Value > 0 && Value <= 8;
689 bool isShrImm16() const {
690 if (!isImm()) return false;
691 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
692 if (!CE) return false;
693 int64_t Value = CE->getValue();
694 return Value > 0 && Value <= 16;
696 bool isShrImm32() const {
697 if (!isImm()) return false;
698 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
699 if (!CE) return false;
700 int64_t Value = CE->getValue();
701 return Value > 0 && Value <= 32;
703 bool isShrImm64() const {
704 if (!isImm()) return false;
705 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
706 if (!CE) return false;
707 int64_t Value = CE->getValue();
708 return Value > 0 && Value <= 64;
710 bool isImm1_7() const {
711 if (!isImm()) return false;
712 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
713 if (!CE) return false;
714 int64_t Value = CE->getValue();
715 return Value > 0 && Value < 8;
717 bool isImm1_15() const {
718 if (!isImm()) return false;
719 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
720 if (!CE) return false;
721 int64_t Value = CE->getValue();
722 return Value > 0 && Value < 16;
724 bool isImm1_31() const {
725 if (!isImm()) return false;
726 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
727 if (!CE) return false;
728 int64_t Value = CE->getValue();
729 return Value > 0 && Value < 32;
731 bool isImm1_16() const {
732 if (!isImm()) return false;
733 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
734 if (!CE) return false;
735 int64_t Value = CE->getValue();
736 return Value > 0 && Value < 17;
738 bool isImm1_32() const {
739 if (!isImm()) return false;
740 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
741 if (!CE) return false;
742 int64_t Value = CE->getValue();
743 return Value > 0 && Value < 33;
745 bool isImm0_32() const {
746 if (!isImm()) return false;
747 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
748 if (!CE) return false;
749 int64_t Value = CE->getValue();
750 return Value >= 0 && Value < 33;
752 bool isImm0_65535() const {
753 if (!isImm()) return false;
754 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
755 if (!CE) return false;
756 int64_t Value = CE->getValue();
757 return Value >= 0 && Value < 65536;
759 bool isImm0_65535Expr() const {
760 if (!isImm()) return false;
761 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
762 // If it's not a constant expression, it'll generate a fixup and be
764 if (!CE) return true;
765 int64_t Value = CE->getValue();
766 return Value >= 0 && Value < 65536;
768 bool isImm24bit() const {
769 if (!isImm()) return false;
770 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
771 if (!CE) return false;
772 int64_t Value = CE->getValue();
773 return Value >= 0 && Value <= 0xffffff;
775 bool isImmThumbSR() const {
776 if (!isImm()) return false;
777 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
778 if (!CE) return false;
779 int64_t Value = CE->getValue();
780 return Value > 0 && Value < 33;
782 bool isPKHLSLImm() const {
783 if (!isImm()) return false;
784 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
785 if (!CE) return false;
786 int64_t Value = CE->getValue();
787 return Value >= 0 && Value < 32;
789 bool isPKHASRImm() const {
790 if (!isImm()) return false;
791 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
792 if (!CE) return false;
793 int64_t Value = CE->getValue();
794 return Value > 0 && Value <= 32;
796 bool isARMSOImm() const {
797 if (!isImm()) return false;
798 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
799 if (!CE) return false;
800 int64_t Value = CE->getValue();
801 return ARM_AM::getSOImmVal(Value) != -1;
803 bool isARMSOImmNot() const {
804 if (!isImm()) return false;
805 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
806 if (!CE) return false;
807 int64_t Value = CE->getValue();
808 return ARM_AM::getSOImmVal(~Value) != -1;
810 bool isARMSOImmNeg() const {
811 if (!isImm()) return false;
812 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
813 if (!CE) return false;
814 int64_t Value = CE->getValue();
815 // Only use this when not representable as a plain so_imm.
816 return ARM_AM::getSOImmVal(Value) == -1 &&
817 ARM_AM::getSOImmVal(-Value) != -1;
819 bool isT2SOImm() const {
820 if (!isImm()) return false;
821 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
822 if (!CE) return false;
823 int64_t Value = CE->getValue();
824 return ARM_AM::getT2SOImmVal(Value) != -1;
826 bool isT2SOImmNot() const {
827 if (!isImm()) return false;
828 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
829 if (!CE) return false;
830 int64_t Value = CE->getValue();
831 return ARM_AM::getT2SOImmVal(~Value) != -1;
833 bool isT2SOImmNeg() const {
834 if (!isImm()) return false;
835 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
836 if (!CE) return false;
837 int64_t Value = CE->getValue();
838 // Only use this when not representable as a plain so_imm.
839 return ARM_AM::getT2SOImmVal(Value) == -1 &&
840 ARM_AM::getT2SOImmVal(-Value) != -1;
842 bool isSetEndImm() const {
843 if (!isImm()) return false;
844 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
845 if (!CE) return false;
846 int64_t Value = CE->getValue();
847 return Value == 1 || Value == 0;
849 bool isReg() const { return Kind == k_Register; }
850 bool isRegList() const { return Kind == k_RegisterList; }
851 bool isDPRRegList() const { return Kind == k_DPRRegisterList; }
852 bool isSPRRegList() const { return Kind == k_SPRRegisterList; }
853 bool isToken() const { return Kind == k_Token; }
854 bool isMemBarrierOpt() const { return Kind == k_MemBarrierOpt; }
855 bool isMemory() const { return Kind == k_Memory; }
856 bool isShifterImm() const { return Kind == k_ShifterImmediate; }
857 bool isRegShiftedReg() const { return Kind == k_ShiftedRegister; }
858 bool isRegShiftedImm() const { return Kind == k_ShiftedImmediate; }
859 bool isRotImm() const { return Kind == k_RotateImmediate; }
860 bool isBitfield() const { return Kind == k_BitfieldDescriptor; }
861 bool isPostIdxRegShifted() const { return Kind == k_PostIndexRegister; }
862 bool isPostIdxReg() const {
863 return Kind == k_PostIndexRegister && PostIdxReg.ShiftTy ==ARM_AM::no_shift;
865 bool isMemNoOffset(bool alignOK = false) const {
868 // No offset of any kind.
869 return Memory.OffsetRegNum == 0 && Memory.OffsetImm == 0 &&
870 (alignOK || Memory.Alignment == 0);
872 bool isMemPCRelImm12() const {
873 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
875 // Base register must be PC.
876 if (Memory.BaseRegNum != ARM::PC)
878 // Immediate offset in range [-4095, 4095].
879 if (!Memory.OffsetImm) return true;
880 int64_t Val = Memory.OffsetImm->getValue();
881 return (Val > -4096 && Val < 4096) || (Val == INT32_MIN);
883 bool isAlignedMemory() const {
884 return isMemNoOffset(true);
886 bool isAddrMode2() const {
887 if (!isMemory() || Memory.Alignment != 0) return false;
888 // Check for register offset.
889 if (Memory.OffsetRegNum) return true;
890 // Immediate offset in range [-4095, 4095].
891 if (!Memory.OffsetImm) return true;
892 int64_t Val = Memory.OffsetImm->getValue();
893 return Val > -4096 && Val < 4096;
895 bool isAM2OffsetImm() const {
896 if (!isImm()) return false;
897 // Immediate offset in range [-4095, 4095].
898 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
899 if (!CE) return false;
900 int64_t Val = CE->getValue();
901 return Val > -4096 && Val < 4096;
903 bool isAddrMode3() const {
904 // If we have an immediate that's not a constant, treat it as a label
905 // reference needing a fixup. If it is a constant, it's something else
907 if (isImm() && !isa<MCConstantExpr>(getImm()))
909 if (!isMemory() || Memory.Alignment != 0) return false;
910 // No shifts are legal for AM3.
911 if (Memory.ShiftType != ARM_AM::no_shift) return false;
912 // Check for register offset.
913 if (Memory.OffsetRegNum) return true;
914 // Immediate offset in range [-255, 255].
915 if (!Memory.OffsetImm) return true;
916 int64_t Val = Memory.OffsetImm->getValue();
917 // The #-0 offset is encoded as INT32_MIN, and we have to check
919 return (Val > -256 && Val < 256) || Val == INT32_MIN;
921 bool isAM3Offset() const {
922 if (Kind != k_Immediate && Kind != k_PostIndexRegister)
924 if (Kind == k_PostIndexRegister)
925 return PostIdxReg.ShiftTy == ARM_AM::no_shift;
926 // Immediate offset in range [-255, 255].
927 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
928 if (!CE) return false;
929 int64_t Val = CE->getValue();
930 // Special case, #-0 is INT32_MIN.
931 return (Val > -256 && Val < 256) || Val == INT32_MIN;
933 bool isAddrMode5() const {
934 // If we have an immediate that's not a constant, treat it as a label
935 // reference needing a fixup. If it is a constant, it's something else
937 if (isImm() && !isa<MCConstantExpr>(getImm()))
939 if (!isMemory() || Memory.Alignment != 0) return false;
940 // Check for register offset.
941 if (Memory.OffsetRegNum) return false;
942 // Immediate offset in range [-1020, 1020] and a multiple of 4.
943 if (!Memory.OffsetImm) return true;
944 int64_t Val = Memory.OffsetImm->getValue();
945 return (Val >= -1020 && Val <= 1020 && ((Val & 3) == 0)) ||
948 bool isMemTBB() const {
949 if (!isMemory() || !Memory.OffsetRegNum || Memory.isNegative ||
950 Memory.ShiftType != ARM_AM::no_shift || Memory.Alignment != 0)
954 bool isMemTBH() const {
955 if (!isMemory() || !Memory.OffsetRegNum || Memory.isNegative ||
956 Memory.ShiftType != ARM_AM::lsl || Memory.ShiftImm != 1 ||
957 Memory.Alignment != 0 )
961 bool isMemRegOffset() const {
962 if (!isMemory() || !Memory.OffsetRegNum || Memory.Alignment != 0)
966 bool isT2MemRegOffset() const {
967 if (!isMemory() || !Memory.OffsetRegNum || Memory.isNegative ||
968 Memory.Alignment != 0)
970 // Only lsl #{0, 1, 2, 3} allowed.
971 if (Memory.ShiftType == ARM_AM::no_shift)
973 if (Memory.ShiftType != ARM_AM::lsl || Memory.ShiftImm > 3)
977 bool isMemThumbRR() const {
978 // Thumb reg+reg addressing is simple. Just two registers, a base and
979 // an offset. No shifts, negations or any other complicating factors.
980 if (!isMemory() || !Memory.OffsetRegNum || Memory.isNegative ||
981 Memory.ShiftType != ARM_AM::no_shift || Memory.Alignment != 0)
983 return isARMLowRegister(Memory.BaseRegNum) &&
984 (!Memory.OffsetRegNum || isARMLowRegister(Memory.OffsetRegNum));
986 bool isMemThumbRIs4() const {
987 if (!isMemory() || Memory.OffsetRegNum != 0 ||
988 !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
990 // Immediate offset, multiple of 4 in range [0, 124].
991 if (!Memory.OffsetImm) return true;
992 int64_t Val = Memory.OffsetImm->getValue();
993 return Val >= 0 && Val <= 124 && (Val % 4) == 0;
995 bool isMemThumbRIs2() const {
996 if (!isMemory() || Memory.OffsetRegNum != 0 ||
997 !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
999 // Immediate offset, multiple of 4 in range [0, 62].
1000 if (!Memory.OffsetImm) return true;
1001 int64_t Val = Memory.OffsetImm->getValue();
1002 return Val >= 0 && Val <= 62 && (Val % 2) == 0;
1004 bool isMemThumbRIs1() const {
1005 if (!isMemory() || Memory.OffsetRegNum != 0 ||
1006 !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
1008 // Immediate offset in range [0, 31].
1009 if (!Memory.OffsetImm) return true;
1010 int64_t Val = Memory.OffsetImm->getValue();
1011 return Val >= 0 && Val <= 31;
1013 bool isMemThumbSPI() const {
1014 if (!isMemory() || Memory.OffsetRegNum != 0 ||
1015 Memory.BaseRegNum != ARM::SP || Memory.Alignment != 0)
1017 // Immediate offset, multiple of 4 in range [0, 1020].
1018 if (!Memory.OffsetImm) return true;
1019 int64_t Val = Memory.OffsetImm->getValue();
1020 return Val >= 0 && Val <= 1020 && (Val % 4) == 0;
1022 bool isMemImm8s4Offset() const {
1023 // If we have an immediate that's not a constant, treat it as a label
1024 // reference needing a fixup. If it is a constant, it's something else
1025 // and we reject it.
1026 if (isImm() && !isa<MCConstantExpr>(getImm()))
1028 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1030 // Immediate offset a multiple of 4 in range [-1020, 1020].
1031 if (!Memory.OffsetImm) return true;
1032 int64_t Val = Memory.OffsetImm->getValue();
1033 return Val >= -1020 && Val <= 1020 && (Val & 3) == 0;
1035 bool isMemImm0_1020s4Offset() const {
1036 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1038 // Immediate offset a multiple of 4 in range [0, 1020].
1039 if (!Memory.OffsetImm) return true;
1040 int64_t Val = Memory.OffsetImm->getValue();
1041 return Val >= 0 && Val <= 1020 && (Val & 3) == 0;
1043 bool isMemImm8Offset() const {
1044 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1046 // Base reg of PC isn't allowed for these encodings.
1047 if (Memory.BaseRegNum == ARM::PC) return false;
1048 // Immediate offset in range [-255, 255].
1049 if (!Memory.OffsetImm) return true;
1050 int64_t Val = Memory.OffsetImm->getValue();
1051 return (Val == INT32_MIN) || (Val > -256 && Val < 256);
1053 bool isMemPosImm8Offset() const {
1054 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1056 // Immediate offset in range [0, 255].
1057 if (!Memory.OffsetImm) return true;
1058 int64_t Val = Memory.OffsetImm->getValue();
1059 return Val >= 0 && Val < 256;
1061 bool isMemNegImm8Offset() const {
1062 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1064 // Base reg of PC isn't allowed for these encodings.
1065 if (Memory.BaseRegNum == ARM::PC) return false;
1066 // Immediate offset in range [-255, -1].
1067 if (!Memory.OffsetImm) return false;
1068 int64_t Val = Memory.OffsetImm->getValue();
1069 return (Val == INT32_MIN) || (Val > -256 && Val < 0);
1071 bool isMemUImm12Offset() const {
1072 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1074 // Immediate offset in range [0, 4095].
1075 if (!Memory.OffsetImm) return true;
1076 int64_t Val = Memory.OffsetImm->getValue();
1077 return (Val >= 0 && Val < 4096);
1079 bool isMemImm12Offset() const {
1080 // If we have an immediate that's not a constant, treat it as a label
1081 // reference needing a fixup. If it is a constant, it's something else
1082 // and we reject it.
1083 if (isImm() && !isa<MCConstantExpr>(getImm()))
1086 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1088 // Immediate offset in range [-4095, 4095].
1089 if (!Memory.OffsetImm) return true;
1090 int64_t Val = Memory.OffsetImm->getValue();
1091 return (Val > -4096 && Val < 4096) || (Val == INT32_MIN);
1093 bool isPostIdxImm8() const {
1094 if (!isImm()) return false;
1095 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1096 if (!CE) return false;
1097 int64_t Val = CE->getValue();
1098 return (Val > -256 && Val < 256) || (Val == INT32_MIN);
1100 bool isPostIdxImm8s4() const {
1101 if (!isImm()) return false;
1102 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1103 if (!CE) return false;
1104 int64_t Val = CE->getValue();
1105 return ((Val & 3) == 0 && Val >= -1020 && Val <= 1020) ||
1109 bool isMSRMask() const { return Kind == k_MSRMask; }
1110 bool isProcIFlags() const { return Kind == k_ProcIFlags; }
1113 bool isSingleSpacedVectorList() const {
1114 return Kind == k_VectorList && !VectorList.isDoubleSpaced;
1116 bool isDoubleSpacedVectorList() const {
1117 return Kind == k_VectorList && VectorList.isDoubleSpaced;
1119 bool isVecListOneD() const {
1120 if (!isSingleSpacedVectorList()) return false;
1121 return VectorList.Count == 1;
1124 bool isVecListDPair() const {
1125 if (!isSingleSpacedVectorList()) return false;
1126 return (ARMMCRegisterClasses[ARM::DPairRegClassID]
1127 .contains(VectorList.RegNum));
1130 bool isVecListThreeD() const {
1131 if (!isSingleSpacedVectorList()) return false;
1132 return VectorList.Count == 3;
1135 bool isVecListFourD() const {
1136 if (!isSingleSpacedVectorList()) return false;
1137 return VectorList.Count == 4;
1140 bool isVecListDPairSpaced() const {
1141 if (isSingleSpacedVectorList()) return false;
1142 return (ARMMCRegisterClasses[ARM::DPairSpcRegClassID]
1143 .contains(VectorList.RegNum));
1146 bool isVecListThreeQ() const {
1147 if (!isDoubleSpacedVectorList()) return false;
1148 return VectorList.Count == 3;
1151 bool isVecListFourQ() const {
1152 if (!isDoubleSpacedVectorList()) return false;
1153 return VectorList.Count == 4;
1156 bool isSingleSpacedVectorAllLanes() const {
1157 return Kind == k_VectorListAllLanes && !VectorList.isDoubleSpaced;
1159 bool isDoubleSpacedVectorAllLanes() const {
1160 return Kind == k_VectorListAllLanes && VectorList.isDoubleSpaced;
1162 bool isVecListOneDAllLanes() const {
1163 if (!isSingleSpacedVectorAllLanes()) return false;
1164 return VectorList.Count == 1;
1167 bool isVecListDPairAllLanes() const {
1168 if (!isSingleSpacedVectorAllLanes()) return false;
1169 return (ARMMCRegisterClasses[ARM::DPairRegClassID]
1170 .contains(VectorList.RegNum));
1173 bool isVecListDPairSpacedAllLanes() const {
1174 if (!isDoubleSpacedVectorAllLanes()) return false;
1175 return VectorList.Count == 2;
1178 bool isVecListThreeDAllLanes() const {
1179 if (!isSingleSpacedVectorAllLanes()) return false;
1180 return VectorList.Count == 3;
1183 bool isVecListThreeQAllLanes() const {
1184 if (!isDoubleSpacedVectorAllLanes()) return false;
1185 return VectorList.Count == 3;
1188 bool isVecListFourDAllLanes() const {
1189 if (!isSingleSpacedVectorAllLanes()) return false;
1190 return VectorList.Count == 4;
1193 bool isVecListFourQAllLanes() const {
1194 if (!isDoubleSpacedVectorAllLanes()) return false;
1195 return VectorList.Count == 4;
1198 bool isSingleSpacedVectorIndexed() const {
1199 return Kind == k_VectorListIndexed && !VectorList.isDoubleSpaced;
1201 bool isDoubleSpacedVectorIndexed() const {
1202 return Kind == k_VectorListIndexed && VectorList.isDoubleSpaced;
1204 bool isVecListOneDByteIndexed() const {
1205 if (!isSingleSpacedVectorIndexed()) return false;
1206 return VectorList.Count == 1 && VectorList.LaneIndex <= 7;
1209 bool isVecListOneDHWordIndexed() const {
1210 if (!isSingleSpacedVectorIndexed()) return false;
1211 return VectorList.Count == 1 && VectorList.LaneIndex <= 3;
1214 bool isVecListOneDWordIndexed() const {
1215 if (!isSingleSpacedVectorIndexed()) return false;
1216 return VectorList.Count == 1 && VectorList.LaneIndex <= 1;
1219 bool isVecListTwoDByteIndexed() const {
1220 if (!isSingleSpacedVectorIndexed()) return false;
1221 return VectorList.Count == 2 && VectorList.LaneIndex <= 7;
1224 bool isVecListTwoDHWordIndexed() const {
1225 if (!isSingleSpacedVectorIndexed()) return false;
1226 return VectorList.Count == 2 && VectorList.LaneIndex <= 3;
1229 bool isVecListTwoQWordIndexed() const {
1230 if (!isDoubleSpacedVectorIndexed()) return false;
1231 return VectorList.Count == 2 && VectorList.LaneIndex <= 1;
1234 bool isVecListTwoQHWordIndexed() const {
1235 if (!isDoubleSpacedVectorIndexed()) return false;
1236 return VectorList.Count == 2 && VectorList.LaneIndex <= 3;
1239 bool isVecListTwoDWordIndexed() const {
1240 if (!isSingleSpacedVectorIndexed()) return false;
1241 return VectorList.Count == 2 && VectorList.LaneIndex <= 1;
1244 bool isVecListThreeDByteIndexed() const {
1245 if (!isSingleSpacedVectorIndexed()) return false;
1246 return VectorList.Count == 3 && VectorList.LaneIndex <= 7;
1249 bool isVecListThreeDHWordIndexed() const {
1250 if (!isSingleSpacedVectorIndexed()) return false;
1251 return VectorList.Count == 3 && VectorList.LaneIndex <= 3;
1254 bool isVecListThreeQWordIndexed() const {
1255 if (!isDoubleSpacedVectorIndexed()) return false;
1256 return VectorList.Count == 3 && VectorList.LaneIndex <= 1;
1259 bool isVecListThreeQHWordIndexed() const {
1260 if (!isDoubleSpacedVectorIndexed()) return false;
1261 return VectorList.Count == 3 && VectorList.LaneIndex <= 3;
1264 bool isVecListThreeDWordIndexed() const {
1265 if (!isSingleSpacedVectorIndexed()) return false;
1266 return VectorList.Count == 3 && VectorList.LaneIndex <= 1;
1269 bool isVecListFourDByteIndexed() const {
1270 if (!isSingleSpacedVectorIndexed()) return false;
1271 return VectorList.Count == 4 && VectorList.LaneIndex <= 7;
1274 bool isVecListFourDHWordIndexed() const {
1275 if (!isSingleSpacedVectorIndexed()) return false;
1276 return VectorList.Count == 4 && VectorList.LaneIndex <= 3;
1279 bool isVecListFourQWordIndexed() const {
1280 if (!isDoubleSpacedVectorIndexed()) return false;
1281 return VectorList.Count == 4 && VectorList.LaneIndex <= 1;
1284 bool isVecListFourQHWordIndexed() const {
1285 if (!isDoubleSpacedVectorIndexed()) return false;
1286 return VectorList.Count == 4 && VectorList.LaneIndex <= 3;
1289 bool isVecListFourDWordIndexed() const {
1290 if (!isSingleSpacedVectorIndexed()) return false;
1291 return VectorList.Count == 4 && VectorList.LaneIndex <= 1;
1294 bool isVectorIndex8() const {
1295 if (Kind != k_VectorIndex) return false;
1296 return VectorIndex.Val < 8;
1298 bool isVectorIndex16() const {
1299 if (Kind != k_VectorIndex) return false;
1300 return VectorIndex.Val < 4;
1302 bool isVectorIndex32() const {
1303 if (Kind != k_VectorIndex) return false;
1304 return VectorIndex.Val < 2;
1307 bool isNEONi8splat() const {
1308 if (!isImm()) return false;
1309 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1310 // Must be a constant.
1311 if (!CE) return false;
1312 int64_t Value = CE->getValue();
1313 // i8 value splatted across 8 bytes. The immediate is just the 8 byte
1315 return Value >= 0 && Value < 256;
1318 bool isNEONi16splat() 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 // i16 value in the range [0,255] or [0x0100, 0xff00]
1325 return (Value >= 0 && Value < 256) || (Value >= 0x0100 && Value <= 0xff00);
1328 bool isNEONi32splat() const {
1329 if (!isImm()) return false;
1330 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1331 // Must be a constant.
1332 if (!CE) return false;
1333 int64_t Value = CE->getValue();
1334 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X.
1335 return (Value >= 0 && Value < 256) ||
1336 (Value >= 0x0100 && Value <= 0xff00) ||
1337 (Value >= 0x010000 && Value <= 0xff0000) ||
1338 (Value >= 0x01000000 && Value <= 0xff000000);
1341 bool isNEONi32vmov() const {
1342 if (!isImm()) return false;
1343 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1344 // Must be a constant.
1345 if (!CE) return false;
1346 int64_t Value = CE->getValue();
1347 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X,
1348 // for VMOV/VMVN only, 00Xf or 0Xff are also accepted.
1349 return (Value >= 0 && Value < 256) ||
1350 (Value >= 0x0100 && Value <= 0xff00) ||
1351 (Value >= 0x010000 && Value <= 0xff0000) ||
1352 (Value >= 0x01000000 && Value <= 0xff000000) ||
1353 (Value >= 0x01ff && Value <= 0xffff && (Value & 0xff) == 0xff) ||
1354 (Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
1356 bool isNEONi32vmovNeg() const {
1357 if (!isImm()) return false;
1358 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1359 // Must be a constant.
1360 if (!CE) return false;
1361 int64_t Value = ~CE->getValue();
1362 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X,
1363 // for VMOV/VMVN only, 00Xf or 0Xff are also accepted.
1364 return (Value >= 0 && Value < 256) ||
1365 (Value >= 0x0100 && Value <= 0xff00) ||
1366 (Value >= 0x010000 && Value <= 0xff0000) ||
1367 (Value >= 0x01000000 && Value <= 0xff000000) ||
1368 (Value >= 0x01ff && Value <= 0xffff && (Value & 0xff) == 0xff) ||
1369 (Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
1372 bool isNEONi64splat() const {
1373 if (!isImm()) return false;
1374 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1375 // Must be a constant.
1376 if (!CE) return false;
1377 uint64_t Value = CE->getValue();
1378 // i64 value with each byte being either 0 or 0xff.
1379 for (unsigned i = 0; i < 8; ++i)
1380 if ((Value & 0xff) != 0 && (Value & 0xff) != 0xff) return false;
1384 void addExpr(MCInst &Inst, const MCExpr *Expr) const {
1385 // Add as immediates when possible. Null MCExpr = 0.
1387 Inst.addOperand(MCOperand::CreateImm(0));
1388 else if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr))
1389 Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
1391 Inst.addOperand(MCOperand::CreateExpr(Expr));
1394 void addCondCodeOperands(MCInst &Inst, unsigned N) const {
1395 assert(N == 2 && "Invalid number of operands!");
1396 Inst.addOperand(MCOperand::CreateImm(unsigned(getCondCode())));
1397 unsigned RegNum = getCondCode() == ARMCC::AL ? 0: ARM::CPSR;
1398 Inst.addOperand(MCOperand::CreateReg(RegNum));
1401 void addCoprocNumOperands(MCInst &Inst, unsigned N) const {
1402 assert(N == 1 && "Invalid number of operands!");
1403 Inst.addOperand(MCOperand::CreateImm(getCoproc()));
1406 void addCoprocRegOperands(MCInst &Inst, unsigned N) const {
1407 assert(N == 1 && "Invalid number of operands!");
1408 Inst.addOperand(MCOperand::CreateImm(getCoproc()));
1411 void addCoprocOptionOperands(MCInst &Inst, unsigned N) const {
1412 assert(N == 1 && "Invalid number of operands!");
1413 Inst.addOperand(MCOperand::CreateImm(CoprocOption.Val));
1416 void addITMaskOperands(MCInst &Inst, unsigned N) const {
1417 assert(N == 1 && "Invalid number of operands!");
1418 Inst.addOperand(MCOperand::CreateImm(ITMask.Mask));
1421 void addITCondCodeOperands(MCInst &Inst, unsigned N) const {
1422 assert(N == 1 && "Invalid number of operands!");
1423 Inst.addOperand(MCOperand::CreateImm(unsigned(getCondCode())));
1426 void addCCOutOperands(MCInst &Inst, unsigned N) const {
1427 assert(N == 1 && "Invalid number of operands!");
1428 Inst.addOperand(MCOperand::CreateReg(getReg()));
1431 void addRegOperands(MCInst &Inst, unsigned N) const {
1432 assert(N == 1 && "Invalid number of operands!");
1433 Inst.addOperand(MCOperand::CreateReg(getReg()));
1436 void addRegShiftedRegOperands(MCInst &Inst, unsigned N) const {
1437 assert(N == 3 && "Invalid number of operands!");
1438 assert(isRegShiftedReg() &&
1439 "addRegShiftedRegOperands() on non RegShiftedReg!");
1440 Inst.addOperand(MCOperand::CreateReg(RegShiftedReg.SrcReg));
1441 Inst.addOperand(MCOperand::CreateReg(RegShiftedReg.ShiftReg));
1442 Inst.addOperand(MCOperand::CreateImm(
1443 ARM_AM::getSORegOpc(RegShiftedReg.ShiftTy, RegShiftedReg.ShiftImm)));
1446 void addRegShiftedImmOperands(MCInst &Inst, unsigned N) const {
1447 assert(N == 2 && "Invalid number of operands!");
1448 assert(isRegShiftedImm() &&
1449 "addRegShiftedImmOperands() on non RegShiftedImm!");
1450 Inst.addOperand(MCOperand::CreateReg(RegShiftedImm.SrcReg));
1451 // Shift of #32 is encoded as 0 where permitted
1452 unsigned Imm = (RegShiftedImm.ShiftImm == 32 ? 0 : RegShiftedImm.ShiftImm);
1453 Inst.addOperand(MCOperand::CreateImm(
1454 ARM_AM::getSORegOpc(RegShiftedImm.ShiftTy, Imm)));
1457 void addShifterImmOperands(MCInst &Inst, unsigned N) const {
1458 assert(N == 1 && "Invalid number of operands!");
1459 Inst.addOperand(MCOperand::CreateImm((ShifterImm.isASR << 5) |
1463 void addRegListOperands(MCInst &Inst, unsigned N) const {
1464 assert(N == 1 && "Invalid number of operands!");
1465 const SmallVectorImpl<unsigned> &RegList = getRegList();
1466 for (SmallVectorImpl<unsigned>::const_iterator
1467 I = RegList.begin(), E = RegList.end(); I != E; ++I)
1468 Inst.addOperand(MCOperand::CreateReg(*I));
1471 void addDPRRegListOperands(MCInst &Inst, unsigned N) const {
1472 addRegListOperands(Inst, N);
1475 void addSPRRegListOperands(MCInst &Inst, unsigned N) const {
1476 addRegListOperands(Inst, N);
1479 void addRotImmOperands(MCInst &Inst, unsigned N) const {
1480 assert(N == 1 && "Invalid number of operands!");
1481 // Encoded as val>>3. The printer handles display as 8, 16, 24.
1482 Inst.addOperand(MCOperand::CreateImm(RotImm.Imm >> 3));
1485 void addBitfieldOperands(MCInst &Inst, unsigned N) const {
1486 assert(N == 1 && "Invalid number of operands!");
1487 // Munge the lsb/width into a bitfield mask.
1488 unsigned lsb = Bitfield.LSB;
1489 unsigned width = Bitfield.Width;
1490 // Make a 32-bit mask w/ the referenced bits clear and all other bits set.
1491 uint32_t Mask = ~(((uint32_t)0xffffffff >> lsb) << (32 - width) >>
1492 (32 - (lsb + width)));
1493 Inst.addOperand(MCOperand::CreateImm(Mask));
1496 void addImmOperands(MCInst &Inst, unsigned N) const {
1497 assert(N == 1 && "Invalid number of operands!");
1498 addExpr(Inst, getImm());
1501 void addFBits16Operands(MCInst &Inst, unsigned N) const {
1502 assert(N == 1 && "Invalid number of operands!");
1503 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1504 Inst.addOperand(MCOperand::CreateImm(16 - CE->getValue()));
1507 void addFBits32Operands(MCInst &Inst, unsigned N) const {
1508 assert(N == 1 && "Invalid number of operands!");
1509 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1510 Inst.addOperand(MCOperand::CreateImm(32 - CE->getValue()));
1513 void addFPImmOperands(MCInst &Inst, unsigned N) const {
1514 assert(N == 1 && "Invalid number of operands!");
1515 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1516 int Val = ARM_AM::getFP32Imm(APInt(32, CE->getValue()));
1517 Inst.addOperand(MCOperand::CreateImm(Val));
1520 void addImm8s4Operands(MCInst &Inst, unsigned N) const {
1521 assert(N == 1 && "Invalid number of operands!");
1522 // FIXME: We really want to scale the value here, but the LDRD/STRD
1523 // instruction don't encode operands that way yet.
1524 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1525 Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
1528 void addImm0_1020s4Operands(MCInst &Inst, unsigned N) const {
1529 assert(N == 1 && "Invalid number of operands!");
1530 // The immediate is scaled by four in the encoding and is stored
1531 // in the MCInst as such. Lop off the low two bits here.
1532 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1533 Inst.addOperand(MCOperand::CreateImm(CE->getValue() / 4));
1536 void addImm0_508s4NegOperands(MCInst &Inst, unsigned N) const {
1537 assert(N == 1 && "Invalid number of operands!");
1538 // The immediate is scaled by four in the encoding and is stored
1539 // in the MCInst as such. Lop off the low two bits here.
1540 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1541 Inst.addOperand(MCOperand::CreateImm(-(CE->getValue() / 4)));
1544 void addImm0_508s4Operands(MCInst &Inst, unsigned N) const {
1545 assert(N == 1 && "Invalid number of operands!");
1546 // The immediate is scaled by four in the encoding and is stored
1547 // in the MCInst as such. Lop off the low two bits here.
1548 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1549 Inst.addOperand(MCOperand::CreateImm(CE->getValue() / 4));
1552 void addImm1_16Operands(MCInst &Inst, unsigned N) const {
1553 assert(N == 1 && "Invalid number of operands!");
1554 // The constant encodes as the immediate-1, and we store in the instruction
1555 // the bits as encoded, so subtract off one here.
1556 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1557 Inst.addOperand(MCOperand::CreateImm(CE->getValue() - 1));
1560 void addImm1_32Operands(MCInst &Inst, unsigned N) const {
1561 assert(N == 1 && "Invalid number of operands!");
1562 // The constant encodes as the immediate-1, and we store in the instruction
1563 // the bits as encoded, so subtract off one here.
1564 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1565 Inst.addOperand(MCOperand::CreateImm(CE->getValue() - 1));
1568 void addImmThumbSROperands(MCInst &Inst, unsigned N) const {
1569 assert(N == 1 && "Invalid number of operands!");
1570 // The constant encodes as the immediate, except for 32, which encodes as
1572 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1573 unsigned Imm = CE->getValue();
1574 Inst.addOperand(MCOperand::CreateImm((Imm == 32 ? 0 : Imm)));
1577 void addPKHASRImmOperands(MCInst &Inst, unsigned N) const {
1578 assert(N == 1 && "Invalid number of operands!");
1579 // An ASR value of 32 encodes as 0, so that's how we want to add it to
1580 // the instruction as well.
1581 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1582 int Val = CE->getValue();
1583 Inst.addOperand(MCOperand::CreateImm(Val == 32 ? 0 : Val));
1586 void addT2SOImmNotOperands(MCInst &Inst, unsigned N) const {
1587 assert(N == 1 && "Invalid number of operands!");
1588 // The operand is actually a t2_so_imm, but we have its bitwise
1589 // negation in the assembly source, so twiddle it here.
1590 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1591 Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
1594 void addT2SOImmNegOperands(MCInst &Inst, unsigned N) const {
1595 assert(N == 1 && "Invalid number of operands!");
1596 // The operand is actually a t2_so_imm, but we have its
1597 // negation in the assembly source, so twiddle it here.
1598 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1599 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1602 void addImm0_4095NegOperands(MCInst &Inst, unsigned N) const {
1603 assert(N == 1 && "Invalid number of operands!");
1604 // The operand is actually an imm0_4095, but we have its
1605 // negation in the assembly source, so twiddle it here.
1606 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1607 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1610 void addARMSOImmNotOperands(MCInst &Inst, unsigned N) const {
1611 assert(N == 1 && "Invalid number of operands!");
1612 // The operand is actually a so_imm, but we have its bitwise
1613 // negation in the assembly source, so twiddle it here.
1614 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1615 Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
1618 void addARMSOImmNegOperands(MCInst &Inst, unsigned N) const {
1619 assert(N == 1 && "Invalid number of operands!");
1620 // The operand is actually a so_imm, but we have its
1621 // negation in the assembly source, so twiddle it here.
1622 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1623 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1626 void addMemBarrierOptOperands(MCInst &Inst, unsigned N) const {
1627 assert(N == 1 && "Invalid number of operands!");
1628 Inst.addOperand(MCOperand::CreateImm(unsigned(getMemBarrierOpt())));
1631 void addMemNoOffsetOperands(MCInst &Inst, unsigned N) const {
1632 assert(N == 1 && "Invalid number of operands!");
1633 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1636 void addMemPCRelImm12Operands(MCInst &Inst, unsigned N) const {
1637 assert(N == 1 && "Invalid number of operands!");
1638 int32_t Imm = Memory.OffsetImm->getValue();
1639 // FIXME: Handle #-0
1640 if (Imm == INT32_MIN) Imm = 0;
1641 Inst.addOperand(MCOperand::CreateImm(Imm));
1644 void addAlignedMemoryOperands(MCInst &Inst, unsigned N) const {
1645 assert(N == 2 && "Invalid number of operands!");
1646 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1647 Inst.addOperand(MCOperand::CreateImm(Memory.Alignment));
1650 void addAddrMode2Operands(MCInst &Inst, unsigned N) const {
1651 assert(N == 3 && "Invalid number of operands!");
1652 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1653 if (!Memory.OffsetRegNum) {
1654 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1655 // Special case for #-0
1656 if (Val == INT32_MIN) Val = 0;
1657 if (Val < 0) Val = -Val;
1658 Val = ARM_AM::getAM2Opc(AddSub, Val, ARM_AM::no_shift);
1660 // For register offset, we encode the shift type and negation flag
1662 Val = ARM_AM::getAM2Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add,
1663 Memory.ShiftImm, Memory.ShiftType);
1665 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1666 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1667 Inst.addOperand(MCOperand::CreateImm(Val));
1670 void addAM2OffsetImmOperands(MCInst &Inst, unsigned N) const {
1671 assert(N == 2 && "Invalid number of operands!");
1672 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1673 assert(CE && "non-constant AM2OffsetImm operand!");
1674 int32_t Val = CE->getValue();
1675 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1676 // Special case for #-0
1677 if (Val == INT32_MIN) Val = 0;
1678 if (Val < 0) Val = -Val;
1679 Val = ARM_AM::getAM2Opc(AddSub, Val, ARM_AM::no_shift);
1680 Inst.addOperand(MCOperand::CreateReg(0));
1681 Inst.addOperand(MCOperand::CreateImm(Val));
1684 void addAddrMode3Operands(MCInst &Inst, unsigned N) const {
1685 assert(N == 3 && "Invalid number of operands!");
1686 // If we have an immediate that's not a constant, treat it as a label
1687 // reference needing a fixup. If it is a constant, it's something else
1688 // and we reject it.
1690 Inst.addOperand(MCOperand::CreateExpr(getImm()));
1691 Inst.addOperand(MCOperand::CreateReg(0));
1692 Inst.addOperand(MCOperand::CreateImm(0));
1696 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1697 if (!Memory.OffsetRegNum) {
1698 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1699 // Special case for #-0
1700 if (Val == INT32_MIN) Val = 0;
1701 if (Val < 0) Val = -Val;
1702 Val = ARM_AM::getAM3Opc(AddSub, Val);
1704 // For register offset, we encode the shift type and negation flag
1706 Val = ARM_AM::getAM3Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add, 0);
1708 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1709 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1710 Inst.addOperand(MCOperand::CreateImm(Val));
1713 void addAM3OffsetOperands(MCInst &Inst, unsigned N) const {
1714 assert(N == 2 && "Invalid number of operands!");
1715 if (Kind == k_PostIndexRegister) {
1717 ARM_AM::getAM3Opc(PostIdxReg.isAdd ? ARM_AM::add : ARM_AM::sub, 0);
1718 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
1719 Inst.addOperand(MCOperand::CreateImm(Val));
1724 const MCConstantExpr *CE = static_cast<const MCConstantExpr*>(getImm());
1725 int32_t Val = CE->getValue();
1726 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1727 // Special case for #-0
1728 if (Val == INT32_MIN) Val = 0;
1729 if (Val < 0) Val = -Val;
1730 Val = ARM_AM::getAM3Opc(AddSub, Val);
1731 Inst.addOperand(MCOperand::CreateReg(0));
1732 Inst.addOperand(MCOperand::CreateImm(Val));
1735 void addAddrMode5Operands(MCInst &Inst, unsigned N) const {
1736 assert(N == 2 && "Invalid number of operands!");
1737 // If we have an immediate that's not a constant, treat it as a label
1738 // reference needing a fixup. If it is a constant, it's something else
1739 // and we reject it.
1741 Inst.addOperand(MCOperand::CreateExpr(getImm()));
1742 Inst.addOperand(MCOperand::CreateImm(0));
1746 // The lower two bits are always zero and as such are not encoded.
1747 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() / 4 : 0;
1748 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1749 // Special case for #-0
1750 if (Val == INT32_MIN) Val = 0;
1751 if (Val < 0) Val = -Val;
1752 Val = ARM_AM::getAM5Opc(AddSub, Val);
1753 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1754 Inst.addOperand(MCOperand::CreateImm(Val));
1757 void addMemImm8s4OffsetOperands(MCInst &Inst, unsigned N) const {
1758 assert(N == 2 && "Invalid number of operands!");
1759 // If we have an immediate that's not a constant, treat it as a label
1760 // reference needing a fixup. If it is a constant, it's something else
1761 // and we reject it.
1763 Inst.addOperand(MCOperand::CreateExpr(getImm()));
1764 Inst.addOperand(MCOperand::CreateImm(0));
1768 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1769 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1770 Inst.addOperand(MCOperand::CreateImm(Val));
1773 void addMemImm0_1020s4OffsetOperands(MCInst &Inst, unsigned N) const {
1774 assert(N == 2 && "Invalid number of operands!");
1775 // The lower two bits are always zero and as such are not encoded.
1776 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() / 4 : 0;
1777 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1778 Inst.addOperand(MCOperand::CreateImm(Val));
1781 void addMemImm8OffsetOperands(MCInst &Inst, unsigned N) const {
1782 assert(N == 2 && "Invalid number of operands!");
1783 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1784 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1785 Inst.addOperand(MCOperand::CreateImm(Val));
1788 void addMemPosImm8OffsetOperands(MCInst &Inst, unsigned N) const {
1789 addMemImm8OffsetOperands(Inst, N);
1792 void addMemNegImm8OffsetOperands(MCInst &Inst, unsigned N) const {
1793 addMemImm8OffsetOperands(Inst, N);
1796 void addMemUImm12OffsetOperands(MCInst &Inst, unsigned N) const {
1797 assert(N == 2 && "Invalid number of operands!");
1798 // If this is an immediate, it's a label reference.
1800 addExpr(Inst, getImm());
1801 Inst.addOperand(MCOperand::CreateImm(0));
1805 // Otherwise, it's a normal memory reg+offset.
1806 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1807 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1808 Inst.addOperand(MCOperand::CreateImm(Val));
1811 void addMemImm12OffsetOperands(MCInst &Inst, unsigned N) const {
1812 assert(N == 2 && "Invalid number of operands!");
1813 // If this is an immediate, it's a label reference.
1815 addExpr(Inst, getImm());
1816 Inst.addOperand(MCOperand::CreateImm(0));
1820 // Otherwise, it's a normal memory reg+offset.
1821 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1822 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1823 Inst.addOperand(MCOperand::CreateImm(Val));
1826 void addMemTBBOperands(MCInst &Inst, unsigned N) const {
1827 assert(N == 2 && "Invalid number of operands!");
1828 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1829 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1832 void addMemTBHOperands(MCInst &Inst, unsigned N) const {
1833 assert(N == 2 && "Invalid number of operands!");
1834 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1835 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1838 void addMemRegOffsetOperands(MCInst &Inst, unsigned N) const {
1839 assert(N == 3 && "Invalid number of operands!");
1841 ARM_AM::getAM2Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add,
1842 Memory.ShiftImm, Memory.ShiftType);
1843 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1844 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1845 Inst.addOperand(MCOperand::CreateImm(Val));
1848 void addT2MemRegOffsetOperands(MCInst &Inst, unsigned N) const {
1849 assert(N == 3 && "Invalid number of operands!");
1850 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1851 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1852 Inst.addOperand(MCOperand::CreateImm(Memory.ShiftImm));
1855 void addMemThumbRROperands(MCInst &Inst, unsigned N) const {
1856 assert(N == 2 && "Invalid number of operands!");
1857 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1858 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1861 void addMemThumbRIs4Operands(MCInst &Inst, unsigned N) const {
1862 assert(N == 2 && "Invalid number of operands!");
1863 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 4) : 0;
1864 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1865 Inst.addOperand(MCOperand::CreateImm(Val));
1868 void addMemThumbRIs2Operands(MCInst &Inst, unsigned N) const {
1869 assert(N == 2 && "Invalid number of operands!");
1870 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 2) : 0;
1871 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1872 Inst.addOperand(MCOperand::CreateImm(Val));
1875 void addMemThumbRIs1Operands(MCInst &Inst, unsigned N) const {
1876 assert(N == 2 && "Invalid number of operands!");
1877 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue()) : 0;
1878 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1879 Inst.addOperand(MCOperand::CreateImm(Val));
1882 void addMemThumbSPIOperands(MCInst &Inst, unsigned N) const {
1883 assert(N == 2 && "Invalid number of operands!");
1884 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 4) : 0;
1885 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1886 Inst.addOperand(MCOperand::CreateImm(Val));
1889 void addPostIdxImm8Operands(MCInst &Inst, unsigned N) const {
1890 assert(N == 1 && "Invalid number of operands!");
1891 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1892 assert(CE && "non-constant post-idx-imm8 operand!");
1893 int Imm = CE->getValue();
1894 bool isAdd = Imm >= 0;
1895 if (Imm == INT32_MIN) Imm = 0;
1896 Imm = (Imm < 0 ? -Imm : Imm) | (int)isAdd << 8;
1897 Inst.addOperand(MCOperand::CreateImm(Imm));
1900 void addPostIdxImm8s4Operands(MCInst &Inst, unsigned N) const {
1901 assert(N == 1 && "Invalid number of operands!");
1902 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1903 assert(CE && "non-constant post-idx-imm8s4 operand!");
1904 int Imm = CE->getValue();
1905 bool isAdd = Imm >= 0;
1906 if (Imm == INT32_MIN) Imm = 0;
1907 // Immediate is scaled by 4.
1908 Imm = ((Imm < 0 ? -Imm : Imm) / 4) | (int)isAdd << 8;
1909 Inst.addOperand(MCOperand::CreateImm(Imm));
1912 void addPostIdxRegOperands(MCInst &Inst, unsigned N) const {
1913 assert(N == 2 && "Invalid number of operands!");
1914 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
1915 Inst.addOperand(MCOperand::CreateImm(PostIdxReg.isAdd));
1918 void addPostIdxRegShiftedOperands(MCInst &Inst, unsigned N) const {
1919 assert(N == 2 && "Invalid number of operands!");
1920 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
1921 // The sign, shift type, and shift amount are encoded in a single operand
1922 // using the AM2 encoding helpers.
1923 ARM_AM::AddrOpc opc = PostIdxReg.isAdd ? ARM_AM::add : ARM_AM::sub;
1924 unsigned Imm = ARM_AM::getAM2Opc(opc, PostIdxReg.ShiftImm,
1925 PostIdxReg.ShiftTy);
1926 Inst.addOperand(MCOperand::CreateImm(Imm));
1929 void addMSRMaskOperands(MCInst &Inst, unsigned N) const {
1930 assert(N == 1 && "Invalid number of operands!");
1931 Inst.addOperand(MCOperand::CreateImm(unsigned(getMSRMask())));
1934 void addProcIFlagsOperands(MCInst &Inst, unsigned N) const {
1935 assert(N == 1 && "Invalid number of operands!");
1936 Inst.addOperand(MCOperand::CreateImm(unsigned(getProcIFlags())));
1939 void addVecListOperands(MCInst &Inst, unsigned N) const {
1940 assert(N == 1 && "Invalid number of operands!");
1941 Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
1944 void addVecListIndexedOperands(MCInst &Inst, unsigned N) const {
1945 assert(N == 2 && "Invalid number of operands!");
1946 Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
1947 Inst.addOperand(MCOperand::CreateImm(VectorList.LaneIndex));
1950 void addVectorIndex8Operands(MCInst &Inst, unsigned N) const {
1951 assert(N == 1 && "Invalid number of operands!");
1952 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
1955 void addVectorIndex16Operands(MCInst &Inst, unsigned N) const {
1956 assert(N == 1 && "Invalid number of operands!");
1957 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
1960 void addVectorIndex32Operands(MCInst &Inst, unsigned N) const {
1961 assert(N == 1 && "Invalid number of operands!");
1962 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
1965 void addNEONi8splatOperands(MCInst &Inst, unsigned N) const {
1966 assert(N == 1 && "Invalid number of operands!");
1967 // The immediate encodes the type of constant as well as the value.
1968 // Mask in that this is an i8 splat.
1969 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1970 Inst.addOperand(MCOperand::CreateImm(CE->getValue() | 0xe00));
1973 void addNEONi16splatOperands(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();
1979 Value = (Value >> 8) | 0xa00;
1982 Inst.addOperand(MCOperand::CreateImm(Value));
1985 void addNEONi32splatOperands(MCInst &Inst, unsigned N) const {
1986 assert(N == 1 && "Invalid number of operands!");
1987 // The immediate encodes the type of constant as well as the value.
1988 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1989 unsigned Value = CE->getValue();
1990 if (Value >= 256 && Value <= 0xff00)
1991 Value = (Value >> 8) | 0x200;
1992 else if (Value > 0xffff && Value <= 0xff0000)
1993 Value = (Value >> 16) | 0x400;
1994 else if (Value > 0xffffff)
1995 Value = (Value >> 24) | 0x600;
1996 Inst.addOperand(MCOperand::CreateImm(Value));
1999 void addNEONi32vmovOperands(MCInst &Inst, unsigned N) const {
2000 assert(N == 1 && "Invalid number of operands!");
2001 // The immediate encodes the type of constant as well as the value.
2002 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2003 unsigned Value = CE->getValue();
2004 if (Value >= 256 && Value <= 0xffff)
2005 Value = (Value >> 8) | ((Value & 0xff) ? 0xc00 : 0x200);
2006 else if (Value > 0xffff && Value <= 0xffffff)
2007 Value = (Value >> 16) | ((Value & 0xff) ? 0xd00 : 0x400);
2008 else if (Value > 0xffffff)
2009 Value = (Value >> 24) | 0x600;
2010 Inst.addOperand(MCOperand::CreateImm(Value));
2013 void addNEONi32vmovNegOperands(MCInst &Inst, unsigned N) const {
2014 assert(N == 1 && "Invalid number of operands!");
2015 // The immediate encodes the type of constant as well as the value.
2016 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2017 unsigned Value = ~CE->getValue();
2018 if (Value >= 256 && Value <= 0xffff)
2019 Value = (Value >> 8) | ((Value & 0xff) ? 0xc00 : 0x200);
2020 else if (Value > 0xffff && Value <= 0xffffff)
2021 Value = (Value >> 16) | ((Value & 0xff) ? 0xd00 : 0x400);
2022 else if (Value > 0xffffff)
2023 Value = (Value >> 24) | 0x600;
2024 Inst.addOperand(MCOperand::CreateImm(Value));
2027 void addNEONi64splatOperands(MCInst &Inst, unsigned N) const {
2028 assert(N == 1 && "Invalid number of operands!");
2029 // The immediate encodes the type of constant as well as the value.
2030 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2031 uint64_t Value = CE->getValue();
2033 for (unsigned i = 0; i < 8; ++i, Value >>= 8) {
2034 Imm |= (Value & 1) << i;
2036 Inst.addOperand(MCOperand::CreateImm(Imm | 0x1e00));
2039 virtual void print(raw_ostream &OS) const;
2041 static ARMOperand *CreateITMask(unsigned Mask, SMLoc S) {
2042 ARMOperand *Op = new ARMOperand(k_ITCondMask);
2043 Op->ITMask.Mask = Mask;
2049 static ARMOperand *CreateCondCode(ARMCC::CondCodes CC, SMLoc S) {
2050 ARMOperand *Op = new ARMOperand(k_CondCode);
2057 static ARMOperand *CreateCoprocNum(unsigned CopVal, SMLoc S) {
2058 ARMOperand *Op = new ARMOperand(k_CoprocNum);
2059 Op->Cop.Val = CopVal;
2065 static ARMOperand *CreateCoprocReg(unsigned CopVal, SMLoc S) {
2066 ARMOperand *Op = new ARMOperand(k_CoprocReg);
2067 Op->Cop.Val = CopVal;
2073 static ARMOperand *CreateCoprocOption(unsigned Val, SMLoc S, SMLoc E) {
2074 ARMOperand *Op = new ARMOperand(k_CoprocOption);
2081 static ARMOperand *CreateCCOut(unsigned RegNum, SMLoc S) {
2082 ARMOperand *Op = new ARMOperand(k_CCOut);
2083 Op->Reg.RegNum = RegNum;
2089 static ARMOperand *CreateToken(StringRef Str, SMLoc S) {
2090 ARMOperand *Op = new ARMOperand(k_Token);
2091 Op->Tok.Data = Str.data();
2092 Op->Tok.Length = Str.size();
2098 static ARMOperand *CreateReg(unsigned RegNum, SMLoc S, SMLoc E) {
2099 ARMOperand *Op = new ARMOperand(k_Register);
2100 Op->Reg.RegNum = RegNum;
2106 static ARMOperand *CreateShiftedRegister(ARM_AM::ShiftOpc ShTy,
2111 ARMOperand *Op = new ARMOperand(k_ShiftedRegister);
2112 Op->RegShiftedReg.ShiftTy = ShTy;
2113 Op->RegShiftedReg.SrcReg = SrcReg;
2114 Op->RegShiftedReg.ShiftReg = ShiftReg;
2115 Op->RegShiftedReg.ShiftImm = ShiftImm;
2121 static ARMOperand *CreateShiftedImmediate(ARM_AM::ShiftOpc ShTy,
2125 ARMOperand *Op = new ARMOperand(k_ShiftedImmediate);
2126 Op->RegShiftedImm.ShiftTy = ShTy;
2127 Op->RegShiftedImm.SrcReg = SrcReg;
2128 Op->RegShiftedImm.ShiftImm = ShiftImm;
2134 static ARMOperand *CreateShifterImm(bool isASR, unsigned Imm,
2136 ARMOperand *Op = new ARMOperand(k_ShifterImmediate);
2137 Op->ShifterImm.isASR = isASR;
2138 Op->ShifterImm.Imm = Imm;
2144 static ARMOperand *CreateRotImm(unsigned Imm, SMLoc S, SMLoc E) {
2145 ARMOperand *Op = new ARMOperand(k_RotateImmediate);
2146 Op->RotImm.Imm = Imm;
2152 static ARMOperand *CreateBitfield(unsigned LSB, unsigned Width,
2154 ARMOperand *Op = new ARMOperand(k_BitfieldDescriptor);
2155 Op->Bitfield.LSB = LSB;
2156 Op->Bitfield.Width = Width;
2163 CreateRegList(const SmallVectorImpl<std::pair<unsigned, SMLoc> > &Regs,
2164 SMLoc StartLoc, SMLoc EndLoc) {
2165 KindTy Kind = k_RegisterList;
2167 if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Regs.front().first))
2168 Kind = k_DPRRegisterList;
2169 else if (ARMMCRegisterClasses[ARM::SPRRegClassID].
2170 contains(Regs.front().first))
2171 Kind = k_SPRRegisterList;
2173 ARMOperand *Op = new ARMOperand(Kind);
2174 for (SmallVectorImpl<std::pair<unsigned, SMLoc> >::const_iterator
2175 I = Regs.begin(), E = Regs.end(); I != E; ++I)
2176 Op->Registers.push_back(I->first);
2177 array_pod_sort(Op->Registers.begin(), Op->Registers.end());
2178 Op->StartLoc = StartLoc;
2179 Op->EndLoc = EndLoc;
2183 static ARMOperand *CreateVectorList(unsigned RegNum, unsigned Count,
2184 bool isDoubleSpaced, SMLoc S, SMLoc E) {
2185 ARMOperand *Op = new ARMOperand(k_VectorList);
2186 Op->VectorList.RegNum = RegNum;
2187 Op->VectorList.Count = Count;
2188 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2194 static ARMOperand *CreateVectorListAllLanes(unsigned RegNum, unsigned Count,
2195 bool isDoubleSpaced,
2197 ARMOperand *Op = new ARMOperand(k_VectorListAllLanes);
2198 Op->VectorList.RegNum = RegNum;
2199 Op->VectorList.Count = Count;
2200 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2206 static ARMOperand *CreateVectorListIndexed(unsigned RegNum, unsigned Count,
2208 bool isDoubleSpaced,
2210 ARMOperand *Op = new ARMOperand(k_VectorListIndexed);
2211 Op->VectorList.RegNum = RegNum;
2212 Op->VectorList.Count = Count;
2213 Op->VectorList.LaneIndex = Index;
2214 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2220 static ARMOperand *CreateVectorIndex(unsigned Idx, SMLoc S, SMLoc E,
2222 ARMOperand *Op = new ARMOperand(k_VectorIndex);
2223 Op->VectorIndex.Val = Idx;
2229 static ARMOperand *CreateImm(const MCExpr *Val, SMLoc S, SMLoc E) {
2230 ARMOperand *Op = new ARMOperand(k_Immediate);
2237 static ARMOperand *CreateMem(unsigned BaseRegNum,
2238 const MCConstantExpr *OffsetImm,
2239 unsigned OffsetRegNum,
2240 ARM_AM::ShiftOpc ShiftType,
2245 ARMOperand *Op = new ARMOperand(k_Memory);
2246 Op->Memory.BaseRegNum = BaseRegNum;
2247 Op->Memory.OffsetImm = OffsetImm;
2248 Op->Memory.OffsetRegNum = OffsetRegNum;
2249 Op->Memory.ShiftType = ShiftType;
2250 Op->Memory.ShiftImm = ShiftImm;
2251 Op->Memory.Alignment = Alignment;
2252 Op->Memory.isNegative = isNegative;
2258 static ARMOperand *CreatePostIdxReg(unsigned RegNum, bool isAdd,
2259 ARM_AM::ShiftOpc ShiftTy,
2262 ARMOperand *Op = new ARMOperand(k_PostIndexRegister);
2263 Op->PostIdxReg.RegNum = RegNum;
2264 Op->PostIdxReg.isAdd = isAdd;
2265 Op->PostIdxReg.ShiftTy = ShiftTy;
2266 Op->PostIdxReg.ShiftImm = ShiftImm;
2272 static ARMOperand *CreateMemBarrierOpt(ARM_MB::MemBOpt Opt, SMLoc S) {
2273 ARMOperand *Op = new ARMOperand(k_MemBarrierOpt);
2274 Op->MBOpt.Val = Opt;
2280 static ARMOperand *CreateProcIFlags(ARM_PROC::IFlags IFlags, SMLoc S) {
2281 ARMOperand *Op = new ARMOperand(k_ProcIFlags);
2282 Op->IFlags.Val = IFlags;
2288 static ARMOperand *CreateMSRMask(unsigned MMask, SMLoc S) {
2289 ARMOperand *Op = new ARMOperand(k_MSRMask);
2290 Op->MMask.Val = MMask;
2297 } // end anonymous namespace.
2299 void ARMOperand::print(raw_ostream &OS) const {
2302 OS << "<ARMCC::" << ARMCondCodeToString(getCondCode()) << ">";
2305 OS << "<ccout " << getReg() << ">";
2307 case k_ITCondMask: {
2308 static const char *const MaskStr[] = {
2309 "()", "(t)", "(e)", "(tt)", "(et)", "(te)", "(ee)", "(ttt)", "(ett)",
2310 "(tet)", "(eet)", "(tte)", "(ete)", "(tee)", "(eee)"
2312 assert((ITMask.Mask & 0xf) == ITMask.Mask);
2313 OS << "<it-mask " << MaskStr[ITMask.Mask] << ">";
2317 OS << "<coprocessor number: " << getCoproc() << ">";
2320 OS << "<coprocessor register: " << getCoproc() << ">";
2322 case k_CoprocOption:
2323 OS << "<coprocessor option: " << CoprocOption.Val << ">";
2326 OS << "<mask: " << getMSRMask() << ">";
2329 getImm()->print(OS);
2331 case k_MemBarrierOpt:
2332 OS << "<ARM_MB::" << MemBOptToString(getMemBarrierOpt()) << ">";
2336 << " base:" << Memory.BaseRegNum;
2339 case k_PostIndexRegister:
2340 OS << "post-idx register " << (PostIdxReg.isAdd ? "" : "-")
2341 << PostIdxReg.RegNum;
2342 if (PostIdxReg.ShiftTy != ARM_AM::no_shift)
2343 OS << ARM_AM::getShiftOpcStr(PostIdxReg.ShiftTy) << " "
2344 << PostIdxReg.ShiftImm;
2347 case k_ProcIFlags: {
2348 OS << "<ARM_PROC::";
2349 unsigned IFlags = getProcIFlags();
2350 for (int i=2; i >= 0; --i)
2351 if (IFlags & (1 << i))
2352 OS << ARM_PROC::IFlagsToString(1 << i);
2357 OS << "<register " << getReg() << ">";
2359 case k_ShifterImmediate:
2360 OS << "<shift " << (ShifterImm.isASR ? "asr" : "lsl")
2361 << " #" << ShifterImm.Imm << ">";
2363 case k_ShiftedRegister:
2364 OS << "<so_reg_reg "
2365 << RegShiftedReg.SrcReg << " "
2366 << ARM_AM::getShiftOpcStr(RegShiftedReg.ShiftTy)
2367 << " " << RegShiftedReg.ShiftReg << ">";
2369 case k_ShiftedImmediate:
2370 OS << "<so_reg_imm "
2371 << RegShiftedImm.SrcReg << " "
2372 << ARM_AM::getShiftOpcStr(RegShiftedImm.ShiftTy)
2373 << " #" << RegShiftedImm.ShiftImm << ">";
2375 case k_RotateImmediate:
2376 OS << "<ror " << " #" << (RotImm.Imm * 8) << ">";
2378 case k_BitfieldDescriptor:
2379 OS << "<bitfield " << "lsb: " << Bitfield.LSB
2380 << ", width: " << Bitfield.Width << ">";
2382 case k_RegisterList:
2383 case k_DPRRegisterList:
2384 case k_SPRRegisterList: {
2385 OS << "<register_list ";
2387 const SmallVectorImpl<unsigned> &RegList = getRegList();
2388 for (SmallVectorImpl<unsigned>::const_iterator
2389 I = RegList.begin(), E = RegList.end(); I != E; ) {
2391 if (++I < E) OS << ", ";
2398 OS << "<vector_list " << VectorList.Count << " * "
2399 << VectorList.RegNum << ">";
2401 case k_VectorListAllLanes:
2402 OS << "<vector_list(all lanes) " << VectorList.Count << " * "
2403 << VectorList.RegNum << ">";
2405 case k_VectorListIndexed:
2406 OS << "<vector_list(lane " << VectorList.LaneIndex << ") "
2407 << VectorList.Count << " * " << VectorList.RegNum << ">";
2410 OS << "'" << getToken() << "'";
2413 OS << "<vectorindex " << getVectorIndex() << ">";
2418 /// @name Auto-generated Match Functions
2421 static unsigned MatchRegisterName(StringRef Name);
2425 bool ARMAsmParser::ParseRegister(unsigned &RegNo,
2426 SMLoc &StartLoc, SMLoc &EndLoc) {
2427 StartLoc = Parser.getTok().getLoc();
2428 RegNo = tryParseRegister();
2429 EndLoc = Parser.getTok().getLoc();
2431 return (RegNo == (unsigned)-1);
2434 /// Try to parse a register name. The token must be an Identifier when called,
2435 /// and if it is a register name the token is eaten and the register number is
2436 /// returned. Otherwise return -1.
2438 int ARMAsmParser::tryParseRegister() {
2439 const AsmToken &Tok = Parser.getTok();
2440 if (Tok.isNot(AsmToken::Identifier)) return -1;
2442 std::string lowerCase = Tok.getString().lower();
2443 unsigned RegNum = MatchRegisterName(lowerCase);
2445 RegNum = StringSwitch<unsigned>(lowerCase)
2446 .Case("r13", ARM::SP)
2447 .Case("r14", ARM::LR)
2448 .Case("r15", ARM::PC)
2449 .Case("ip", ARM::R12)
2450 // Additional register name aliases for 'gas' compatibility.
2451 .Case("a1", ARM::R0)
2452 .Case("a2", ARM::R1)
2453 .Case("a3", ARM::R2)
2454 .Case("a4", ARM::R3)
2455 .Case("v1", ARM::R4)
2456 .Case("v2", ARM::R5)
2457 .Case("v3", ARM::R6)
2458 .Case("v4", ARM::R7)
2459 .Case("v5", ARM::R8)
2460 .Case("v6", ARM::R9)
2461 .Case("v7", ARM::R10)
2462 .Case("v8", ARM::R11)
2463 .Case("sb", ARM::R9)
2464 .Case("sl", ARM::R10)
2465 .Case("fp", ARM::R11)
2469 // Check for aliases registered via .req. Canonicalize to lower case.
2470 // That's more consistent since register names are case insensitive, and
2471 // it's how the original entry was passed in from MC/MCParser/AsmParser.
2472 StringMap<unsigned>::const_iterator Entry = RegisterReqs.find(lowerCase);
2473 // If no match, return failure.
2474 if (Entry == RegisterReqs.end())
2476 Parser.Lex(); // Eat identifier token.
2477 return Entry->getValue();
2480 Parser.Lex(); // Eat identifier token.
2485 // Try to parse a shifter (e.g., "lsl <amt>"). On success, return 0.
2486 // If a recoverable error occurs, return 1. If an irrecoverable error
2487 // occurs, return -1. An irrecoverable error is one where tokens have been
2488 // consumed in the process of trying to parse the shifter (i.e., when it is
2489 // indeed a shifter operand, but malformed).
2490 int ARMAsmParser::tryParseShiftRegister(
2491 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2492 SMLoc S = Parser.getTok().getLoc();
2493 const AsmToken &Tok = Parser.getTok();
2494 assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier");
2496 std::string lowerCase = Tok.getString().lower();
2497 ARM_AM::ShiftOpc ShiftTy = StringSwitch<ARM_AM::ShiftOpc>(lowerCase)
2498 .Case("asl", ARM_AM::lsl)
2499 .Case("lsl", ARM_AM::lsl)
2500 .Case("lsr", ARM_AM::lsr)
2501 .Case("asr", ARM_AM::asr)
2502 .Case("ror", ARM_AM::ror)
2503 .Case("rrx", ARM_AM::rrx)
2504 .Default(ARM_AM::no_shift);
2506 if (ShiftTy == ARM_AM::no_shift)
2509 Parser.Lex(); // Eat the operator.
2511 // The source register for the shift has already been added to the
2512 // operand list, so we need to pop it off and combine it into the shifted
2513 // register operand instead.
2514 OwningPtr<ARMOperand> PrevOp((ARMOperand*)Operands.pop_back_val());
2515 if (!PrevOp->isReg())
2516 return Error(PrevOp->getStartLoc(), "shift must be of a register");
2517 int SrcReg = PrevOp->getReg();
2520 if (ShiftTy == ARM_AM::rrx) {
2521 // RRX Doesn't have an explicit shift amount. The encoder expects
2522 // the shift register to be the same as the source register. Seems odd,
2526 // Figure out if this is shifted by a constant or a register (for non-RRX).
2527 if (Parser.getTok().is(AsmToken::Hash) ||
2528 Parser.getTok().is(AsmToken::Dollar)) {
2529 Parser.Lex(); // Eat hash.
2530 SMLoc ImmLoc = Parser.getTok().getLoc();
2531 const MCExpr *ShiftExpr = 0;
2532 if (getParser().ParseExpression(ShiftExpr)) {
2533 Error(ImmLoc, "invalid immediate shift value");
2536 // The expression must be evaluatable as an immediate.
2537 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftExpr);
2539 Error(ImmLoc, "invalid immediate shift value");
2542 // Range check the immediate.
2543 // lsl, ror: 0 <= imm <= 31
2544 // lsr, asr: 0 <= imm <= 32
2545 Imm = CE->getValue();
2547 ((ShiftTy == ARM_AM::lsl || ShiftTy == ARM_AM::ror) && Imm > 31) ||
2548 ((ShiftTy == ARM_AM::lsr || ShiftTy == ARM_AM::asr) && Imm > 32)) {
2549 Error(ImmLoc, "immediate shift value out of range");
2552 // shift by zero is a nop. Always send it through as lsl.
2553 // ('as' compatibility)
2555 ShiftTy = ARM_AM::lsl;
2556 } else if (Parser.getTok().is(AsmToken::Identifier)) {
2557 ShiftReg = tryParseRegister();
2558 SMLoc L = Parser.getTok().getLoc();
2559 if (ShiftReg == -1) {
2560 Error (L, "expected immediate or register in shift operand");
2564 Error (Parser.getTok().getLoc(),
2565 "expected immediate or register in shift operand");
2570 if (ShiftReg && ShiftTy != ARM_AM::rrx)
2571 Operands.push_back(ARMOperand::CreateShiftedRegister(ShiftTy, SrcReg,
2573 S, Parser.getTok().getLoc()));
2575 Operands.push_back(ARMOperand::CreateShiftedImmediate(ShiftTy, SrcReg, Imm,
2576 S, Parser.getTok().getLoc()));
2582 /// Try to parse a register name. The token must be an Identifier when called.
2583 /// If it's a register, an AsmOperand is created. Another AsmOperand is created
2584 /// if there is a "writeback". 'true' if it's not a register.
2586 /// TODO this is likely to change to allow different register types and or to
2587 /// parse for a specific register type.
2589 tryParseRegisterWithWriteBack(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2590 SMLoc S = Parser.getTok().getLoc();
2591 int RegNo = tryParseRegister();
2595 Operands.push_back(ARMOperand::CreateReg(RegNo, S, Parser.getTok().getLoc()));
2597 const AsmToken &ExclaimTok = Parser.getTok();
2598 if (ExclaimTok.is(AsmToken::Exclaim)) {
2599 Operands.push_back(ARMOperand::CreateToken(ExclaimTok.getString(),
2600 ExclaimTok.getLoc()));
2601 Parser.Lex(); // Eat exclaim token
2605 // Also check for an index operand. This is only legal for vector registers,
2606 // but that'll get caught OK in operand matching, so we don't need to
2607 // explicitly filter everything else out here.
2608 if (Parser.getTok().is(AsmToken::LBrac)) {
2609 SMLoc SIdx = Parser.getTok().getLoc();
2610 Parser.Lex(); // Eat left bracket token.
2612 const MCExpr *ImmVal;
2613 if (getParser().ParseExpression(ImmVal))
2615 const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(ImmVal);
2617 return TokError("immediate value expected for vector index");
2619 SMLoc E = Parser.getTok().getLoc();
2620 if (Parser.getTok().isNot(AsmToken::RBrac))
2621 return Error(E, "']' expected");
2623 Parser.Lex(); // Eat right bracket token.
2625 Operands.push_back(ARMOperand::CreateVectorIndex(MCE->getValue(),
2633 /// MatchCoprocessorOperandName - Try to parse an coprocessor related
2634 /// instruction with a symbolic operand name. Example: "p1", "p7", "c3",
2636 static int MatchCoprocessorOperandName(StringRef Name, char CoprocOp) {
2637 // Use the same layout as the tablegen'erated register name matcher. Ugly,
2639 switch (Name.size()) {
2642 if (Name[0] != CoprocOp)
2658 if (Name[0] != CoprocOp || Name[1] != '1')
2662 case '0': return 10;
2663 case '1': return 11;
2664 case '2': return 12;
2665 case '3': return 13;
2666 case '4': return 14;
2667 case '5': return 15;
2672 /// parseITCondCode - Try to parse a condition code for an IT instruction.
2673 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2674 parseITCondCode(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2675 SMLoc S = Parser.getTok().getLoc();
2676 const AsmToken &Tok = Parser.getTok();
2677 if (!Tok.is(AsmToken::Identifier))
2678 return MatchOperand_NoMatch;
2679 unsigned CC = StringSwitch<unsigned>(Tok.getString().lower())
2680 .Case("eq", ARMCC::EQ)
2681 .Case("ne", ARMCC::NE)
2682 .Case("hs", ARMCC::HS)
2683 .Case("cs", ARMCC::HS)
2684 .Case("lo", ARMCC::LO)
2685 .Case("cc", ARMCC::LO)
2686 .Case("mi", ARMCC::MI)
2687 .Case("pl", ARMCC::PL)
2688 .Case("vs", ARMCC::VS)
2689 .Case("vc", ARMCC::VC)
2690 .Case("hi", ARMCC::HI)
2691 .Case("ls", ARMCC::LS)
2692 .Case("ge", ARMCC::GE)
2693 .Case("lt", ARMCC::LT)
2694 .Case("gt", ARMCC::GT)
2695 .Case("le", ARMCC::LE)
2696 .Case("al", ARMCC::AL)
2699 return MatchOperand_NoMatch;
2700 Parser.Lex(); // Eat the token.
2702 Operands.push_back(ARMOperand::CreateCondCode(ARMCC::CondCodes(CC), S));
2704 return MatchOperand_Success;
2707 /// parseCoprocNumOperand - Try to parse an coprocessor number operand. The
2708 /// token must be an Identifier when called, and if it is a coprocessor
2709 /// number, the token is eaten and the operand is added to the operand list.
2710 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2711 parseCoprocNumOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2712 SMLoc S = Parser.getTok().getLoc();
2713 const AsmToken &Tok = Parser.getTok();
2714 if (Tok.isNot(AsmToken::Identifier))
2715 return MatchOperand_NoMatch;
2717 int Num = MatchCoprocessorOperandName(Tok.getString(), 'p');
2719 return MatchOperand_NoMatch;
2721 Parser.Lex(); // Eat identifier token.
2722 Operands.push_back(ARMOperand::CreateCoprocNum(Num, S));
2723 return MatchOperand_Success;
2726 /// parseCoprocRegOperand - Try to parse an coprocessor register operand. The
2727 /// token must be an Identifier when called, and if it is a coprocessor
2728 /// number, the token is eaten and the operand is added to the operand list.
2729 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2730 parseCoprocRegOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2731 SMLoc S = Parser.getTok().getLoc();
2732 const AsmToken &Tok = Parser.getTok();
2733 if (Tok.isNot(AsmToken::Identifier))
2734 return MatchOperand_NoMatch;
2736 int Reg = MatchCoprocessorOperandName(Tok.getString(), 'c');
2738 return MatchOperand_NoMatch;
2740 Parser.Lex(); // Eat identifier token.
2741 Operands.push_back(ARMOperand::CreateCoprocReg(Reg, S));
2742 return MatchOperand_Success;
2745 /// parseCoprocOptionOperand - Try to parse an coprocessor option operand.
2746 /// coproc_option : '{' imm0_255 '}'
2747 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2748 parseCoprocOptionOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2749 SMLoc S = Parser.getTok().getLoc();
2751 // If this isn't a '{', this isn't a coprocessor immediate operand.
2752 if (Parser.getTok().isNot(AsmToken::LCurly))
2753 return MatchOperand_NoMatch;
2754 Parser.Lex(); // Eat the '{'
2757 SMLoc Loc = Parser.getTok().getLoc();
2758 if (getParser().ParseExpression(Expr)) {
2759 Error(Loc, "illegal expression");
2760 return MatchOperand_ParseFail;
2762 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
2763 if (!CE || CE->getValue() < 0 || CE->getValue() > 255) {
2764 Error(Loc, "coprocessor option must be an immediate in range [0, 255]");
2765 return MatchOperand_ParseFail;
2767 int Val = CE->getValue();
2769 // Check for and consume the closing '}'
2770 if (Parser.getTok().isNot(AsmToken::RCurly))
2771 return MatchOperand_ParseFail;
2772 SMLoc E = Parser.getTok().getLoc();
2773 Parser.Lex(); // Eat the '}'
2775 Operands.push_back(ARMOperand::CreateCoprocOption(Val, S, E));
2776 return MatchOperand_Success;
2779 // For register list parsing, we need to map from raw GPR register numbering
2780 // to the enumeration values. The enumeration values aren't sorted by
2781 // register number due to our using "sp", "lr" and "pc" as canonical names.
2782 static unsigned getNextRegister(unsigned Reg) {
2783 // If this is a GPR, we need to do it manually, otherwise we can rely
2784 // on the sort ordering of the enumeration since the other reg-classes
2786 if (!ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
2789 default: llvm_unreachable("Invalid GPR number!");
2790 case ARM::R0: return ARM::R1; case ARM::R1: return ARM::R2;
2791 case ARM::R2: return ARM::R3; case ARM::R3: return ARM::R4;
2792 case ARM::R4: return ARM::R5; case ARM::R5: return ARM::R6;
2793 case ARM::R6: return ARM::R7; case ARM::R7: return ARM::R8;
2794 case ARM::R8: return ARM::R9; case ARM::R9: return ARM::R10;
2795 case ARM::R10: return ARM::R11; case ARM::R11: return ARM::R12;
2796 case ARM::R12: return ARM::SP; case ARM::SP: return ARM::LR;
2797 case ARM::LR: return ARM::PC; case ARM::PC: return ARM::R0;
2801 // Return the low-subreg of a given Q register.
2802 static unsigned getDRegFromQReg(unsigned QReg) {
2804 default: llvm_unreachable("expected a Q register!");
2805 case ARM::Q0: return ARM::D0;
2806 case ARM::Q1: return ARM::D2;
2807 case ARM::Q2: return ARM::D4;
2808 case ARM::Q3: return ARM::D6;
2809 case ARM::Q4: return ARM::D8;
2810 case ARM::Q5: return ARM::D10;
2811 case ARM::Q6: return ARM::D12;
2812 case ARM::Q7: return ARM::D14;
2813 case ARM::Q8: return ARM::D16;
2814 case ARM::Q9: return ARM::D18;
2815 case ARM::Q10: return ARM::D20;
2816 case ARM::Q11: return ARM::D22;
2817 case ARM::Q12: return ARM::D24;
2818 case ARM::Q13: return ARM::D26;
2819 case ARM::Q14: return ARM::D28;
2820 case ARM::Q15: return ARM::D30;
2824 /// Parse a register list.
2826 parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2827 assert(Parser.getTok().is(AsmToken::LCurly) &&
2828 "Token is not a Left Curly Brace");
2829 SMLoc S = Parser.getTok().getLoc();
2830 Parser.Lex(); // Eat '{' token.
2831 SMLoc RegLoc = Parser.getTok().getLoc();
2833 // Check the first register in the list to see what register class
2834 // this is a list of.
2835 int Reg = tryParseRegister();
2837 return Error(RegLoc, "register expected");
2839 // The reglist instructions have at most 16 registers, so reserve
2840 // space for that many.
2841 SmallVector<std::pair<unsigned, SMLoc>, 16> Registers;
2843 // Allow Q regs and just interpret them as the two D sub-registers.
2844 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
2845 Reg = getDRegFromQReg(Reg);
2846 Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
2849 const MCRegisterClass *RC;
2850 if (ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
2851 RC = &ARMMCRegisterClasses[ARM::GPRRegClassID];
2852 else if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Reg))
2853 RC = &ARMMCRegisterClasses[ARM::DPRRegClassID];
2854 else if (ARMMCRegisterClasses[ARM::SPRRegClassID].contains(Reg))
2855 RC = &ARMMCRegisterClasses[ARM::SPRRegClassID];
2857 return Error(RegLoc, "invalid register in register list");
2859 // Store the register.
2860 Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
2862 // This starts immediately after the first register token in the list,
2863 // so we can see either a comma or a minus (range separator) as a legal
2865 while (Parser.getTok().is(AsmToken::Comma) ||
2866 Parser.getTok().is(AsmToken::Minus)) {
2867 if (Parser.getTok().is(AsmToken::Minus)) {
2868 Parser.Lex(); // Eat the minus.
2869 SMLoc EndLoc = Parser.getTok().getLoc();
2870 int EndReg = tryParseRegister();
2872 return Error(EndLoc, "register expected");
2873 // Allow Q regs and just interpret them as the two D sub-registers.
2874 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(EndReg))
2875 EndReg = getDRegFromQReg(EndReg) + 1;
2876 // If the register is the same as the start reg, there's nothing
2880 // The register must be in the same register class as the first.
2881 if (!RC->contains(EndReg))
2882 return Error(EndLoc, "invalid register in register list");
2883 // Ranges must go from low to high.
2884 if (getARMRegisterNumbering(Reg) > getARMRegisterNumbering(EndReg))
2885 return Error(EndLoc, "bad range in register list");
2887 // Add all the registers in the range to the register list.
2888 while (Reg != EndReg) {
2889 Reg = getNextRegister(Reg);
2890 Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
2894 Parser.Lex(); // Eat the comma.
2895 RegLoc = Parser.getTok().getLoc();
2897 const AsmToken RegTok = Parser.getTok();
2898 Reg = tryParseRegister();
2900 return Error(RegLoc, "register expected");
2901 // Allow Q regs and just interpret them as the two D sub-registers.
2902 bool isQReg = false;
2903 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
2904 Reg = getDRegFromQReg(Reg);
2907 // The register must be in the same register class as the first.
2908 if (!RC->contains(Reg))
2909 return Error(RegLoc, "invalid register in register list");
2910 // List must be monotonically increasing.
2911 if (getARMRegisterNumbering(Reg) < getARMRegisterNumbering(OldReg)) {
2912 if (ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
2913 Warning(RegLoc, "register list not in ascending order");
2915 return Error(RegLoc, "register list not in ascending order");
2917 if (getARMRegisterNumbering(Reg) == getARMRegisterNumbering(OldReg)) {
2918 Warning(RegLoc, "duplicated register (" + RegTok.getString() +
2919 ") in register list");
2922 // VFP register lists must also be contiguous.
2923 // It's OK to use the enumeration values directly here rather, as the
2924 // VFP register classes have the enum sorted properly.
2925 if (RC != &ARMMCRegisterClasses[ARM::GPRRegClassID] &&
2927 return Error(RegLoc, "non-contiguous register range");
2928 Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
2930 Registers.push_back(std::pair<unsigned, SMLoc>(++Reg, RegLoc));
2933 SMLoc E = Parser.getTok().getLoc();
2934 if (Parser.getTok().isNot(AsmToken::RCurly))
2935 return Error(E, "'}' expected");
2936 Parser.Lex(); // Eat '}' token.
2938 // Push the register list operand.
2939 Operands.push_back(ARMOperand::CreateRegList(Registers, S, E));
2941 // The ARM system instruction variants for LDM/STM have a '^' token here.
2942 if (Parser.getTok().is(AsmToken::Caret)) {
2943 Operands.push_back(ARMOperand::CreateToken("^",Parser.getTok().getLoc()));
2944 Parser.Lex(); // Eat '^' token.
2950 // Helper function to parse the lane index for vector lists.
2951 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2952 parseVectorLane(VectorLaneTy &LaneKind, unsigned &Index) {
2953 Index = 0; // Always return a defined index value.
2954 if (Parser.getTok().is(AsmToken::LBrac)) {
2955 Parser.Lex(); // Eat the '['.
2956 if (Parser.getTok().is(AsmToken::RBrac)) {
2957 // "Dn[]" is the 'all lanes' syntax.
2958 LaneKind = AllLanes;
2959 Parser.Lex(); // Eat the ']'.
2960 return MatchOperand_Success;
2963 // There's an optional '#' token here. Normally there wouldn't be, but
2964 // inline assemble puts one in, and it's friendly to accept that.
2965 if (Parser.getTok().is(AsmToken::Hash))
2966 Parser.Lex(); // Eat the '#'
2968 const MCExpr *LaneIndex;
2969 SMLoc Loc = Parser.getTok().getLoc();
2970 if (getParser().ParseExpression(LaneIndex)) {
2971 Error(Loc, "illegal expression");
2972 return MatchOperand_ParseFail;
2974 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(LaneIndex);
2976 Error(Loc, "lane index must be empty or an integer");
2977 return MatchOperand_ParseFail;
2979 if (Parser.getTok().isNot(AsmToken::RBrac)) {
2980 Error(Parser.getTok().getLoc(), "']' expected");
2981 return MatchOperand_ParseFail;
2983 Parser.Lex(); // Eat the ']'.
2984 int64_t Val = CE->getValue();
2986 // FIXME: Make this range check context sensitive for .8, .16, .32.
2987 if (Val < 0 || Val > 7) {
2988 Error(Parser.getTok().getLoc(), "lane index out of range");
2989 return MatchOperand_ParseFail;
2992 LaneKind = IndexedLane;
2993 return MatchOperand_Success;
2996 return MatchOperand_Success;
2999 // parse a vector register list
3000 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3001 parseVectorList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3002 VectorLaneTy LaneKind;
3004 SMLoc S = Parser.getTok().getLoc();
3005 // As an extension (to match gas), support a plain D register or Q register
3006 // (without encosing curly braces) as a single or double entry list,
3008 if (Parser.getTok().is(AsmToken::Identifier)) {
3009 int Reg = tryParseRegister();
3011 return MatchOperand_NoMatch;
3012 SMLoc E = Parser.getTok().getLoc();
3013 if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Reg)) {
3014 OperandMatchResultTy Res = parseVectorLane(LaneKind, LaneIndex);
3015 if (Res != MatchOperand_Success)
3019 E = Parser.getTok().getLoc();
3020 Operands.push_back(ARMOperand::CreateVectorList(Reg, 1, false, S, E));
3023 E = Parser.getTok().getLoc();
3024 Operands.push_back(ARMOperand::CreateVectorListAllLanes(Reg, 1, false,
3028 Operands.push_back(ARMOperand::CreateVectorListIndexed(Reg, 1,
3033 return MatchOperand_Success;
3035 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3036 Reg = getDRegFromQReg(Reg);
3037 OperandMatchResultTy Res = parseVectorLane(LaneKind, LaneIndex);
3038 if (Res != MatchOperand_Success)
3042 E = Parser.getTok().getLoc();
3043 Reg = MRI->getMatchingSuperReg(Reg, ARM::dsub_0,
3044 &ARMMCRegisterClasses[ARM::DPairRegClassID]);
3045 Operands.push_back(ARMOperand::CreateVectorList(Reg, 2, false, S, E));
3048 E = Parser.getTok().getLoc();
3049 Reg = MRI->getMatchingSuperReg(Reg, ARM::dsub_0,
3050 &ARMMCRegisterClasses[ARM::DPairRegClassID]);
3051 Operands.push_back(ARMOperand::CreateVectorListAllLanes(Reg, 2, false,
3055 Operands.push_back(ARMOperand::CreateVectorListIndexed(Reg, 2,
3060 return MatchOperand_Success;
3062 Error(S, "vector register expected");
3063 return MatchOperand_ParseFail;
3066 if (Parser.getTok().isNot(AsmToken::LCurly))
3067 return MatchOperand_NoMatch;
3069 Parser.Lex(); // Eat '{' token.
3070 SMLoc RegLoc = Parser.getTok().getLoc();
3072 int Reg = tryParseRegister();
3074 Error(RegLoc, "register expected");
3075 return MatchOperand_ParseFail;
3079 unsigned FirstReg = Reg;
3080 // The list is of D registers, but we also allow Q regs and just interpret
3081 // them as the two D sub-registers.
3082 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3083 FirstReg = Reg = getDRegFromQReg(Reg);
3084 Spacing = 1; // double-spacing requires explicit D registers, otherwise
3085 // it's ambiguous with four-register single spaced.
3089 if (parseVectorLane(LaneKind, LaneIndex) != MatchOperand_Success)
3090 return MatchOperand_ParseFail;
3092 while (Parser.getTok().is(AsmToken::Comma) ||
3093 Parser.getTok().is(AsmToken::Minus)) {
3094 if (Parser.getTok().is(AsmToken::Minus)) {
3096 Spacing = 1; // Register range implies a single spaced list.
3097 else if (Spacing == 2) {
3098 Error(Parser.getTok().getLoc(),
3099 "sequential registers in double spaced list");
3100 return MatchOperand_ParseFail;
3102 Parser.Lex(); // Eat the minus.
3103 SMLoc EndLoc = Parser.getTok().getLoc();
3104 int EndReg = tryParseRegister();
3106 Error(EndLoc, "register expected");
3107 return MatchOperand_ParseFail;
3109 // Allow Q regs and just interpret them as the two D sub-registers.
3110 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(EndReg))
3111 EndReg = getDRegFromQReg(EndReg) + 1;
3112 // If the register is the same as the start reg, there's nothing
3116 // The register must be in the same register class as the first.
3117 if (!ARMMCRegisterClasses[ARM::DPRRegClassID].contains(EndReg)) {
3118 Error(EndLoc, "invalid register in register list");
3119 return MatchOperand_ParseFail;
3121 // Ranges must go from low to high.
3123 Error(EndLoc, "bad range in register list");
3124 return MatchOperand_ParseFail;
3126 // Parse the lane specifier if present.
3127 VectorLaneTy NextLaneKind;
3128 unsigned NextLaneIndex;
3129 if (parseVectorLane(NextLaneKind, NextLaneIndex) != MatchOperand_Success)
3130 return MatchOperand_ParseFail;
3131 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3132 Error(EndLoc, "mismatched lane index in register list");
3133 return MatchOperand_ParseFail;
3135 EndLoc = Parser.getTok().getLoc();
3137 // Add all the registers in the range to the register list.
3138 Count += EndReg - Reg;
3142 Parser.Lex(); // Eat the comma.
3143 RegLoc = Parser.getTok().getLoc();
3145 Reg = tryParseRegister();
3147 Error(RegLoc, "register expected");
3148 return MatchOperand_ParseFail;
3150 // vector register lists must be contiguous.
3151 // It's OK to use the enumeration values directly here rather, as the
3152 // VFP register classes have the enum sorted properly.
3154 // The list is of D registers, but we also allow Q regs and just interpret
3155 // them as the two D sub-registers.
3156 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3158 Spacing = 1; // Register range implies a single spaced list.
3159 else if (Spacing == 2) {
3161 "invalid register in double-spaced list (must be 'D' register')");
3162 return MatchOperand_ParseFail;
3164 Reg = getDRegFromQReg(Reg);
3165 if (Reg != OldReg + 1) {
3166 Error(RegLoc, "non-contiguous register range");
3167 return MatchOperand_ParseFail;
3171 // Parse the lane specifier if present.
3172 VectorLaneTy NextLaneKind;
3173 unsigned NextLaneIndex;
3174 SMLoc EndLoc = Parser.getTok().getLoc();
3175 if (parseVectorLane(NextLaneKind, NextLaneIndex) != MatchOperand_Success)
3176 return MatchOperand_ParseFail;
3177 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3178 Error(EndLoc, "mismatched lane index in register list");
3179 return MatchOperand_ParseFail;
3183 // Normal D register.
3184 // Figure out the register spacing (single or double) of the list if
3185 // we don't know it already.
3187 Spacing = 1 + (Reg == OldReg + 2);
3189 // Just check that it's contiguous and keep going.
3190 if (Reg != OldReg + Spacing) {
3191 Error(RegLoc, "non-contiguous register range");
3192 return MatchOperand_ParseFail;
3195 // Parse the lane specifier if present.
3196 VectorLaneTy NextLaneKind;
3197 unsigned NextLaneIndex;
3198 SMLoc EndLoc = Parser.getTok().getLoc();
3199 if (parseVectorLane(NextLaneKind, NextLaneIndex) != MatchOperand_Success)
3200 return MatchOperand_ParseFail;
3201 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3202 Error(EndLoc, "mismatched lane index in register list");
3203 return MatchOperand_ParseFail;
3207 SMLoc E = Parser.getTok().getLoc();
3208 if (Parser.getTok().isNot(AsmToken::RCurly)) {
3209 Error(E, "'}' expected");
3210 return MatchOperand_ParseFail;
3212 Parser.Lex(); // Eat '}' token.
3216 // Two-register operands have been converted to the
3217 // composite register classes.
3219 const MCRegisterClass *RC = (Spacing == 1) ?
3220 &ARMMCRegisterClasses[ARM::DPairRegClassID] :
3221 &ARMMCRegisterClasses[ARM::DPairSpcRegClassID];
3222 FirstReg = MRI->getMatchingSuperReg(FirstReg, ARM::dsub_0, RC);
3225 Operands.push_back(ARMOperand::CreateVectorList(FirstReg, Count,
3226 (Spacing == 2), S, E));
3229 // Two-register operands have been converted to the
3230 // composite register classes.
3232 const MCRegisterClass *RC = (Spacing == 1) ?
3233 &ARMMCRegisterClasses[ARM::DPairRegClassID] :
3234 &ARMMCRegisterClasses[ARM::DPairSpcRegClassID];
3235 FirstReg = MRI->getMatchingSuperReg(FirstReg, ARM::dsub_0, RC);
3237 Operands.push_back(ARMOperand::CreateVectorListAllLanes(FirstReg, Count,
3242 Operands.push_back(ARMOperand::CreateVectorListIndexed(FirstReg, Count,
3248 return MatchOperand_Success;
3251 /// parseMemBarrierOptOperand - Try to parse DSB/DMB data barrier options.
3252 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3253 parseMemBarrierOptOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3254 SMLoc S = Parser.getTok().getLoc();
3255 const AsmToken &Tok = Parser.getTok();
3256 assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier");
3257 StringRef OptStr = Tok.getString();
3259 unsigned Opt = StringSwitch<unsigned>(OptStr.slice(0, OptStr.size()))
3260 .Case("sy", ARM_MB::SY)
3261 .Case("st", ARM_MB::ST)
3262 .Case("sh", ARM_MB::ISH)
3263 .Case("ish", ARM_MB::ISH)
3264 .Case("shst", ARM_MB::ISHST)
3265 .Case("ishst", ARM_MB::ISHST)
3266 .Case("nsh", ARM_MB::NSH)
3267 .Case("un", ARM_MB::NSH)
3268 .Case("nshst", ARM_MB::NSHST)
3269 .Case("unst", ARM_MB::NSHST)
3270 .Case("osh", ARM_MB::OSH)
3271 .Case("oshst", ARM_MB::OSHST)
3275 return MatchOperand_NoMatch;
3277 Parser.Lex(); // Eat identifier token.
3278 Operands.push_back(ARMOperand::CreateMemBarrierOpt((ARM_MB::MemBOpt)Opt, S));
3279 return MatchOperand_Success;
3282 /// parseProcIFlagsOperand - Try to parse iflags from CPS instruction.
3283 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3284 parseProcIFlagsOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3285 SMLoc S = Parser.getTok().getLoc();
3286 const AsmToken &Tok = Parser.getTok();
3287 if (!Tok.is(AsmToken::Identifier))
3288 return MatchOperand_NoMatch;
3289 StringRef IFlagsStr = Tok.getString();
3291 // An iflags string of "none" is interpreted to mean that none of the AIF
3292 // bits are set. Not a terribly useful instruction, but a valid encoding.
3293 unsigned IFlags = 0;
3294 if (IFlagsStr != "none") {
3295 for (int i = 0, e = IFlagsStr.size(); i != e; ++i) {
3296 unsigned Flag = StringSwitch<unsigned>(IFlagsStr.substr(i, 1))
3297 .Case("a", ARM_PROC::A)
3298 .Case("i", ARM_PROC::I)
3299 .Case("f", ARM_PROC::F)
3302 // If some specific iflag is already set, it means that some letter is
3303 // present more than once, this is not acceptable.
3304 if (Flag == ~0U || (IFlags & Flag))
3305 return MatchOperand_NoMatch;
3311 Parser.Lex(); // Eat identifier token.
3312 Operands.push_back(ARMOperand::CreateProcIFlags((ARM_PROC::IFlags)IFlags, S));
3313 return MatchOperand_Success;
3316 /// parseMSRMaskOperand - Try to parse mask flags from MSR instruction.
3317 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3318 parseMSRMaskOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3319 SMLoc S = Parser.getTok().getLoc();
3320 const AsmToken &Tok = Parser.getTok();
3321 assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier");
3322 StringRef Mask = Tok.getString();
3325 // See ARMv6-M 10.1.1
3326 std::string Name = Mask.lower();
3327 unsigned FlagsVal = StringSwitch<unsigned>(Name)
3328 // Note: in the documentation:
3329 // ARM deprecates using MSR APSR without a _<bits> qualifier as an alias
3330 // for MSR APSR_nzcvq.
3331 // but we do make it an alias here. This is so to get the "mask encoding"
3332 // bits correct on MSR APSR writes.
3334 // FIXME: Note the 0xc00 "mask encoding" bits version of the registers
3335 // should really only be allowed when writing a special register. Note
3336 // they get dropped in the MRS instruction reading a special register as
3337 // the SYSm field is only 8 bits.
3339 // FIXME: the _g and _nzcvqg versions are only allowed if the processor
3340 // includes the DSP extension but that is not checked.
3341 .Case("apsr", 0x800)
3342 .Case("apsr_nzcvq", 0x800)
3343 .Case("apsr_g", 0x400)
3344 .Case("apsr_nzcvqg", 0xc00)
3345 .Case("iapsr", 0x801)
3346 .Case("iapsr_nzcvq", 0x801)
3347 .Case("iapsr_g", 0x401)
3348 .Case("iapsr_nzcvqg", 0xc01)
3349 .Case("eapsr", 0x802)
3350 .Case("eapsr_nzcvq", 0x802)
3351 .Case("eapsr_g", 0x402)
3352 .Case("eapsr_nzcvqg", 0xc02)
3353 .Case("xpsr", 0x803)
3354 .Case("xpsr_nzcvq", 0x803)
3355 .Case("xpsr_g", 0x403)
3356 .Case("xpsr_nzcvqg", 0xc03)
3362 .Case("primask", 16)
3363 .Case("basepri", 17)
3364 .Case("basepri_max", 18)
3365 .Case("faultmask", 19)
3366 .Case("control", 20)
3369 if (FlagsVal == ~0U)
3370 return MatchOperand_NoMatch;
3372 if (!hasV7Ops() && FlagsVal >= 17 && FlagsVal <= 19)
3373 // basepri, basepri_max and faultmask only valid for V7m.
3374 return MatchOperand_NoMatch;
3376 Parser.Lex(); // Eat identifier token.
3377 Operands.push_back(ARMOperand::CreateMSRMask(FlagsVal, S));
3378 return MatchOperand_Success;
3381 // Split spec_reg from flag, example: CPSR_sxf => "CPSR" and "sxf"
3382 size_t Start = 0, Next = Mask.find('_');
3383 StringRef Flags = "";
3384 std::string SpecReg = Mask.slice(Start, Next).lower();
3385 if (Next != StringRef::npos)
3386 Flags = Mask.slice(Next+1, Mask.size());
3388 // FlagsVal contains the complete mask:
3390 // 4: Special Reg (cpsr, apsr => 0; spsr => 1)
3391 unsigned FlagsVal = 0;
3393 if (SpecReg == "apsr") {
3394 FlagsVal = StringSwitch<unsigned>(Flags)
3395 .Case("nzcvq", 0x8) // same as CPSR_f
3396 .Case("g", 0x4) // same as CPSR_s
3397 .Case("nzcvqg", 0xc) // same as CPSR_fs
3400 if (FlagsVal == ~0U) {
3402 return MatchOperand_NoMatch;
3404 FlagsVal = 8; // No flag
3406 } else if (SpecReg == "cpsr" || SpecReg == "spsr") {
3407 // cpsr_all is an alias for cpsr_fc, as is plain cpsr.
3408 if (Flags == "all" || Flags == "")
3410 for (int i = 0, e = Flags.size(); i != e; ++i) {
3411 unsigned Flag = StringSwitch<unsigned>(Flags.substr(i, 1))
3418 // If some specific flag is already set, it means that some letter is
3419 // present more than once, this is not acceptable.
3420 if (FlagsVal == ~0U || (FlagsVal & Flag))
3421 return MatchOperand_NoMatch;
3424 } else // No match for special register.
3425 return MatchOperand_NoMatch;
3427 // Special register without flags is NOT equivalent to "fc" flags.
3428 // NOTE: This is a divergence from gas' behavior. Uncommenting the following
3429 // two lines would enable gas compatibility at the expense of breaking
3435 // Bit 4: Special Reg (cpsr, apsr => 0; spsr => 1)
3436 if (SpecReg == "spsr")
3439 Parser.Lex(); // Eat identifier token.
3440 Operands.push_back(ARMOperand::CreateMSRMask(FlagsVal, S));
3441 return MatchOperand_Success;
3444 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3445 parsePKHImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands, StringRef Op,
3446 int Low, int High) {
3447 const AsmToken &Tok = Parser.getTok();
3448 if (Tok.isNot(AsmToken::Identifier)) {
3449 Error(Parser.getTok().getLoc(), Op + " operand expected.");
3450 return MatchOperand_ParseFail;
3452 StringRef ShiftName = Tok.getString();
3453 std::string LowerOp = Op.lower();
3454 std::string UpperOp = Op.upper();
3455 if (ShiftName != LowerOp && ShiftName != UpperOp) {
3456 Error(Parser.getTok().getLoc(), Op + " operand expected.");
3457 return MatchOperand_ParseFail;
3459 Parser.Lex(); // Eat shift type token.
3461 // There must be a '#' and a shift amount.
3462 if (Parser.getTok().isNot(AsmToken::Hash) &&
3463 Parser.getTok().isNot(AsmToken::Dollar)) {
3464 Error(Parser.getTok().getLoc(), "'#' expected");
3465 return MatchOperand_ParseFail;
3467 Parser.Lex(); // Eat hash token.
3469 const MCExpr *ShiftAmount;
3470 SMLoc Loc = Parser.getTok().getLoc();
3471 if (getParser().ParseExpression(ShiftAmount)) {
3472 Error(Loc, "illegal expression");
3473 return MatchOperand_ParseFail;
3475 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
3477 Error(Loc, "constant expression expected");
3478 return MatchOperand_ParseFail;
3480 int Val = CE->getValue();
3481 if (Val < Low || Val > High) {
3482 Error(Loc, "immediate value out of range");
3483 return MatchOperand_ParseFail;
3486 Operands.push_back(ARMOperand::CreateImm(CE, Loc, Parser.getTok().getLoc()));
3488 return MatchOperand_Success;
3491 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3492 parseSetEndImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3493 const AsmToken &Tok = Parser.getTok();
3494 SMLoc S = Tok.getLoc();
3495 if (Tok.isNot(AsmToken::Identifier)) {
3496 Error(Tok.getLoc(), "'be' or 'le' operand expected");
3497 return MatchOperand_ParseFail;
3499 int Val = StringSwitch<int>(Tok.getString())
3503 Parser.Lex(); // Eat the token.
3506 Error(Tok.getLoc(), "'be' or 'le' operand expected");
3507 return MatchOperand_ParseFail;
3509 Operands.push_back(ARMOperand::CreateImm(MCConstantExpr::Create(Val,
3511 S, Parser.getTok().getLoc()));
3512 return MatchOperand_Success;
3515 /// parseShifterImm - Parse the shifter immediate operand for SSAT/USAT
3516 /// instructions. Legal values are:
3517 /// lsl #n 'n' in [0,31]
3518 /// asr #n 'n' in [1,32]
3519 /// n == 32 encoded as n == 0.
3520 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3521 parseShifterImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3522 const AsmToken &Tok = Parser.getTok();
3523 SMLoc S = Tok.getLoc();
3524 if (Tok.isNot(AsmToken::Identifier)) {
3525 Error(S, "shift operator 'asr' or 'lsl' expected");
3526 return MatchOperand_ParseFail;
3528 StringRef ShiftName = Tok.getString();
3530 if (ShiftName == "lsl" || ShiftName == "LSL")
3532 else if (ShiftName == "asr" || ShiftName == "ASR")
3535 Error(S, "shift operator 'asr' or 'lsl' expected");
3536 return MatchOperand_ParseFail;
3538 Parser.Lex(); // Eat the operator.
3540 // A '#' and a shift amount.
3541 if (Parser.getTok().isNot(AsmToken::Hash) &&
3542 Parser.getTok().isNot(AsmToken::Dollar)) {
3543 Error(Parser.getTok().getLoc(), "'#' expected");
3544 return MatchOperand_ParseFail;
3546 Parser.Lex(); // Eat hash token.
3548 const MCExpr *ShiftAmount;
3549 SMLoc E = Parser.getTok().getLoc();
3550 if (getParser().ParseExpression(ShiftAmount)) {
3551 Error(E, "malformed shift expression");
3552 return MatchOperand_ParseFail;
3554 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
3556 Error(E, "shift amount must be an immediate");
3557 return MatchOperand_ParseFail;
3560 int64_t Val = CE->getValue();
3562 // Shift amount must be in [1,32]
3563 if (Val < 1 || Val > 32) {
3564 Error(E, "'asr' shift amount must be in range [1,32]");
3565 return MatchOperand_ParseFail;
3567 // asr #32 encoded as asr #0, but is not allowed in Thumb2 mode.
3568 if (isThumb() && Val == 32) {
3569 Error(E, "'asr #32' shift amount not allowed in Thumb mode");
3570 return MatchOperand_ParseFail;
3572 if (Val == 32) Val = 0;
3574 // Shift amount must be in [1,32]
3575 if (Val < 0 || Val > 31) {
3576 Error(E, "'lsr' shift amount must be in range [0,31]");
3577 return MatchOperand_ParseFail;
3581 E = Parser.getTok().getLoc();
3582 Operands.push_back(ARMOperand::CreateShifterImm(isASR, Val, S, E));
3584 return MatchOperand_Success;
3587 /// parseRotImm - Parse the shifter immediate operand for SXTB/UXTB family
3588 /// of instructions. Legal values are:
3589 /// ror #n 'n' in {0, 8, 16, 24}
3590 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3591 parseRotImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3592 const AsmToken &Tok = Parser.getTok();
3593 SMLoc S = Tok.getLoc();
3594 if (Tok.isNot(AsmToken::Identifier))
3595 return MatchOperand_NoMatch;
3596 StringRef ShiftName = Tok.getString();
3597 if (ShiftName != "ror" && ShiftName != "ROR")
3598 return MatchOperand_NoMatch;
3599 Parser.Lex(); // Eat the operator.
3601 // A '#' and a rotate amount.
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 *ShiftAmount;
3610 SMLoc E = Parser.getTok().getLoc();
3611 if (getParser().ParseExpression(ShiftAmount)) {
3612 Error(E, "malformed rotate expression");
3613 return MatchOperand_ParseFail;
3615 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
3617 Error(E, "rotate amount must be an immediate");
3618 return MatchOperand_ParseFail;
3621 int64_t Val = CE->getValue();
3622 // Shift amount must be in {0, 8, 16, 24} (0 is undocumented extension)
3623 // normally, zero is represented in asm by omitting the rotate operand
3625 if (Val != 8 && Val != 16 && Val != 24 && Val != 0) {
3626 Error(E, "'ror' rotate amount must be 8, 16, or 24");
3627 return MatchOperand_ParseFail;
3630 E = Parser.getTok().getLoc();
3631 Operands.push_back(ARMOperand::CreateRotImm(Val, S, E));
3633 return MatchOperand_Success;
3636 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3637 parseBitfield(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3638 SMLoc S = Parser.getTok().getLoc();
3639 // The bitfield descriptor is really two operands, the LSB and the width.
3640 if (Parser.getTok().isNot(AsmToken::Hash) &&
3641 Parser.getTok().isNot(AsmToken::Dollar)) {
3642 Error(Parser.getTok().getLoc(), "'#' expected");
3643 return MatchOperand_ParseFail;
3645 Parser.Lex(); // Eat hash token.
3647 const MCExpr *LSBExpr;
3648 SMLoc E = Parser.getTok().getLoc();
3649 if (getParser().ParseExpression(LSBExpr)) {
3650 Error(E, "malformed immediate expression");
3651 return MatchOperand_ParseFail;
3653 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(LSBExpr);
3655 Error(E, "'lsb' operand must be an immediate");
3656 return MatchOperand_ParseFail;
3659 int64_t LSB = CE->getValue();
3660 // The LSB must be in the range [0,31]
3661 if (LSB < 0 || LSB > 31) {
3662 Error(E, "'lsb' operand must be in the range [0,31]");
3663 return MatchOperand_ParseFail;
3665 E = Parser.getTok().getLoc();
3667 // Expect another immediate operand.
3668 if (Parser.getTok().isNot(AsmToken::Comma)) {
3669 Error(Parser.getTok().getLoc(), "too few operands");
3670 return MatchOperand_ParseFail;
3672 Parser.Lex(); // Eat hash token.
3673 if (Parser.getTok().isNot(AsmToken::Hash) &&
3674 Parser.getTok().isNot(AsmToken::Dollar)) {
3675 Error(Parser.getTok().getLoc(), "'#' expected");
3676 return MatchOperand_ParseFail;
3678 Parser.Lex(); // Eat hash token.
3680 const MCExpr *WidthExpr;
3681 if (getParser().ParseExpression(WidthExpr)) {
3682 Error(E, "malformed immediate expression");
3683 return MatchOperand_ParseFail;
3685 CE = dyn_cast<MCConstantExpr>(WidthExpr);
3687 Error(E, "'width' operand must be an immediate");
3688 return MatchOperand_ParseFail;
3691 int64_t Width = CE->getValue();
3692 // The LSB must be in the range [1,32-lsb]
3693 if (Width < 1 || Width > 32 - LSB) {
3694 Error(E, "'width' operand must be in the range [1,32-lsb]");
3695 return MatchOperand_ParseFail;
3697 E = Parser.getTok().getLoc();
3699 Operands.push_back(ARMOperand::CreateBitfield(LSB, Width, S, E));
3701 return MatchOperand_Success;
3704 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3705 parsePostIdxReg(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3706 // Check for a post-index addressing register operand. Specifically:
3707 // postidx_reg := '+' register {, shift}
3708 // | '-' register {, shift}
3709 // | register {, shift}
3711 // This method must return MatchOperand_NoMatch without consuming any tokens
3712 // in the case where there is no match, as other alternatives take other
3714 AsmToken Tok = Parser.getTok();
3715 SMLoc S = Tok.getLoc();
3716 bool haveEaten = false;
3719 if (Tok.is(AsmToken::Plus)) {
3720 Parser.Lex(); // Eat the '+' token.
3722 } else if (Tok.is(AsmToken::Minus)) {
3723 Parser.Lex(); // Eat the '-' token.
3727 if (Parser.getTok().is(AsmToken::Identifier))
3728 Reg = tryParseRegister();
3731 return MatchOperand_NoMatch;
3732 Error(Parser.getTok().getLoc(), "register expected");
3733 return MatchOperand_ParseFail;
3735 SMLoc E = Parser.getTok().getLoc();
3737 ARM_AM::ShiftOpc ShiftTy = ARM_AM::no_shift;
3738 unsigned ShiftImm = 0;
3739 if (Parser.getTok().is(AsmToken::Comma)) {
3740 Parser.Lex(); // Eat the ','.
3741 if (parseMemRegOffsetShift(ShiftTy, ShiftImm))
3742 return MatchOperand_ParseFail;
3745 Operands.push_back(ARMOperand::CreatePostIdxReg(Reg, isAdd, ShiftTy,
3748 return MatchOperand_Success;
3751 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3752 parseAM3Offset(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3753 // Check for a post-index addressing register operand. Specifically:
3754 // am3offset := '+' register
3761 // This method must return MatchOperand_NoMatch without consuming any tokens
3762 // in the case where there is no match, as other alternatives take other
3764 AsmToken Tok = Parser.getTok();
3765 SMLoc S = Tok.getLoc();
3767 // Do immediates first, as we always parse those if we have a '#'.
3768 if (Parser.getTok().is(AsmToken::Hash) ||
3769 Parser.getTok().is(AsmToken::Dollar)) {
3770 Parser.Lex(); // Eat the '#'.
3771 // Explicitly look for a '-', as we need to encode negative zero
3773 bool isNegative = Parser.getTok().is(AsmToken::Minus);
3774 const MCExpr *Offset;
3775 if (getParser().ParseExpression(Offset))
3776 return MatchOperand_ParseFail;
3777 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Offset);
3779 Error(S, "constant expression expected");
3780 return MatchOperand_ParseFail;
3782 SMLoc E = Tok.getLoc();
3783 // Negative zero is encoded as the flag value INT32_MIN.
3784 int32_t Val = CE->getValue();
3785 if (isNegative && Val == 0)
3789 ARMOperand::CreateImm(MCConstantExpr::Create(Val, getContext()), S, E));
3791 return MatchOperand_Success;
3795 bool haveEaten = false;
3798 if (Tok.is(AsmToken::Plus)) {
3799 Parser.Lex(); // Eat the '+' token.
3801 } else if (Tok.is(AsmToken::Minus)) {
3802 Parser.Lex(); // Eat the '-' token.
3806 if (Parser.getTok().is(AsmToken::Identifier))
3807 Reg = tryParseRegister();
3810 return MatchOperand_NoMatch;
3811 Error(Parser.getTok().getLoc(), "register expected");
3812 return MatchOperand_ParseFail;
3814 SMLoc E = Parser.getTok().getLoc();
3816 Operands.push_back(ARMOperand::CreatePostIdxReg(Reg, isAdd, ARM_AM::no_shift,
3819 return MatchOperand_Success;
3822 /// cvtT2LdrdPre - Convert parsed operands to MCInst.
3823 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3824 /// when they refer multiple MIOperands inside a single one.
3826 cvtT2LdrdPre(MCInst &Inst, unsigned Opcode,
3827 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3829 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3830 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
3831 // Create a writeback register dummy placeholder.
3832 Inst.addOperand(MCOperand::CreateReg(0));
3834 ((ARMOperand*)Operands[4])->addMemImm8s4OffsetOperands(Inst, 2);
3836 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3840 /// cvtT2StrdPre - Convert parsed operands to MCInst.
3841 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3842 /// when they refer multiple MIOperands inside a single one.
3844 cvtT2StrdPre(MCInst &Inst, unsigned Opcode,
3845 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3846 // Create a writeback register dummy placeholder.
3847 Inst.addOperand(MCOperand::CreateReg(0));
3849 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3850 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
3852 ((ARMOperand*)Operands[4])->addMemImm8s4OffsetOperands(Inst, 2);
3854 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3858 /// cvtLdWriteBackRegT2AddrModeImm8 - Convert parsed operands to MCInst.
3859 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3860 /// when they refer multiple MIOperands inside a single one.
3862 cvtLdWriteBackRegT2AddrModeImm8(MCInst &Inst, unsigned Opcode,
3863 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3864 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3866 // Create a writeback register dummy placeholder.
3867 Inst.addOperand(MCOperand::CreateImm(0));
3869 ((ARMOperand*)Operands[3])->addMemImm8OffsetOperands(Inst, 2);
3870 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3874 /// cvtStWriteBackRegT2AddrModeImm8 - Convert parsed operands to MCInst.
3875 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3876 /// when they refer multiple MIOperands inside a single one.
3878 cvtStWriteBackRegT2AddrModeImm8(MCInst &Inst, unsigned Opcode,
3879 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3880 // Create a writeback register dummy placeholder.
3881 Inst.addOperand(MCOperand::CreateImm(0));
3882 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3883 ((ARMOperand*)Operands[3])->addMemImm8OffsetOperands(Inst, 2);
3884 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3888 /// cvtLdWriteBackRegAddrMode2 - Convert parsed operands to MCInst.
3889 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3890 /// when they refer multiple MIOperands inside a single one.
3892 cvtLdWriteBackRegAddrMode2(MCInst &Inst, unsigned Opcode,
3893 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3894 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3896 // Create a writeback register dummy placeholder.
3897 Inst.addOperand(MCOperand::CreateImm(0));
3899 ((ARMOperand*)Operands[3])->addAddrMode2Operands(Inst, 3);
3900 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3904 /// cvtLdWriteBackRegAddrModeImm12 - Convert parsed operands to MCInst.
3905 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3906 /// when they refer multiple MIOperands inside a single one.
3908 cvtLdWriteBackRegAddrModeImm12(MCInst &Inst, unsigned Opcode,
3909 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3910 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3912 // Create a writeback register dummy placeholder.
3913 Inst.addOperand(MCOperand::CreateImm(0));
3915 ((ARMOperand*)Operands[3])->addMemImm12OffsetOperands(Inst, 2);
3916 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3921 /// cvtStWriteBackRegAddrModeImm12 - Convert parsed operands to MCInst.
3922 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3923 /// when they refer multiple MIOperands inside a single one.
3925 cvtStWriteBackRegAddrModeImm12(MCInst &Inst, unsigned Opcode,
3926 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3927 // Create a writeback register dummy placeholder.
3928 Inst.addOperand(MCOperand::CreateImm(0));
3929 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3930 ((ARMOperand*)Operands[3])->addMemImm12OffsetOperands(Inst, 2);
3931 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3935 /// cvtStWriteBackRegAddrMode2 - Convert parsed operands to MCInst.
3936 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3937 /// when they refer multiple MIOperands inside a single one.
3939 cvtStWriteBackRegAddrMode2(MCInst &Inst, unsigned Opcode,
3940 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3941 // Create a writeback register dummy placeholder.
3942 Inst.addOperand(MCOperand::CreateImm(0));
3943 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3944 ((ARMOperand*)Operands[3])->addAddrMode2Operands(Inst, 3);
3945 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3949 /// cvtStWriteBackRegAddrMode3 - Convert parsed operands to MCInst.
3950 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3951 /// when they refer multiple MIOperands inside a single one.
3953 cvtStWriteBackRegAddrMode3(MCInst &Inst, unsigned Opcode,
3954 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3955 // Create a writeback register dummy placeholder.
3956 Inst.addOperand(MCOperand::CreateImm(0));
3957 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3958 ((ARMOperand*)Operands[3])->addAddrMode3Operands(Inst, 3);
3959 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3963 /// cvtLdExtTWriteBackImm - 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 cvtLdExtTWriteBackImm(MCInst &Inst, unsigned Opcode,
3968 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3970 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3971 // Create a writeback register dummy placeholder.
3972 Inst.addOperand(MCOperand::CreateImm(0));
3974 ((ARMOperand*)Operands[3])->addMemNoOffsetOperands(Inst, 1);
3976 ((ARMOperand*)Operands[4])->addPostIdxImm8Operands(Inst, 1);
3978 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3982 /// cvtLdExtTWriteBackReg - 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 cvtLdExtTWriteBackReg(MCInst &Inst, unsigned Opcode,
3987 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3989 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3990 // Create a writeback register dummy placeholder.
3991 Inst.addOperand(MCOperand::CreateImm(0));
3993 ((ARMOperand*)Operands[3])->addMemNoOffsetOperands(Inst, 1);
3995 ((ARMOperand*)Operands[4])->addPostIdxRegOperands(Inst, 2);
3997 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4001 /// cvtStExtTWriteBackImm - 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 cvtStExtTWriteBackImm(MCInst &Inst, unsigned Opcode,
4006 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4007 // Create a writeback register dummy placeholder.
4008 Inst.addOperand(MCOperand::CreateImm(0));
4010 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4012 ((ARMOperand*)Operands[3])->addMemNoOffsetOperands(Inst, 1);
4014 ((ARMOperand*)Operands[4])->addPostIdxImm8Operands(Inst, 1);
4016 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4020 /// cvtStExtTWriteBackReg - Convert parsed operands to MCInst.
4021 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4022 /// when they refer multiple MIOperands inside a single one.
4024 cvtStExtTWriteBackReg(MCInst &Inst, unsigned Opcode,
4025 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4026 // Create a writeback register dummy placeholder.
4027 Inst.addOperand(MCOperand::CreateImm(0));
4029 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4031 ((ARMOperand*)Operands[3])->addMemNoOffsetOperands(Inst, 1);
4033 ((ARMOperand*)Operands[4])->addPostIdxRegOperands(Inst, 2);
4035 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4039 /// cvtLdrdPre - Convert parsed operands to MCInst.
4040 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4041 /// when they refer multiple MIOperands inside a single one.
4043 cvtLdrdPre(MCInst &Inst, unsigned Opcode,
4044 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4046 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4047 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
4048 // Create a writeback register dummy placeholder.
4049 Inst.addOperand(MCOperand::CreateImm(0));
4051 ((ARMOperand*)Operands[4])->addAddrMode3Operands(Inst, 3);
4053 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4057 /// cvtStrdPre - Convert parsed operands to MCInst.
4058 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4059 /// when they refer multiple MIOperands inside a single one.
4061 cvtStrdPre(MCInst &Inst, unsigned Opcode,
4062 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4063 // Create a writeback register dummy placeholder.
4064 Inst.addOperand(MCOperand::CreateImm(0));
4066 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4067 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
4069 ((ARMOperand*)Operands[4])->addAddrMode3Operands(Inst, 3);
4071 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4075 /// cvtLdWriteBackRegAddrMode3 - Convert parsed operands to MCInst.
4076 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4077 /// when they refer multiple MIOperands inside a single one.
4079 cvtLdWriteBackRegAddrMode3(MCInst &Inst, unsigned Opcode,
4080 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4081 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4082 // Create a writeback register dummy placeholder.
4083 Inst.addOperand(MCOperand::CreateImm(0));
4084 ((ARMOperand*)Operands[3])->addAddrMode3Operands(Inst, 3);
4085 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4089 /// cvtThumbMultiple- Convert parsed operands to MCInst.
4090 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4091 /// when they refer multiple MIOperands inside a single one.
4093 cvtThumbMultiply(MCInst &Inst, unsigned Opcode,
4094 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4095 // The second source operand must be the same register as the destination
4097 if (Operands.size() == 6 &&
4098 (((ARMOperand*)Operands[3])->getReg() !=
4099 ((ARMOperand*)Operands[5])->getReg()) &&
4100 (((ARMOperand*)Operands[3])->getReg() !=
4101 ((ARMOperand*)Operands[4])->getReg())) {
4102 Error(Operands[3]->getStartLoc(),
4103 "destination register must match source register");
4106 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
4107 ((ARMOperand*)Operands[1])->addCCOutOperands(Inst, 1);
4108 // If we have a three-operand form, make sure to set Rn to be the operand
4109 // that isn't the same as Rd.
4111 if (Operands.size() == 6 &&
4112 ((ARMOperand*)Operands[4])->getReg() ==
4113 ((ARMOperand*)Operands[3])->getReg())
4115 ((ARMOperand*)Operands[RegOp])->addRegOperands(Inst, 1);
4116 Inst.addOperand(Inst.getOperand(0));
4117 ((ARMOperand*)Operands[2])->addCondCodeOperands(Inst, 2);
4123 cvtVLDwbFixed(MCInst &Inst, unsigned Opcode,
4124 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4126 ((ARMOperand*)Operands[3])->addVecListOperands(Inst, 1);
4127 // Create a writeback register dummy placeholder.
4128 Inst.addOperand(MCOperand::CreateImm(0));
4130 ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
4132 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4137 cvtVLDwbRegister(MCInst &Inst, unsigned Opcode,
4138 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4140 ((ARMOperand*)Operands[3])->addVecListOperands(Inst, 1);
4141 // Create a writeback register dummy placeholder.
4142 Inst.addOperand(MCOperand::CreateImm(0));
4144 ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
4146 ((ARMOperand*)Operands[5])->addRegOperands(Inst, 1);
4148 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4153 cvtVSTwbFixed(MCInst &Inst, unsigned Opcode,
4154 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4155 // Create a writeback register dummy placeholder.
4156 Inst.addOperand(MCOperand::CreateImm(0));
4158 ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
4160 ((ARMOperand*)Operands[3])->addVecListOperands(Inst, 1);
4162 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4167 cvtVSTwbRegister(MCInst &Inst, unsigned Opcode,
4168 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4169 // Create a writeback register dummy placeholder.
4170 Inst.addOperand(MCOperand::CreateImm(0));
4172 ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
4174 ((ARMOperand*)Operands[5])->addRegOperands(Inst, 1);
4176 ((ARMOperand*)Operands[3])->addVecListOperands(Inst, 1);
4178 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4182 /// Parse an ARM memory expression, return false if successful else return true
4183 /// or an error. The first token must be a '[' when called.
4185 parseMemory(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4187 assert(Parser.getTok().is(AsmToken::LBrac) &&
4188 "Token is not a Left Bracket");
4189 S = Parser.getTok().getLoc();
4190 Parser.Lex(); // Eat left bracket token.
4192 const AsmToken &BaseRegTok = Parser.getTok();
4193 int BaseRegNum = tryParseRegister();
4194 if (BaseRegNum == -1)
4195 return Error(BaseRegTok.getLoc(), "register expected");
4197 // The next token must either be a comma or a closing bracket.
4198 const AsmToken &Tok = Parser.getTok();
4199 if (!Tok.is(AsmToken::Comma) && !Tok.is(AsmToken::RBrac))
4200 return Error(Tok.getLoc(), "malformed memory operand");
4202 if (Tok.is(AsmToken::RBrac)) {
4204 Parser.Lex(); // Eat right bracket token.
4206 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, 0, ARM_AM::no_shift,
4207 0, 0, false, S, E));
4209 // If there's a pre-indexing writeback marker, '!', just add it as a token
4210 // operand. It's rather odd, but syntactically valid.
4211 if (Parser.getTok().is(AsmToken::Exclaim)) {
4212 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4213 Parser.Lex(); // Eat the '!'.
4219 assert(Tok.is(AsmToken::Comma) && "Lost comma in memory operand?!");
4220 Parser.Lex(); // Eat the comma.
4222 // If we have a ':', it's an alignment specifier.
4223 if (Parser.getTok().is(AsmToken::Colon)) {
4224 Parser.Lex(); // Eat the ':'.
4225 E = Parser.getTok().getLoc();
4228 if (getParser().ParseExpression(Expr))
4231 // The expression has to be a constant. Memory references with relocations
4232 // don't come through here, as they use the <label> forms of the relevant
4234 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
4236 return Error (E, "constant expression expected");
4239 switch (CE->getValue()) {
4242 "alignment specifier must be 16, 32, 64, 128, or 256 bits");
4243 case 16: Align = 2; break;
4244 case 32: Align = 4; break;
4245 case 64: Align = 8; break;
4246 case 128: Align = 16; break;
4247 case 256: Align = 32; break;
4250 // Now we should have the closing ']'
4251 E = Parser.getTok().getLoc();
4252 if (Parser.getTok().isNot(AsmToken::RBrac))
4253 return Error(E, "']' expected");
4254 Parser.Lex(); // Eat right bracket token.
4256 // Don't worry about range checking the value here. That's handled by
4257 // the is*() predicates.
4258 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, 0,
4259 ARM_AM::no_shift, 0, Align,
4262 // If there's a pre-indexing writeback marker, '!', just add it as a token
4264 if (Parser.getTok().is(AsmToken::Exclaim)) {
4265 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4266 Parser.Lex(); // Eat the '!'.
4272 // If we have a '#', it's an immediate offset, else assume it's a register
4273 // offset. Be friendly and also accept a plain integer (without a leading
4274 // hash) for gas compatibility.
4275 if (Parser.getTok().is(AsmToken::Hash) ||
4276 Parser.getTok().is(AsmToken::Dollar) ||
4277 Parser.getTok().is(AsmToken::Integer)) {
4278 if (Parser.getTok().isNot(AsmToken::Integer))
4279 Parser.Lex(); // Eat the '#'.
4280 E = Parser.getTok().getLoc();
4282 bool isNegative = getParser().getTok().is(AsmToken::Minus);
4283 const MCExpr *Offset;
4284 if (getParser().ParseExpression(Offset))
4287 // The expression has to be a constant. Memory references with relocations
4288 // don't come through here, as they use the <label> forms of the relevant
4290 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Offset);
4292 return Error (E, "constant expression expected");
4294 // If the constant was #-0, represent it as INT32_MIN.
4295 int32_t Val = CE->getValue();
4296 if (isNegative && Val == 0)
4297 CE = MCConstantExpr::Create(INT32_MIN, getContext());
4299 // Now we should have the closing ']'
4300 E = Parser.getTok().getLoc();
4301 if (Parser.getTok().isNot(AsmToken::RBrac))
4302 return Error(E, "']' expected");
4303 Parser.Lex(); // Eat right bracket token.
4305 // Don't worry about range checking the value here. That's handled by
4306 // the is*() predicates.
4307 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, CE, 0,
4308 ARM_AM::no_shift, 0, 0,
4311 // If there's a pre-indexing writeback marker, '!', just add it as a token
4313 if (Parser.getTok().is(AsmToken::Exclaim)) {
4314 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4315 Parser.Lex(); // Eat the '!'.
4321 // The register offset is optionally preceded by a '+' or '-'
4322 bool isNegative = false;
4323 if (Parser.getTok().is(AsmToken::Minus)) {
4325 Parser.Lex(); // Eat the '-'.
4326 } else if (Parser.getTok().is(AsmToken::Plus)) {
4328 Parser.Lex(); // Eat the '+'.
4331 E = Parser.getTok().getLoc();
4332 int OffsetRegNum = tryParseRegister();
4333 if (OffsetRegNum == -1)
4334 return Error(E, "register expected");
4336 // If there's a shift operator, handle it.
4337 ARM_AM::ShiftOpc ShiftType = ARM_AM::no_shift;
4338 unsigned ShiftImm = 0;
4339 if (Parser.getTok().is(AsmToken::Comma)) {
4340 Parser.Lex(); // Eat the ','.
4341 if (parseMemRegOffsetShift(ShiftType, ShiftImm))
4345 // Now we should have the closing ']'
4346 E = Parser.getTok().getLoc();
4347 if (Parser.getTok().isNot(AsmToken::RBrac))
4348 return Error(E, "']' expected");
4349 Parser.Lex(); // Eat right bracket token.
4351 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, OffsetRegNum,
4352 ShiftType, ShiftImm, 0, isNegative,
4355 // If there's a pre-indexing writeback marker, '!', just add it as a token
4357 if (Parser.getTok().is(AsmToken::Exclaim)) {
4358 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4359 Parser.Lex(); // Eat the '!'.
4365 /// parseMemRegOffsetShift - one of these two:
4366 /// ( lsl | lsr | asr | ror ) , # shift_amount
4368 /// return true if it parses a shift otherwise it returns false.
4369 bool ARMAsmParser::parseMemRegOffsetShift(ARM_AM::ShiftOpc &St,
4371 SMLoc Loc = Parser.getTok().getLoc();
4372 const AsmToken &Tok = Parser.getTok();
4373 if (Tok.isNot(AsmToken::Identifier))
4375 StringRef ShiftName = Tok.getString();
4376 if (ShiftName == "lsl" || ShiftName == "LSL" ||
4377 ShiftName == "asl" || ShiftName == "ASL")
4379 else if (ShiftName == "lsr" || ShiftName == "LSR")
4381 else if (ShiftName == "asr" || ShiftName == "ASR")
4383 else if (ShiftName == "ror" || ShiftName == "ROR")
4385 else if (ShiftName == "rrx" || ShiftName == "RRX")
4388 return Error(Loc, "illegal shift operator");
4389 Parser.Lex(); // Eat shift type token.
4391 // rrx stands alone.
4393 if (St != ARM_AM::rrx) {
4394 Loc = Parser.getTok().getLoc();
4395 // A '#' and a shift amount.
4396 const AsmToken &HashTok = Parser.getTok();
4397 if (HashTok.isNot(AsmToken::Hash) &&
4398 HashTok.isNot(AsmToken::Dollar))
4399 return Error(HashTok.getLoc(), "'#' expected");
4400 Parser.Lex(); // Eat hash token.
4403 if (getParser().ParseExpression(Expr))
4405 // Range check the immediate.
4406 // lsl, ror: 0 <= imm <= 31
4407 // lsr, asr: 0 <= imm <= 32
4408 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
4410 return Error(Loc, "shift amount must be an immediate");
4411 int64_t Imm = CE->getValue();
4413 ((St == ARM_AM::lsl || St == ARM_AM::ror) && Imm > 31) ||
4414 ((St == ARM_AM::lsr || St == ARM_AM::asr) && Imm > 32))
4415 return Error(Loc, "immediate shift value out of range");
4422 /// parseFPImm - A floating point immediate expression operand.
4423 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4424 parseFPImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4425 // Anything that can accept a floating point constant as an operand
4426 // needs to go through here, as the regular ParseExpression is
4429 // This routine still creates a generic Immediate operand, containing
4430 // a bitcast of the 64-bit floating point value. The various operands
4431 // that accept floats can check whether the value is valid for them
4432 // via the standard is*() predicates.
4434 SMLoc S = Parser.getTok().getLoc();
4436 if (Parser.getTok().isNot(AsmToken::Hash) &&
4437 Parser.getTok().isNot(AsmToken::Dollar))
4438 return MatchOperand_NoMatch;
4440 // Disambiguate the VMOV forms that can accept an FP immediate.
4441 // vmov.f32 <sreg>, #imm
4442 // vmov.f64 <dreg>, #imm
4443 // vmov.f32 <dreg>, #imm @ vector f32x2
4444 // vmov.f32 <qreg>, #imm @ vector f32x4
4446 // There are also the NEON VMOV instructions which expect an
4447 // integer constant. Make sure we don't try to parse an FPImm
4449 // vmov.i{8|16|32|64} <dreg|qreg>, #imm
4450 ARMOperand *TyOp = static_cast<ARMOperand*>(Operands[2]);
4451 if (!TyOp->isToken() || (TyOp->getToken() != ".f32" &&
4452 TyOp->getToken() != ".f64"))
4453 return MatchOperand_NoMatch;
4455 Parser.Lex(); // Eat the '#'.
4457 // Handle negation, as that still comes through as a separate token.
4458 bool isNegative = false;
4459 if (Parser.getTok().is(AsmToken::Minus)) {
4463 const AsmToken &Tok = Parser.getTok();
4464 SMLoc Loc = Tok.getLoc();
4465 if (Tok.is(AsmToken::Real)) {
4466 APFloat RealVal(APFloat::IEEEsingle, Tok.getString());
4467 uint64_t IntVal = RealVal.bitcastToAPInt().getZExtValue();
4468 // If we had a '-' in front, toggle the sign bit.
4469 IntVal ^= (uint64_t)isNegative << 31;
4470 Parser.Lex(); // Eat the token.
4471 Operands.push_back(ARMOperand::CreateImm(
4472 MCConstantExpr::Create(IntVal, getContext()),
4473 S, Parser.getTok().getLoc()));
4474 return MatchOperand_Success;
4476 // Also handle plain integers. Instructions which allow floating point
4477 // immediates also allow a raw encoded 8-bit value.
4478 if (Tok.is(AsmToken::Integer)) {
4479 int64_t Val = Tok.getIntVal();
4480 Parser.Lex(); // Eat the token.
4481 if (Val > 255 || Val < 0) {
4482 Error(Loc, "encoded floating point value out of range");
4483 return MatchOperand_ParseFail;
4485 double RealVal = ARM_AM::getFPImmFloat(Val);
4486 Val = APFloat(APFloat::IEEEdouble, RealVal).bitcastToAPInt().getZExtValue();
4487 Operands.push_back(ARMOperand::CreateImm(
4488 MCConstantExpr::Create(Val, getContext()), S,
4489 Parser.getTok().getLoc()));
4490 return MatchOperand_Success;
4493 Error(Loc, "invalid floating point immediate");
4494 return MatchOperand_ParseFail;
4497 /// Parse a arm instruction operand. For now this parses the operand regardless
4498 /// of the mnemonic.
4499 bool ARMAsmParser::parseOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands,
4500 StringRef Mnemonic) {
4503 // Check if the current operand has a custom associated parser, if so, try to
4504 // custom parse the operand, or fallback to the general approach.
4505 OperandMatchResultTy ResTy = MatchOperandParserImpl(Operands, Mnemonic);
4506 if (ResTy == MatchOperand_Success)
4508 // If there wasn't a custom match, try the generic matcher below. Otherwise,
4509 // there was a match, but an error occurred, in which case, just return that
4510 // the operand parsing failed.
4511 if (ResTy == MatchOperand_ParseFail)
4514 switch (getLexer().getKind()) {
4516 Error(Parser.getTok().getLoc(), "unexpected token in operand");
4518 case AsmToken::Identifier: {
4519 if (!tryParseRegisterWithWriteBack(Operands))
4521 int Res = tryParseShiftRegister(Operands);
4522 if (Res == 0) // success
4524 else if (Res == -1) // irrecoverable error
4526 // If this is VMRS, check for the apsr_nzcv operand.
4527 if (Mnemonic == "vmrs" &&
4528 Parser.getTok().getString().equals_lower("apsr_nzcv")) {
4529 S = Parser.getTok().getLoc();
4531 Operands.push_back(ARMOperand::CreateToken("APSR_nzcv", S));
4535 // Fall though for the Identifier case that is not a register or a
4538 case AsmToken::LParen: // parenthesized expressions like (_strcmp-4)
4539 case AsmToken::Integer: // things like 1f and 2b as a branch targets
4540 case AsmToken::String: // quoted label names.
4541 case AsmToken::Dot: { // . as a branch target
4542 // This was not a register so parse other operands that start with an
4543 // identifier (like labels) as expressions and create them as immediates.
4544 const MCExpr *IdVal;
4545 S = Parser.getTok().getLoc();
4546 if (getParser().ParseExpression(IdVal))
4548 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4549 Operands.push_back(ARMOperand::CreateImm(IdVal, S, E));
4552 case AsmToken::LBrac:
4553 return parseMemory(Operands);
4554 case AsmToken::LCurly:
4555 return parseRegisterList(Operands);
4556 case AsmToken::Dollar:
4557 case AsmToken::Hash: {
4558 // #42 -> immediate.
4559 S = Parser.getTok().getLoc();
4562 if (Parser.getTok().isNot(AsmToken::Colon)) {
4563 bool isNegative = Parser.getTok().is(AsmToken::Minus);
4564 const MCExpr *ImmVal;
4565 if (getParser().ParseExpression(ImmVal))
4567 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ImmVal);
4569 int32_t Val = CE->getValue();
4570 if (isNegative && Val == 0)
4571 ImmVal = MCConstantExpr::Create(INT32_MIN, getContext());
4573 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4574 Operands.push_back(ARMOperand::CreateImm(ImmVal, S, E));
4577 // w/ a ':' after the '#', it's just like a plain ':'.
4580 case AsmToken::Colon: {
4581 // ":lower16:" and ":upper16:" expression prefixes
4582 // FIXME: Check it's an expression prefix,
4583 // e.g. (FOO - :lower16:BAR) isn't legal.
4584 ARMMCExpr::VariantKind RefKind;
4585 if (parsePrefix(RefKind))
4588 const MCExpr *SubExprVal;
4589 if (getParser().ParseExpression(SubExprVal))
4592 const MCExpr *ExprVal = ARMMCExpr::Create(RefKind, SubExprVal,
4594 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4595 Operands.push_back(ARMOperand::CreateImm(ExprVal, S, E));
4601 // parsePrefix - Parse ARM 16-bit relocations expression prefix, i.e.
4602 // :lower16: and :upper16:.
4603 bool ARMAsmParser::parsePrefix(ARMMCExpr::VariantKind &RefKind) {
4604 RefKind = ARMMCExpr::VK_ARM_None;
4606 // :lower16: and :upper16: modifiers
4607 assert(getLexer().is(AsmToken::Colon) && "expected a :");
4608 Parser.Lex(); // Eat ':'
4610 if (getLexer().isNot(AsmToken::Identifier)) {
4611 Error(Parser.getTok().getLoc(), "expected prefix identifier in operand");
4615 StringRef IDVal = Parser.getTok().getIdentifier();
4616 if (IDVal == "lower16") {
4617 RefKind = ARMMCExpr::VK_ARM_LO16;
4618 } else if (IDVal == "upper16") {
4619 RefKind = ARMMCExpr::VK_ARM_HI16;
4621 Error(Parser.getTok().getLoc(), "unexpected prefix in operand");
4626 if (getLexer().isNot(AsmToken::Colon)) {
4627 Error(Parser.getTok().getLoc(), "unexpected token after prefix");
4630 Parser.Lex(); // Eat the last ':'
4634 /// \brief Given a mnemonic, split out possible predication code and carry
4635 /// setting letters to form a canonical mnemonic and flags.
4637 // FIXME: Would be nice to autogen this.
4638 // FIXME: This is a bit of a maze of special cases.
4639 StringRef ARMAsmParser::splitMnemonic(StringRef Mnemonic,
4640 unsigned &PredicationCode,
4642 unsigned &ProcessorIMod,
4643 StringRef &ITMask) {
4644 PredicationCode = ARMCC::AL;
4645 CarrySetting = false;
4648 // Ignore some mnemonics we know aren't predicated forms.
4650 // FIXME: Would be nice to autogen this.
4651 if ((Mnemonic == "movs" && isThumb()) ||
4652 Mnemonic == "teq" || Mnemonic == "vceq" || Mnemonic == "svc" ||
4653 Mnemonic == "mls" || Mnemonic == "smmls" || Mnemonic == "vcls" ||
4654 Mnemonic == "vmls" || Mnemonic == "vnmls" || Mnemonic == "vacge" ||
4655 Mnemonic == "vcge" || Mnemonic == "vclt" || Mnemonic == "vacgt" ||
4656 Mnemonic == "vcgt" || Mnemonic == "vcle" || Mnemonic == "smlal" ||
4657 Mnemonic == "umaal" || Mnemonic == "umlal" || Mnemonic == "vabal" ||
4658 Mnemonic == "vmlal" || Mnemonic == "vpadal" || Mnemonic == "vqdmlal" ||
4659 Mnemonic == "fmuls")
4662 // First, split out any predication code. Ignore mnemonics we know aren't
4663 // predicated but do have a carry-set and so weren't caught above.
4664 if (Mnemonic != "adcs" && Mnemonic != "bics" && Mnemonic != "movs" &&
4665 Mnemonic != "muls" && Mnemonic != "smlals" && Mnemonic != "smulls" &&
4666 Mnemonic != "umlals" && Mnemonic != "umulls" && Mnemonic != "lsls" &&
4667 Mnemonic != "sbcs" && Mnemonic != "rscs") {
4668 unsigned CC = StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2))
4669 .Case("eq", ARMCC::EQ)
4670 .Case("ne", ARMCC::NE)
4671 .Case("hs", ARMCC::HS)
4672 .Case("cs", ARMCC::HS)
4673 .Case("lo", ARMCC::LO)
4674 .Case("cc", ARMCC::LO)
4675 .Case("mi", ARMCC::MI)
4676 .Case("pl", ARMCC::PL)
4677 .Case("vs", ARMCC::VS)
4678 .Case("vc", ARMCC::VC)
4679 .Case("hi", ARMCC::HI)
4680 .Case("ls", ARMCC::LS)
4681 .Case("ge", ARMCC::GE)
4682 .Case("lt", ARMCC::LT)
4683 .Case("gt", ARMCC::GT)
4684 .Case("le", ARMCC::LE)
4685 .Case("al", ARMCC::AL)
4688 Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 2);
4689 PredicationCode = CC;
4693 // Next, determine if we have a carry setting bit. We explicitly ignore all
4694 // the instructions we know end in 's'.
4695 if (Mnemonic.endswith("s") &&
4696 !(Mnemonic == "cps" || Mnemonic == "mls" ||
4697 Mnemonic == "mrs" || Mnemonic == "smmls" || Mnemonic == "vabs" ||
4698 Mnemonic == "vcls" || Mnemonic == "vmls" || Mnemonic == "vmrs" ||
4699 Mnemonic == "vnmls" || Mnemonic == "vqabs" || Mnemonic == "vrecps" ||
4700 Mnemonic == "vrsqrts" || Mnemonic == "srs" || Mnemonic == "flds" ||
4701 Mnemonic == "fmrs" || Mnemonic == "fsqrts" || Mnemonic == "fsubs" ||
4702 Mnemonic == "fsts" || Mnemonic == "fcpys" || Mnemonic == "fdivs" ||
4703 Mnemonic == "fmuls" || Mnemonic == "fcmps" || Mnemonic == "fcmpzs" ||
4704 Mnemonic == "vfms" || Mnemonic == "vfnms" ||
4705 (Mnemonic == "movs" && isThumb()))) {
4706 Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 1);
4707 CarrySetting = true;
4710 // The "cps" instruction can have a interrupt mode operand which is glued into
4711 // the mnemonic. Check if this is the case, split it and parse the imod op
4712 if (Mnemonic.startswith("cps")) {
4713 // Split out any imod code.
4715 StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2, 2))
4716 .Case("ie", ARM_PROC::IE)
4717 .Case("id", ARM_PROC::ID)
4720 Mnemonic = Mnemonic.slice(0, Mnemonic.size()-2);
4721 ProcessorIMod = IMod;
4725 // The "it" instruction has the condition mask on the end of the mnemonic.
4726 if (Mnemonic.startswith("it")) {
4727 ITMask = Mnemonic.slice(2, Mnemonic.size());
4728 Mnemonic = Mnemonic.slice(0, 2);
4734 /// \brief Given a canonical mnemonic, determine if the instruction ever allows
4735 /// inclusion of carry set or predication code operands.
4737 // FIXME: It would be nice to autogen this.
4739 getMnemonicAcceptInfo(StringRef Mnemonic, bool &CanAcceptCarrySet,
4740 bool &CanAcceptPredicationCode) {
4741 if (Mnemonic == "and" || Mnemonic == "lsl" || Mnemonic == "lsr" ||
4742 Mnemonic == "rrx" || Mnemonic == "ror" || Mnemonic == "sub" ||
4743 Mnemonic == "add" || Mnemonic == "adc" ||
4744 Mnemonic == "mul" || Mnemonic == "bic" || Mnemonic == "asr" ||
4745 Mnemonic == "orr" || Mnemonic == "mvn" ||
4746 Mnemonic == "rsb" || Mnemonic == "rsc" || Mnemonic == "orn" ||
4747 Mnemonic == "sbc" || Mnemonic == "eor" || Mnemonic == "neg" ||
4748 Mnemonic == "vfm" || Mnemonic == "vfnm" ||
4749 (!isThumb() && (Mnemonic == "smull" || Mnemonic == "mov" ||
4750 Mnemonic == "mla" || Mnemonic == "smlal" ||
4751 Mnemonic == "umlal" || Mnemonic == "umull"))) {
4752 CanAcceptCarrySet = true;
4754 CanAcceptCarrySet = false;
4756 if (Mnemonic == "cbnz" || Mnemonic == "setend" || Mnemonic == "dmb" ||
4757 Mnemonic == "cps" || Mnemonic == "mcr2" || Mnemonic == "it" ||
4758 Mnemonic == "mcrr2" || Mnemonic == "cbz" || Mnemonic == "cdp2" ||
4759 Mnemonic == "trap" || Mnemonic == "mrc2" || Mnemonic == "mrrc2" ||
4760 Mnemonic == "dsb" || Mnemonic == "isb" || Mnemonic == "setend" ||
4761 (Mnemonic == "clrex" && !isThumb()) ||
4762 (Mnemonic == "nop" && isThumbOne()) ||
4763 ((Mnemonic == "pld" || Mnemonic == "pli" || Mnemonic == "pldw" ||
4764 Mnemonic == "ldc2" || Mnemonic == "ldc2l" ||
4765 Mnemonic == "stc2" || Mnemonic == "stc2l") && !isThumb()) ||
4766 ((Mnemonic.startswith("rfe") || Mnemonic.startswith("srs")) &&
4768 Mnemonic.startswith("cps") || (Mnemonic == "movs" && isThumbOne())) {
4769 CanAcceptPredicationCode = false;
4771 CanAcceptPredicationCode = true;
4774 if (Mnemonic == "bkpt" || Mnemonic == "mcr" || Mnemonic == "mcrr" ||
4775 Mnemonic == "mrc" || Mnemonic == "mrrc" || Mnemonic == "cdp")
4776 CanAcceptPredicationCode = false;
4780 bool ARMAsmParser::shouldOmitCCOutOperand(StringRef Mnemonic,
4781 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4782 // FIXME: This is all horribly hacky. We really need a better way to deal
4783 // with optional operands like this in the matcher table.
4785 // The 'mov' mnemonic is special. One variant has a cc_out operand, while
4786 // another does not. Specifically, the MOVW instruction does not. So we
4787 // special case it here and remove the defaulted (non-setting) cc_out
4788 // operand if that's the instruction we're trying to match.
4790 // We do this as post-processing of the explicit operands rather than just
4791 // conditionally adding the cc_out in the first place because we need
4792 // to check the type of the parsed immediate operand.
4793 if (Mnemonic == "mov" && Operands.size() > 4 && !isThumb() &&
4794 !static_cast<ARMOperand*>(Operands[4])->isARMSOImm() &&
4795 static_cast<ARMOperand*>(Operands[4])->isImm0_65535Expr() &&
4796 static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
4799 // Register-register 'add' for thumb does not have a cc_out operand
4800 // when there are only two register operands.
4801 if (isThumb() && Mnemonic == "add" && Operands.size() == 5 &&
4802 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4803 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4804 static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
4806 // Register-register 'add' for thumb does not have a cc_out operand
4807 // when it's an ADD Rdm, SP, {Rdm|#imm0_255} instruction. We do
4808 // have to check the immediate range here since Thumb2 has a variant
4809 // that can handle a different range and has a cc_out operand.
4810 if (((isThumb() && Mnemonic == "add") ||
4811 (isThumbTwo() && Mnemonic == "sub")) &&
4812 Operands.size() == 6 &&
4813 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4814 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4815 static_cast<ARMOperand*>(Operands[4])->getReg() == ARM::SP &&
4816 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
4817 ((Mnemonic == "add" &&static_cast<ARMOperand*>(Operands[5])->isReg()) ||
4818 static_cast<ARMOperand*>(Operands[5])->isImm0_1020s4()))
4820 // For Thumb2, add/sub immediate does not have a cc_out operand for the
4821 // imm0_4095 variant. That's the least-preferred variant when
4822 // selecting via the generic "add" mnemonic, so to know that we
4823 // should remove the cc_out operand, we have to explicitly check that
4824 // it's not one of the other variants. Ugh.
4825 if (isThumbTwo() && (Mnemonic == "add" || Mnemonic == "sub") &&
4826 Operands.size() == 6 &&
4827 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4828 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4829 static_cast<ARMOperand*>(Operands[5])->isImm()) {
4830 // Nest conditions rather than one big 'if' statement for readability.
4832 // If either register is a high reg, it's either one of the SP
4833 // variants (handled above) or a 32-bit encoding, so we just
4834 // check against T3. If the second register is the PC, this is an
4835 // alternate form of ADR, which uses encoding T4, so check for that too.
4836 if ((!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
4837 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg())) &&
4838 static_cast<ARMOperand*>(Operands[4])->getReg() != ARM::PC &&
4839 static_cast<ARMOperand*>(Operands[5])->isT2SOImm())
4841 // If both registers are low, we're in an IT block, and the immediate is
4842 // in range, we should use encoding T1 instead, which has a cc_out.
4844 isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) &&
4845 isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) &&
4846 static_cast<ARMOperand*>(Operands[5])->isImm0_7())
4849 // Otherwise, we use encoding T4, which does not have a cc_out
4854 // The thumb2 multiply instruction doesn't have a CCOut register, so
4855 // if we have a "mul" mnemonic in Thumb mode, check if we'll be able to
4856 // use the 16-bit encoding or not.
4857 if (isThumbTwo() && Mnemonic == "mul" && Operands.size() == 6 &&
4858 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
4859 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4860 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4861 static_cast<ARMOperand*>(Operands[5])->isReg() &&
4862 // If the registers aren't low regs, the destination reg isn't the
4863 // same as one of the source regs, or the cc_out operand is zero
4864 // outside of an IT block, we have to use the 32-bit encoding, so
4865 // remove the cc_out operand.
4866 (!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
4867 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) ||
4868 !isARMLowRegister(static_cast<ARMOperand*>(Operands[5])->getReg()) ||
4870 (static_cast<ARMOperand*>(Operands[3])->getReg() !=
4871 static_cast<ARMOperand*>(Operands[5])->getReg() &&
4872 static_cast<ARMOperand*>(Operands[3])->getReg() !=
4873 static_cast<ARMOperand*>(Operands[4])->getReg())))
4876 // Also check the 'mul' syntax variant that doesn't specify an explicit
4877 // destination register.
4878 if (isThumbTwo() && Mnemonic == "mul" && Operands.size() == 5 &&
4879 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
4880 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4881 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4882 // If the registers aren't low regs or the cc_out operand is zero
4883 // outside of an IT block, we have to use the 32-bit encoding, so
4884 // remove the cc_out operand.
4885 (!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
4886 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) ||
4892 // Register-register 'add/sub' for thumb does not have a cc_out operand
4893 // when it's an ADD/SUB SP, #imm. Be lenient on count since there's also
4894 // the "add/sub SP, SP, #imm" version. If the follow-up operands aren't
4895 // right, this will result in better diagnostics (which operand is off)
4897 if (isThumb() && (Mnemonic == "add" || Mnemonic == "sub") &&
4898 (Operands.size() == 5 || Operands.size() == 6) &&
4899 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4900 static_cast<ARMOperand*>(Operands[3])->getReg() == ARM::SP &&
4901 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
4902 (static_cast<ARMOperand*>(Operands[4])->isImm() ||
4903 (Operands.size() == 6 &&
4904 static_cast<ARMOperand*>(Operands[5])->isImm())))
4910 static bool isDataTypeToken(StringRef Tok) {
4911 return Tok == ".8" || Tok == ".16" || Tok == ".32" || Tok == ".64" ||
4912 Tok == ".i8" || Tok == ".i16" || Tok == ".i32" || Tok == ".i64" ||
4913 Tok == ".u8" || Tok == ".u16" || Tok == ".u32" || Tok == ".u64" ||
4914 Tok == ".s8" || Tok == ".s16" || Tok == ".s32" || Tok == ".s64" ||
4915 Tok == ".p8" || Tok == ".p16" || Tok == ".f32" || Tok == ".f64" ||
4916 Tok == ".f" || Tok == ".d";
4919 // FIXME: This bit should probably be handled via an explicit match class
4920 // in the .td files that matches the suffix instead of having it be
4921 // a literal string token the way it is now.
4922 static bool doesIgnoreDataTypeSuffix(StringRef Mnemonic, StringRef DT) {
4923 return Mnemonic.startswith("vldm") || Mnemonic.startswith("vstm");
4926 static void applyMnemonicAliases(StringRef &Mnemonic, unsigned Features);
4927 /// Parse an arm instruction mnemonic followed by its operands.
4928 bool ARMAsmParser::ParseInstruction(StringRef Name, SMLoc NameLoc,
4929 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4930 // Apply mnemonic aliases before doing anything else, as the destination
4931 // mnemnonic may include suffices and we want to handle them normally.
4932 // The generic tblgen'erated code does this later, at the start of
4933 // MatchInstructionImpl(), but that's too late for aliases that include
4934 // any sort of suffix.
4935 unsigned AvailableFeatures = getAvailableFeatures();
4936 applyMnemonicAliases(Name, AvailableFeatures);
4938 // First check for the ARM-specific .req directive.
4939 if (Parser.getTok().is(AsmToken::Identifier) &&
4940 Parser.getTok().getIdentifier() == ".req") {
4941 parseDirectiveReq(Name, NameLoc);
4942 // We always return 'error' for this, as we're done with this
4943 // statement and don't need to match the 'instruction."
4947 // Create the leading tokens for the mnemonic, split by '.' characters.
4948 size_t Start = 0, Next = Name.find('.');
4949 StringRef Mnemonic = Name.slice(Start, Next);
4951 // Split out the predication code and carry setting flag from the mnemonic.
4952 unsigned PredicationCode;
4953 unsigned ProcessorIMod;
4956 Mnemonic = splitMnemonic(Mnemonic, PredicationCode, CarrySetting,
4957 ProcessorIMod, ITMask);
4959 // In Thumb1, only the branch (B) instruction can be predicated.
4960 if (isThumbOne() && PredicationCode != ARMCC::AL && Mnemonic != "b") {
4961 Parser.EatToEndOfStatement();
4962 return Error(NameLoc, "conditional execution not supported in Thumb1");
4965 Operands.push_back(ARMOperand::CreateToken(Mnemonic, NameLoc));
4967 // Handle the IT instruction ITMask. Convert it to a bitmask. This
4968 // is the mask as it will be for the IT encoding if the conditional
4969 // encoding has a '1' as it's bit0 (i.e. 't' ==> '1'). In the case
4970 // where the conditional bit0 is zero, the instruction post-processing
4971 // will adjust the mask accordingly.
4972 if (Mnemonic == "it") {
4973 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + 2);
4974 if (ITMask.size() > 3) {
4975 Parser.EatToEndOfStatement();
4976 return Error(Loc, "too many conditions on IT instruction");
4979 for (unsigned i = ITMask.size(); i != 0; --i) {
4980 char pos = ITMask[i - 1];
4981 if (pos != 't' && pos != 'e') {
4982 Parser.EatToEndOfStatement();
4983 return Error(Loc, "illegal IT block condition mask '" + ITMask + "'");
4986 if (ITMask[i - 1] == 't')
4989 Operands.push_back(ARMOperand::CreateITMask(Mask, Loc));
4992 // FIXME: This is all a pretty gross hack. We should automatically handle
4993 // optional operands like this via tblgen.
4995 // Next, add the CCOut and ConditionCode operands, if needed.
4997 // For mnemonics which can ever incorporate a carry setting bit or predication
4998 // code, our matching model involves us always generating CCOut and
4999 // ConditionCode operands to match the mnemonic "as written" and then we let
5000 // the matcher deal with finding the right instruction or generating an
5001 // appropriate error.
5002 bool CanAcceptCarrySet, CanAcceptPredicationCode;
5003 getMnemonicAcceptInfo(Mnemonic, CanAcceptCarrySet, CanAcceptPredicationCode);
5005 // If we had a carry-set on an instruction that can't do that, issue an
5007 if (!CanAcceptCarrySet && CarrySetting) {
5008 Parser.EatToEndOfStatement();
5009 return Error(NameLoc, "instruction '" + Mnemonic +
5010 "' can not set flags, but 's' suffix specified");
5012 // If we had a predication code on an instruction that can't do that, issue an
5014 if (!CanAcceptPredicationCode && PredicationCode != ARMCC::AL) {
5015 Parser.EatToEndOfStatement();
5016 return Error(NameLoc, "instruction '" + Mnemonic +
5017 "' is not predicable, but condition code specified");
5020 // Add the carry setting operand, if necessary.
5021 if (CanAcceptCarrySet) {
5022 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Mnemonic.size());
5023 Operands.push_back(ARMOperand::CreateCCOut(CarrySetting ? ARM::CPSR : 0,
5027 // Add the predication code operand, if necessary.
5028 if (CanAcceptPredicationCode) {
5029 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Mnemonic.size() +
5031 Operands.push_back(ARMOperand::CreateCondCode(
5032 ARMCC::CondCodes(PredicationCode), Loc));
5035 // Add the processor imod operand, if necessary.
5036 if (ProcessorIMod) {
5037 Operands.push_back(ARMOperand::CreateImm(
5038 MCConstantExpr::Create(ProcessorIMod, getContext()),
5042 // Add the remaining tokens in the mnemonic.
5043 while (Next != StringRef::npos) {
5045 Next = Name.find('.', Start + 1);
5046 StringRef ExtraToken = Name.slice(Start, Next);
5048 // Some NEON instructions have an optional datatype suffix that is
5049 // completely ignored. Check for that.
5050 if (isDataTypeToken(ExtraToken) &&
5051 doesIgnoreDataTypeSuffix(Mnemonic, ExtraToken))
5054 if (ExtraToken != ".n") {
5055 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Start);
5056 Operands.push_back(ARMOperand::CreateToken(ExtraToken, Loc));
5060 // Read the remaining operands.
5061 if (getLexer().isNot(AsmToken::EndOfStatement)) {
5062 // Read the first operand.
5063 if (parseOperand(Operands, Mnemonic)) {
5064 Parser.EatToEndOfStatement();
5068 while (getLexer().is(AsmToken::Comma)) {
5069 Parser.Lex(); // Eat the comma.
5071 // Parse and remember the operand.
5072 if (parseOperand(Operands, Mnemonic)) {
5073 Parser.EatToEndOfStatement();
5079 if (getLexer().isNot(AsmToken::EndOfStatement)) {
5080 SMLoc Loc = getLexer().getLoc();
5081 Parser.EatToEndOfStatement();
5082 return Error(Loc, "unexpected token in argument list");
5085 Parser.Lex(); // Consume the EndOfStatement
5087 // Some instructions, mostly Thumb, have forms for the same mnemonic that
5088 // do and don't have a cc_out optional-def operand. With some spot-checks
5089 // of the operand list, we can figure out which variant we're trying to
5090 // parse and adjust accordingly before actually matching. We shouldn't ever
5091 // try to remove a cc_out operand that was explicitly set on the the
5092 // mnemonic, of course (CarrySetting == true). Reason number #317 the
5093 // table driven matcher doesn't fit well with the ARM instruction set.
5094 if (!CarrySetting && shouldOmitCCOutOperand(Mnemonic, Operands)) {
5095 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5096 Operands.erase(Operands.begin() + 1);
5100 // ARM mode 'blx' need special handling, as the register operand version
5101 // is predicable, but the label operand version is not. So, we can't rely
5102 // on the Mnemonic based checking to correctly figure out when to put
5103 // a k_CondCode operand in the list. If we're trying to match the label
5104 // version, remove the k_CondCode operand here.
5105 if (!isThumb() && Mnemonic == "blx" && Operands.size() == 3 &&
5106 static_cast<ARMOperand*>(Operands[2])->isImm()) {
5107 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5108 Operands.erase(Operands.begin() + 1);
5112 // The vector-compare-to-zero instructions have a literal token "#0" at
5113 // the end that comes to here as an immediate operand. Convert it to a
5114 // token to play nicely with the matcher.
5115 if ((Mnemonic == "vceq" || Mnemonic == "vcge" || Mnemonic == "vcgt" ||
5116 Mnemonic == "vcle" || Mnemonic == "vclt") && Operands.size() == 6 &&
5117 static_cast<ARMOperand*>(Operands[5])->isImm()) {
5118 ARMOperand *Op = static_cast<ARMOperand*>(Operands[5]);
5119 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm());
5120 if (CE && CE->getValue() == 0) {
5121 Operands.erase(Operands.begin() + 5);
5122 Operands.push_back(ARMOperand::CreateToken("#0", Op->getStartLoc()));
5126 // VCMP{E} does the same thing, but with a different operand count.
5127 if ((Mnemonic == "vcmp" || Mnemonic == "vcmpe") && Operands.size() == 5 &&
5128 static_cast<ARMOperand*>(Operands[4])->isImm()) {
5129 ARMOperand *Op = static_cast<ARMOperand*>(Operands[4]);
5130 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm());
5131 if (CE && CE->getValue() == 0) {
5132 Operands.erase(Operands.begin() + 4);
5133 Operands.push_back(ARMOperand::CreateToken("#0", Op->getStartLoc()));
5137 // Similarly, the Thumb1 "RSB" instruction has a literal "#0" on the
5138 // end. Convert it to a token here. Take care not to convert those
5139 // that should hit the Thumb2 encoding.
5140 if (Mnemonic == "rsb" && isThumb() && Operands.size() == 6 &&
5141 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5142 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5143 static_cast<ARMOperand*>(Operands[5])->isImm()) {
5144 ARMOperand *Op = static_cast<ARMOperand*>(Operands[5]);
5145 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm());
5146 if (CE && CE->getValue() == 0 &&
5148 // The cc_out operand matches the IT block.
5149 ((inITBlock() != CarrySetting) &&
5150 // Neither register operand is a high register.
5151 (isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) &&
5152 isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()))))){
5153 Operands.erase(Operands.begin() + 5);
5154 Operands.push_back(ARMOperand::CreateToken("#0", Op->getStartLoc()));
5162 // Validate context-sensitive operand constraints.
5164 // return 'true' if register list contains non-low GPR registers,
5165 // 'false' otherwise. If Reg is in the register list or is HiReg, set
5166 // 'containsReg' to true.
5167 static bool checkLowRegisterList(MCInst Inst, unsigned OpNo, unsigned Reg,
5168 unsigned HiReg, bool &containsReg) {
5169 containsReg = false;
5170 for (unsigned i = OpNo; i < Inst.getNumOperands(); ++i) {
5171 unsigned OpReg = Inst.getOperand(i).getReg();
5174 // Anything other than a low register isn't legal here.
5175 if (!isARMLowRegister(OpReg) && (!HiReg || OpReg != HiReg))
5181 // Check if the specified regisgter is in the register list of the inst,
5182 // starting at the indicated operand number.
5183 static bool listContainsReg(MCInst &Inst, unsigned OpNo, unsigned Reg) {
5184 for (unsigned i = OpNo; i < Inst.getNumOperands(); ++i) {
5185 unsigned OpReg = Inst.getOperand(i).getReg();
5192 // FIXME: We would really prefer to have MCInstrInfo (the wrapper around
5193 // the ARMInsts array) instead. Getting that here requires awkward
5194 // API changes, though. Better way?
5196 extern const MCInstrDesc ARMInsts[];
5198 static const MCInstrDesc &getInstDesc(unsigned Opcode) {
5199 return ARMInsts[Opcode];
5202 // FIXME: We would really like to be able to tablegen'erate this.
5204 validateInstruction(MCInst &Inst,
5205 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
5206 const MCInstrDesc &MCID = getInstDesc(Inst.getOpcode());
5207 SMLoc Loc = Operands[0]->getStartLoc();
5208 // Check the IT block state first.
5209 // NOTE: BKPT instruction has the interesting property of being
5210 // allowed in IT blocks, but not being predicable. It just always
5212 if (inITBlock() && Inst.getOpcode() != ARM::tBKPT &&
5213 Inst.getOpcode() != ARM::BKPT) {
5215 if (ITState.FirstCond)
5216 ITState.FirstCond = false;
5218 bit = (ITState.Mask >> (5 - ITState.CurPosition)) & 1;
5219 // The instruction must be predicable.
5220 if (!MCID.isPredicable())
5221 return Error(Loc, "instructions in IT block must be predicable");
5222 unsigned Cond = Inst.getOperand(MCID.findFirstPredOperandIdx()).getImm();
5223 unsigned ITCond = bit ? ITState.Cond :
5224 ARMCC::getOppositeCondition(ITState.Cond);
5225 if (Cond != ITCond) {
5226 // Find the condition code Operand to get its SMLoc information.
5228 for (unsigned i = 1; i < Operands.size(); ++i)
5229 if (static_cast<ARMOperand*>(Operands[i])->isCondCode())
5230 CondLoc = Operands[i]->getStartLoc();
5231 return Error(CondLoc, "incorrect condition in IT block; got '" +
5232 StringRef(ARMCondCodeToString(ARMCC::CondCodes(Cond))) +
5233 "', but expected '" +
5234 ARMCondCodeToString(ARMCC::CondCodes(ITCond)) + "'");
5236 // Check for non-'al' condition codes outside of the IT block.
5237 } else if (isThumbTwo() && MCID.isPredicable() &&
5238 Inst.getOperand(MCID.findFirstPredOperandIdx()).getImm() !=
5239 ARMCC::AL && Inst.getOpcode() != ARM::tB &&
5240 Inst.getOpcode() != ARM::t2B)
5241 return Error(Loc, "predicated instructions must be in IT block");
5243 switch (Inst.getOpcode()) {
5246 case ARM::LDRD_POST:
5248 // Rt2 must be Rt + 1.
5249 unsigned Rt = getARMRegisterNumbering(Inst.getOperand(0).getReg());
5250 unsigned Rt2 = getARMRegisterNumbering(Inst.getOperand(1).getReg());
5252 return Error(Operands[3]->getStartLoc(),
5253 "destination operands must be sequential");
5257 // Rt2 must be Rt + 1.
5258 unsigned Rt = getARMRegisterNumbering(Inst.getOperand(0).getReg());
5259 unsigned Rt2 = getARMRegisterNumbering(Inst.getOperand(1).getReg());
5261 return Error(Operands[3]->getStartLoc(),
5262 "source operands must be sequential");
5266 case ARM::STRD_POST:
5268 // Rt2 must be Rt + 1.
5269 unsigned Rt = getARMRegisterNumbering(Inst.getOperand(1).getReg());
5270 unsigned Rt2 = getARMRegisterNumbering(Inst.getOperand(2).getReg());
5272 return Error(Operands[3]->getStartLoc(),
5273 "source operands must be sequential");
5278 // width must be in range [1, 32-lsb]
5279 unsigned lsb = Inst.getOperand(2).getImm();
5280 unsigned widthm1 = Inst.getOperand(3).getImm();
5281 if (widthm1 >= 32 - lsb)
5282 return Error(Operands[5]->getStartLoc(),
5283 "bitfield width must be in range [1,32-lsb]");
5287 // If we're parsing Thumb2, the .w variant is available and handles
5288 // most cases that are normally illegal for a Thumb1 LDM
5289 // instruction. We'll make the transformation in processInstruction()
5292 // Thumb LDM instructions are writeback iff the base register is not
5293 // in the register list.
5294 unsigned Rn = Inst.getOperand(0).getReg();
5295 bool hasWritebackToken =
5296 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
5297 static_cast<ARMOperand*>(Operands[3])->getToken() == "!");
5298 bool listContainsBase;
5299 if (checkLowRegisterList(Inst, 3, Rn, 0, listContainsBase) && !isThumbTwo())
5300 return Error(Operands[3 + hasWritebackToken]->getStartLoc(),
5301 "registers must be in range r0-r7");
5302 // If we should have writeback, then there should be a '!' token.
5303 if (!listContainsBase && !hasWritebackToken && !isThumbTwo())
5304 return Error(Operands[2]->getStartLoc(),
5305 "writeback operator '!' expected");
5306 // If we should not have writeback, there must not be a '!'. This is
5307 // true even for the 32-bit wide encodings.
5308 if (listContainsBase && hasWritebackToken)
5309 return Error(Operands[3]->getStartLoc(),
5310 "writeback operator '!' not allowed when base register "
5311 "in register list");
5315 case ARM::t2LDMIA_UPD: {
5316 if (listContainsReg(Inst, 3, Inst.getOperand(0).getReg()))
5317 return Error(Operands[4]->getStartLoc(),
5318 "writeback operator '!' not allowed when base register "
5319 "in register list");
5322 // Like for ldm/stm, push and pop have hi-reg handling version in Thumb2,
5323 // so only issue a diagnostic for thumb1. The instructions will be
5324 // switched to the t2 encodings in processInstruction() if necessary.
5326 bool listContainsBase;
5327 if (checkLowRegisterList(Inst, 2, 0, ARM::PC, listContainsBase) &&
5329 return Error(Operands[2]->getStartLoc(),
5330 "registers must be in range r0-r7 or pc");
5334 bool listContainsBase;
5335 if (checkLowRegisterList(Inst, 2, 0, ARM::LR, listContainsBase) &&
5337 return Error(Operands[2]->getStartLoc(),
5338 "registers must be in range r0-r7 or lr");
5341 case ARM::tSTMIA_UPD: {
5342 bool listContainsBase;
5343 if (checkLowRegisterList(Inst, 4, 0, 0, listContainsBase) && !isThumbTwo())
5344 return Error(Operands[4]->getStartLoc(),
5345 "registers must be in range r0-r7");
5348 case ARM::tADDrSP: {
5349 // If the non-SP source operand and the destination operand are not the
5350 // same, we need thumb2 (for the wide encoding), or we have an error.
5351 if (!isThumbTwo() &&
5352 Inst.getOperand(0).getReg() != Inst.getOperand(2).getReg()) {
5353 return Error(Operands[4]->getStartLoc(),
5354 "source register must be the same as destination");
5363 static unsigned getRealVSTOpcode(unsigned Opc, unsigned &Spacing) {
5365 default: llvm_unreachable("unexpected opcode!");
5367 case ARM::VST1LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST1LNd8_UPD;
5368 case ARM::VST1LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST1LNd16_UPD;
5369 case ARM::VST1LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST1LNd32_UPD;
5370 case ARM::VST1LNdWB_register_Asm_8: Spacing = 1; return ARM::VST1LNd8_UPD;
5371 case ARM::VST1LNdWB_register_Asm_16: Spacing = 1; return ARM::VST1LNd16_UPD;
5372 case ARM::VST1LNdWB_register_Asm_32: Spacing = 1; return ARM::VST1LNd32_UPD;
5373 case ARM::VST1LNdAsm_8: Spacing = 1; return ARM::VST1LNd8;
5374 case ARM::VST1LNdAsm_16: Spacing = 1; return ARM::VST1LNd16;
5375 case ARM::VST1LNdAsm_32: Spacing = 1; return ARM::VST1LNd32;
5378 case ARM::VST2LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST2LNd8_UPD;
5379 case ARM::VST2LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST2LNd16_UPD;
5380 case ARM::VST2LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST2LNd32_UPD;
5381 case ARM::VST2LNqWB_fixed_Asm_16: Spacing = 2; return ARM::VST2LNq16_UPD;
5382 case ARM::VST2LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST2LNq32_UPD;
5384 case ARM::VST2LNdWB_register_Asm_8: Spacing = 1; return ARM::VST2LNd8_UPD;
5385 case ARM::VST2LNdWB_register_Asm_16: Spacing = 1; return ARM::VST2LNd16_UPD;
5386 case ARM::VST2LNdWB_register_Asm_32: Spacing = 1; return ARM::VST2LNd32_UPD;
5387 case ARM::VST2LNqWB_register_Asm_16: Spacing = 2; return ARM::VST2LNq16_UPD;
5388 case ARM::VST2LNqWB_register_Asm_32: Spacing = 2; return ARM::VST2LNq32_UPD;
5390 case ARM::VST2LNdAsm_8: Spacing = 1; return ARM::VST2LNd8;
5391 case ARM::VST2LNdAsm_16: Spacing = 1; return ARM::VST2LNd16;
5392 case ARM::VST2LNdAsm_32: Spacing = 1; return ARM::VST2LNd32;
5393 case ARM::VST2LNqAsm_16: Spacing = 2; return ARM::VST2LNq16;
5394 case ARM::VST2LNqAsm_32: Spacing = 2; return ARM::VST2LNq32;
5397 case ARM::VST3LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST3LNd8_UPD;
5398 case ARM::VST3LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST3LNd16_UPD;
5399 case ARM::VST3LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST3LNd32_UPD;
5400 case ARM::VST3LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VST3LNq16_UPD;
5401 case ARM::VST3LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST3LNq32_UPD;
5402 case ARM::VST3LNdWB_register_Asm_8: Spacing = 1; return ARM::VST3LNd8_UPD;
5403 case ARM::VST3LNdWB_register_Asm_16: Spacing = 1; return ARM::VST3LNd16_UPD;
5404 case ARM::VST3LNdWB_register_Asm_32: Spacing = 1; return ARM::VST3LNd32_UPD;
5405 case ARM::VST3LNqWB_register_Asm_16: Spacing = 2; return ARM::VST3LNq16_UPD;
5406 case ARM::VST3LNqWB_register_Asm_32: Spacing = 2; return ARM::VST3LNq32_UPD;
5407 case ARM::VST3LNdAsm_8: Spacing = 1; return ARM::VST3LNd8;
5408 case ARM::VST3LNdAsm_16: Spacing = 1; return ARM::VST3LNd16;
5409 case ARM::VST3LNdAsm_32: Spacing = 1; return ARM::VST3LNd32;
5410 case ARM::VST3LNqAsm_16: Spacing = 2; return ARM::VST3LNq16;
5411 case ARM::VST3LNqAsm_32: Spacing = 2; return ARM::VST3LNq32;
5414 case ARM::VST3dWB_fixed_Asm_8: Spacing = 1; return ARM::VST3d8_UPD;
5415 case ARM::VST3dWB_fixed_Asm_16: Spacing = 1; return ARM::VST3d16_UPD;
5416 case ARM::VST3dWB_fixed_Asm_32: Spacing = 1; return ARM::VST3d32_UPD;
5417 case ARM::VST3qWB_fixed_Asm_8: Spacing = 2; return ARM::VST3q8_UPD;
5418 case ARM::VST3qWB_fixed_Asm_16: Spacing = 2; return ARM::VST3q16_UPD;
5419 case ARM::VST3qWB_fixed_Asm_32: Spacing = 2; return ARM::VST3q32_UPD;
5420 case ARM::VST3dWB_register_Asm_8: Spacing = 1; return ARM::VST3d8_UPD;
5421 case ARM::VST3dWB_register_Asm_16: Spacing = 1; return ARM::VST3d16_UPD;
5422 case ARM::VST3dWB_register_Asm_32: Spacing = 1; return ARM::VST3d32_UPD;
5423 case ARM::VST3qWB_register_Asm_8: Spacing = 2; return ARM::VST3q8_UPD;
5424 case ARM::VST3qWB_register_Asm_16: Spacing = 2; return ARM::VST3q16_UPD;
5425 case ARM::VST3qWB_register_Asm_32: Spacing = 2; return ARM::VST3q32_UPD;
5426 case ARM::VST3dAsm_8: Spacing = 1; return ARM::VST3d8;
5427 case ARM::VST3dAsm_16: Spacing = 1; return ARM::VST3d16;
5428 case ARM::VST3dAsm_32: Spacing = 1; return ARM::VST3d32;
5429 case ARM::VST3qAsm_8: Spacing = 2; return ARM::VST3q8;
5430 case ARM::VST3qAsm_16: Spacing = 2; return ARM::VST3q16;
5431 case ARM::VST3qAsm_32: Spacing = 2; return ARM::VST3q32;
5434 case ARM::VST4LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST4LNd8_UPD;
5435 case ARM::VST4LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST4LNd16_UPD;
5436 case ARM::VST4LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST4LNd32_UPD;
5437 case ARM::VST4LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VST4LNq16_UPD;
5438 case ARM::VST4LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST4LNq32_UPD;
5439 case ARM::VST4LNdWB_register_Asm_8: Spacing = 1; return ARM::VST4LNd8_UPD;
5440 case ARM::VST4LNdWB_register_Asm_16: Spacing = 1; return ARM::VST4LNd16_UPD;
5441 case ARM::VST4LNdWB_register_Asm_32: Spacing = 1; return ARM::VST4LNd32_UPD;
5442 case ARM::VST4LNqWB_register_Asm_16: Spacing = 2; return ARM::VST4LNq16_UPD;
5443 case ARM::VST4LNqWB_register_Asm_32: Spacing = 2; return ARM::VST4LNq32_UPD;
5444 case ARM::VST4LNdAsm_8: Spacing = 1; return ARM::VST4LNd8;
5445 case ARM::VST4LNdAsm_16: Spacing = 1; return ARM::VST4LNd16;
5446 case ARM::VST4LNdAsm_32: Spacing = 1; return ARM::VST4LNd32;
5447 case ARM::VST4LNqAsm_16: Spacing = 2; return ARM::VST4LNq16;
5448 case ARM::VST4LNqAsm_32: Spacing = 2; return ARM::VST4LNq32;
5451 case ARM::VST4dWB_fixed_Asm_8: Spacing = 1; return ARM::VST4d8_UPD;
5452 case ARM::VST4dWB_fixed_Asm_16: Spacing = 1; return ARM::VST4d16_UPD;
5453 case ARM::VST4dWB_fixed_Asm_32: Spacing = 1; return ARM::VST4d32_UPD;
5454 case ARM::VST4qWB_fixed_Asm_8: Spacing = 2; return ARM::VST4q8_UPD;
5455 case ARM::VST4qWB_fixed_Asm_16: Spacing = 2; return ARM::VST4q16_UPD;
5456 case ARM::VST4qWB_fixed_Asm_32: Spacing = 2; return ARM::VST4q32_UPD;
5457 case ARM::VST4dWB_register_Asm_8: Spacing = 1; return ARM::VST4d8_UPD;
5458 case ARM::VST4dWB_register_Asm_16: Spacing = 1; return ARM::VST4d16_UPD;
5459 case ARM::VST4dWB_register_Asm_32: Spacing = 1; return ARM::VST4d32_UPD;
5460 case ARM::VST4qWB_register_Asm_8: Spacing = 2; return ARM::VST4q8_UPD;
5461 case ARM::VST4qWB_register_Asm_16: Spacing = 2; return ARM::VST4q16_UPD;
5462 case ARM::VST4qWB_register_Asm_32: Spacing = 2; return ARM::VST4q32_UPD;
5463 case ARM::VST4dAsm_8: Spacing = 1; return ARM::VST4d8;
5464 case ARM::VST4dAsm_16: Spacing = 1; return ARM::VST4d16;
5465 case ARM::VST4dAsm_32: Spacing = 1; return ARM::VST4d32;
5466 case ARM::VST4qAsm_8: Spacing = 2; return ARM::VST4q8;
5467 case ARM::VST4qAsm_16: Spacing = 2; return ARM::VST4q16;
5468 case ARM::VST4qAsm_32: Spacing = 2; return ARM::VST4q32;
5472 static unsigned getRealVLDOpcode(unsigned Opc, unsigned &Spacing) {
5474 default: llvm_unreachable("unexpected opcode!");
5476 case ARM::VLD1LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD1LNd8_UPD;
5477 case ARM::VLD1LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD1LNd16_UPD;
5478 case ARM::VLD1LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD1LNd32_UPD;
5479 case ARM::VLD1LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD1LNd8_UPD;
5480 case ARM::VLD1LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD1LNd16_UPD;
5481 case ARM::VLD1LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD1LNd32_UPD;
5482 case ARM::VLD1LNdAsm_8: Spacing = 1; return ARM::VLD1LNd8;
5483 case ARM::VLD1LNdAsm_16: Spacing = 1; return ARM::VLD1LNd16;
5484 case ARM::VLD1LNdAsm_32: Spacing = 1; return ARM::VLD1LNd32;
5487 case ARM::VLD2LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD2LNd8_UPD;
5488 case ARM::VLD2LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD2LNd16_UPD;
5489 case ARM::VLD2LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD2LNd32_UPD;
5490 case ARM::VLD2LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD2LNq16_UPD;
5491 case ARM::VLD2LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD2LNq32_UPD;
5492 case ARM::VLD2LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD2LNd8_UPD;
5493 case ARM::VLD2LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD2LNd16_UPD;
5494 case ARM::VLD2LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD2LNd32_UPD;
5495 case ARM::VLD2LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD2LNq16_UPD;
5496 case ARM::VLD2LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD2LNq32_UPD;
5497 case ARM::VLD2LNdAsm_8: Spacing = 1; return ARM::VLD2LNd8;
5498 case ARM::VLD2LNdAsm_16: Spacing = 1; return ARM::VLD2LNd16;
5499 case ARM::VLD2LNdAsm_32: Spacing = 1; return ARM::VLD2LNd32;
5500 case ARM::VLD2LNqAsm_16: Spacing = 2; return ARM::VLD2LNq16;
5501 case ARM::VLD2LNqAsm_32: Spacing = 2; return ARM::VLD2LNq32;
5504 case ARM::VLD3DUPdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3DUPd8_UPD;
5505 case ARM::VLD3DUPdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3DUPd16_UPD;
5506 case ARM::VLD3DUPdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3DUPd32_UPD;
5507 case ARM::VLD3DUPqWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3DUPq8_UPD;
5508 case ARM::VLD3DUPqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3DUPq16_UPD;
5509 case ARM::VLD3DUPqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3DUPq32_UPD;
5510 case ARM::VLD3DUPdWB_register_Asm_8: Spacing = 1; return ARM::VLD3DUPd8_UPD;
5511 case ARM::VLD3DUPdWB_register_Asm_16: Spacing = 1; return ARM::VLD3DUPd16_UPD;
5512 case ARM::VLD3DUPdWB_register_Asm_32: Spacing = 1; return ARM::VLD3DUPd32_UPD;
5513 case ARM::VLD3DUPqWB_register_Asm_8: Spacing = 2; return ARM::VLD3DUPq8_UPD;
5514 case ARM::VLD3DUPqWB_register_Asm_16: Spacing = 2; return ARM::VLD3DUPq16_UPD;
5515 case ARM::VLD3DUPqWB_register_Asm_32: Spacing = 2; return ARM::VLD3DUPq32_UPD;
5516 case ARM::VLD3DUPdAsm_8: Spacing = 1; return ARM::VLD3DUPd8;
5517 case ARM::VLD3DUPdAsm_16: Spacing = 1; return ARM::VLD3DUPd16;
5518 case ARM::VLD3DUPdAsm_32: Spacing = 1; return ARM::VLD3DUPd32;
5519 case ARM::VLD3DUPqAsm_8: Spacing = 2; return ARM::VLD3DUPq8;
5520 case ARM::VLD3DUPqAsm_16: Spacing = 2; return ARM::VLD3DUPq16;
5521 case ARM::VLD3DUPqAsm_32: Spacing = 2; return ARM::VLD3DUPq32;
5524 case ARM::VLD3LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3LNd8_UPD;
5525 case ARM::VLD3LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3LNd16_UPD;
5526 case ARM::VLD3LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3LNd32_UPD;
5527 case ARM::VLD3LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3LNq16_UPD;
5528 case ARM::VLD3LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3LNq32_UPD;
5529 case ARM::VLD3LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD3LNd8_UPD;
5530 case ARM::VLD3LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD3LNd16_UPD;
5531 case ARM::VLD3LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD3LNd32_UPD;
5532 case ARM::VLD3LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD3LNq16_UPD;
5533 case ARM::VLD3LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD3LNq32_UPD;
5534 case ARM::VLD3LNdAsm_8: Spacing = 1; return ARM::VLD3LNd8;
5535 case ARM::VLD3LNdAsm_16: Spacing = 1; return ARM::VLD3LNd16;
5536 case ARM::VLD3LNdAsm_32: Spacing = 1; return ARM::VLD3LNd32;
5537 case ARM::VLD3LNqAsm_16: Spacing = 2; return ARM::VLD3LNq16;
5538 case ARM::VLD3LNqAsm_32: Spacing = 2; return ARM::VLD3LNq32;
5541 case ARM::VLD3dWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3d8_UPD;
5542 case ARM::VLD3dWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3d16_UPD;
5543 case ARM::VLD3dWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3d32_UPD;
5544 case ARM::VLD3qWB_fixed_Asm_8: Spacing = 2; return ARM::VLD3q8_UPD;
5545 case ARM::VLD3qWB_fixed_Asm_16: Spacing = 2; return ARM::VLD3q16_UPD;
5546 case ARM::VLD3qWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3q32_UPD;
5547 case ARM::VLD3dWB_register_Asm_8: Spacing = 1; return ARM::VLD3d8_UPD;
5548 case ARM::VLD3dWB_register_Asm_16: Spacing = 1; return ARM::VLD3d16_UPD;
5549 case ARM::VLD3dWB_register_Asm_32: Spacing = 1; return ARM::VLD3d32_UPD;
5550 case ARM::VLD3qWB_register_Asm_8: Spacing = 2; return ARM::VLD3q8_UPD;
5551 case ARM::VLD3qWB_register_Asm_16: Spacing = 2; return ARM::VLD3q16_UPD;
5552 case ARM::VLD3qWB_register_Asm_32: Spacing = 2; return ARM::VLD3q32_UPD;
5553 case ARM::VLD3dAsm_8: Spacing = 1; return ARM::VLD3d8;
5554 case ARM::VLD3dAsm_16: Spacing = 1; return ARM::VLD3d16;
5555 case ARM::VLD3dAsm_32: Spacing = 1; return ARM::VLD3d32;
5556 case ARM::VLD3qAsm_8: Spacing = 2; return ARM::VLD3q8;
5557 case ARM::VLD3qAsm_16: Spacing = 2; return ARM::VLD3q16;
5558 case ARM::VLD3qAsm_32: Spacing = 2; return ARM::VLD3q32;
5561 case ARM::VLD4LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4LNd8_UPD;
5562 case ARM::VLD4LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4LNd16_UPD;
5563 case ARM::VLD4LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4LNd32_UPD;
5564 case ARM::VLD4LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4LNq16_UPD;
5565 case ARM::VLD4LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4LNq32_UPD;
5566 case ARM::VLD4LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD4LNd8_UPD;
5567 case ARM::VLD4LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD4LNd16_UPD;
5568 case ARM::VLD4LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD4LNd32_UPD;
5569 case ARM::VLD4LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD4LNq16_UPD;
5570 case ARM::VLD4LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD4LNq32_UPD;
5571 case ARM::VLD4LNdAsm_8: Spacing = 1; return ARM::VLD4LNd8;
5572 case ARM::VLD4LNdAsm_16: Spacing = 1; return ARM::VLD4LNd16;
5573 case ARM::VLD4LNdAsm_32: Spacing = 1; return ARM::VLD4LNd32;
5574 case ARM::VLD4LNqAsm_16: Spacing = 2; return ARM::VLD4LNq16;
5575 case ARM::VLD4LNqAsm_32: Spacing = 2; return ARM::VLD4LNq32;
5578 case ARM::VLD4DUPdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4DUPd8_UPD;
5579 case ARM::VLD4DUPdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4DUPd16_UPD;
5580 case ARM::VLD4DUPdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4DUPd32_UPD;
5581 case ARM::VLD4DUPqWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4DUPq8_UPD;
5582 case ARM::VLD4DUPqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4DUPq16_UPD;
5583 case ARM::VLD4DUPqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4DUPq32_UPD;
5584 case ARM::VLD4DUPdWB_register_Asm_8: Spacing = 1; return ARM::VLD4DUPd8_UPD;
5585 case ARM::VLD4DUPdWB_register_Asm_16: Spacing = 1; return ARM::VLD4DUPd16_UPD;
5586 case ARM::VLD4DUPdWB_register_Asm_32: Spacing = 1; return ARM::VLD4DUPd32_UPD;
5587 case ARM::VLD4DUPqWB_register_Asm_8: Spacing = 2; return ARM::VLD4DUPq8_UPD;
5588 case ARM::VLD4DUPqWB_register_Asm_16: Spacing = 2; return ARM::VLD4DUPq16_UPD;
5589 case ARM::VLD4DUPqWB_register_Asm_32: Spacing = 2; return ARM::VLD4DUPq32_UPD;
5590 case ARM::VLD4DUPdAsm_8: Spacing = 1; return ARM::VLD4DUPd8;
5591 case ARM::VLD4DUPdAsm_16: Spacing = 1; return ARM::VLD4DUPd16;
5592 case ARM::VLD4DUPdAsm_32: Spacing = 1; return ARM::VLD4DUPd32;
5593 case ARM::VLD4DUPqAsm_8: Spacing = 2; return ARM::VLD4DUPq8;
5594 case ARM::VLD4DUPqAsm_16: Spacing = 2; return ARM::VLD4DUPq16;
5595 case ARM::VLD4DUPqAsm_32: Spacing = 2; return ARM::VLD4DUPq32;
5598 case ARM::VLD4dWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4d8_UPD;
5599 case ARM::VLD4dWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4d16_UPD;
5600 case ARM::VLD4dWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4d32_UPD;
5601 case ARM::VLD4qWB_fixed_Asm_8: Spacing = 2; return ARM::VLD4q8_UPD;
5602 case ARM::VLD4qWB_fixed_Asm_16: Spacing = 2; return ARM::VLD4q16_UPD;
5603 case ARM::VLD4qWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4q32_UPD;
5604 case ARM::VLD4dWB_register_Asm_8: Spacing = 1; return ARM::VLD4d8_UPD;
5605 case ARM::VLD4dWB_register_Asm_16: Spacing = 1; return ARM::VLD4d16_UPD;
5606 case ARM::VLD4dWB_register_Asm_32: Spacing = 1; return ARM::VLD4d32_UPD;
5607 case ARM::VLD4qWB_register_Asm_8: Spacing = 2; return ARM::VLD4q8_UPD;
5608 case ARM::VLD4qWB_register_Asm_16: Spacing = 2; return ARM::VLD4q16_UPD;
5609 case ARM::VLD4qWB_register_Asm_32: Spacing = 2; return ARM::VLD4q32_UPD;
5610 case ARM::VLD4dAsm_8: Spacing = 1; return ARM::VLD4d8;
5611 case ARM::VLD4dAsm_16: Spacing = 1; return ARM::VLD4d16;
5612 case ARM::VLD4dAsm_32: Spacing = 1; return ARM::VLD4d32;
5613 case ARM::VLD4qAsm_8: Spacing = 2; return ARM::VLD4q8;
5614 case ARM::VLD4qAsm_16: Spacing = 2; return ARM::VLD4q16;
5615 case ARM::VLD4qAsm_32: Spacing = 2; return ARM::VLD4q32;
5620 processInstruction(MCInst &Inst,
5621 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
5622 switch (Inst.getOpcode()) {
5623 // Aliases for alternate PC+imm syntax of LDR instructions.
5624 case ARM::t2LDRpcrel:
5625 Inst.setOpcode(ARM::t2LDRpci);
5627 case ARM::t2LDRBpcrel:
5628 Inst.setOpcode(ARM::t2LDRBpci);
5630 case ARM::t2LDRHpcrel:
5631 Inst.setOpcode(ARM::t2LDRHpci);
5633 case ARM::t2LDRSBpcrel:
5634 Inst.setOpcode(ARM::t2LDRSBpci);
5636 case ARM::t2LDRSHpcrel:
5637 Inst.setOpcode(ARM::t2LDRSHpci);
5639 // Handle NEON VST complex aliases.
5640 case ARM::VST1LNdWB_register_Asm_8:
5641 case ARM::VST1LNdWB_register_Asm_16:
5642 case ARM::VST1LNdWB_register_Asm_32: {
5644 // Shuffle the operands around so the lane index operand is in the
5647 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5648 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5649 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5650 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5651 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5652 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5653 TmpInst.addOperand(Inst.getOperand(1)); // lane
5654 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5655 TmpInst.addOperand(Inst.getOperand(6));
5660 case ARM::VST2LNdWB_register_Asm_8:
5661 case ARM::VST2LNdWB_register_Asm_16:
5662 case ARM::VST2LNdWB_register_Asm_32:
5663 case ARM::VST2LNqWB_register_Asm_16:
5664 case ARM::VST2LNqWB_register_Asm_32: {
5666 // Shuffle the operands around so the lane index operand is in the
5669 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5670 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5671 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5672 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5673 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5674 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5675 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5677 TmpInst.addOperand(Inst.getOperand(1)); // lane
5678 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5679 TmpInst.addOperand(Inst.getOperand(6));
5684 case ARM::VST3LNdWB_register_Asm_8:
5685 case ARM::VST3LNdWB_register_Asm_16:
5686 case ARM::VST3LNdWB_register_Asm_32:
5687 case ARM::VST3LNqWB_register_Asm_16:
5688 case ARM::VST3LNqWB_register_Asm_32: {
5690 // Shuffle the operands around so the lane index operand is in the
5693 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5694 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5695 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5696 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5697 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5698 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5699 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5701 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5703 TmpInst.addOperand(Inst.getOperand(1)); // lane
5704 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5705 TmpInst.addOperand(Inst.getOperand(6));
5710 case ARM::VST4LNdWB_register_Asm_8:
5711 case ARM::VST4LNdWB_register_Asm_16:
5712 case ARM::VST4LNdWB_register_Asm_32:
5713 case ARM::VST4LNqWB_register_Asm_16:
5714 case ARM::VST4LNqWB_register_Asm_32: {
5716 // Shuffle the operands around so the lane index operand is in the
5719 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5720 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5721 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5722 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5723 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5724 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5725 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5727 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5729 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5731 TmpInst.addOperand(Inst.getOperand(1)); // lane
5732 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5733 TmpInst.addOperand(Inst.getOperand(6));
5738 case ARM::VST1LNdWB_fixed_Asm_8:
5739 case ARM::VST1LNdWB_fixed_Asm_16:
5740 case ARM::VST1LNdWB_fixed_Asm_32: {
5742 // Shuffle the operands around so the lane index operand is in the
5745 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5746 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5747 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5748 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5749 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
5750 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5751 TmpInst.addOperand(Inst.getOperand(1)); // lane
5752 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5753 TmpInst.addOperand(Inst.getOperand(5));
5758 case ARM::VST2LNdWB_fixed_Asm_8:
5759 case ARM::VST2LNdWB_fixed_Asm_16:
5760 case ARM::VST2LNdWB_fixed_Asm_32:
5761 case ARM::VST2LNqWB_fixed_Asm_16:
5762 case ARM::VST2LNqWB_fixed_Asm_32: {
5764 // Shuffle the operands around so the lane index operand is in the
5767 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5768 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5769 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5770 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5771 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
5772 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5773 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5775 TmpInst.addOperand(Inst.getOperand(1)); // lane
5776 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5777 TmpInst.addOperand(Inst.getOperand(5));
5782 case ARM::VST3LNdWB_fixed_Asm_8:
5783 case ARM::VST3LNdWB_fixed_Asm_16:
5784 case ARM::VST3LNdWB_fixed_Asm_32:
5785 case ARM::VST3LNqWB_fixed_Asm_16:
5786 case ARM::VST3LNqWB_fixed_Asm_32: {
5788 // Shuffle the operands around so the lane index operand is in the
5791 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5792 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5793 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5794 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5795 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
5796 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5797 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5799 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5801 TmpInst.addOperand(Inst.getOperand(1)); // lane
5802 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5803 TmpInst.addOperand(Inst.getOperand(5));
5808 case ARM::VST4LNdWB_fixed_Asm_8:
5809 case ARM::VST4LNdWB_fixed_Asm_16:
5810 case ARM::VST4LNdWB_fixed_Asm_32:
5811 case ARM::VST4LNqWB_fixed_Asm_16:
5812 case ARM::VST4LNqWB_fixed_Asm_32: {
5814 // Shuffle the operands around so the lane index operand is in the
5817 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5818 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5819 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5820 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5821 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
5822 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5823 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5825 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5827 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5829 TmpInst.addOperand(Inst.getOperand(1)); // lane
5830 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5831 TmpInst.addOperand(Inst.getOperand(5));
5836 case ARM::VST1LNdAsm_8:
5837 case ARM::VST1LNdAsm_16:
5838 case ARM::VST1LNdAsm_32: {
5840 // Shuffle the operands around so the lane index operand is in the
5843 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5844 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5845 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5846 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5847 TmpInst.addOperand(Inst.getOperand(1)); // lane
5848 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5849 TmpInst.addOperand(Inst.getOperand(5));
5854 case ARM::VST2LNdAsm_8:
5855 case ARM::VST2LNdAsm_16:
5856 case ARM::VST2LNdAsm_32:
5857 case ARM::VST2LNqAsm_16:
5858 case ARM::VST2LNqAsm_32: {
5860 // Shuffle the operands around so the lane index operand is in the
5863 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5864 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5865 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5866 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5867 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5869 TmpInst.addOperand(Inst.getOperand(1)); // lane
5870 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5871 TmpInst.addOperand(Inst.getOperand(5));
5876 case ARM::VST3LNdAsm_8:
5877 case ARM::VST3LNdAsm_16:
5878 case ARM::VST3LNdAsm_32:
5879 case ARM::VST3LNqAsm_16:
5880 case ARM::VST3LNqAsm_32: {
5882 // Shuffle the operands around so the lane index operand is in the
5885 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5886 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5887 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5888 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5889 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5891 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5893 TmpInst.addOperand(Inst.getOperand(1)); // lane
5894 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5895 TmpInst.addOperand(Inst.getOperand(5));
5900 case ARM::VST4LNdAsm_8:
5901 case ARM::VST4LNdAsm_16:
5902 case ARM::VST4LNdAsm_32:
5903 case ARM::VST4LNqAsm_16:
5904 case ARM::VST4LNqAsm_32: {
5906 // Shuffle the operands around so the lane index operand is in the
5909 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5910 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5911 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5912 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5913 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5915 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5917 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5919 TmpInst.addOperand(Inst.getOperand(1)); // lane
5920 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5921 TmpInst.addOperand(Inst.getOperand(5));
5926 // Handle NEON VLD complex aliases.
5927 case ARM::VLD1LNdWB_register_Asm_8:
5928 case ARM::VLD1LNdWB_register_Asm_16:
5929 case ARM::VLD1LNdWB_register_Asm_32: {
5931 // Shuffle the operands around so the lane index operand is in the
5934 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
5935 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5936 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5937 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5938 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5939 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5940 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
5941 TmpInst.addOperand(Inst.getOperand(1)); // lane
5942 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5943 TmpInst.addOperand(Inst.getOperand(6));
5948 case ARM::VLD2LNdWB_register_Asm_8:
5949 case ARM::VLD2LNdWB_register_Asm_16:
5950 case ARM::VLD2LNdWB_register_Asm_32:
5951 case ARM::VLD2LNqWB_register_Asm_16:
5952 case ARM::VLD2LNqWB_register_Asm_32: {
5954 // Shuffle the operands around so the lane index operand is in the
5957 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
5958 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5959 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5961 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5962 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5963 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5964 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5965 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
5966 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5968 TmpInst.addOperand(Inst.getOperand(1)); // lane
5969 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5970 TmpInst.addOperand(Inst.getOperand(6));
5975 case ARM::VLD3LNdWB_register_Asm_8:
5976 case ARM::VLD3LNdWB_register_Asm_16:
5977 case ARM::VLD3LNdWB_register_Asm_32:
5978 case ARM::VLD3LNqWB_register_Asm_16:
5979 case ARM::VLD3LNqWB_register_Asm_32: {
5981 // Shuffle the operands around so the lane index operand is in the
5984 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
5985 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5986 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5988 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5990 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5991 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5992 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5993 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5994 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
5995 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5997 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5999 TmpInst.addOperand(Inst.getOperand(1)); // lane
6000 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6001 TmpInst.addOperand(Inst.getOperand(6));
6006 case ARM::VLD4LNdWB_register_Asm_8:
6007 case ARM::VLD4LNdWB_register_Asm_16:
6008 case ARM::VLD4LNdWB_register_Asm_32:
6009 case ARM::VLD4LNqWB_register_Asm_16:
6010 case ARM::VLD4LNqWB_register_Asm_32: {
6012 // Shuffle the operands around so the lane index operand is in the
6015 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6016 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6017 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6019 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6021 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6023 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6024 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6025 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6026 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6027 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6028 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6030 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6032 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6034 TmpInst.addOperand(Inst.getOperand(1)); // lane
6035 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6036 TmpInst.addOperand(Inst.getOperand(6));
6041 case ARM::VLD1LNdWB_fixed_Asm_8:
6042 case ARM::VLD1LNdWB_fixed_Asm_16:
6043 case ARM::VLD1LNdWB_fixed_Asm_32: {
6045 // Shuffle the operands around so the lane index operand is in the
6048 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6049 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6050 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6051 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6052 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6053 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6054 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6055 TmpInst.addOperand(Inst.getOperand(1)); // lane
6056 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6057 TmpInst.addOperand(Inst.getOperand(5));
6062 case ARM::VLD2LNdWB_fixed_Asm_8:
6063 case ARM::VLD2LNdWB_fixed_Asm_16:
6064 case ARM::VLD2LNdWB_fixed_Asm_32:
6065 case ARM::VLD2LNqWB_fixed_Asm_16:
6066 case ARM::VLD2LNqWB_fixed_Asm_32: {
6068 // Shuffle the operands around so the lane index operand is in the
6071 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6072 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6073 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6075 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6076 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6077 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6078 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6079 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6080 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6082 TmpInst.addOperand(Inst.getOperand(1)); // lane
6083 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6084 TmpInst.addOperand(Inst.getOperand(5));
6089 case ARM::VLD3LNdWB_fixed_Asm_8:
6090 case ARM::VLD3LNdWB_fixed_Asm_16:
6091 case ARM::VLD3LNdWB_fixed_Asm_32:
6092 case ARM::VLD3LNqWB_fixed_Asm_16:
6093 case ARM::VLD3LNqWB_fixed_Asm_32: {
6095 // Shuffle the operands around so the lane index operand is in the
6098 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6099 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6100 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6102 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6104 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6105 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6106 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6107 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6108 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6109 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6111 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6113 TmpInst.addOperand(Inst.getOperand(1)); // lane
6114 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6115 TmpInst.addOperand(Inst.getOperand(5));
6120 case ARM::VLD4LNdWB_fixed_Asm_8:
6121 case ARM::VLD4LNdWB_fixed_Asm_16:
6122 case ARM::VLD4LNdWB_fixed_Asm_32:
6123 case ARM::VLD4LNqWB_fixed_Asm_16:
6124 case ARM::VLD4LNqWB_fixed_Asm_32: {
6126 // Shuffle the operands around so the lane index operand is in the
6129 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6130 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6131 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6133 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6135 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6137 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6138 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6139 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6140 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6141 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6142 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6144 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6146 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6148 TmpInst.addOperand(Inst.getOperand(1)); // lane
6149 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6150 TmpInst.addOperand(Inst.getOperand(5));
6155 case ARM::VLD1LNdAsm_8:
6156 case ARM::VLD1LNdAsm_16:
6157 case ARM::VLD1LNdAsm_32: {
6159 // Shuffle the operands around so the lane index operand is in the
6162 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6163 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6164 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6165 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6166 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6167 TmpInst.addOperand(Inst.getOperand(1)); // lane
6168 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6169 TmpInst.addOperand(Inst.getOperand(5));
6174 case ARM::VLD2LNdAsm_8:
6175 case ARM::VLD2LNdAsm_16:
6176 case ARM::VLD2LNdAsm_32:
6177 case ARM::VLD2LNqAsm_16:
6178 case ARM::VLD2LNqAsm_32: {
6180 // Shuffle the operands around so the lane index operand is in the
6183 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6184 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6185 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6187 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6188 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6189 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6190 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6192 TmpInst.addOperand(Inst.getOperand(1)); // lane
6193 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6194 TmpInst.addOperand(Inst.getOperand(5));
6199 case ARM::VLD3LNdAsm_8:
6200 case ARM::VLD3LNdAsm_16:
6201 case ARM::VLD3LNdAsm_32:
6202 case ARM::VLD3LNqAsm_16:
6203 case ARM::VLD3LNqAsm_32: {
6205 // Shuffle the operands around so the lane index operand is in the
6208 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6209 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6210 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6212 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6214 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6215 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6216 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6217 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6219 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6221 TmpInst.addOperand(Inst.getOperand(1)); // lane
6222 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6223 TmpInst.addOperand(Inst.getOperand(5));
6228 case ARM::VLD4LNdAsm_8:
6229 case ARM::VLD4LNdAsm_16:
6230 case ARM::VLD4LNdAsm_32:
6231 case ARM::VLD4LNqAsm_16:
6232 case ARM::VLD4LNqAsm_32: {
6234 // Shuffle the operands around so the lane index operand is in the
6237 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6238 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6239 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6241 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6243 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6245 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6246 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6247 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6248 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6250 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6252 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6254 TmpInst.addOperand(Inst.getOperand(1)); // lane
6255 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6256 TmpInst.addOperand(Inst.getOperand(5));
6261 // VLD3DUP single 3-element structure to all lanes instructions.
6262 case ARM::VLD3DUPdAsm_8:
6263 case ARM::VLD3DUPdAsm_16:
6264 case ARM::VLD3DUPdAsm_32:
6265 case ARM::VLD3DUPqAsm_8:
6266 case ARM::VLD3DUPqAsm_16:
6267 case ARM::VLD3DUPqAsm_32: {
6270 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6271 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6272 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6274 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6276 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6277 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6278 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6279 TmpInst.addOperand(Inst.getOperand(4));
6284 case ARM::VLD3DUPdWB_fixed_Asm_8:
6285 case ARM::VLD3DUPdWB_fixed_Asm_16:
6286 case ARM::VLD3DUPdWB_fixed_Asm_32:
6287 case ARM::VLD3DUPqWB_fixed_Asm_8:
6288 case ARM::VLD3DUPqWB_fixed_Asm_16:
6289 case ARM::VLD3DUPqWB_fixed_Asm_32: {
6292 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6293 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6294 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6296 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6298 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6299 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6300 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6301 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6302 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6303 TmpInst.addOperand(Inst.getOperand(4));
6308 case ARM::VLD3DUPdWB_register_Asm_8:
6309 case ARM::VLD3DUPdWB_register_Asm_16:
6310 case ARM::VLD3DUPdWB_register_Asm_32:
6311 case ARM::VLD3DUPqWB_register_Asm_8:
6312 case ARM::VLD3DUPqWB_register_Asm_16:
6313 case ARM::VLD3DUPqWB_register_Asm_32: {
6316 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6317 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6318 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6320 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6322 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6323 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6324 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6325 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6326 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6327 TmpInst.addOperand(Inst.getOperand(5));
6332 // VLD3 multiple 3-element structure instructions.
6333 case ARM::VLD3dAsm_8:
6334 case ARM::VLD3dAsm_16:
6335 case ARM::VLD3dAsm_32:
6336 case ARM::VLD3qAsm_8:
6337 case ARM::VLD3qAsm_16:
6338 case ARM::VLD3qAsm_32: {
6341 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6342 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6343 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6345 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6347 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6348 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6349 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6350 TmpInst.addOperand(Inst.getOperand(4));
6355 case ARM::VLD3dWB_fixed_Asm_8:
6356 case ARM::VLD3dWB_fixed_Asm_16:
6357 case ARM::VLD3dWB_fixed_Asm_32:
6358 case ARM::VLD3qWB_fixed_Asm_8:
6359 case ARM::VLD3qWB_fixed_Asm_16:
6360 case ARM::VLD3qWB_fixed_Asm_32: {
6363 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6364 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6365 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6367 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6369 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6370 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6371 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6372 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6373 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6374 TmpInst.addOperand(Inst.getOperand(4));
6379 case ARM::VLD3dWB_register_Asm_8:
6380 case ARM::VLD3dWB_register_Asm_16:
6381 case ARM::VLD3dWB_register_Asm_32:
6382 case ARM::VLD3qWB_register_Asm_8:
6383 case ARM::VLD3qWB_register_Asm_16:
6384 case ARM::VLD3qWB_register_Asm_32: {
6387 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6388 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6389 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6391 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6393 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6394 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6395 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6396 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6397 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6398 TmpInst.addOperand(Inst.getOperand(5));
6403 // VLD4DUP single 3-element structure to all lanes instructions.
6404 case ARM::VLD4DUPdAsm_8:
6405 case ARM::VLD4DUPdAsm_16:
6406 case ARM::VLD4DUPdAsm_32:
6407 case ARM::VLD4DUPqAsm_8:
6408 case ARM::VLD4DUPqAsm_16:
6409 case ARM::VLD4DUPqAsm_32: {
6412 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6413 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6414 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6416 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6418 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6420 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6421 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6422 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6423 TmpInst.addOperand(Inst.getOperand(4));
6428 case ARM::VLD4DUPdWB_fixed_Asm_8:
6429 case ARM::VLD4DUPdWB_fixed_Asm_16:
6430 case ARM::VLD4DUPdWB_fixed_Asm_32:
6431 case ARM::VLD4DUPqWB_fixed_Asm_8:
6432 case ARM::VLD4DUPqWB_fixed_Asm_16:
6433 case ARM::VLD4DUPqWB_fixed_Asm_32: {
6436 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6437 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6438 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6440 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6442 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6444 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6445 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6446 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6447 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6448 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6449 TmpInst.addOperand(Inst.getOperand(4));
6454 case ARM::VLD4DUPdWB_register_Asm_8:
6455 case ARM::VLD4DUPdWB_register_Asm_16:
6456 case ARM::VLD4DUPdWB_register_Asm_32:
6457 case ARM::VLD4DUPqWB_register_Asm_8:
6458 case ARM::VLD4DUPqWB_register_Asm_16:
6459 case ARM::VLD4DUPqWB_register_Asm_32: {
6462 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6463 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6464 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6466 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6468 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6470 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6471 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6472 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6473 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6474 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6475 TmpInst.addOperand(Inst.getOperand(5));
6480 // VLD4 multiple 4-element structure instructions.
6481 case ARM::VLD4dAsm_8:
6482 case ARM::VLD4dAsm_16:
6483 case ARM::VLD4dAsm_32:
6484 case ARM::VLD4qAsm_8:
6485 case ARM::VLD4qAsm_16:
6486 case ARM::VLD4qAsm_32: {
6489 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6490 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6491 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6493 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6495 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6497 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6498 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6499 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6500 TmpInst.addOperand(Inst.getOperand(4));
6505 case ARM::VLD4dWB_fixed_Asm_8:
6506 case ARM::VLD4dWB_fixed_Asm_16:
6507 case ARM::VLD4dWB_fixed_Asm_32:
6508 case ARM::VLD4qWB_fixed_Asm_8:
6509 case ARM::VLD4qWB_fixed_Asm_16:
6510 case ARM::VLD4qWB_fixed_Asm_32: {
6513 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6514 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6515 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6517 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6519 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6521 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6522 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6523 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6524 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6525 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6526 TmpInst.addOperand(Inst.getOperand(4));
6531 case ARM::VLD4dWB_register_Asm_8:
6532 case ARM::VLD4dWB_register_Asm_16:
6533 case ARM::VLD4dWB_register_Asm_32:
6534 case ARM::VLD4qWB_register_Asm_8:
6535 case ARM::VLD4qWB_register_Asm_16:
6536 case ARM::VLD4qWB_register_Asm_32: {
6539 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6540 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6541 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6543 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6545 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6547 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6548 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6549 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6550 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6551 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6552 TmpInst.addOperand(Inst.getOperand(5));
6557 // VST3 multiple 3-element structure instructions.
6558 case ARM::VST3dAsm_8:
6559 case ARM::VST3dAsm_16:
6560 case ARM::VST3dAsm_32:
6561 case ARM::VST3qAsm_8:
6562 case ARM::VST3qAsm_16:
6563 case ARM::VST3qAsm_32: {
6566 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6567 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6568 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6569 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6570 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6572 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6574 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6575 TmpInst.addOperand(Inst.getOperand(4));
6580 case ARM::VST3dWB_fixed_Asm_8:
6581 case ARM::VST3dWB_fixed_Asm_16:
6582 case ARM::VST3dWB_fixed_Asm_32:
6583 case ARM::VST3qWB_fixed_Asm_8:
6584 case ARM::VST3qWB_fixed_Asm_16:
6585 case ARM::VST3qWB_fixed_Asm_32: {
6588 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6589 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6590 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6591 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6592 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6593 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6594 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6596 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6598 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6599 TmpInst.addOperand(Inst.getOperand(4));
6604 case ARM::VST3dWB_register_Asm_8:
6605 case ARM::VST3dWB_register_Asm_16:
6606 case ARM::VST3dWB_register_Asm_32:
6607 case ARM::VST3qWB_register_Asm_8:
6608 case ARM::VST3qWB_register_Asm_16:
6609 case ARM::VST3qWB_register_Asm_32: {
6612 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6613 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6614 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6615 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6616 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6617 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6618 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6620 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6622 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6623 TmpInst.addOperand(Inst.getOperand(5));
6628 // VST4 multiple 3-element structure instructions.
6629 case ARM::VST4dAsm_8:
6630 case ARM::VST4dAsm_16:
6631 case ARM::VST4dAsm_32:
6632 case ARM::VST4qAsm_8:
6633 case ARM::VST4qAsm_16:
6634 case ARM::VST4qAsm_32: {
6637 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6638 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6639 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6640 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6641 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6643 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6645 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6647 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6648 TmpInst.addOperand(Inst.getOperand(4));
6653 case ARM::VST4dWB_fixed_Asm_8:
6654 case ARM::VST4dWB_fixed_Asm_16:
6655 case ARM::VST4dWB_fixed_Asm_32:
6656 case ARM::VST4qWB_fixed_Asm_8:
6657 case ARM::VST4qWB_fixed_Asm_16:
6658 case ARM::VST4qWB_fixed_Asm_32: {
6661 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6662 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6663 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6664 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6665 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6666 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6667 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6669 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6671 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6673 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6674 TmpInst.addOperand(Inst.getOperand(4));
6679 case ARM::VST4dWB_register_Asm_8:
6680 case ARM::VST4dWB_register_Asm_16:
6681 case ARM::VST4dWB_register_Asm_32:
6682 case ARM::VST4qWB_register_Asm_8:
6683 case ARM::VST4qWB_register_Asm_16:
6684 case ARM::VST4qWB_register_Asm_32: {
6687 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6688 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6689 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6690 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6691 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6692 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6693 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6695 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6697 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6699 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6700 TmpInst.addOperand(Inst.getOperand(5));
6705 // Handle encoding choice for the shift-immediate instructions.
6708 case ARM::t2ASRri: {
6709 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
6710 Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
6711 Inst.getOperand(5).getReg() == (inITBlock() ? 0 : ARM::CPSR) &&
6712 !(static_cast<ARMOperand*>(Operands[3])->isToken() &&
6713 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w")) {
6715 switch (Inst.getOpcode()) {
6716 default: llvm_unreachable("unexpected opcode");
6717 case ARM::t2LSLri: NewOpc = ARM::tLSLri; break;
6718 case ARM::t2LSRri: NewOpc = ARM::tLSRri; break;
6719 case ARM::t2ASRri: NewOpc = ARM::tASRri; break;
6721 // The Thumb1 operands aren't in the same order. Awesome, eh?
6723 TmpInst.setOpcode(NewOpc);
6724 TmpInst.addOperand(Inst.getOperand(0));
6725 TmpInst.addOperand(Inst.getOperand(5));
6726 TmpInst.addOperand(Inst.getOperand(1));
6727 TmpInst.addOperand(Inst.getOperand(2));
6728 TmpInst.addOperand(Inst.getOperand(3));
6729 TmpInst.addOperand(Inst.getOperand(4));
6736 // Handle the Thumb2 mode MOV complex aliases.
6738 case ARM::t2MOVSsr: {
6739 // Which instruction to expand to depends on the CCOut operand and
6740 // whether we're in an IT block if the register operands are low
6742 bool isNarrow = false;
6743 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
6744 isARMLowRegister(Inst.getOperand(1).getReg()) &&
6745 isARMLowRegister(Inst.getOperand(2).getReg()) &&
6746 Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
6747 inITBlock() == (Inst.getOpcode() == ARM::t2MOVsr))
6751 switch(ARM_AM::getSORegShOp(Inst.getOperand(3).getImm())) {
6752 default: llvm_unreachable("unexpected opcode!");
6753 case ARM_AM::asr: newOpc = isNarrow ? ARM::tASRrr : ARM::t2ASRrr; break;
6754 case ARM_AM::lsr: newOpc = isNarrow ? ARM::tLSRrr : ARM::t2LSRrr; break;
6755 case ARM_AM::lsl: newOpc = isNarrow ? ARM::tLSLrr : ARM::t2LSLrr; break;
6756 case ARM_AM::ror: newOpc = isNarrow ? ARM::tROR : ARM::t2RORrr; break;
6758 TmpInst.setOpcode(newOpc);
6759 TmpInst.addOperand(Inst.getOperand(0)); // Rd
6761 TmpInst.addOperand(MCOperand::CreateReg(
6762 Inst.getOpcode() == ARM::t2MOVSsr ? ARM::CPSR : 0));
6763 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6764 TmpInst.addOperand(Inst.getOperand(2)); // Rm
6765 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6766 TmpInst.addOperand(Inst.getOperand(5));
6768 TmpInst.addOperand(MCOperand::CreateReg(
6769 Inst.getOpcode() == ARM::t2MOVSsr ? ARM::CPSR : 0));
6774 case ARM::t2MOVSsi: {
6775 // Which instruction to expand to depends on the CCOut operand and
6776 // whether we're in an IT block if the register operands are low
6778 bool isNarrow = false;
6779 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
6780 isARMLowRegister(Inst.getOperand(1).getReg()) &&
6781 inITBlock() == (Inst.getOpcode() == ARM::t2MOVsi))
6785 switch(ARM_AM::getSORegShOp(Inst.getOperand(2).getImm())) {
6786 default: llvm_unreachable("unexpected opcode!");
6787 case ARM_AM::asr: newOpc = isNarrow ? ARM::tASRri : ARM::t2ASRri; break;
6788 case ARM_AM::lsr: newOpc = isNarrow ? ARM::tLSRri : ARM::t2LSRri; break;
6789 case ARM_AM::lsl: newOpc = isNarrow ? ARM::tLSLri : ARM::t2LSLri; break;
6790 case ARM_AM::ror: newOpc = ARM::t2RORri; isNarrow = false; break;
6791 case ARM_AM::rrx: isNarrow = false; newOpc = ARM::t2RRX; break;
6793 unsigned Amount = ARM_AM::getSORegOffset(Inst.getOperand(2).getImm());
6794 if (Amount == 32) Amount = 0;
6795 TmpInst.setOpcode(newOpc);
6796 TmpInst.addOperand(Inst.getOperand(0)); // Rd
6798 TmpInst.addOperand(MCOperand::CreateReg(
6799 Inst.getOpcode() == ARM::t2MOVSsi ? ARM::CPSR : 0));
6800 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6801 if (newOpc != ARM::t2RRX)
6802 TmpInst.addOperand(MCOperand::CreateImm(Amount));
6803 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6804 TmpInst.addOperand(Inst.getOperand(4));
6806 TmpInst.addOperand(MCOperand::CreateReg(
6807 Inst.getOpcode() == ARM::t2MOVSsi ? ARM::CPSR : 0));
6811 // Handle the ARM mode MOV complex aliases.
6816 ARM_AM::ShiftOpc ShiftTy;
6817 switch(Inst.getOpcode()) {
6818 default: llvm_unreachable("unexpected opcode!");
6819 case ARM::ASRr: ShiftTy = ARM_AM::asr; break;
6820 case ARM::LSRr: ShiftTy = ARM_AM::lsr; break;
6821 case ARM::LSLr: ShiftTy = ARM_AM::lsl; break;
6822 case ARM::RORr: ShiftTy = ARM_AM::ror; break;
6824 unsigned Shifter = ARM_AM::getSORegOpc(ShiftTy, 0);
6826 TmpInst.setOpcode(ARM::MOVsr);
6827 TmpInst.addOperand(Inst.getOperand(0)); // Rd
6828 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6829 TmpInst.addOperand(Inst.getOperand(2)); // Rm
6830 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
6831 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6832 TmpInst.addOperand(Inst.getOperand(4));
6833 TmpInst.addOperand(Inst.getOperand(5)); // cc_out
6841 ARM_AM::ShiftOpc ShiftTy;
6842 switch(Inst.getOpcode()) {
6843 default: llvm_unreachable("unexpected opcode!");
6844 case ARM::ASRi: ShiftTy = ARM_AM::asr; break;
6845 case ARM::LSRi: ShiftTy = ARM_AM::lsr; break;
6846 case ARM::LSLi: ShiftTy = ARM_AM::lsl; break;
6847 case ARM::RORi: ShiftTy = ARM_AM::ror; break;
6849 // A shift by zero is a plain MOVr, not a MOVsi.
6850 unsigned Amt = Inst.getOperand(2).getImm();
6851 unsigned Opc = Amt == 0 ? ARM::MOVr : ARM::MOVsi;
6852 // A shift by 32 should be encoded as 0 when permitted
6853 if (Amt == 32 && (ShiftTy == ARM_AM::lsr || ShiftTy == ARM_AM::asr))
6855 unsigned Shifter = ARM_AM::getSORegOpc(ShiftTy, Amt);
6857 TmpInst.setOpcode(Opc);
6858 TmpInst.addOperand(Inst.getOperand(0)); // Rd
6859 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6860 if (Opc == ARM::MOVsi)
6861 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
6862 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6863 TmpInst.addOperand(Inst.getOperand(4));
6864 TmpInst.addOperand(Inst.getOperand(5)); // cc_out
6869 unsigned Shifter = ARM_AM::getSORegOpc(ARM_AM::rrx, 0);
6871 TmpInst.setOpcode(ARM::MOVsi);
6872 TmpInst.addOperand(Inst.getOperand(0)); // Rd
6873 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6874 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
6875 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
6876 TmpInst.addOperand(Inst.getOperand(3));
6877 TmpInst.addOperand(Inst.getOperand(4)); // cc_out
6881 case ARM::t2LDMIA_UPD: {
6882 // If this is a load of a single register, then we should use
6883 // a post-indexed LDR instruction instead, per the ARM ARM.
6884 if (Inst.getNumOperands() != 5)
6887 TmpInst.setOpcode(ARM::t2LDR_POST);
6888 TmpInst.addOperand(Inst.getOperand(4)); // Rt
6889 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
6890 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6891 TmpInst.addOperand(MCOperand::CreateImm(4));
6892 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
6893 TmpInst.addOperand(Inst.getOperand(3));
6897 case ARM::t2STMDB_UPD: {
6898 // If this is a store of a single register, then we should use
6899 // a pre-indexed STR instruction instead, per the ARM ARM.
6900 if (Inst.getNumOperands() != 5)
6903 TmpInst.setOpcode(ARM::t2STR_PRE);
6904 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
6905 TmpInst.addOperand(Inst.getOperand(4)); // Rt
6906 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6907 TmpInst.addOperand(MCOperand::CreateImm(-4));
6908 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
6909 TmpInst.addOperand(Inst.getOperand(3));
6913 case ARM::LDMIA_UPD:
6914 // If this is a load of a single register via a 'pop', then we should use
6915 // a post-indexed LDR instruction instead, per the ARM ARM.
6916 if (static_cast<ARMOperand*>(Operands[0])->getToken() == "pop" &&
6917 Inst.getNumOperands() == 5) {
6919 TmpInst.setOpcode(ARM::LDR_POST_IMM);
6920 TmpInst.addOperand(Inst.getOperand(4)); // Rt
6921 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
6922 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6923 TmpInst.addOperand(MCOperand::CreateReg(0)); // am2offset
6924 TmpInst.addOperand(MCOperand::CreateImm(4));
6925 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
6926 TmpInst.addOperand(Inst.getOperand(3));
6931 case ARM::STMDB_UPD:
6932 // If this is a store of a single register via a 'push', then we should use
6933 // a pre-indexed STR instruction instead, per the ARM ARM.
6934 if (static_cast<ARMOperand*>(Operands[0])->getToken() == "push" &&
6935 Inst.getNumOperands() == 5) {
6937 TmpInst.setOpcode(ARM::STR_PRE_IMM);
6938 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
6939 TmpInst.addOperand(Inst.getOperand(4)); // Rt
6940 TmpInst.addOperand(Inst.getOperand(1)); // addrmode_imm12
6941 TmpInst.addOperand(MCOperand::CreateImm(-4));
6942 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
6943 TmpInst.addOperand(Inst.getOperand(3));
6947 case ARM::t2ADDri12:
6948 // If the immediate fits for encoding T3 (t2ADDri) and the generic "add"
6949 // mnemonic was used (not "addw"), encoding T3 is preferred.
6950 if (static_cast<ARMOperand*>(Operands[0])->getToken() != "add" ||
6951 ARM_AM::getT2SOImmVal(Inst.getOperand(2).getImm()) == -1)
6953 Inst.setOpcode(ARM::t2ADDri);
6954 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
6956 case ARM::t2SUBri12:
6957 // If the immediate fits for encoding T3 (t2SUBri) and the generic "sub"
6958 // mnemonic was used (not "subw"), encoding T3 is preferred.
6959 if (static_cast<ARMOperand*>(Operands[0])->getToken() != "sub" ||
6960 ARM_AM::getT2SOImmVal(Inst.getOperand(2).getImm()) == -1)
6962 Inst.setOpcode(ARM::t2SUBri);
6963 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
6966 // If the immediate is in the range 0-7, we want tADDi3 iff Rd was
6967 // explicitly specified. From the ARM ARM: "Encoding T1 is preferred
6968 // to encoding T2 if <Rd> is specified and encoding T2 is preferred
6969 // to encoding T1 if <Rd> is omitted."
6970 if ((unsigned)Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
6971 Inst.setOpcode(ARM::tADDi3);
6976 // If the immediate is in the range 0-7, we want tADDi3 iff Rd was
6977 // explicitly specified. From the ARM ARM: "Encoding T1 is preferred
6978 // to encoding T2 if <Rd> is specified and encoding T2 is preferred
6979 // to encoding T1 if <Rd> is omitted."
6980 if ((unsigned)Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
6981 Inst.setOpcode(ARM::tSUBi3);
6986 case ARM::t2SUBri: {
6987 // If the destination and first source operand are the same, and
6988 // the flags are compatible with the current IT status, use encoding T2
6989 // instead of T3. For compatibility with the system 'as'. Make sure the
6990 // wide encoding wasn't explicit.
6991 if (Inst.getOperand(0).getReg() != Inst.getOperand(1).getReg() ||
6992 !isARMLowRegister(Inst.getOperand(0).getReg()) ||
6993 (unsigned)Inst.getOperand(2).getImm() > 255 ||
6994 ((!inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR) ||
6995 (inITBlock() && Inst.getOperand(5).getReg() != 0)) ||
6996 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
6997 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w"))
7000 TmpInst.setOpcode(Inst.getOpcode() == ARM::t2ADDri ?
7001 ARM::tADDi8 : ARM::tSUBi8);
7002 TmpInst.addOperand(Inst.getOperand(0));
7003 TmpInst.addOperand(Inst.getOperand(5));
7004 TmpInst.addOperand(Inst.getOperand(0));
7005 TmpInst.addOperand(Inst.getOperand(2));
7006 TmpInst.addOperand(Inst.getOperand(3));
7007 TmpInst.addOperand(Inst.getOperand(4));
7011 case ARM::t2ADDrr: {
7012 // If the destination and first source operand are the same, and
7013 // there's no setting of the flags, use encoding T2 instead of T3.
7014 // Note that this is only for ADD, not SUB. This mirrors the system
7015 // 'as' behaviour. Make sure the wide encoding wasn't explicit.
7016 if (Inst.getOperand(0).getReg() != Inst.getOperand(1).getReg() ||
7017 Inst.getOperand(5).getReg() != 0 ||
7018 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
7019 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w"))
7022 TmpInst.setOpcode(ARM::tADDhirr);
7023 TmpInst.addOperand(Inst.getOperand(0));
7024 TmpInst.addOperand(Inst.getOperand(0));
7025 TmpInst.addOperand(Inst.getOperand(2));
7026 TmpInst.addOperand(Inst.getOperand(3));
7027 TmpInst.addOperand(Inst.getOperand(4));
7031 case ARM::tADDrSP: {
7032 // If the non-SP source operand and the destination operand are not the
7033 // same, we need to use the 32-bit encoding if it's available.
7034 if (Inst.getOperand(0).getReg() != Inst.getOperand(2).getReg()) {
7035 Inst.setOpcode(ARM::t2ADDrr);
7036 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
7042 // A Thumb conditional branch outside of an IT block is a tBcc.
7043 if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()) {
7044 Inst.setOpcode(ARM::tBcc);
7049 // A Thumb2 conditional branch outside of an IT block is a t2Bcc.
7050 if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()){
7051 Inst.setOpcode(ARM::t2Bcc);
7056 // If the conditional is AL or we're in an IT block, we really want t2B.
7057 if (Inst.getOperand(1).getImm() == ARMCC::AL || inITBlock()) {
7058 Inst.setOpcode(ARM::t2B);
7063 // If the conditional is AL, we really want tB.
7064 if (Inst.getOperand(1).getImm() == ARMCC::AL) {
7065 Inst.setOpcode(ARM::tB);
7070 // If the register list contains any high registers, or if the writeback
7071 // doesn't match what tLDMIA can do, we need to use the 32-bit encoding
7072 // instead if we're in Thumb2. Otherwise, this should have generated
7073 // an error in validateInstruction().
7074 unsigned Rn = Inst.getOperand(0).getReg();
7075 bool hasWritebackToken =
7076 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
7077 static_cast<ARMOperand*>(Operands[3])->getToken() == "!");
7078 bool listContainsBase;
7079 if (checkLowRegisterList(Inst, 3, Rn, 0, listContainsBase) ||
7080 (!listContainsBase && !hasWritebackToken) ||
7081 (listContainsBase && hasWritebackToken)) {
7082 // 16-bit encoding isn't sufficient. Switch to the 32-bit version.
7083 assert (isThumbTwo());
7084 Inst.setOpcode(hasWritebackToken ? ARM::t2LDMIA_UPD : ARM::t2LDMIA);
7085 // If we're switching to the updating version, we need to insert
7086 // the writeback tied operand.
7087 if (hasWritebackToken)
7088 Inst.insert(Inst.begin(),
7089 MCOperand::CreateReg(Inst.getOperand(0).getReg()));
7094 case ARM::tSTMIA_UPD: {
7095 // If the register list contains any high registers, we need to use
7096 // the 32-bit encoding instead if we're in Thumb2. Otherwise, this
7097 // should have generated an error in validateInstruction().
7098 unsigned Rn = Inst.getOperand(0).getReg();
7099 bool listContainsBase;
7100 if (checkLowRegisterList(Inst, 4, Rn, 0, listContainsBase)) {
7101 // 16-bit encoding isn't sufficient. Switch to the 32-bit version.
7102 assert (isThumbTwo());
7103 Inst.setOpcode(ARM::t2STMIA_UPD);
7109 bool listContainsBase;
7110 // If the register list contains any high registers, we need to use
7111 // the 32-bit encoding instead if we're in Thumb2. Otherwise, this
7112 // should have generated an error in validateInstruction().
7113 if (!checkLowRegisterList(Inst, 2, 0, ARM::PC, listContainsBase))
7115 assert (isThumbTwo());
7116 Inst.setOpcode(ARM::t2LDMIA_UPD);
7117 // Add the base register and writeback operands.
7118 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7119 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7123 bool listContainsBase;
7124 if (!checkLowRegisterList(Inst, 2, 0, ARM::LR, listContainsBase))
7126 assert (isThumbTwo());
7127 Inst.setOpcode(ARM::t2STMDB_UPD);
7128 // Add the base register and writeback operands.
7129 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7130 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7134 // If we can use the 16-bit encoding and the user didn't explicitly
7135 // request the 32-bit variant, transform it here.
7136 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7137 (unsigned)Inst.getOperand(1).getImm() <= 255 &&
7138 ((!inITBlock() && Inst.getOperand(2).getImm() == ARMCC::AL &&
7139 Inst.getOperand(4).getReg() == ARM::CPSR) ||
7140 (inITBlock() && Inst.getOperand(4).getReg() == 0)) &&
7141 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7142 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7143 // The operands aren't in the same order for tMOVi8...
7145 TmpInst.setOpcode(ARM::tMOVi8);
7146 TmpInst.addOperand(Inst.getOperand(0));
7147 TmpInst.addOperand(Inst.getOperand(4));
7148 TmpInst.addOperand(Inst.getOperand(1));
7149 TmpInst.addOperand(Inst.getOperand(2));
7150 TmpInst.addOperand(Inst.getOperand(3));
7157 // If we can use the 16-bit encoding and the user didn't explicitly
7158 // request the 32-bit variant, transform it here.
7159 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7160 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7161 Inst.getOperand(2).getImm() == ARMCC::AL &&
7162 Inst.getOperand(4).getReg() == ARM::CPSR &&
7163 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7164 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7165 // The operands aren't the same for tMOV[S]r... (no cc_out)
7167 TmpInst.setOpcode(Inst.getOperand(4).getReg() ? ARM::tMOVSr : ARM::tMOVr);
7168 TmpInst.addOperand(Inst.getOperand(0));
7169 TmpInst.addOperand(Inst.getOperand(1));
7170 TmpInst.addOperand(Inst.getOperand(2));
7171 TmpInst.addOperand(Inst.getOperand(3));
7181 // If we can use the 16-bit encoding and the user didn't explicitly
7182 // request the 32-bit variant, transform it here.
7183 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7184 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7185 Inst.getOperand(2).getImm() == 0 &&
7186 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7187 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7189 switch (Inst.getOpcode()) {
7190 default: llvm_unreachable("Illegal opcode!");
7191 case ARM::t2SXTH: NewOpc = ARM::tSXTH; break;
7192 case ARM::t2SXTB: NewOpc = ARM::tSXTB; break;
7193 case ARM::t2UXTH: NewOpc = ARM::tUXTH; break;
7194 case ARM::t2UXTB: NewOpc = ARM::tUXTB; break;
7196 // The operands aren't the same for thumb1 (no rotate operand).
7198 TmpInst.setOpcode(NewOpc);
7199 TmpInst.addOperand(Inst.getOperand(0));
7200 TmpInst.addOperand(Inst.getOperand(1));
7201 TmpInst.addOperand(Inst.getOperand(3));
7202 TmpInst.addOperand(Inst.getOperand(4));
7209 ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(Inst.getOperand(2).getImm());
7210 // rrx shifts and asr/lsr of #32 is encoded as 0
7211 if (SOpc == ARM_AM::rrx || SOpc == ARM_AM::asr || SOpc == ARM_AM::lsr)
7213 if (ARM_AM::getSORegOffset(Inst.getOperand(2).getImm()) == 0) {
7214 // Shifting by zero is accepted as a vanilla 'MOVr'
7216 TmpInst.setOpcode(ARM::MOVr);
7217 TmpInst.addOperand(Inst.getOperand(0));
7218 TmpInst.addOperand(Inst.getOperand(1));
7219 TmpInst.addOperand(Inst.getOperand(3));
7220 TmpInst.addOperand(Inst.getOperand(4));
7221 TmpInst.addOperand(Inst.getOperand(5));
7234 ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(Inst.getOperand(3).getImm());
7235 if (SOpc == ARM_AM::rrx) return false;
7236 switch (Inst.getOpcode()) {
7237 default: llvm_unreachable("unexpected opcode!");
7238 case ARM::ANDrsi: newOpc = ARM::ANDrr; break;
7239 case ARM::ORRrsi: newOpc = ARM::ORRrr; break;
7240 case ARM::EORrsi: newOpc = ARM::EORrr; break;
7241 case ARM::BICrsi: newOpc = ARM::BICrr; break;
7242 case ARM::SUBrsi: newOpc = ARM::SUBrr; break;
7243 case ARM::ADDrsi: newOpc = ARM::ADDrr; break;
7245 // If the shift is by zero, use the non-shifted instruction definition.
7246 if (ARM_AM::getSORegOffset(Inst.getOperand(3).getImm()) == 0) {
7248 TmpInst.setOpcode(newOpc);
7249 TmpInst.addOperand(Inst.getOperand(0));
7250 TmpInst.addOperand(Inst.getOperand(1));
7251 TmpInst.addOperand(Inst.getOperand(2));
7252 TmpInst.addOperand(Inst.getOperand(4));
7253 TmpInst.addOperand(Inst.getOperand(5));
7254 TmpInst.addOperand(Inst.getOperand(6));
7262 // The mask bits for all but the first condition are represented as
7263 // the low bit of the condition code value implies 't'. We currently
7264 // always have 1 implies 't', so XOR toggle the bits if the low bit
7265 // of the condition code is zero.
7266 MCOperand &MO = Inst.getOperand(1);
7267 unsigned Mask = MO.getImm();
7268 unsigned OrigMask = Mask;
7269 unsigned TZ = CountTrailingZeros_32(Mask);
7270 if ((Inst.getOperand(0).getImm() & 1) == 0) {
7271 assert(Mask && TZ <= 3 && "illegal IT mask value!");
7272 for (unsigned i = 3; i != TZ; --i)
7277 // Set up the IT block state according to the IT instruction we just
7279 assert(!inITBlock() && "nested IT blocks?!");
7280 ITState.Cond = ARMCC::CondCodes(Inst.getOperand(0).getImm());
7281 ITState.Mask = OrigMask; // Use the original mask, not the updated one.
7282 ITState.CurPosition = 0;
7283 ITState.FirstCond = true;
7290 unsigned ARMAsmParser::checkTargetMatchPredicate(MCInst &Inst) {
7291 // 16-bit thumb arithmetic instructions either require or preclude the 'S'
7292 // suffix depending on whether they're in an IT block or not.
7293 unsigned Opc = Inst.getOpcode();
7294 const MCInstrDesc &MCID = getInstDesc(Opc);
7295 if (MCID.TSFlags & ARMII::ThumbArithFlagSetting) {
7296 assert(MCID.hasOptionalDef() &&
7297 "optionally flag setting instruction missing optional def operand");
7298 assert(MCID.NumOperands == Inst.getNumOperands() &&
7299 "operand count mismatch!");
7300 // Find the optional-def operand (cc_out).
7303 !MCID.OpInfo[OpNo].isOptionalDef() && OpNo < MCID.NumOperands;
7306 // If we're parsing Thumb1, reject it completely.
7307 if (isThumbOne() && Inst.getOperand(OpNo).getReg() != ARM::CPSR)
7308 return Match_MnemonicFail;
7309 // If we're parsing Thumb2, which form is legal depends on whether we're
7311 if (isThumbTwo() && Inst.getOperand(OpNo).getReg() != ARM::CPSR &&
7313 return Match_RequiresITBlock;
7314 if (isThumbTwo() && Inst.getOperand(OpNo).getReg() == ARM::CPSR &&
7316 return Match_RequiresNotITBlock;
7318 // Some high-register supporting Thumb1 encodings only allow both registers
7319 // to be from r0-r7 when in Thumb2.
7320 else if (Opc == ARM::tADDhirr && isThumbOne() &&
7321 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7322 isARMLowRegister(Inst.getOperand(2).getReg()))
7323 return Match_RequiresThumb2;
7324 // Others only require ARMv6 or later.
7325 else if (Opc == ARM::tMOVr && isThumbOne() && !hasV6Ops() &&
7326 isARMLowRegister(Inst.getOperand(0).getReg()) &&
7327 isARMLowRegister(Inst.getOperand(1).getReg()))
7328 return Match_RequiresV6;
7329 return Match_Success;
7332 static const char *getSubtargetFeatureName(unsigned Val);
7334 MatchAndEmitInstruction(SMLoc IDLoc,
7335 SmallVectorImpl<MCParsedAsmOperand*> &Operands,
7339 unsigned MatchResult;
7340 MatchResult = MatchInstructionImpl(Operands, Inst, ErrorInfo);
7341 switch (MatchResult) {
7344 // Context sensitive operand constraints aren't handled by the matcher,
7345 // so check them here.
7346 if (validateInstruction(Inst, Operands)) {
7347 // Still progress the IT block, otherwise one wrong condition causes
7348 // nasty cascading errors.
7349 forwardITPosition();
7353 // Some instructions need post-processing to, for example, tweak which
7354 // encoding is selected. Loop on it while changes happen so the
7355 // individual transformations can chain off each other. E.g.,
7356 // tPOP(r8)->t2LDMIA_UPD(sp,r8)->t2STR_POST(sp,r8)
7357 while (processInstruction(Inst, Operands))
7360 // Only move forward at the very end so that everything in validate
7361 // and process gets a consistent answer about whether we're in an IT
7363 forwardITPosition();
7365 // ITasm is an ARM mode pseudo-instruction that just sets the ITblock and
7366 // doesn't actually encode.
7367 if (Inst.getOpcode() == ARM::ITasm)
7371 Out.EmitInstruction(Inst);
7373 case Match_MissingFeature: {
7374 assert(ErrorInfo && "Unknown missing feature!");
7375 // Special case the error message for the very common case where only
7376 // a single subtarget feature is missing (Thumb vs. ARM, e.g.).
7377 std::string Msg = "instruction requires:";
7379 for (unsigned i = 0; i < (sizeof(ErrorInfo)*8-1); ++i) {
7380 if (ErrorInfo & Mask) {
7382 Msg += getSubtargetFeatureName(ErrorInfo & Mask);
7386 return Error(IDLoc, Msg);
7388 case Match_InvalidOperand: {
7389 SMLoc ErrorLoc = IDLoc;
7390 if (ErrorInfo != ~0U) {
7391 if (ErrorInfo >= Operands.size())
7392 return Error(IDLoc, "too few operands for instruction");
7394 ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
7395 if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
7398 return Error(ErrorLoc, "invalid operand for instruction");
7400 case Match_MnemonicFail:
7401 return Error(IDLoc, "invalid instruction",
7402 ((ARMOperand*)Operands[0])->getLocRange());
7403 case Match_ConversionFail:
7404 // The converter function will have already emitted a diagnostic.
7406 case Match_RequiresNotITBlock:
7407 return Error(IDLoc, "flag setting instruction only valid outside IT block");
7408 case Match_RequiresITBlock:
7409 return Error(IDLoc, "instruction only valid inside IT block");
7410 case Match_RequiresV6:
7411 return Error(IDLoc, "instruction variant requires ARMv6 or later");
7412 case Match_RequiresThumb2:
7413 return Error(IDLoc, "instruction variant requires Thumb2");
7416 llvm_unreachable("Implement any new match types added!");
7419 /// parseDirective parses the arm specific directives
7420 bool ARMAsmParser::ParseDirective(AsmToken DirectiveID) {
7421 StringRef IDVal = DirectiveID.getIdentifier();
7422 if (IDVal == ".word")
7423 return parseDirectiveWord(4, DirectiveID.getLoc());
7424 else if (IDVal == ".thumb")
7425 return parseDirectiveThumb(DirectiveID.getLoc());
7426 else if (IDVal == ".arm")
7427 return parseDirectiveARM(DirectiveID.getLoc());
7428 else if (IDVal == ".thumb_func")
7429 return parseDirectiveThumbFunc(DirectiveID.getLoc());
7430 else if (IDVal == ".code")
7431 return parseDirectiveCode(DirectiveID.getLoc());
7432 else if (IDVal == ".syntax")
7433 return parseDirectiveSyntax(DirectiveID.getLoc());
7434 else if (IDVal == ".unreq")
7435 return parseDirectiveUnreq(DirectiveID.getLoc());
7436 else if (IDVal == ".arch")
7437 return parseDirectiveArch(DirectiveID.getLoc());
7438 else if (IDVal == ".eabi_attribute")
7439 return parseDirectiveEabiAttr(DirectiveID.getLoc());
7443 /// parseDirectiveWord
7444 /// ::= .word [ expression (, expression)* ]
7445 bool ARMAsmParser::parseDirectiveWord(unsigned Size, SMLoc L) {
7446 if (getLexer().isNot(AsmToken::EndOfStatement)) {
7448 const MCExpr *Value;
7449 if (getParser().ParseExpression(Value))
7452 getParser().getStreamer().EmitValue(Value, Size, 0/*addrspace*/);
7454 if (getLexer().is(AsmToken::EndOfStatement))
7457 // FIXME: Improve diagnostic.
7458 if (getLexer().isNot(AsmToken::Comma))
7459 return Error(L, "unexpected token in directive");
7468 /// parseDirectiveThumb
7470 bool ARMAsmParser::parseDirectiveThumb(SMLoc L) {
7471 if (getLexer().isNot(AsmToken::EndOfStatement))
7472 return Error(L, "unexpected token in directive");
7477 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16);
7481 /// parseDirectiveARM
7483 bool ARMAsmParser::parseDirectiveARM(SMLoc L) {
7484 if (getLexer().isNot(AsmToken::EndOfStatement))
7485 return Error(L, "unexpected token in directive");
7490 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
7494 /// parseDirectiveThumbFunc
7495 /// ::= .thumbfunc symbol_name
7496 bool ARMAsmParser::parseDirectiveThumbFunc(SMLoc L) {
7497 const MCAsmInfo &MAI = getParser().getStreamer().getContext().getAsmInfo();
7498 bool isMachO = MAI.hasSubsectionsViaSymbols();
7500 bool needFuncName = true;
7502 // Darwin asm has (optionally) function name after .thumb_func direction
7505 const AsmToken &Tok = Parser.getTok();
7506 if (Tok.isNot(AsmToken::EndOfStatement)) {
7507 if (Tok.isNot(AsmToken::Identifier) && Tok.isNot(AsmToken::String))
7508 return Error(L, "unexpected token in .thumb_func directive");
7509 Name = Tok.getIdentifier();
7510 Parser.Lex(); // Consume the identifier token.
7511 needFuncName = false;
7515 if (getLexer().isNot(AsmToken::EndOfStatement))
7516 return Error(L, "unexpected token in directive");
7518 // Eat the end of statement and any blank lines that follow.
7519 while (getLexer().is(AsmToken::EndOfStatement))
7522 // FIXME: assuming function name will be the line following .thumb_func
7523 // We really should be checking the next symbol definition even if there's
7524 // stuff in between.
7526 Name = Parser.getTok().getIdentifier();
7529 // Mark symbol as a thumb symbol.
7530 MCSymbol *Func = getParser().getContext().GetOrCreateSymbol(Name);
7531 getParser().getStreamer().EmitThumbFunc(Func);
7535 /// parseDirectiveSyntax
7536 /// ::= .syntax unified | divided
7537 bool ARMAsmParser::parseDirectiveSyntax(SMLoc L) {
7538 const AsmToken &Tok = Parser.getTok();
7539 if (Tok.isNot(AsmToken::Identifier))
7540 return Error(L, "unexpected token in .syntax directive");
7541 StringRef Mode = Tok.getString();
7542 if (Mode == "unified" || Mode == "UNIFIED")
7544 else if (Mode == "divided" || Mode == "DIVIDED")
7545 return Error(L, "'.syntax divided' arm asssembly not supported");
7547 return Error(L, "unrecognized syntax mode in .syntax directive");
7549 if (getLexer().isNot(AsmToken::EndOfStatement))
7550 return Error(Parser.getTok().getLoc(), "unexpected token in directive");
7553 // TODO tell the MC streamer the mode
7554 // getParser().getStreamer().Emit???();
7558 /// parseDirectiveCode
7559 /// ::= .code 16 | 32
7560 bool ARMAsmParser::parseDirectiveCode(SMLoc L) {
7561 const AsmToken &Tok = Parser.getTok();
7562 if (Tok.isNot(AsmToken::Integer))
7563 return Error(L, "unexpected token in .code directive");
7564 int64_t Val = Parser.getTok().getIntVal();
7570 return Error(L, "invalid operand to .code directive");
7572 if (getLexer().isNot(AsmToken::EndOfStatement))
7573 return Error(Parser.getTok().getLoc(), "unexpected token in directive");
7579 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16);
7583 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
7589 /// parseDirectiveReq
7590 /// ::= name .req registername
7591 bool ARMAsmParser::parseDirectiveReq(StringRef Name, SMLoc L) {
7592 Parser.Lex(); // Eat the '.req' token.
7594 SMLoc SRegLoc, ERegLoc;
7595 if (ParseRegister(Reg, SRegLoc, ERegLoc)) {
7596 Parser.EatToEndOfStatement();
7597 return Error(SRegLoc, "register name expected");
7600 // Shouldn't be anything else.
7601 if (Parser.getTok().isNot(AsmToken::EndOfStatement)) {
7602 Parser.EatToEndOfStatement();
7603 return Error(Parser.getTok().getLoc(),
7604 "unexpected input in .req directive.");
7607 Parser.Lex(); // Consume the EndOfStatement
7609 if (RegisterReqs.GetOrCreateValue(Name, Reg).getValue() != Reg)
7610 return Error(SRegLoc, "redefinition of '" + Name +
7611 "' does not match original.");
7616 /// parseDirectiveUneq
7617 /// ::= .unreq registername
7618 bool ARMAsmParser::parseDirectiveUnreq(SMLoc L) {
7619 if (Parser.getTok().isNot(AsmToken::Identifier)) {
7620 Parser.EatToEndOfStatement();
7621 return Error(L, "unexpected input in .unreq directive.");
7623 RegisterReqs.erase(Parser.getTok().getIdentifier());
7624 Parser.Lex(); // Eat the identifier.
7628 /// parseDirectiveArch
7630 bool ARMAsmParser::parseDirectiveArch(SMLoc L) {
7634 /// parseDirectiveEabiAttr
7635 /// ::= .eabi_attribute int, int
7636 bool ARMAsmParser::parseDirectiveEabiAttr(SMLoc L) {
7640 extern "C" void LLVMInitializeARMAsmLexer();
7642 /// Force static initialization.
7643 extern "C" void LLVMInitializeARMAsmParser() {
7644 RegisterMCAsmParser<ARMAsmParser> X(TheARMTarget);
7645 RegisterMCAsmParser<ARMAsmParser> Y(TheThumbTarget);
7646 LLVMInitializeARMAsmLexer();
7649 #define GET_REGISTER_MATCHER
7650 #define GET_SUBTARGET_FEATURE_NAME
7651 #define GET_MATCHER_IMPLEMENTATION
7652 #include "ARMGenAsmMatcher.inc"