1 //===-- ARMAsmParser.cpp - Parse ARM assembly to MCInst instructions ------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "MCTargetDesc/ARMBaseInfo.h"
11 #include "MCTargetDesc/ARMAddressingModes.h"
12 #include "MCTargetDesc/ARMMCExpr.h"
13 #include "llvm/MC/MCParser/MCAsmLexer.h"
14 #include "llvm/MC/MCParser/MCAsmParser.h"
15 #include "llvm/MC/MCParser/MCParsedAsmOperand.h"
16 #include "llvm/MC/MCAsmInfo.h"
17 #include "llvm/MC/MCContext.h"
18 #include "llvm/MC/MCStreamer.h"
19 #include "llvm/MC/MCExpr.h"
20 #include "llvm/MC/MCInst.h"
21 #include "llvm/MC/MCInstrDesc.h"
22 #include "llvm/MC/MCRegisterInfo.h"
23 #include "llvm/MC/MCSubtargetInfo.h"
24 #include "llvm/MC/MCTargetAsmParser.h"
25 #include "llvm/Support/MathExtras.h"
26 #include "llvm/Support/SourceMgr.h"
27 #include "llvm/Support/TargetRegistry.h"
28 #include "llvm/Support/raw_ostream.h"
29 #include "llvm/ADT/BitVector.h"
30 #include "llvm/ADT/OwningPtr.h"
31 #include "llvm/ADT/STLExtras.h"
32 #include "llvm/ADT/SmallVector.h"
33 #include "llvm/ADT/StringSwitch.h"
34 #include "llvm/ADT/Twine.h"
42 enum VectorLaneTy { NoLanes, AllLanes, IndexedLane };
44 class ARMAsmParser : public MCTargetAsmParser {
47 const MCRegisterInfo *MRI;
49 // Map of register aliases registers via the .req directive.
50 StringMap<unsigned> RegisterReqs;
53 ARMCC::CondCodes Cond; // Condition for IT block.
54 unsigned Mask:4; // Condition mask for instructions.
55 // Starting at first 1 (from lsb).
56 // '1' condition as indicated in IT.
57 // '0' inverse of condition (else).
58 // Count of instructions in IT block is
59 // 4 - trailingzeroes(mask)
61 bool FirstCond; // Explicit flag for when we're parsing the
62 // First instruction in the IT block. It's
63 // implied in the mask, so needs special
66 unsigned CurPosition; // Current position in parsing of IT
67 // block. In range [0,3]. Initialized
68 // according to count of instructions in block.
69 // ~0U if no active IT block.
71 bool inITBlock() { return ITState.CurPosition != ~0U;}
72 void forwardITPosition() {
73 if (!inITBlock()) return;
74 // Move to the next instruction in the IT block, if there is one. If not,
75 // mark the block as done.
76 unsigned TZ = CountTrailingZeros_32(ITState.Mask);
77 if (++ITState.CurPosition == 5 - TZ)
78 ITState.CurPosition = ~0U; // Done with the IT block after this.
82 MCAsmParser &getParser() const { return Parser; }
83 MCAsmLexer &getLexer() const { return Parser.getLexer(); }
85 void Warning(SMLoc L, const Twine &Msg) { Parser.Warning(L, Msg); }
86 bool Error(SMLoc L, const Twine &Msg) { return Parser.Error(L, Msg); }
88 int tryParseRegister();
89 bool tryParseRegisterWithWriteBack(SmallVectorImpl<MCParsedAsmOperand*> &);
90 int tryParseShiftRegister(SmallVectorImpl<MCParsedAsmOperand*> &);
91 bool parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &);
92 bool parseMemory(SmallVectorImpl<MCParsedAsmOperand*> &);
93 bool parseOperand(SmallVectorImpl<MCParsedAsmOperand*> &, StringRef Mnemonic);
94 bool parsePrefix(ARMMCExpr::VariantKind &RefKind);
95 bool parseMemRegOffsetShift(ARM_AM::ShiftOpc &ShiftType,
96 unsigned &ShiftAmount);
97 bool parseDirectiveWord(unsigned Size, SMLoc L);
98 bool parseDirectiveThumb(SMLoc L);
99 bool parseDirectiveARM(SMLoc L);
100 bool parseDirectiveThumbFunc(SMLoc L);
101 bool parseDirectiveCode(SMLoc L);
102 bool parseDirectiveSyntax(SMLoc L);
103 bool parseDirectiveReq(StringRef Name, SMLoc L);
104 bool parseDirectiveUnreq(SMLoc L);
105 bool parseDirectiveArch(SMLoc L);
106 bool parseDirectiveEabiAttr(SMLoc L);
108 StringRef splitMnemonic(StringRef Mnemonic, unsigned &PredicationCode,
109 bool &CarrySetting, unsigned &ProcessorIMod,
111 void getMnemonicAcceptInfo(StringRef Mnemonic, bool &CanAcceptCarrySet,
112 bool &CanAcceptPredicationCode);
114 bool isThumb() const {
115 // FIXME: Can tablegen auto-generate this?
116 return (STI.getFeatureBits() & ARM::ModeThumb) != 0;
118 bool isThumbOne() const {
119 return isThumb() && (STI.getFeatureBits() & ARM::FeatureThumb2) == 0;
121 bool isThumbTwo() const {
122 return isThumb() && (STI.getFeatureBits() & ARM::FeatureThumb2);
124 bool hasV6Ops() const {
125 return STI.getFeatureBits() & ARM::HasV6Ops;
127 bool hasV7Ops() const {
128 return STI.getFeatureBits() & ARM::HasV7Ops;
131 unsigned FB = ComputeAvailableFeatures(STI.ToggleFeature(ARM::ModeThumb));
132 setAvailableFeatures(FB);
134 bool isMClass() const {
135 return STI.getFeatureBits() & ARM::FeatureMClass;
138 /// @name Auto-generated Match Functions
141 #define GET_ASSEMBLER_HEADER
142 #include "ARMGenAsmMatcher.inc"
146 OperandMatchResultTy parseITCondCode(SmallVectorImpl<MCParsedAsmOperand*>&);
147 OperandMatchResultTy parseCoprocNumOperand(
148 SmallVectorImpl<MCParsedAsmOperand*>&);
149 OperandMatchResultTy parseCoprocRegOperand(
150 SmallVectorImpl<MCParsedAsmOperand*>&);
151 OperandMatchResultTy parseCoprocOptionOperand(
152 SmallVectorImpl<MCParsedAsmOperand*>&);
153 OperandMatchResultTy parseMemBarrierOptOperand(
154 SmallVectorImpl<MCParsedAsmOperand*>&);
155 OperandMatchResultTy parseProcIFlagsOperand(
156 SmallVectorImpl<MCParsedAsmOperand*>&);
157 OperandMatchResultTy parseMSRMaskOperand(
158 SmallVectorImpl<MCParsedAsmOperand*>&);
159 OperandMatchResultTy parsePKHImm(SmallVectorImpl<MCParsedAsmOperand*> &O,
160 StringRef Op, int Low, int High);
161 OperandMatchResultTy parsePKHLSLImm(SmallVectorImpl<MCParsedAsmOperand*> &O) {
162 return parsePKHImm(O, "lsl", 0, 31);
164 OperandMatchResultTy parsePKHASRImm(SmallVectorImpl<MCParsedAsmOperand*> &O) {
165 return parsePKHImm(O, "asr", 1, 32);
167 OperandMatchResultTy parseSetEndImm(SmallVectorImpl<MCParsedAsmOperand*>&);
168 OperandMatchResultTy parseShifterImm(SmallVectorImpl<MCParsedAsmOperand*>&);
169 OperandMatchResultTy parseRotImm(SmallVectorImpl<MCParsedAsmOperand*>&);
170 OperandMatchResultTy parseBitfield(SmallVectorImpl<MCParsedAsmOperand*>&);
171 OperandMatchResultTy parsePostIdxReg(SmallVectorImpl<MCParsedAsmOperand*>&);
172 OperandMatchResultTy parseAM3Offset(SmallVectorImpl<MCParsedAsmOperand*>&);
173 OperandMatchResultTy parseFPImm(SmallVectorImpl<MCParsedAsmOperand*>&);
174 OperandMatchResultTy parseVectorList(SmallVectorImpl<MCParsedAsmOperand*>&);
175 OperandMatchResultTy parseVectorLane(VectorLaneTy &LaneKind, unsigned &Index);
177 // Asm Match Converter Methods
178 bool cvtT2LdrdPre(MCInst &Inst, unsigned Opcode,
179 const SmallVectorImpl<MCParsedAsmOperand*> &);
180 bool cvtT2StrdPre(MCInst &Inst, unsigned Opcode,
181 const SmallVectorImpl<MCParsedAsmOperand*> &);
182 bool cvtLdWriteBackRegT2AddrModeImm8(MCInst &Inst, unsigned Opcode,
183 const SmallVectorImpl<MCParsedAsmOperand*> &);
184 bool cvtStWriteBackRegT2AddrModeImm8(MCInst &Inst, unsigned Opcode,
185 const SmallVectorImpl<MCParsedAsmOperand*> &);
186 bool cvtLdWriteBackRegAddrMode2(MCInst &Inst, unsigned Opcode,
187 const SmallVectorImpl<MCParsedAsmOperand*> &);
188 bool cvtLdWriteBackRegAddrModeImm12(MCInst &Inst, unsigned Opcode,
189 const SmallVectorImpl<MCParsedAsmOperand*> &);
190 bool cvtStWriteBackRegAddrModeImm12(MCInst &Inst, unsigned Opcode,
191 const SmallVectorImpl<MCParsedAsmOperand*> &);
192 bool cvtStWriteBackRegAddrMode2(MCInst &Inst, unsigned Opcode,
193 const SmallVectorImpl<MCParsedAsmOperand*> &);
194 bool cvtStWriteBackRegAddrMode3(MCInst &Inst, unsigned Opcode,
195 const SmallVectorImpl<MCParsedAsmOperand*> &);
196 bool cvtLdExtTWriteBackImm(MCInst &Inst, unsigned Opcode,
197 const SmallVectorImpl<MCParsedAsmOperand*> &);
198 bool cvtLdExtTWriteBackReg(MCInst &Inst, unsigned Opcode,
199 const SmallVectorImpl<MCParsedAsmOperand*> &);
200 bool cvtStExtTWriteBackImm(MCInst &Inst, unsigned Opcode,
201 const SmallVectorImpl<MCParsedAsmOperand*> &);
202 bool cvtStExtTWriteBackReg(MCInst &Inst, unsigned Opcode,
203 const SmallVectorImpl<MCParsedAsmOperand*> &);
204 bool cvtLdrdPre(MCInst &Inst, unsigned Opcode,
205 const SmallVectorImpl<MCParsedAsmOperand*> &);
206 bool cvtStrdPre(MCInst &Inst, unsigned Opcode,
207 const SmallVectorImpl<MCParsedAsmOperand*> &);
208 bool cvtLdWriteBackRegAddrMode3(MCInst &Inst, unsigned Opcode,
209 const SmallVectorImpl<MCParsedAsmOperand*> &);
210 bool cvtThumbMultiply(MCInst &Inst, unsigned Opcode,
211 const SmallVectorImpl<MCParsedAsmOperand*> &);
212 bool cvtVLDwbFixed(MCInst &Inst, unsigned Opcode,
213 const SmallVectorImpl<MCParsedAsmOperand*> &);
214 bool cvtVLDwbRegister(MCInst &Inst, unsigned Opcode,
215 const SmallVectorImpl<MCParsedAsmOperand*> &);
216 bool cvtVSTwbFixed(MCInst &Inst, unsigned Opcode,
217 const SmallVectorImpl<MCParsedAsmOperand*> &);
218 bool cvtVSTwbRegister(MCInst &Inst, unsigned Opcode,
219 const SmallVectorImpl<MCParsedAsmOperand*> &);
221 bool validateInstruction(MCInst &Inst,
222 const SmallVectorImpl<MCParsedAsmOperand*> &Ops);
223 bool processInstruction(MCInst &Inst,
224 const SmallVectorImpl<MCParsedAsmOperand*> &Ops);
225 bool shouldOmitCCOutOperand(StringRef Mnemonic,
226 SmallVectorImpl<MCParsedAsmOperand*> &Operands);
229 enum ARMMatchResultTy {
230 Match_RequiresITBlock = FIRST_TARGET_MATCH_RESULT_TY,
231 Match_RequiresNotITBlock,
236 ARMAsmParser(MCSubtargetInfo &_STI, MCAsmParser &_Parser)
237 : MCTargetAsmParser(), STI(_STI), Parser(_Parser) {
238 MCAsmParserExtension::Initialize(_Parser);
240 // Cache the MCRegisterInfo.
241 MRI = &getContext().getRegisterInfo();
243 // Initialize the set of available features.
244 setAvailableFeatures(ComputeAvailableFeatures(STI.getFeatureBits()));
246 // Not in an ITBlock to start with.
247 ITState.CurPosition = ~0U;
250 // Implementation of the MCTargetAsmParser interface:
251 bool ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc);
252 bool ParseInstruction(StringRef Name, SMLoc NameLoc,
253 SmallVectorImpl<MCParsedAsmOperand*> &Operands);
254 bool ParseDirective(AsmToken DirectiveID);
256 unsigned checkTargetMatchPredicate(MCInst &Inst);
258 bool MatchAndEmitInstruction(SMLoc IDLoc,
259 SmallVectorImpl<MCParsedAsmOperand*> &Operands,
262 } // end anonymous namespace
266 /// ARMOperand - Instances of this class represent a parsed ARM machine
268 class ARMOperand : public MCParsedAsmOperand {
288 k_VectorListAllLanes,
294 k_BitfieldDescriptor,
298 SMLoc StartLoc, EndLoc;
299 SmallVector<unsigned, 8> Registers;
303 ARMCC::CondCodes Val;
323 ARM_PROC::IFlags Val;
339 // A vector register list is a sequential list of 1 to 4 registers.
355 /// Combined record for all forms of ARM address expressions.
358 // Offset is in OffsetReg or OffsetImm. If both are zero, no offset
360 const MCConstantExpr *OffsetImm; // Offset immediate value
361 unsigned OffsetRegNum; // Offset register num, when OffsetImm == NULL
362 ARM_AM::ShiftOpc ShiftType; // Shift type for OffsetReg
363 unsigned ShiftImm; // shift for OffsetReg.
364 unsigned Alignment; // 0 = no alignment specified
365 // n = alignment in bytes (2, 4, 8, 16, or 32)
366 unsigned isNegative : 1; // Negated OffsetReg? (~'U' bit)
372 ARM_AM::ShiftOpc ShiftTy;
381 ARM_AM::ShiftOpc ShiftTy;
387 ARM_AM::ShiftOpc ShiftTy;
400 ARMOperand(KindTy K) : MCParsedAsmOperand(), Kind(K) {}
402 ARMOperand(const ARMOperand &o) : MCParsedAsmOperand() {
404 StartLoc = o.StartLoc;
421 case k_DPRRegisterList:
422 case k_SPRRegisterList:
423 Registers = o.Registers;
426 case k_VectorListAllLanes:
427 case k_VectorListIndexed:
428 VectorList = o.VectorList;
435 CoprocOption = o.CoprocOption;
440 case k_MemBarrierOpt:
446 case k_PostIndexRegister:
447 PostIdxReg = o.PostIdxReg;
455 case k_ShifterImmediate:
456 ShifterImm = o.ShifterImm;
458 case k_ShiftedRegister:
459 RegShiftedReg = o.RegShiftedReg;
461 case k_ShiftedImmediate:
462 RegShiftedImm = o.RegShiftedImm;
464 case k_RotateImmediate:
467 case k_BitfieldDescriptor:
468 Bitfield = o.Bitfield;
471 VectorIndex = o.VectorIndex;
476 /// getStartLoc - Get the location of the first token of this operand.
477 SMLoc getStartLoc() const { return StartLoc; }
478 /// getEndLoc - Get the location of the last token of this operand.
479 SMLoc getEndLoc() const { return EndLoc; }
481 ARMCC::CondCodes getCondCode() const {
482 assert(Kind == k_CondCode && "Invalid access!");
486 unsigned getCoproc() const {
487 assert((Kind == k_CoprocNum || Kind == k_CoprocReg) && "Invalid access!");
491 StringRef getToken() const {
492 assert(Kind == k_Token && "Invalid access!");
493 return StringRef(Tok.Data, Tok.Length);
496 unsigned getReg() const {
497 assert((Kind == k_Register || Kind == k_CCOut) && "Invalid access!");
501 const SmallVectorImpl<unsigned> &getRegList() const {
502 assert((Kind == k_RegisterList || Kind == k_DPRRegisterList ||
503 Kind == k_SPRRegisterList) && "Invalid access!");
507 const MCExpr *getImm() const {
508 assert(isImm() && "Invalid access!");
512 unsigned getVectorIndex() const {
513 assert(Kind == k_VectorIndex && "Invalid access!");
514 return VectorIndex.Val;
517 ARM_MB::MemBOpt getMemBarrierOpt() const {
518 assert(Kind == k_MemBarrierOpt && "Invalid access!");
522 ARM_PROC::IFlags getProcIFlags() const {
523 assert(Kind == k_ProcIFlags && "Invalid access!");
527 unsigned getMSRMask() const {
528 assert(Kind == k_MSRMask && "Invalid access!");
532 bool isCoprocNum() const { return Kind == k_CoprocNum; }
533 bool isCoprocReg() const { return Kind == k_CoprocReg; }
534 bool isCoprocOption() const { return Kind == k_CoprocOption; }
535 bool isCondCode() const { return Kind == k_CondCode; }
536 bool isCCOut() const { return Kind == k_CCOut; }
537 bool isITMask() const { return Kind == k_ITCondMask; }
538 bool isITCondCode() const { return Kind == k_CondCode; }
539 bool isImm() const { return Kind == k_Immediate; }
540 bool isFPImm() const {
541 if (!isImm()) return false;
542 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
543 if (!CE) return false;
544 int Val = ARM_AM::getFP32Imm(APInt(32, CE->getValue()));
547 bool isFBits16() const {
548 if (!isImm()) return false;
549 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
550 if (!CE) return false;
551 int64_t Value = CE->getValue();
552 return Value >= 0 && Value <= 16;
554 bool isFBits32() const {
555 if (!isImm()) return false;
556 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
557 if (!CE) return false;
558 int64_t Value = CE->getValue();
559 return Value >= 1 && Value <= 32;
561 bool isImm8s4() const {
562 if (!isImm()) return false;
563 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
564 if (!CE) return false;
565 int64_t Value = CE->getValue();
566 return ((Value & 3) == 0) && Value >= -1020 && Value <= 1020;
568 bool isImm0_1020s4() const {
569 if (!isImm()) return false;
570 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
571 if (!CE) return false;
572 int64_t Value = CE->getValue();
573 return ((Value & 3) == 0) && Value >= 0 && Value <= 1020;
575 bool isImm0_508s4() const {
576 if (!isImm()) return false;
577 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
578 if (!CE) return false;
579 int64_t Value = CE->getValue();
580 return ((Value & 3) == 0) && Value >= 0 && Value <= 508;
582 bool isImm0_255() const {
583 if (!isImm()) return false;
584 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
585 if (!CE) return false;
586 int64_t Value = CE->getValue();
587 return Value >= 0 && Value < 256;
589 bool isImm0_1() const {
590 if (!isImm()) return false;
591 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
592 if (!CE) return false;
593 int64_t Value = CE->getValue();
594 return Value >= 0 && Value < 2;
596 bool isImm0_3() const {
597 if (!isImm()) return false;
598 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
599 if (!CE) return false;
600 int64_t Value = CE->getValue();
601 return Value >= 0 && Value < 4;
603 bool isImm0_7() const {
604 if (!isImm()) return false;
605 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
606 if (!CE) return false;
607 int64_t Value = CE->getValue();
608 return Value >= 0 && Value < 8;
610 bool isImm0_15() const {
611 if (!isImm()) return false;
612 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
613 if (!CE) return false;
614 int64_t Value = CE->getValue();
615 return Value >= 0 && Value < 16;
617 bool isImm0_31() const {
618 if (!isImm()) return false;
619 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
620 if (!CE) return false;
621 int64_t Value = CE->getValue();
622 return Value >= 0 && Value < 32;
624 bool isImm0_63() const {
625 if (!isImm()) return false;
626 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
627 if (!CE) return false;
628 int64_t Value = CE->getValue();
629 return Value >= 0 && Value < 64;
631 bool isImm8() const {
632 if (!isImm()) return false;
633 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
634 if (!CE) return false;
635 int64_t Value = CE->getValue();
638 bool isImm16() const {
639 if (!isImm()) return false;
640 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
641 if (!CE) return false;
642 int64_t Value = CE->getValue();
645 bool isImm32() const {
646 if (!isImm()) return false;
647 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
648 if (!CE) return false;
649 int64_t Value = CE->getValue();
652 bool isShrImm8() const {
653 if (!isImm()) return false;
654 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
655 if (!CE) return false;
656 int64_t Value = CE->getValue();
657 return Value > 0 && Value <= 8;
659 bool isShrImm16() const {
660 if (!isImm()) return false;
661 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
662 if (!CE) return false;
663 int64_t Value = CE->getValue();
664 return Value > 0 && Value <= 16;
666 bool isShrImm32() const {
667 if (!isImm()) return false;
668 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
669 if (!CE) return false;
670 int64_t Value = CE->getValue();
671 return Value > 0 && Value <= 32;
673 bool isShrImm64() const {
674 if (!isImm()) return false;
675 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
676 if (!CE) return false;
677 int64_t Value = CE->getValue();
678 return Value > 0 && Value <= 64;
680 bool isImm1_7() const {
681 if (!isImm()) return false;
682 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
683 if (!CE) return false;
684 int64_t Value = CE->getValue();
685 return Value > 0 && Value < 8;
687 bool isImm1_15() const {
688 if (!isImm()) return false;
689 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
690 if (!CE) return false;
691 int64_t Value = CE->getValue();
692 return Value > 0 && Value < 16;
694 bool isImm1_31() const {
695 if (!isImm()) return false;
696 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
697 if (!CE) return false;
698 int64_t Value = CE->getValue();
699 return Value > 0 && Value < 32;
701 bool isImm1_16() const {
702 if (!isImm()) return false;
703 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
704 if (!CE) return false;
705 int64_t Value = CE->getValue();
706 return Value > 0 && Value < 17;
708 bool isImm1_32() const {
709 if (!isImm()) return false;
710 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
711 if (!CE) return false;
712 int64_t Value = CE->getValue();
713 return Value > 0 && Value < 33;
715 bool isImm0_32() const {
716 if (!isImm()) return false;
717 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
718 if (!CE) return false;
719 int64_t Value = CE->getValue();
720 return Value >= 0 && Value < 33;
722 bool isImm0_65535() const {
723 if (!isImm()) return false;
724 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
725 if (!CE) return false;
726 int64_t Value = CE->getValue();
727 return Value >= 0 && Value < 65536;
729 bool isImm0_65535Expr() const {
730 if (!isImm()) return false;
731 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
732 // If it's not a constant expression, it'll generate a fixup and be
734 if (!CE) return true;
735 int64_t Value = CE->getValue();
736 return Value >= 0 && Value < 65536;
738 bool isImm24bit() 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 <= 0xffffff;
745 bool isImmThumbSR() 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 isPKHLSLImm() 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 < 32;
759 bool isPKHASRImm() const {
760 if (!isImm()) return false;
761 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
762 if (!CE) return false;
763 int64_t Value = CE->getValue();
764 return Value > 0 && Value <= 32;
766 bool isARMSOImm() const {
767 if (!isImm()) return false;
768 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
769 if (!CE) return false;
770 int64_t Value = CE->getValue();
771 return ARM_AM::getSOImmVal(Value) != -1;
773 bool isARMSOImmNot() const {
774 if (!isImm()) return false;
775 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
776 if (!CE) return false;
777 int64_t Value = CE->getValue();
778 return ARM_AM::getSOImmVal(~Value) != -1;
780 bool isARMSOImmNeg() const {
781 if (!isImm()) return false;
782 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
783 if (!CE) return false;
784 int64_t Value = CE->getValue();
785 // Only use this when not representable as a plain so_imm.
786 return ARM_AM::getSOImmVal(Value) == -1 &&
787 ARM_AM::getSOImmVal(-Value) != -1;
789 bool isT2SOImm() 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 ARM_AM::getT2SOImmVal(Value) != -1;
796 bool isT2SOImmNot() 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::getT2SOImmVal(~Value) != -1;
803 bool isT2SOImmNeg() 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 // Only use this when not representable as a plain so_imm.
809 return ARM_AM::getT2SOImmVal(Value) == -1 &&
810 ARM_AM::getT2SOImmVal(-Value) != -1;
812 bool isSetEndImm() const {
813 if (!isImm()) return false;
814 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
815 if (!CE) return false;
816 int64_t Value = CE->getValue();
817 return Value == 1 || Value == 0;
819 bool isReg() const { return Kind == k_Register; }
820 bool isRegList() const { return Kind == k_RegisterList; }
821 bool isDPRRegList() const { return Kind == k_DPRRegisterList; }
822 bool isSPRRegList() const { return Kind == k_SPRRegisterList; }
823 bool isToken() const { return Kind == k_Token; }
824 bool isMemBarrierOpt() const { return Kind == k_MemBarrierOpt; }
825 bool isMemory() const { return Kind == k_Memory; }
826 bool isShifterImm() const { return Kind == k_ShifterImmediate; }
827 bool isRegShiftedReg() const { return Kind == k_ShiftedRegister; }
828 bool isRegShiftedImm() const { return Kind == k_ShiftedImmediate; }
829 bool isRotImm() const { return Kind == k_RotateImmediate; }
830 bool isBitfield() const { return Kind == k_BitfieldDescriptor; }
831 bool isPostIdxRegShifted() const { return Kind == k_PostIndexRegister; }
832 bool isPostIdxReg() const {
833 return Kind == k_PostIndexRegister && PostIdxReg.ShiftTy ==ARM_AM::no_shift;
835 bool isMemNoOffset(bool alignOK = false) const {
838 // No offset of any kind.
839 return Memory.OffsetRegNum == 0 && Memory.OffsetImm == 0 &&
840 (alignOK || Memory.Alignment == 0);
842 bool isMemPCRelImm12() const {
843 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
845 // Base register must be PC.
846 if (Memory.BaseRegNum != ARM::PC)
848 // Immediate offset in range [-4095, 4095].
849 if (!Memory.OffsetImm) return true;
850 int64_t Val = Memory.OffsetImm->getValue();
851 return (Val > -4096 && Val < 4096) || (Val == INT32_MIN);
853 bool isAlignedMemory() const {
854 return isMemNoOffset(true);
856 bool isAddrMode2() const {
857 if (!isMemory() || Memory.Alignment != 0) return false;
858 // Check for register offset.
859 if (Memory.OffsetRegNum) return true;
860 // Immediate offset in range [-4095, 4095].
861 if (!Memory.OffsetImm) return true;
862 int64_t Val = Memory.OffsetImm->getValue();
863 return Val > -4096 && Val < 4096;
865 bool isAM2OffsetImm() const {
866 if (!isImm()) return false;
867 // Immediate offset in range [-4095, 4095].
868 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
869 if (!CE) return false;
870 int64_t Val = CE->getValue();
871 return Val > -4096 && Val < 4096;
873 bool isAddrMode3() const {
874 // If we have an immediate that's not a constant, treat it as a label
875 // reference needing a fixup. If it is a constant, it's something else
877 if (isImm() && !isa<MCConstantExpr>(getImm()))
879 if (!isMemory() || Memory.Alignment != 0) return false;
880 // No shifts are legal for AM3.
881 if (Memory.ShiftType != ARM_AM::no_shift) return false;
882 // Check for register offset.
883 if (Memory.OffsetRegNum) return true;
884 // Immediate offset in range [-255, 255].
885 if (!Memory.OffsetImm) return true;
886 int64_t Val = Memory.OffsetImm->getValue();
887 return Val > -256 && Val < 256;
889 bool isAM3Offset() const {
890 if (Kind != k_Immediate && Kind != k_PostIndexRegister)
892 if (Kind == k_PostIndexRegister)
893 return PostIdxReg.ShiftTy == ARM_AM::no_shift;
894 // Immediate offset in range [-255, 255].
895 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
896 if (!CE) return false;
897 int64_t Val = CE->getValue();
898 // Special case, #-0 is INT32_MIN.
899 return (Val > -256 && Val < 256) || Val == INT32_MIN;
901 bool isAddrMode5() const {
902 // If we have an immediate that's not a constant, treat it as a label
903 // reference needing a fixup. If it is a constant, it's something else
905 if (isImm() && !isa<MCConstantExpr>(getImm()))
907 if (!isMemory() || Memory.Alignment != 0) return false;
908 // Check for register offset.
909 if (Memory.OffsetRegNum) return false;
910 // Immediate offset in range [-1020, 1020] and a multiple of 4.
911 if (!Memory.OffsetImm) return true;
912 int64_t Val = Memory.OffsetImm->getValue();
913 return (Val >= -1020 && Val <= 1020 && ((Val & 3) == 0)) ||
916 bool isMemTBB() const {
917 if (!isMemory() || !Memory.OffsetRegNum || Memory.isNegative ||
918 Memory.ShiftType != ARM_AM::no_shift || Memory.Alignment != 0)
922 bool isMemTBH() const {
923 if (!isMemory() || !Memory.OffsetRegNum || Memory.isNegative ||
924 Memory.ShiftType != ARM_AM::lsl || Memory.ShiftImm != 1 ||
925 Memory.Alignment != 0 )
929 bool isMemRegOffset() const {
930 if (!isMemory() || !Memory.OffsetRegNum || Memory.Alignment != 0)
934 bool isT2MemRegOffset() const {
935 if (!isMemory() || !Memory.OffsetRegNum || Memory.isNegative ||
936 Memory.Alignment != 0)
938 // Only lsl #{0, 1, 2, 3} allowed.
939 if (Memory.ShiftType == ARM_AM::no_shift)
941 if (Memory.ShiftType != ARM_AM::lsl || Memory.ShiftImm > 3)
945 bool isMemThumbRR() const {
946 // Thumb reg+reg addressing is simple. Just two registers, a base and
947 // an offset. No shifts, negations or any other complicating factors.
948 if (!isMemory() || !Memory.OffsetRegNum || Memory.isNegative ||
949 Memory.ShiftType != ARM_AM::no_shift || Memory.Alignment != 0)
951 return isARMLowRegister(Memory.BaseRegNum) &&
952 (!Memory.OffsetRegNum || isARMLowRegister(Memory.OffsetRegNum));
954 bool isMemThumbRIs4() const {
955 if (!isMemory() || Memory.OffsetRegNum != 0 ||
956 !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
958 // Immediate offset, multiple of 4 in range [0, 124].
959 if (!Memory.OffsetImm) return true;
960 int64_t Val = Memory.OffsetImm->getValue();
961 return Val >= 0 && Val <= 124 && (Val % 4) == 0;
963 bool isMemThumbRIs2() const {
964 if (!isMemory() || Memory.OffsetRegNum != 0 ||
965 !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
967 // Immediate offset, multiple of 4 in range [0, 62].
968 if (!Memory.OffsetImm) return true;
969 int64_t Val = Memory.OffsetImm->getValue();
970 return Val >= 0 && Val <= 62 && (Val % 2) == 0;
972 bool isMemThumbRIs1() const {
973 if (!isMemory() || Memory.OffsetRegNum != 0 ||
974 !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
976 // Immediate offset in range [0, 31].
977 if (!Memory.OffsetImm) return true;
978 int64_t Val = Memory.OffsetImm->getValue();
979 return Val >= 0 && Val <= 31;
981 bool isMemThumbSPI() const {
982 if (!isMemory() || Memory.OffsetRegNum != 0 ||
983 Memory.BaseRegNum != ARM::SP || Memory.Alignment != 0)
985 // Immediate offset, multiple of 4 in range [0, 1020].
986 if (!Memory.OffsetImm) return true;
987 int64_t Val = Memory.OffsetImm->getValue();
988 return Val >= 0 && Val <= 1020 && (Val % 4) == 0;
990 bool isMemImm8s4Offset() const {
991 // If we have an immediate that's not a constant, treat it as a label
992 // reference needing a fixup. If it is a constant, it's something else
994 if (isImm() && !isa<MCConstantExpr>(getImm()))
996 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
998 // Immediate offset a multiple of 4 in range [-1020, 1020].
999 if (!Memory.OffsetImm) return true;
1000 int64_t Val = Memory.OffsetImm->getValue();
1001 return Val >= -1020 && Val <= 1020 && (Val & 3) == 0;
1003 bool isMemImm0_1020s4Offset() const {
1004 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1006 // Immediate offset a multiple of 4 in range [0, 1020].
1007 if (!Memory.OffsetImm) return true;
1008 int64_t Val = Memory.OffsetImm->getValue();
1009 return Val >= 0 && Val <= 1020 && (Val & 3) == 0;
1011 bool isMemImm8Offset() const {
1012 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1014 // Base reg of PC isn't allowed for these encodings.
1015 if (Memory.BaseRegNum == ARM::PC) return false;
1016 // Immediate offset in range [-255, 255].
1017 if (!Memory.OffsetImm) return true;
1018 int64_t Val = Memory.OffsetImm->getValue();
1019 return (Val == INT32_MIN) || (Val > -256 && Val < 256);
1021 bool isMemPosImm8Offset() const {
1022 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1024 // Immediate offset in range [0, 255].
1025 if (!Memory.OffsetImm) return true;
1026 int64_t Val = Memory.OffsetImm->getValue();
1027 return Val >= 0 && Val < 256;
1029 bool isMemNegImm8Offset() const {
1030 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1032 // Base reg of PC isn't allowed for these encodings.
1033 if (Memory.BaseRegNum == ARM::PC) return false;
1034 // Immediate offset in range [-255, -1].
1035 if (!Memory.OffsetImm) return false;
1036 int64_t Val = Memory.OffsetImm->getValue();
1037 return (Val == INT32_MIN) || (Val > -256 && Val < 0);
1039 bool isMemUImm12Offset() const {
1040 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1042 // Immediate offset in range [0, 4095].
1043 if (!Memory.OffsetImm) return true;
1044 int64_t Val = Memory.OffsetImm->getValue();
1045 return (Val >= 0 && Val < 4096);
1047 bool isMemImm12Offset() const {
1048 // If we have an immediate that's not a constant, treat it as a label
1049 // reference needing a fixup. If it is a constant, it's something else
1050 // and we reject it.
1051 if (isImm() && !isa<MCConstantExpr>(getImm()))
1054 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1056 // Immediate offset in range [-4095, 4095].
1057 if (!Memory.OffsetImm) return true;
1058 int64_t Val = Memory.OffsetImm->getValue();
1059 return (Val > -4096 && Val < 4096) || (Val == INT32_MIN);
1061 bool isPostIdxImm8() const {
1062 if (!isImm()) return false;
1063 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1064 if (!CE) return false;
1065 int64_t Val = CE->getValue();
1066 return (Val > -256 && Val < 256) || (Val == INT32_MIN);
1068 bool isPostIdxImm8s4() const {
1069 if (!isImm()) return false;
1070 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1071 if (!CE) return false;
1072 int64_t Val = CE->getValue();
1073 return ((Val & 3) == 0 && Val >= -1020 && Val <= 1020) ||
1077 bool isMSRMask() const { return Kind == k_MSRMask; }
1078 bool isProcIFlags() const { return Kind == k_ProcIFlags; }
1081 bool isSingleSpacedVectorList() const {
1082 return Kind == k_VectorList && !VectorList.isDoubleSpaced;
1084 bool isDoubleSpacedVectorList() const {
1085 return Kind == k_VectorList && VectorList.isDoubleSpaced;
1087 bool isVecListOneD() const {
1088 if (!isSingleSpacedVectorList()) return false;
1089 return VectorList.Count == 1;
1092 bool isVecListDPair() const {
1093 if (!isSingleSpacedVectorList()) return false;
1094 return (ARMMCRegisterClasses[ARM::DPairRegClassID]
1095 .contains(VectorList.RegNum));
1098 bool isVecListThreeD() const {
1099 if (!isSingleSpacedVectorList()) return false;
1100 return VectorList.Count == 3;
1103 bool isVecListFourD() const {
1104 if (!isSingleSpacedVectorList()) return false;
1105 return VectorList.Count == 4;
1108 bool isVecListDPairSpaced() const {
1109 if (isSingleSpacedVectorList()) return false;
1110 return (ARMMCRegisterClasses[ARM::DPairSpcRegClassID]
1111 .contains(VectorList.RegNum));
1114 bool isVecListThreeQ() const {
1115 if (!isDoubleSpacedVectorList()) return false;
1116 return VectorList.Count == 3;
1119 bool isVecListFourQ() const {
1120 if (!isDoubleSpacedVectorList()) return false;
1121 return VectorList.Count == 4;
1124 bool isSingleSpacedVectorAllLanes() const {
1125 return Kind == k_VectorListAllLanes && !VectorList.isDoubleSpaced;
1127 bool isDoubleSpacedVectorAllLanes() const {
1128 return Kind == k_VectorListAllLanes && VectorList.isDoubleSpaced;
1130 bool isVecListOneDAllLanes() const {
1131 if (!isSingleSpacedVectorAllLanes()) return false;
1132 return VectorList.Count == 1;
1135 bool isVecListDPairAllLanes() const {
1136 if (!isSingleSpacedVectorAllLanes()) return false;
1137 return (ARMMCRegisterClasses[ARM::DPairRegClassID]
1138 .contains(VectorList.RegNum));
1141 bool isVecListDPairSpacedAllLanes() const {
1142 if (!isDoubleSpacedVectorAllLanes()) return false;
1143 return VectorList.Count == 2;
1146 bool isVecListThreeDAllLanes() const {
1147 if (!isSingleSpacedVectorAllLanes()) return false;
1148 return VectorList.Count == 3;
1151 bool isVecListThreeQAllLanes() const {
1152 if (!isDoubleSpacedVectorAllLanes()) return false;
1153 return VectorList.Count == 3;
1156 bool isVecListFourDAllLanes() const {
1157 if (!isSingleSpacedVectorAllLanes()) return false;
1158 return VectorList.Count == 4;
1161 bool isVecListFourQAllLanes() const {
1162 if (!isDoubleSpacedVectorAllLanes()) return false;
1163 return VectorList.Count == 4;
1166 bool isSingleSpacedVectorIndexed() const {
1167 return Kind == k_VectorListIndexed && !VectorList.isDoubleSpaced;
1169 bool isDoubleSpacedVectorIndexed() const {
1170 return Kind == k_VectorListIndexed && VectorList.isDoubleSpaced;
1172 bool isVecListOneDByteIndexed() const {
1173 if (!isSingleSpacedVectorIndexed()) return false;
1174 return VectorList.Count == 1 && VectorList.LaneIndex <= 7;
1177 bool isVecListOneDHWordIndexed() const {
1178 if (!isSingleSpacedVectorIndexed()) return false;
1179 return VectorList.Count == 1 && VectorList.LaneIndex <= 3;
1182 bool isVecListOneDWordIndexed() const {
1183 if (!isSingleSpacedVectorIndexed()) return false;
1184 return VectorList.Count == 1 && VectorList.LaneIndex <= 1;
1187 bool isVecListTwoDByteIndexed() const {
1188 if (!isSingleSpacedVectorIndexed()) return false;
1189 return VectorList.Count == 2 && VectorList.LaneIndex <= 7;
1192 bool isVecListTwoDHWordIndexed() const {
1193 if (!isSingleSpacedVectorIndexed()) return false;
1194 return VectorList.Count == 2 && VectorList.LaneIndex <= 3;
1197 bool isVecListTwoQWordIndexed() const {
1198 if (!isDoubleSpacedVectorIndexed()) return false;
1199 return VectorList.Count == 2 && VectorList.LaneIndex <= 1;
1202 bool isVecListTwoQHWordIndexed() const {
1203 if (!isDoubleSpacedVectorIndexed()) return false;
1204 return VectorList.Count == 2 && VectorList.LaneIndex <= 3;
1207 bool isVecListTwoDWordIndexed() const {
1208 if (!isSingleSpacedVectorIndexed()) return false;
1209 return VectorList.Count == 2 && VectorList.LaneIndex <= 1;
1212 bool isVecListThreeDByteIndexed() const {
1213 if (!isSingleSpacedVectorIndexed()) return false;
1214 return VectorList.Count == 3 && VectorList.LaneIndex <= 7;
1217 bool isVecListThreeDHWordIndexed() const {
1218 if (!isSingleSpacedVectorIndexed()) return false;
1219 return VectorList.Count == 3 && VectorList.LaneIndex <= 3;
1222 bool isVecListThreeQWordIndexed() const {
1223 if (!isDoubleSpacedVectorIndexed()) return false;
1224 return VectorList.Count == 3 && VectorList.LaneIndex <= 1;
1227 bool isVecListThreeQHWordIndexed() const {
1228 if (!isDoubleSpacedVectorIndexed()) return false;
1229 return VectorList.Count == 3 && VectorList.LaneIndex <= 3;
1232 bool isVecListThreeDWordIndexed() const {
1233 if (!isSingleSpacedVectorIndexed()) return false;
1234 return VectorList.Count == 3 && VectorList.LaneIndex <= 1;
1237 bool isVecListFourDByteIndexed() const {
1238 if (!isSingleSpacedVectorIndexed()) return false;
1239 return VectorList.Count == 4 && VectorList.LaneIndex <= 7;
1242 bool isVecListFourDHWordIndexed() const {
1243 if (!isSingleSpacedVectorIndexed()) return false;
1244 return VectorList.Count == 4 && VectorList.LaneIndex <= 3;
1247 bool isVecListFourQWordIndexed() const {
1248 if (!isDoubleSpacedVectorIndexed()) return false;
1249 return VectorList.Count == 4 && VectorList.LaneIndex <= 1;
1252 bool isVecListFourQHWordIndexed() const {
1253 if (!isDoubleSpacedVectorIndexed()) return false;
1254 return VectorList.Count == 4 && VectorList.LaneIndex <= 3;
1257 bool isVecListFourDWordIndexed() const {
1258 if (!isSingleSpacedVectorIndexed()) return false;
1259 return VectorList.Count == 4 && VectorList.LaneIndex <= 1;
1262 bool isVectorIndex8() const {
1263 if (Kind != k_VectorIndex) return false;
1264 return VectorIndex.Val < 8;
1266 bool isVectorIndex16() const {
1267 if (Kind != k_VectorIndex) return false;
1268 return VectorIndex.Val < 4;
1270 bool isVectorIndex32() const {
1271 if (Kind != k_VectorIndex) return false;
1272 return VectorIndex.Val < 2;
1275 bool isNEONi8splat() const {
1276 if (!isImm()) return false;
1277 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1278 // Must be a constant.
1279 if (!CE) return false;
1280 int64_t Value = CE->getValue();
1281 // i8 value splatted across 8 bytes. The immediate is just the 8 byte
1283 return Value >= 0 && Value < 256;
1286 bool isNEONi16splat() const {
1287 if (!isImm()) return false;
1288 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1289 // Must be a constant.
1290 if (!CE) return false;
1291 int64_t Value = CE->getValue();
1292 // i16 value in the range [0,255] or [0x0100, 0xff00]
1293 return (Value >= 0 && Value < 256) || (Value >= 0x0100 && Value <= 0xff00);
1296 bool isNEONi32splat() const {
1297 if (!isImm()) return false;
1298 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1299 // Must be a constant.
1300 if (!CE) return false;
1301 int64_t Value = CE->getValue();
1302 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X.
1303 return (Value >= 0 && Value < 256) ||
1304 (Value >= 0x0100 && Value <= 0xff00) ||
1305 (Value >= 0x010000 && Value <= 0xff0000) ||
1306 (Value >= 0x01000000 && Value <= 0xff000000);
1309 bool isNEONi32vmov() const {
1310 if (!isImm()) return false;
1311 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1312 // Must be a constant.
1313 if (!CE) return false;
1314 int64_t Value = CE->getValue();
1315 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X,
1316 // for VMOV/VMVN only, 00Xf or 0Xff are also accepted.
1317 return (Value >= 0 && Value < 256) ||
1318 (Value >= 0x0100 && Value <= 0xff00) ||
1319 (Value >= 0x010000 && Value <= 0xff0000) ||
1320 (Value >= 0x01000000 && Value <= 0xff000000) ||
1321 (Value >= 0x01ff && Value <= 0xffff && (Value & 0xff) == 0xff) ||
1322 (Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
1324 bool isNEONi32vmovNeg() const {
1325 if (!isImm()) return false;
1326 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1327 // Must be a constant.
1328 if (!CE) return false;
1329 int64_t Value = ~CE->getValue();
1330 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X,
1331 // for VMOV/VMVN only, 00Xf or 0Xff are also accepted.
1332 return (Value >= 0 && Value < 256) ||
1333 (Value >= 0x0100 && Value <= 0xff00) ||
1334 (Value >= 0x010000 && Value <= 0xff0000) ||
1335 (Value >= 0x01000000 && Value <= 0xff000000) ||
1336 (Value >= 0x01ff && Value <= 0xffff && (Value & 0xff) == 0xff) ||
1337 (Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
1340 bool isNEONi64splat() const {
1341 if (!isImm()) return false;
1342 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1343 // Must be a constant.
1344 if (!CE) return false;
1345 uint64_t Value = CE->getValue();
1346 // i64 value with each byte being either 0 or 0xff.
1347 for (unsigned i = 0; i < 8; ++i)
1348 if ((Value & 0xff) != 0 && (Value & 0xff) != 0xff) return false;
1352 void addExpr(MCInst &Inst, const MCExpr *Expr) const {
1353 // Add as immediates when possible. Null MCExpr = 0.
1355 Inst.addOperand(MCOperand::CreateImm(0));
1356 else if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr))
1357 Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
1359 Inst.addOperand(MCOperand::CreateExpr(Expr));
1362 void addCondCodeOperands(MCInst &Inst, unsigned N) const {
1363 assert(N == 2 && "Invalid number of operands!");
1364 Inst.addOperand(MCOperand::CreateImm(unsigned(getCondCode())));
1365 unsigned RegNum = getCondCode() == ARMCC::AL ? 0: ARM::CPSR;
1366 Inst.addOperand(MCOperand::CreateReg(RegNum));
1369 void addCoprocNumOperands(MCInst &Inst, unsigned N) const {
1370 assert(N == 1 && "Invalid number of operands!");
1371 Inst.addOperand(MCOperand::CreateImm(getCoproc()));
1374 void addCoprocRegOperands(MCInst &Inst, unsigned N) const {
1375 assert(N == 1 && "Invalid number of operands!");
1376 Inst.addOperand(MCOperand::CreateImm(getCoproc()));
1379 void addCoprocOptionOperands(MCInst &Inst, unsigned N) const {
1380 assert(N == 1 && "Invalid number of operands!");
1381 Inst.addOperand(MCOperand::CreateImm(CoprocOption.Val));
1384 void addITMaskOperands(MCInst &Inst, unsigned N) const {
1385 assert(N == 1 && "Invalid number of operands!");
1386 Inst.addOperand(MCOperand::CreateImm(ITMask.Mask));
1389 void addITCondCodeOperands(MCInst &Inst, unsigned N) const {
1390 assert(N == 1 && "Invalid number of operands!");
1391 Inst.addOperand(MCOperand::CreateImm(unsigned(getCondCode())));
1394 void addCCOutOperands(MCInst &Inst, unsigned N) const {
1395 assert(N == 1 && "Invalid number of operands!");
1396 Inst.addOperand(MCOperand::CreateReg(getReg()));
1399 void addRegOperands(MCInst &Inst, unsigned N) const {
1400 assert(N == 1 && "Invalid number of operands!");
1401 Inst.addOperand(MCOperand::CreateReg(getReg()));
1404 void addRegShiftedRegOperands(MCInst &Inst, unsigned N) const {
1405 assert(N == 3 && "Invalid number of operands!");
1406 assert(isRegShiftedReg() &&
1407 "addRegShiftedRegOperands() on non RegShiftedReg!");
1408 Inst.addOperand(MCOperand::CreateReg(RegShiftedReg.SrcReg));
1409 Inst.addOperand(MCOperand::CreateReg(RegShiftedReg.ShiftReg));
1410 Inst.addOperand(MCOperand::CreateImm(
1411 ARM_AM::getSORegOpc(RegShiftedReg.ShiftTy, RegShiftedReg.ShiftImm)));
1414 void addRegShiftedImmOperands(MCInst &Inst, unsigned N) const {
1415 assert(N == 2 && "Invalid number of operands!");
1416 assert(isRegShiftedImm() &&
1417 "addRegShiftedImmOperands() on non RegShiftedImm!");
1418 Inst.addOperand(MCOperand::CreateReg(RegShiftedImm.SrcReg));
1419 Inst.addOperand(MCOperand::CreateImm(
1420 ARM_AM::getSORegOpc(RegShiftedImm.ShiftTy, RegShiftedImm.ShiftImm)));
1423 void addShifterImmOperands(MCInst &Inst, unsigned N) const {
1424 assert(N == 1 && "Invalid number of operands!");
1425 Inst.addOperand(MCOperand::CreateImm((ShifterImm.isASR << 5) |
1429 void addRegListOperands(MCInst &Inst, unsigned N) const {
1430 assert(N == 1 && "Invalid number of operands!");
1431 const SmallVectorImpl<unsigned> &RegList = getRegList();
1432 for (SmallVectorImpl<unsigned>::const_iterator
1433 I = RegList.begin(), E = RegList.end(); I != E; ++I)
1434 Inst.addOperand(MCOperand::CreateReg(*I));
1437 void addDPRRegListOperands(MCInst &Inst, unsigned N) const {
1438 addRegListOperands(Inst, N);
1441 void addSPRRegListOperands(MCInst &Inst, unsigned N) const {
1442 addRegListOperands(Inst, N);
1445 void addRotImmOperands(MCInst &Inst, unsigned N) const {
1446 assert(N == 1 && "Invalid number of operands!");
1447 // Encoded as val>>3. The printer handles display as 8, 16, 24.
1448 Inst.addOperand(MCOperand::CreateImm(RotImm.Imm >> 3));
1451 void addBitfieldOperands(MCInst &Inst, unsigned N) const {
1452 assert(N == 1 && "Invalid number of operands!");
1453 // Munge the lsb/width into a bitfield mask.
1454 unsigned lsb = Bitfield.LSB;
1455 unsigned width = Bitfield.Width;
1456 // Make a 32-bit mask w/ the referenced bits clear and all other bits set.
1457 uint32_t Mask = ~(((uint32_t)0xffffffff >> lsb) << (32 - width) >>
1458 (32 - (lsb + width)));
1459 Inst.addOperand(MCOperand::CreateImm(Mask));
1462 void addImmOperands(MCInst &Inst, unsigned N) const {
1463 assert(N == 1 && "Invalid number of operands!");
1464 addExpr(Inst, getImm());
1467 void addFBits16Operands(MCInst &Inst, unsigned N) const {
1468 assert(N == 1 && "Invalid number of operands!");
1469 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1470 Inst.addOperand(MCOperand::CreateImm(16 - CE->getValue()));
1473 void addFBits32Operands(MCInst &Inst, unsigned N) const {
1474 assert(N == 1 && "Invalid number of operands!");
1475 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1476 Inst.addOperand(MCOperand::CreateImm(32 - CE->getValue()));
1479 void addFPImmOperands(MCInst &Inst, unsigned N) const {
1480 assert(N == 1 && "Invalid number of operands!");
1481 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1482 int Val = ARM_AM::getFP32Imm(APInt(32, CE->getValue()));
1483 Inst.addOperand(MCOperand::CreateImm(Val));
1486 void addImm8s4Operands(MCInst &Inst, unsigned N) const {
1487 assert(N == 1 && "Invalid number of operands!");
1488 // FIXME: We really want to scale the value here, but the LDRD/STRD
1489 // instruction don't encode operands that way yet.
1490 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1491 Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
1494 void addImm0_1020s4Operands(MCInst &Inst, unsigned N) const {
1495 assert(N == 1 && "Invalid number of operands!");
1496 // The immediate is scaled by four in the encoding and is stored
1497 // in the MCInst as such. Lop off the low two bits here.
1498 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1499 Inst.addOperand(MCOperand::CreateImm(CE->getValue() / 4));
1502 void addImm0_508s4Operands(MCInst &Inst, unsigned N) const {
1503 assert(N == 1 && "Invalid number of operands!");
1504 // The immediate is scaled by four in the encoding and is stored
1505 // in the MCInst as such. Lop off the low two bits here.
1506 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1507 Inst.addOperand(MCOperand::CreateImm(CE->getValue() / 4));
1510 void addImm1_16Operands(MCInst &Inst, unsigned N) const {
1511 assert(N == 1 && "Invalid number of operands!");
1512 // The constant encodes as the immediate-1, and we store in the instruction
1513 // the bits as encoded, so subtract off one here.
1514 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1515 Inst.addOperand(MCOperand::CreateImm(CE->getValue() - 1));
1518 void addImm1_32Operands(MCInst &Inst, unsigned N) const {
1519 assert(N == 1 && "Invalid number of operands!");
1520 // The constant encodes as the immediate-1, and we store in the instruction
1521 // the bits as encoded, so subtract off one here.
1522 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1523 Inst.addOperand(MCOperand::CreateImm(CE->getValue() - 1));
1526 void addImmThumbSROperands(MCInst &Inst, unsigned N) const {
1527 assert(N == 1 && "Invalid number of operands!");
1528 // The constant encodes as the immediate, except for 32, which encodes as
1530 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1531 unsigned Imm = CE->getValue();
1532 Inst.addOperand(MCOperand::CreateImm((Imm == 32 ? 0 : Imm)));
1535 void addPKHASRImmOperands(MCInst &Inst, unsigned N) const {
1536 assert(N == 1 && "Invalid number of operands!");
1537 // An ASR value of 32 encodes as 0, so that's how we want to add it to
1538 // the instruction as well.
1539 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1540 int Val = CE->getValue();
1541 Inst.addOperand(MCOperand::CreateImm(Val == 32 ? 0 : Val));
1544 void addT2SOImmNotOperands(MCInst &Inst, unsigned N) const {
1545 assert(N == 1 && "Invalid number of operands!");
1546 // The operand is actually a t2_so_imm, but we have its bitwise
1547 // negation in the assembly source, so twiddle it here.
1548 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1549 Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
1552 void addT2SOImmNegOperands(MCInst &Inst, unsigned N) const {
1553 assert(N == 1 && "Invalid number of operands!");
1554 // The operand is actually a t2_so_imm, but we have its
1555 // negation in the assembly source, so twiddle it here.
1556 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1557 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1560 void addARMSOImmNotOperands(MCInst &Inst, unsigned N) const {
1561 assert(N == 1 && "Invalid number of operands!");
1562 // The operand is actually a so_imm, but we have its bitwise
1563 // negation in the assembly source, so twiddle it here.
1564 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1565 Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
1568 void addARMSOImmNegOperands(MCInst &Inst, unsigned N) const {
1569 assert(N == 1 && "Invalid number of operands!");
1570 // The operand is actually a so_imm, but we have its
1571 // negation in the assembly source, so twiddle it here.
1572 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1573 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1576 void addMemBarrierOptOperands(MCInst &Inst, unsigned N) const {
1577 assert(N == 1 && "Invalid number of operands!");
1578 Inst.addOperand(MCOperand::CreateImm(unsigned(getMemBarrierOpt())));
1581 void addMemNoOffsetOperands(MCInst &Inst, unsigned N) const {
1582 assert(N == 1 && "Invalid number of operands!");
1583 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1586 void addMemPCRelImm12Operands(MCInst &Inst, unsigned N) const {
1587 assert(N == 1 && "Invalid number of operands!");
1588 int32_t Imm = Memory.OffsetImm->getValue();
1589 // FIXME: Handle #-0
1590 if (Imm == INT32_MIN) Imm = 0;
1591 Inst.addOperand(MCOperand::CreateImm(Imm));
1594 void addAlignedMemoryOperands(MCInst &Inst, unsigned N) const {
1595 assert(N == 2 && "Invalid number of operands!");
1596 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1597 Inst.addOperand(MCOperand::CreateImm(Memory.Alignment));
1600 void addAddrMode2Operands(MCInst &Inst, unsigned N) const {
1601 assert(N == 3 && "Invalid number of operands!");
1602 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1603 if (!Memory.OffsetRegNum) {
1604 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1605 // Special case for #-0
1606 if (Val == INT32_MIN) Val = 0;
1607 if (Val < 0) Val = -Val;
1608 Val = ARM_AM::getAM2Opc(AddSub, Val, ARM_AM::no_shift);
1610 // For register offset, we encode the shift type and negation flag
1612 Val = ARM_AM::getAM2Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add,
1613 Memory.ShiftImm, Memory.ShiftType);
1615 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1616 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1617 Inst.addOperand(MCOperand::CreateImm(Val));
1620 void addAM2OffsetImmOperands(MCInst &Inst, unsigned N) const {
1621 assert(N == 2 && "Invalid number of operands!");
1622 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1623 assert(CE && "non-constant AM2OffsetImm operand!");
1624 int32_t Val = CE->getValue();
1625 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1626 // Special case for #-0
1627 if (Val == INT32_MIN) Val = 0;
1628 if (Val < 0) Val = -Val;
1629 Val = ARM_AM::getAM2Opc(AddSub, Val, ARM_AM::no_shift);
1630 Inst.addOperand(MCOperand::CreateReg(0));
1631 Inst.addOperand(MCOperand::CreateImm(Val));
1634 void addAddrMode3Operands(MCInst &Inst, unsigned N) const {
1635 assert(N == 3 && "Invalid number of operands!");
1636 // If we have an immediate that's not a constant, treat it as a label
1637 // reference needing a fixup. If it is a constant, it's something else
1638 // and we reject it.
1640 Inst.addOperand(MCOperand::CreateExpr(getImm()));
1641 Inst.addOperand(MCOperand::CreateReg(0));
1642 Inst.addOperand(MCOperand::CreateImm(0));
1646 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1647 if (!Memory.OffsetRegNum) {
1648 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1649 // Special case for #-0
1650 if (Val == INT32_MIN) Val = 0;
1651 if (Val < 0) Val = -Val;
1652 Val = ARM_AM::getAM3Opc(AddSub, Val);
1654 // For register offset, we encode the shift type and negation flag
1656 Val = ARM_AM::getAM3Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add, 0);
1658 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1659 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1660 Inst.addOperand(MCOperand::CreateImm(Val));
1663 void addAM3OffsetOperands(MCInst &Inst, unsigned N) const {
1664 assert(N == 2 && "Invalid number of operands!");
1665 if (Kind == k_PostIndexRegister) {
1667 ARM_AM::getAM3Opc(PostIdxReg.isAdd ? ARM_AM::add : ARM_AM::sub, 0);
1668 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
1669 Inst.addOperand(MCOperand::CreateImm(Val));
1674 const MCConstantExpr *CE = static_cast<const MCConstantExpr*>(getImm());
1675 int32_t Val = CE->getValue();
1676 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1677 // Special case for #-0
1678 if (Val == INT32_MIN) Val = 0;
1679 if (Val < 0) Val = -Val;
1680 Val = ARM_AM::getAM3Opc(AddSub, Val);
1681 Inst.addOperand(MCOperand::CreateReg(0));
1682 Inst.addOperand(MCOperand::CreateImm(Val));
1685 void addAddrMode5Operands(MCInst &Inst, unsigned N) const {
1686 assert(N == 2 && "Invalid number of operands!");
1687 // If we have an immediate that's not a constant, treat it as a label
1688 // reference needing a fixup. If it is a constant, it's something else
1689 // and we reject it.
1691 Inst.addOperand(MCOperand::CreateExpr(getImm()));
1692 Inst.addOperand(MCOperand::CreateImm(0));
1696 // The lower two bits are always zero and as such are not encoded.
1697 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() / 4 : 0;
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::getAM5Opc(AddSub, Val);
1703 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1704 Inst.addOperand(MCOperand::CreateImm(Val));
1707 void addMemImm8s4OffsetOperands(MCInst &Inst, unsigned N) const {
1708 assert(N == 2 && "Invalid number of operands!");
1709 // If we have an immediate that's not a constant, treat it as a label
1710 // reference needing a fixup. If it is a constant, it's something else
1711 // and we reject it.
1713 Inst.addOperand(MCOperand::CreateExpr(getImm()));
1714 Inst.addOperand(MCOperand::CreateImm(0));
1718 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1719 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1720 Inst.addOperand(MCOperand::CreateImm(Val));
1723 void addMemImm0_1020s4OffsetOperands(MCInst &Inst, unsigned N) const {
1724 assert(N == 2 && "Invalid number of operands!");
1725 // The lower two bits are always zero and as such are not encoded.
1726 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() / 4 : 0;
1727 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1728 Inst.addOperand(MCOperand::CreateImm(Val));
1731 void addMemImm8OffsetOperands(MCInst &Inst, unsigned N) const {
1732 assert(N == 2 && "Invalid number of operands!");
1733 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1734 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1735 Inst.addOperand(MCOperand::CreateImm(Val));
1738 void addMemPosImm8OffsetOperands(MCInst &Inst, unsigned N) const {
1739 addMemImm8OffsetOperands(Inst, N);
1742 void addMemNegImm8OffsetOperands(MCInst &Inst, unsigned N) const {
1743 addMemImm8OffsetOperands(Inst, N);
1746 void addMemUImm12OffsetOperands(MCInst &Inst, unsigned N) const {
1747 assert(N == 2 && "Invalid number of operands!");
1748 // If this is an immediate, it's a label reference.
1750 addExpr(Inst, getImm());
1751 Inst.addOperand(MCOperand::CreateImm(0));
1755 // Otherwise, it's a normal memory reg+offset.
1756 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1757 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1758 Inst.addOperand(MCOperand::CreateImm(Val));
1761 void addMemImm12OffsetOperands(MCInst &Inst, unsigned N) const {
1762 assert(N == 2 && "Invalid number of operands!");
1763 // If this is an immediate, it's a label reference.
1765 addExpr(Inst, getImm());
1766 Inst.addOperand(MCOperand::CreateImm(0));
1770 // Otherwise, it's a normal memory reg+offset.
1771 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1772 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1773 Inst.addOperand(MCOperand::CreateImm(Val));
1776 void addMemTBBOperands(MCInst &Inst, unsigned N) const {
1777 assert(N == 2 && "Invalid number of operands!");
1778 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1779 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1782 void addMemTBHOperands(MCInst &Inst, unsigned N) const {
1783 assert(N == 2 && "Invalid number of operands!");
1784 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1785 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1788 void addMemRegOffsetOperands(MCInst &Inst, unsigned N) const {
1789 assert(N == 3 && "Invalid number of operands!");
1791 ARM_AM::getAM2Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add,
1792 Memory.ShiftImm, Memory.ShiftType);
1793 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1794 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1795 Inst.addOperand(MCOperand::CreateImm(Val));
1798 void addT2MemRegOffsetOperands(MCInst &Inst, unsigned N) const {
1799 assert(N == 3 && "Invalid number of operands!");
1800 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1801 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1802 Inst.addOperand(MCOperand::CreateImm(Memory.ShiftImm));
1805 void addMemThumbRROperands(MCInst &Inst, unsigned N) const {
1806 assert(N == 2 && "Invalid number of operands!");
1807 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1808 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1811 void addMemThumbRIs4Operands(MCInst &Inst, unsigned N) const {
1812 assert(N == 2 && "Invalid number of operands!");
1813 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 4) : 0;
1814 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1815 Inst.addOperand(MCOperand::CreateImm(Val));
1818 void addMemThumbRIs2Operands(MCInst &Inst, unsigned N) const {
1819 assert(N == 2 && "Invalid number of operands!");
1820 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 2) : 0;
1821 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1822 Inst.addOperand(MCOperand::CreateImm(Val));
1825 void addMemThumbRIs1Operands(MCInst &Inst, unsigned N) const {
1826 assert(N == 2 && "Invalid number of operands!");
1827 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue()) : 0;
1828 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1829 Inst.addOperand(MCOperand::CreateImm(Val));
1832 void addMemThumbSPIOperands(MCInst &Inst, unsigned N) const {
1833 assert(N == 2 && "Invalid number of operands!");
1834 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 4) : 0;
1835 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1836 Inst.addOperand(MCOperand::CreateImm(Val));
1839 void addPostIdxImm8Operands(MCInst &Inst, unsigned N) const {
1840 assert(N == 1 && "Invalid number of operands!");
1841 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1842 assert(CE && "non-constant post-idx-imm8 operand!");
1843 int Imm = CE->getValue();
1844 bool isAdd = Imm >= 0;
1845 if (Imm == INT32_MIN) Imm = 0;
1846 Imm = (Imm < 0 ? -Imm : Imm) | (int)isAdd << 8;
1847 Inst.addOperand(MCOperand::CreateImm(Imm));
1850 void addPostIdxImm8s4Operands(MCInst &Inst, unsigned N) const {
1851 assert(N == 1 && "Invalid number of operands!");
1852 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1853 assert(CE && "non-constant post-idx-imm8s4 operand!");
1854 int Imm = CE->getValue();
1855 bool isAdd = Imm >= 0;
1856 if (Imm == INT32_MIN) Imm = 0;
1857 // Immediate is scaled by 4.
1858 Imm = ((Imm < 0 ? -Imm : Imm) / 4) | (int)isAdd << 8;
1859 Inst.addOperand(MCOperand::CreateImm(Imm));
1862 void addPostIdxRegOperands(MCInst &Inst, unsigned N) const {
1863 assert(N == 2 && "Invalid number of operands!");
1864 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
1865 Inst.addOperand(MCOperand::CreateImm(PostIdxReg.isAdd));
1868 void addPostIdxRegShiftedOperands(MCInst &Inst, unsigned N) const {
1869 assert(N == 2 && "Invalid number of operands!");
1870 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
1871 // The sign, shift type, and shift amount are encoded in a single operand
1872 // using the AM2 encoding helpers.
1873 ARM_AM::AddrOpc opc = PostIdxReg.isAdd ? ARM_AM::add : ARM_AM::sub;
1874 unsigned Imm = ARM_AM::getAM2Opc(opc, PostIdxReg.ShiftImm,
1875 PostIdxReg.ShiftTy);
1876 Inst.addOperand(MCOperand::CreateImm(Imm));
1879 void addMSRMaskOperands(MCInst &Inst, unsigned N) const {
1880 assert(N == 1 && "Invalid number of operands!");
1881 Inst.addOperand(MCOperand::CreateImm(unsigned(getMSRMask())));
1884 void addProcIFlagsOperands(MCInst &Inst, unsigned N) const {
1885 assert(N == 1 && "Invalid number of operands!");
1886 Inst.addOperand(MCOperand::CreateImm(unsigned(getProcIFlags())));
1889 void addVecListOperands(MCInst &Inst, unsigned N) const {
1890 assert(N == 1 && "Invalid number of operands!");
1891 Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
1894 void addVecListIndexedOperands(MCInst &Inst, unsigned N) const {
1895 assert(N == 2 && "Invalid number of operands!");
1896 Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
1897 Inst.addOperand(MCOperand::CreateImm(VectorList.LaneIndex));
1900 void addVectorIndex8Operands(MCInst &Inst, unsigned N) const {
1901 assert(N == 1 && "Invalid number of operands!");
1902 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
1905 void addVectorIndex16Operands(MCInst &Inst, unsigned N) const {
1906 assert(N == 1 && "Invalid number of operands!");
1907 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
1910 void addVectorIndex32Operands(MCInst &Inst, unsigned N) const {
1911 assert(N == 1 && "Invalid number of operands!");
1912 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
1915 void addNEONi8splatOperands(MCInst &Inst, unsigned N) const {
1916 assert(N == 1 && "Invalid number of operands!");
1917 // The immediate encodes the type of constant as well as the value.
1918 // Mask in that this is an i8 splat.
1919 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1920 Inst.addOperand(MCOperand::CreateImm(CE->getValue() | 0xe00));
1923 void addNEONi16splatOperands(MCInst &Inst, unsigned N) const {
1924 assert(N == 1 && "Invalid number of operands!");
1925 // The immediate encodes the type of constant as well as the value.
1926 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1927 unsigned Value = CE->getValue();
1929 Value = (Value >> 8) | 0xa00;
1932 Inst.addOperand(MCOperand::CreateImm(Value));
1935 void addNEONi32splatOperands(MCInst &Inst, unsigned N) const {
1936 assert(N == 1 && "Invalid number of operands!");
1937 // The immediate encodes the type of constant as well as the value.
1938 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1939 unsigned Value = CE->getValue();
1940 if (Value >= 256 && Value <= 0xff00)
1941 Value = (Value >> 8) | 0x200;
1942 else if (Value > 0xffff && Value <= 0xff0000)
1943 Value = (Value >> 16) | 0x400;
1944 else if (Value > 0xffffff)
1945 Value = (Value >> 24) | 0x600;
1946 Inst.addOperand(MCOperand::CreateImm(Value));
1949 void addNEONi32vmovOperands(MCInst &Inst, unsigned N) const {
1950 assert(N == 1 && "Invalid number of operands!");
1951 // The immediate encodes the type of constant as well as the value.
1952 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1953 unsigned Value = CE->getValue();
1954 if (Value >= 256 && Value <= 0xffff)
1955 Value = (Value >> 8) | ((Value & 0xff) ? 0xc00 : 0x200);
1956 else if (Value > 0xffff && Value <= 0xffffff)
1957 Value = (Value >> 16) | ((Value & 0xff) ? 0xd00 : 0x400);
1958 else if (Value > 0xffffff)
1959 Value = (Value >> 24) | 0x600;
1960 Inst.addOperand(MCOperand::CreateImm(Value));
1963 void addNEONi32vmovNegOperands(MCInst &Inst, unsigned N) const {
1964 assert(N == 1 && "Invalid number of operands!");
1965 // The immediate encodes the type of constant as well as the value.
1966 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1967 unsigned Value = ~CE->getValue();
1968 if (Value >= 256 && Value <= 0xffff)
1969 Value = (Value >> 8) | ((Value & 0xff) ? 0xc00 : 0x200);
1970 else if (Value > 0xffff && Value <= 0xffffff)
1971 Value = (Value >> 16) | ((Value & 0xff) ? 0xd00 : 0x400);
1972 else if (Value > 0xffffff)
1973 Value = (Value >> 24) | 0x600;
1974 Inst.addOperand(MCOperand::CreateImm(Value));
1977 void addNEONi64splatOperands(MCInst &Inst, unsigned N) const {
1978 assert(N == 1 && "Invalid number of operands!");
1979 // The immediate encodes the type of constant as well as the value.
1980 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1981 uint64_t Value = CE->getValue();
1983 for (unsigned i = 0; i < 8; ++i, Value >>= 8) {
1984 Imm |= (Value & 1) << i;
1986 Inst.addOperand(MCOperand::CreateImm(Imm | 0x1e00));
1989 virtual void print(raw_ostream &OS) const;
1991 static ARMOperand *CreateITMask(unsigned Mask, SMLoc S) {
1992 ARMOperand *Op = new ARMOperand(k_ITCondMask);
1993 Op->ITMask.Mask = Mask;
1999 static ARMOperand *CreateCondCode(ARMCC::CondCodes CC, SMLoc S) {
2000 ARMOperand *Op = new ARMOperand(k_CondCode);
2007 static ARMOperand *CreateCoprocNum(unsigned CopVal, SMLoc S) {
2008 ARMOperand *Op = new ARMOperand(k_CoprocNum);
2009 Op->Cop.Val = CopVal;
2015 static ARMOperand *CreateCoprocReg(unsigned CopVal, SMLoc S) {
2016 ARMOperand *Op = new ARMOperand(k_CoprocReg);
2017 Op->Cop.Val = CopVal;
2023 static ARMOperand *CreateCoprocOption(unsigned Val, SMLoc S, SMLoc E) {
2024 ARMOperand *Op = new ARMOperand(k_CoprocOption);
2031 static ARMOperand *CreateCCOut(unsigned RegNum, SMLoc S) {
2032 ARMOperand *Op = new ARMOperand(k_CCOut);
2033 Op->Reg.RegNum = RegNum;
2039 static ARMOperand *CreateToken(StringRef Str, SMLoc S) {
2040 ARMOperand *Op = new ARMOperand(k_Token);
2041 Op->Tok.Data = Str.data();
2042 Op->Tok.Length = Str.size();
2048 static ARMOperand *CreateReg(unsigned RegNum, SMLoc S, SMLoc E) {
2049 ARMOperand *Op = new ARMOperand(k_Register);
2050 Op->Reg.RegNum = RegNum;
2056 static ARMOperand *CreateShiftedRegister(ARM_AM::ShiftOpc ShTy,
2061 ARMOperand *Op = new ARMOperand(k_ShiftedRegister);
2062 Op->RegShiftedReg.ShiftTy = ShTy;
2063 Op->RegShiftedReg.SrcReg = SrcReg;
2064 Op->RegShiftedReg.ShiftReg = ShiftReg;
2065 Op->RegShiftedReg.ShiftImm = ShiftImm;
2071 static ARMOperand *CreateShiftedImmediate(ARM_AM::ShiftOpc ShTy,
2075 ARMOperand *Op = new ARMOperand(k_ShiftedImmediate);
2076 Op->RegShiftedImm.ShiftTy = ShTy;
2077 Op->RegShiftedImm.SrcReg = SrcReg;
2078 Op->RegShiftedImm.ShiftImm = ShiftImm;
2084 static ARMOperand *CreateShifterImm(bool isASR, unsigned Imm,
2086 ARMOperand *Op = new ARMOperand(k_ShifterImmediate);
2087 Op->ShifterImm.isASR = isASR;
2088 Op->ShifterImm.Imm = Imm;
2094 static ARMOperand *CreateRotImm(unsigned Imm, SMLoc S, SMLoc E) {
2095 ARMOperand *Op = new ARMOperand(k_RotateImmediate);
2096 Op->RotImm.Imm = Imm;
2102 static ARMOperand *CreateBitfield(unsigned LSB, unsigned Width,
2104 ARMOperand *Op = new ARMOperand(k_BitfieldDescriptor);
2105 Op->Bitfield.LSB = LSB;
2106 Op->Bitfield.Width = Width;
2113 CreateRegList(const SmallVectorImpl<std::pair<unsigned, SMLoc> > &Regs,
2114 SMLoc StartLoc, SMLoc EndLoc) {
2115 KindTy Kind = k_RegisterList;
2117 if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Regs.front().first))
2118 Kind = k_DPRRegisterList;
2119 else if (ARMMCRegisterClasses[ARM::SPRRegClassID].
2120 contains(Regs.front().first))
2121 Kind = k_SPRRegisterList;
2123 ARMOperand *Op = new ARMOperand(Kind);
2124 for (SmallVectorImpl<std::pair<unsigned, SMLoc> >::const_iterator
2125 I = Regs.begin(), E = Regs.end(); I != E; ++I)
2126 Op->Registers.push_back(I->first);
2127 array_pod_sort(Op->Registers.begin(), Op->Registers.end());
2128 Op->StartLoc = StartLoc;
2129 Op->EndLoc = EndLoc;
2133 static ARMOperand *CreateVectorList(unsigned RegNum, unsigned Count,
2134 bool isDoubleSpaced, SMLoc S, SMLoc E) {
2135 ARMOperand *Op = new ARMOperand(k_VectorList);
2136 Op->VectorList.RegNum = RegNum;
2137 Op->VectorList.Count = Count;
2138 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2144 static ARMOperand *CreateVectorListAllLanes(unsigned RegNum, unsigned Count,
2145 bool isDoubleSpaced,
2147 ARMOperand *Op = new ARMOperand(k_VectorListAllLanes);
2148 Op->VectorList.RegNum = RegNum;
2149 Op->VectorList.Count = Count;
2150 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2156 static ARMOperand *CreateVectorListIndexed(unsigned RegNum, unsigned Count,
2158 bool isDoubleSpaced,
2160 ARMOperand *Op = new ARMOperand(k_VectorListIndexed);
2161 Op->VectorList.RegNum = RegNum;
2162 Op->VectorList.Count = Count;
2163 Op->VectorList.LaneIndex = Index;
2164 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2170 static ARMOperand *CreateVectorIndex(unsigned Idx, SMLoc S, SMLoc E,
2172 ARMOperand *Op = new ARMOperand(k_VectorIndex);
2173 Op->VectorIndex.Val = Idx;
2179 static ARMOperand *CreateImm(const MCExpr *Val, SMLoc S, SMLoc E) {
2180 ARMOperand *Op = new ARMOperand(k_Immediate);
2187 static ARMOperand *CreateMem(unsigned BaseRegNum,
2188 const MCConstantExpr *OffsetImm,
2189 unsigned OffsetRegNum,
2190 ARM_AM::ShiftOpc ShiftType,
2195 ARMOperand *Op = new ARMOperand(k_Memory);
2196 Op->Memory.BaseRegNum = BaseRegNum;
2197 Op->Memory.OffsetImm = OffsetImm;
2198 Op->Memory.OffsetRegNum = OffsetRegNum;
2199 Op->Memory.ShiftType = ShiftType;
2200 Op->Memory.ShiftImm = ShiftImm;
2201 Op->Memory.Alignment = Alignment;
2202 Op->Memory.isNegative = isNegative;
2208 static ARMOperand *CreatePostIdxReg(unsigned RegNum, bool isAdd,
2209 ARM_AM::ShiftOpc ShiftTy,
2212 ARMOperand *Op = new ARMOperand(k_PostIndexRegister);
2213 Op->PostIdxReg.RegNum = RegNum;
2214 Op->PostIdxReg.isAdd = isAdd;
2215 Op->PostIdxReg.ShiftTy = ShiftTy;
2216 Op->PostIdxReg.ShiftImm = ShiftImm;
2222 static ARMOperand *CreateMemBarrierOpt(ARM_MB::MemBOpt Opt, SMLoc S) {
2223 ARMOperand *Op = new ARMOperand(k_MemBarrierOpt);
2224 Op->MBOpt.Val = Opt;
2230 static ARMOperand *CreateProcIFlags(ARM_PROC::IFlags IFlags, SMLoc S) {
2231 ARMOperand *Op = new ARMOperand(k_ProcIFlags);
2232 Op->IFlags.Val = IFlags;
2238 static ARMOperand *CreateMSRMask(unsigned MMask, SMLoc S) {
2239 ARMOperand *Op = new ARMOperand(k_MSRMask);
2240 Op->MMask.Val = MMask;
2247 } // end anonymous namespace.
2249 void ARMOperand::print(raw_ostream &OS) const {
2252 OS << "<ARMCC::" << ARMCondCodeToString(getCondCode()) << ">";
2255 OS << "<ccout " << getReg() << ">";
2257 case k_ITCondMask: {
2258 static const char *MaskStr[] = {
2259 "()", "(t)", "(e)", "(tt)", "(et)", "(te)", "(ee)", "(ttt)", "(ett)",
2260 "(tet)", "(eet)", "(tte)", "(ete)", "(tee)", "(eee)"
2262 assert((ITMask.Mask & 0xf) == ITMask.Mask);
2263 OS << "<it-mask " << MaskStr[ITMask.Mask] << ">";
2267 OS << "<coprocessor number: " << getCoproc() << ">";
2270 OS << "<coprocessor register: " << getCoproc() << ">";
2272 case k_CoprocOption:
2273 OS << "<coprocessor option: " << CoprocOption.Val << ">";
2276 OS << "<mask: " << getMSRMask() << ">";
2279 getImm()->print(OS);
2281 case k_MemBarrierOpt:
2282 OS << "<ARM_MB::" << MemBOptToString(getMemBarrierOpt()) << ">";
2286 << " base:" << Memory.BaseRegNum;
2289 case k_PostIndexRegister:
2290 OS << "post-idx register " << (PostIdxReg.isAdd ? "" : "-")
2291 << PostIdxReg.RegNum;
2292 if (PostIdxReg.ShiftTy != ARM_AM::no_shift)
2293 OS << ARM_AM::getShiftOpcStr(PostIdxReg.ShiftTy) << " "
2294 << PostIdxReg.ShiftImm;
2297 case k_ProcIFlags: {
2298 OS << "<ARM_PROC::";
2299 unsigned IFlags = getProcIFlags();
2300 for (int i=2; i >= 0; --i)
2301 if (IFlags & (1 << i))
2302 OS << ARM_PROC::IFlagsToString(1 << i);
2307 OS << "<register " << getReg() << ">";
2309 case k_ShifterImmediate:
2310 OS << "<shift " << (ShifterImm.isASR ? "asr" : "lsl")
2311 << " #" << ShifterImm.Imm << ">";
2313 case k_ShiftedRegister:
2314 OS << "<so_reg_reg "
2315 << RegShiftedReg.SrcReg << " "
2316 << ARM_AM::getShiftOpcStr(RegShiftedReg.ShiftTy)
2317 << " " << RegShiftedReg.ShiftReg << ">";
2319 case k_ShiftedImmediate:
2320 OS << "<so_reg_imm "
2321 << RegShiftedImm.SrcReg << " "
2322 << ARM_AM::getShiftOpcStr(RegShiftedImm.ShiftTy)
2323 << " #" << RegShiftedImm.ShiftImm << ">";
2325 case k_RotateImmediate:
2326 OS << "<ror " << " #" << (RotImm.Imm * 8) << ">";
2328 case k_BitfieldDescriptor:
2329 OS << "<bitfield " << "lsb: " << Bitfield.LSB
2330 << ", width: " << Bitfield.Width << ">";
2332 case k_RegisterList:
2333 case k_DPRRegisterList:
2334 case k_SPRRegisterList: {
2335 OS << "<register_list ";
2337 const SmallVectorImpl<unsigned> &RegList = getRegList();
2338 for (SmallVectorImpl<unsigned>::const_iterator
2339 I = RegList.begin(), E = RegList.end(); I != E; ) {
2341 if (++I < E) OS << ", ";
2348 OS << "<vector_list " << VectorList.Count << " * "
2349 << VectorList.RegNum << ">";
2351 case k_VectorListAllLanes:
2352 OS << "<vector_list(all lanes) " << VectorList.Count << " * "
2353 << VectorList.RegNum << ">";
2355 case k_VectorListIndexed:
2356 OS << "<vector_list(lane " << VectorList.LaneIndex << ") "
2357 << VectorList.Count << " * " << VectorList.RegNum << ">";
2360 OS << "'" << getToken() << "'";
2363 OS << "<vectorindex " << getVectorIndex() << ">";
2368 /// @name Auto-generated Match Functions
2371 static unsigned MatchRegisterName(StringRef Name);
2375 bool ARMAsmParser::ParseRegister(unsigned &RegNo,
2376 SMLoc &StartLoc, SMLoc &EndLoc) {
2377 StartLoc = Parser.getTok().getLoc();
2378 RegNo = tryParseRegister();
2379 EndLoc = Parser.getTok().getLoc();
2381 return (RegNo == (unsigned)-1);
2384 /// Try to parse a register name. The token must be an Identifier when called,
2385 /// and if it is a register name the token is eaten and the register number is
2386 /// returned. Otherwise return -1.
2388 int ARMAsmParser::tryParseRegister() {
2389 const AsmToken &Tok = Parser.getTok();
2390 if (Tok.isNot(AsmToken::Identifier)) return -1;
2392 std::string lowerCase = Tok.getString().lower();
2393 unsigned RegNum = MatchRegisterName(lowerCase);
2395 RegNum = StringSwitch<unsigned>(lowerCase)
2396 .Case("r13", ARM::SP)
2397 .Case("r14", ARM::LR)
2398 .Case("r15", ARM::PC)
2399 .Case("ip", ARM::R12)
2400 // Additional register name aliases for 'gas' compatibility.
2401 .Case("a1", ARM::R0)
2402 .Case("a2", ARM::R1)
2403 .Case("a3", ARM::R2)
2404 .Case("a4", ARM::R3)
2405 .Case("v1", ARM::R4)
2406 .Case("v2", ARM::R5)
2407 .Case("v3", ARM::R6)
2408 .Case("v4", ARM::R7)
2409 .Case("v5", ARM::R8)
2410 .Case("v6", ARM::R9)
2411 .Case("v7", ARM::R10)
2412 .Case("v8", ARM::R11)
2413 .Case("sb", ARM::R9)
2414 .Case("sl", ARM::R10)
2415 .Case("fp", ARM::R11)
2419 // Check for aliases registered via .req. Canonicalize to lower case.
2420 // That's more consistent since register names are case insensitive, and
2421 // it's how the original entry was passed in from MC/MCParser/AsmParser.
2422 StringMap<unsigned>::const_iterator Entry = RegisterReqs.find(lowerCase);
2423 // If no match, return failure.
2424 if (Entry == RegisterReqs.end())
2426 Parser.Lex(); // Eat identifier token.
2427 return Entry->getValue();
2430 Parser.Lex(); // Eat identifier token.
2435 // Try to parse a shifter (e.g., "lsl <amt>"). On success, return 0.
2436 // If a recoverable error occurs, return 1. If an irrecoverable error
2437 // occurs, return -1. An irrecoverable error is one where tokens have been
2438 // consumed in the process of trying to parse the shifter (i.e., when it is
2439 // indeed a shifter operand, but malformed).
2440 int ARMAsmParser::tryParseShiftRegister(
2441 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2442 SMLoc S = Parser.getTok().getLoc();
2443 const AsmToken &Tok = Parser.getTok();
2444 assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier");
2446 std::string lowerCase = Tok.getString().lower();
2447 ARM_AM::ShiftOpc ShiftTy = StringSwitch<ARM_AM::ShiftOpc>(lowerCase)
2448 .Case("asl", ARM_AM::lsl)
2449 .Case("lsl", ARM_AM::lsl)
2450 .Case("lsr", ARM_AM::lsr)
2451 .Case("asr", ARM_AM::asr)
2452 .Case("ror", ARM_AM::ror)
2453 .Case("rrx", ARM_AM::rrx)
2454 .Default(ARM_AM::no_shift);
2456 if (ShiftTy == ARM_AM::no_shift)
2459 Parser.Lex(); // Eat the operator.
2461 // The source register for the shift has already been added to the
2462 // operand list, so we need to pop it off and combine it into the shifted
2463 // register operand instead.
2464 OwningPtr<ARMOperand> PrevOp((ARMOperand*)Operands.pop_back_val());
2465 if (!PrevOp->isReg())
2466 return Error(PrevOp->getStartLoc(), "shift must be of a register");
2467 int SrcReg = PrevOp->getReg();
2470 if (ShiftTy == ARM_AM::rrx) {
2471 // RRX Doesn't have an explicit shift amount. The encoder expects
2472 // the shift register to be the same as the source register. Seems odd,
2476 // Figure out if this is shifted by a constant or a register (for non-RRX).
2477 if (Parser.getTok().is(AsmToken::Hash) ||
2478 Parser.getTok().is(AsmToken::Dollar)) {
2479 Parser.Lex(); // Eat hash.
2480 SMLoc ImmLoc = Parser.getTok().getLoc();
2481 const MCExpr *ShiftExpr = 0;
2482 if (getParser().ParseExpression(ShiftExpr)) {
2483 Error(ImmLoc, "invalid immediate shift value");
2486 // The expression must be evaluatable as an immediate.
2487 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftExpr);
2489 Error(ImmLoc, "invalid immediate shift value");
2492 // Range check the immediate.
2493 // lsl, ror: 0 <= imm <= 31
2494 // lsr, asr: 0 <= imm <= 32
2495 Imm = CE->getValue();
2497 ((ShiftTy == ARM_AM::lsl || ShiftTy == ARM_AM::ror) && Imm > 31) ||
2498 ((ShiftTy == ARM_AM::lsr || ShiftTy == ARM_AM::asr) && Imm > 32)) {
2499 Error(ImmLoc, "immediate shift value out of range");
2502 // shift by zero is a nop. Always send it through as lsl.
2503 // ('as' compatibility)
2505 ShiftTy = ARM_AM::lsl;
2506 } else if (Parser.getTok().is(AsmToken::Identifier)) {
2507 ShiftReg = tryParseRegister();
2508 SMLoc L = Parser.getTok().getLoc();
2509 if (ShiftReg == -1) {
2510 Error (L, "expected immediate or register in shift operand");
2514 Error (Parser.getTok().getLoc(),
2515 "expected immediate or register in shift operand");
2520 if (ShiftReg && ShiftTy != ARM_AM::rrx)
2521 Operands.push_back(ARMOperand::CreateShiftedRegister(ShiftTy, SrcReg,
2523 S, Parser.getTok().getLoc()));
2525 Operands.push_back(ARMOperand::CreateShiftedImmediate(ShiftTy, SrcReg, Imm,
2526 S, Parser.getTok().getLoc()));
2532 /// Try to parse a register name. The token must be an Identifier when called.
2533 /// If it's a register, an AsmOperand is created. Another AsmOperand is created
2534 /// if there is a "writeback". 'true' if it's not a register.
2536 /// TODO this is likely to change to allow different register types and or to
2537 /// parse for a specific register type.
2539 tryParseRegisterWithWriteBack(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2540 SMLoc S = Parser.getTok().getLoc();
2541 int RegNo = tryParseRegister();
2545 Operands.push_back(ARMOperand::CreateReg(RegNo, S, Parser.getTok().getLoc()));
2547 const AsmToken &ExclaimTok = Parser.getTok();
2548 if (ExclaimTok.is(AsmToken::Exclaim)) {
2549 Operands.push_back(ARMOperand::CreateToken(ExclaimTok.getString(),
2550 ExclaimTok.getLoc()));
2551 Parser.Lex(); // Eat exclaim token
2555 // Also check for an index operand. This is only legal for vector registers,
2556 // but that'll get caught OK in operand matching, so we don't need to
2557 // explicitly filter everything else out here.
2558 if (Parser.getTok().is(AsmToken::LBrac)) {
2559 SMLoc SIdx = Parser.getTok().getLoc();
2560 Parser.Lex(); // Eat left bracket token.
2562 const MCExpr *ImmVal;
2563 if (getParser().ParseExpression(ImmVal))
2565 const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(ImmVal);
2567 return TokError("immediate value expected for vector index");
2569 SMLoc E = Parser.getTok().getLoc();
2570 if (Parser.getTok().isNot(AsmToken::RBrac))
2571 return Error(E, "']' expected");
2573 Parser.Lex(); // Eat right bracket token.
2575 Operands.push_back(ARMOperand::CreateVectorIndex(MCE->getValue(),
2583 /// MatchCoprocessorOperandName - Try to parse an coprocessor related
2584 /// instruction with a symbolic operand name. Example: "p1", "p7", "c3",
2586 static int MatchCoprocessorOperandName(StringRef Name, char CoprocOp) {
2587 // Use the same layout as the tablegen'erated register name matcher. Ugly,
2589 switch (Name.size()) {
2592 if (Name[0] != CoprocOp)
2608 if (Name[0] != CoprocOp || Name[1] != '1')
2612 case '0': return 10;
2613 case '1': return 11;
2614 case '2': return 12;
2615 case '3': return 13;
2616 case '4': return 14;
2617 case '5': return 15;
2622 /// parseITCondCode - Try to parse a condition code for an IT instruction.
2623 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2624 parseITCondCode(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2625 SMLoc S = Parser.getTok().getLoc();
2626 const AsmToken &Tok = Parser.getTok();
2627 if (!Tok.is(AsmToken::Identifier))
2628 return MatchOperand_NoMatch;
2629 unsigned CC = StringSwitch<unsigned>(Tok.getString())
2630 .Case("eq", ARMCC::EQ)
2631 .Case("ne", ARMCC::NE)
2632 .Case("hs", ARMCC::HS)
2633 .Case("cs", ARMCC::HS)
2634 .Case("lo", ARMCC::LO)
2635 .Case("cc", ARMCC::LO)
2636 .Case("mi", ARMCC::MI)
2637 .Case("pl", ARMCC::PL)
2638 .Case("vs", ARMCC::VS)
2639 .Case("vc", ARMCC::VC)
2640 .Case("hi", ARMCC::HI)
2641 .Case("ls", ARMCC::LS)
2642 .Case("ge", ARMCC::GE)
2643 .Case("lt", ARMCC::LT)
2644 .Case("gt", ARMCC::GT)
2645 .Case("le", ARMCC::LE)
2646 .Case("al", ARMCC::AL)
2649 return MatchOperand_NoMatch;
2650 Parser.Lex(); // Eat the token.
2652 Operands.push_back(ARMOperand::CreateCondCode(ARMCC::CondCodes(CC), S));
2654 return MatchOperand_Success;
2657 /// parseCoprocNumOperand - Try to parse an coprocessor number operand. The
2658 /// token must be an Identifier when called, and if it is a coprocessor
2659 /// number, the token is eaten and the operand is added to the operand list.
2660 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2661 parseCoprocNumOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2662 SMLoc S = Parser.getTok().getLoc();
2663 const AsmToken &Tok = Parser.getTok();
2664 if (Tok.isNot(AsmToken::Identifier))
2665 return MatchOperand_NoMatch;
2667 int Num = MatchCoprocessorOperandName(Tok.getString(), 'p');
2669 return MatchOperand_NoMatch;
2671 Parser.Lex(); // Eat identifier token.
2672 Operands.push_back(ARMOperand::CreateCoprocNum(Num, S));
2673 return MatchOperand_Success;
2676 /// parseCoprocRegOperand - Try to parse an coprocessor register operand. The
2677 /// token must be an Identifier when called, and if it is a coprocessor
2678 /// number, the token is eaten and the operand is added to the operand list.
2679 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2680 parseCoprocRegOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2681 SMLoc S = Parser.getTok().getLoc();
2682 const AsmToken &Tok = Parser.getTok();
2683 if (Tok.isNot(AsmToken::Identifier))
2684 return MatchOperand_NoMatch;
2686 int Reg = MatchCoprocessorOperandName(Tok.getString(), 'c');
2688 return MatchOperand_NoMatch;
2690 Parser.Lex(); // Eat identifier token.
2691 Operands.push_back(ARMOperand::CreateCoprocReg(Reg, S));
2692 return MatchOperand_Success;
2695 /// parseCoprocOptionOperand - Try to parse an coprocessor option operand.
2696 /// coproc_option : '{' imm0_255 '}'
2697 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2698 parseCoprocOptionOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2699 SMLoc S = Parser.getTok().getLoc();
2701 // If this isn't a '{', this isn't a coprocessor immediate operand.
2702 if (Parser.getTok().isNot(AsmToken::LCurly))
2703 return MatchOperand_NoMatch;
2704 Parser.Lex(); // Eat the '{'
2707 SMLoc Loc = Parser.getTok().getLoc();
2708 if (getParser().ParseExpression(Expr)) {
2709 Error(Loc, "illegal expression");
2710 return MatchOperand_ParseFail;
2712 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
2713 if (!CE || CE->getValue() < 0 || CE->getValue() > 255) {
2714 Error(Loc, "coprocessor option must be an immediate in range [0, 255]");
2715 return MatchOperand_ParseFail;
2717 int Val = CE->getValue();
2719 // Check for and consume the closing '}'
2720 if (Parser.getTok().isNot(AsmToken::RCurly))
2721 return MatchOperand_ParseFail;
2722 SMLoc E = Parser.getTok().getLoc();
2723 Parser.Lex(); // Eat the '}'
2725 Operands.push_back(ARMOperand::CreateCoprocOption(Val, S, E));
2726 return MatchOperand_Success;
2729 // For register list parsing, we need to map from raw GPR register numbering
2730 // to the enumeration values. The enumeration values aren't sorted by
2731 // register number due to our using "sp", "lr" and "pc" as canonical names.
2732 static unsigned getNextRegister(unsigned Reg) {
2733 // If this is a GPR, we need to do it manually, otherwise we can rely
2734 // on the sort ordering of the enumeration since the other reg-classes
2736 if (!ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
2739 default: llvm_unreachable("Invalid GPR number!");
2740 case ARM::R0: return ARM::R1; case ARM::R1: return ARM::R2;
2741 case ARM::R2: return ARM::R3; case ARM::R3: return ARM::R4;
2742 case ARM::R4: return ARM::R5; case ARM::R5: return ARM::R6;
2743 case ARM::R6: return ARM::R7; case ARM::R7: return ARM::R8;
2744 case ARM::R8: return ARM::R9; case ARM::R9: return ARM::R10;
2745 case ARM::R10: return ARM::R11; case ARM::R11: return ARM::R12;
2746 case ARM::R12: return ARM::SP; case ARM::SP: return ARM::LR;
2747 case ARM::LR: return ARM::PC; case ARM::PC: return ARM::R0;
2751 // Return the low-subreg of a given Q register.
2752 static unsigned getDRegFromQReg(unsigned QReg) {
2754 default: llvm_unreachable("expected a Q register!");
2755 case ARM::Q0: return ARM::D0;
2756 case ARM::Q1: return ARM::D2;
2757 case ARM::Q2: return ARM::D4;
2758 case ARM::Q3: return ARM::D6;
2759 case ARM::Q4: return ARM::D8;
2760 case ARM::Q5: return ARM::D10;
2761 case ARM::Q6: return ARM::D12;
2762 case ARM::Q7: return ARM::D14;
2763 case ARM::Q8: return ARM::D16;
2764 case ARM::Q9: return ARM::D18;
2765 case ARM::Q10: return ARM::D20;
2766 case ARM::Q11: return ARM::D22;
2767 case ARM::Q12: return ARM::D24;
2768 case ARM::Q13: return ARM::D26;
2769 case ARM::Q14: return ARM::D28;
2770 case ARM::Q15: return ARM::D30;
2774 /// Parse a register list.
2776 parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2777 assert(Parser.getTok().is(AsmToken::LCurly) &&
2778 "Token is not a Left Curly Brace");
2779 SMLoc S = Parser.getTok().getLoc();
2780 Parser.Lex(); // Eat '{' token.
2781 SMLoc RegLoc = Parser.getTok().getLoc();
2783 // Check the first register in the list to see what register class
2784 // this is a list of.
2785 int Reg = tryParseRegister();
2787 return Error(RegLoc, "register expected");
2789 // The reglist instructions have at most 16 registers, so reserve
2790 // space for that many.
2791 SmallVector<std::pair<unsigned, SMLoc>, 16> Registers;
2793 // Allow Q regs and just interpret them as the two D sub-registers.
2794 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
2795 Reg = getDRegFromQReg(Reg);
2796 Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
2799 const MCRegisterClass *RC;
2800 if (ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
2801 RC = &ARMMCRegisterClasses[ARM::GPRRegClassID];
2802 else if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Reg))
2803 RC = &ARMMCRegisterClasses[ARM::DPRRegClassID];
2804 else if (ARMMCRegisterClasses[ARM::SPRRegClassID].contains(Reg))
2805 RC = &ARMMCRegisterClasses[ARM::SPRRegClassID];
2807 return Error(RegLoc, "invalid register in register list");
2809 // Store the register.
2810 Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
2812 // This starts immediately after the first register token in the list,
2813 // so we can see either a comma or a minus (range separator) as a legal
2815 while (Parser.getTok().is(AsmToken::Comma) ||
2816 Parser.getTok().is(AsmToken::Minus)) {
2817 if (Parser.getTok().is(AsmToken::Minus)) {
2818 Parser.Lex(); // Eat the minus.
2819 SMLoc EndLoc = Parser.getTok().getLoc();
2820 int EndReg = tryParseRegister();
2822 return Error(EndLoc, "register expected");
2823 // Allow Q regs and just interpret them as the two D sub-registers.
2824 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(EndReg))
2825 EndReg = getDRegFromQReg(EndReg) + 1;
2826 // If the register is the same as the start reg, there's nothing
2830 // The register must be in the same register class as the first.
2831 if (!RC->contains(EndReg))
2832 return Error(EndLoc, "invalid register in register list");
2833 // Ranges must go from low to high.
2834 if (getARMRegisterNumbering(Reg) > getARMRegisterNumbering(EndReg))
2835 return Error(EndLoc, "bad range in register list");
2837 // Add all the registers in the range to the register list.
2838 while (Reg != EndReg) {
2839 Reg = getNextRegister(Reg);
2840 Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
2844 Parser.Lex(); // Eat the comma.
2845 RegLoc = Parser.getTok().getLoc();
2847 const AsmToken RegTok = Parser.getTok();
2848 Reg = tryParseRegister();
2850 return Error(RegLoc, "register expected");
2851 // Allow Q regs and just interpret them as the two D sub-registers.
2852 bool isQReg = false;
2853 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
2854 Reg = getDRegFromQReg(Reg);
2857 // The register must be in the same register class as the first.
2858 if (!RC->contains(Reg))
2859 return Error(RegLoc, "invalid register in register list");
2860 // List must be monotonically increasing.
2861 if (getARMRegisterNumbering(Reg) < getARMRegisterNumbering(OldReg)) {
2862 if (ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
2863 Warning(RegLoc, "register list not in ascending order");
2865 return Error(RegLoc, "register list not in ascending order");
2867 if (getARMRegisterNumbering(Reg) == getARMRegisterNumbering(OldReg)) {
2868 Warning(RegLoc, "duplicated register (" + RegTok.getString() +
2869 ") in register list");
2872 // VFP register lists must also be contiguous.
2873 // It's OK to use the enumeration values directly here rather, as the
2874 // VFP register classes have the enum sorted properly.
2875 if (RC != &ARMMCRegisterClasses[ARM::GPRRegClassID] &&
2877 return Error(RegLoc, "non-contiguous register range");
2878 Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
2880 Registers.push_back(std::pair<unsigned, SMLoc>(++Reg, RegLoc));
2883 SMLoc E = Parser.getTok().getLoc();
2884 if (Parser.getTok().isNot(AsmToken::RCurly))
2885 return Error(E, "'}' expected");
2886 Parser.Lex(); // Eat '}' token.
2888 // Push the register list operand.
2889 Operands.push_back(ARMOperand::CreateRegList(Registers, S, E));
2891 // The ARM system instruction variants for LDM/STM have a '^' token here.
2892 if (Parser.getTok().is(AsmToken::Caret)) {
2893 Operands.push_back(ARMOperand::CreateToken("^",Parser.getTok().getLoc()));
2894 Parser.Lex(); // Eat '^' token.
2900 // Helper function to parse the lane index for vector lists.
2901 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2902 parseVectorLane(VectorLaneTy &LaneKind, unsigned &Index) {
2903 Index = 0; // Always return a defined index value.
2904 if (Parser.getTok().is(AsmToken::LBrac)) {
2905 Parser.Lex(); // Eat the '['.
2906 if (Parser.getTok().is(AsmToken::RBrac)) {
2907 // "Dn[]" is the 'all lanes' syntax.
2908 LaneKind = AllLanes;
2909 Parser.Lex(); // Eat the ']'.
2910 return MatchOperand_Success;
2913 // There's an optional '#' token here. Normally there wouldn't be, but
2914 // inline assemble puts one in, and it's friendly to accept that.
2915 if (Parser.getTok().is(AsmToken::Hash))
2916 Parser.Lex(); // Eat the '#'
2918 const MCExpr *LaneIndex;
2919 SMLoc Loc = Parser.getTok().getLoc();
2920 if (getParser().ParseExpression(LaneIndex)) {
2921 Error(Loc, "illegal expression");
2922 return MatchOperand_ParseFail;
2924 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(LaneIndex);
2926 Error(Loc, "lane index must be empty or an integer");
2927 return MatchOperand_ParseFail;
2929 if (Parser.getTok().isNot(AsmToken::RBrac)) {
2930 Error(Parser.getTok().getLoc(), "']' expected");
2931 return MatchOperand_ParseFail;
2933 Parser.Lex(); // Eat the ']'.
2934 int64_t Val = CE->getValue();
2936 // FIXME: Make this range check context sensitive for .8, .16, .32.
2937 if (Val < 0 || Val > 7) {
2938 Error(Parser.getTok().getLoc(), "lane index out of range");
2939 return MatchOperand_ParseFail;
2942 LaneKind = IndexedLane;
2943 return MatchOperand_Success;
2946 return MatchOperand_Success;
2949 // parse a vector register list
2950 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2951 parseVectorList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2952 VectorLaneTy LaneKind;
2954 SMLoc S = Parser.getTok().getLoc();
2955 // As an extension (to match gas), support a plain D register or Q register
2956 // (without encosing curly braces) as a single or double entry list,
2958 if (Parser.getTok().is(AsmToken::Identifier)) {
2959 int Reg = tryParseRegister();
2961 return MatchOperand_NoMatch;
2962 SMLoc E = Parser.getTok().getLoc();
2963 if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Reg)) {
2964 OperandMatchResultTy Res = parseVectorLane(LaneKind, LaneIndex);
2965 if (Res != MatchOperand_Success)
2969 E = Parser.getTok().getLoc();
2970 Operands.push_back(ARMOperand::CreateVectorList(Reg, 1, false, S, E));
2973 E = Parser.getTok().getLoc();
2974 Operands.push_back(ARMOperand::CreateVectorListAllLanes(Reg, 1, false,
2978 Operands.push_back(ARMOperand::CreateVectorListIndexed(Reg, 1,
2983 return MatchOperand_Success;
2985 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
2986 Reg = getDRegFromQReg(Reg);
2987 OperandMatchResultTy Res = parseVectorLane(LaneKind, LaneIndex);
2988 if (Res != MatchOperand_Success)
2992 E = Parser.getTok().getLoc();
2993 Reg = MRI->getMatchingSuperReg(Reg, ARM::dsub_0,
2994 &ARMMCRegisterClasses[ARM::DPairRegClassID]);
2995 Operands.push_back(ARMOperand::CreateVectorList(Reg, 2, false, S, E));
2998 E = Parser.getTok().getLoc();
2999 Reg = MRI->getMatchingSuperReg(Reg, ARM::dsub_0,
3000 &ARMMCRegisterClasses[ARM::DPairRegClassID]);
3001 Operands.push_back(ARMOperand::CreateVectorListAllLanes(Reg, 2, false,
3005 Operands.push_back(ARMOperand::CreateVectorListIndexed(Reg, 2,
3010 return MatchOperand_Success;
3012 Error(S, "vector register expected");
3013 return MatchOperand_ParseFail;
3016 if (Parser.getTok().isNot(AsmToken::LCurly))
3017 return MatchOperand_NoMatch;
3019 Parser.Lex(); // Eat '{' token.
3020 SMLoc RegLoc = Parser.getTok().getLoc();
3022 int Reg = tryParseRegister();
3024 Error(RegLoc, "register expected");
3025 return MatchOperand_ParseFail;
3029 unsigned FirstReg = Reg;
3030 // The list is of D registers, but we also allow Q regs and just interpret
3031 // them as the two D sub-registers.
3032 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3033 FirstReg = Reg = getDRegFromQReg(Reg);
3034 Spacing = 1; // double-spacing requires explicit D registers, otherwise
3035 // it's ambiguous with four-register single spaced.
3039 if (parseVectorLane(LaneKind, LaneIndex) != MatchOperand_Success)
3040 return MatchOperand_ParseFail;
3042 while (Parser.getTok().is(AsmToken::Comma) ||
3043 Parser.getTok().is(AsmToken::Minus)) {
3044 if (Parser.getTok().is(AsmToken::Minus)) {
3046 Spacing = 1; // Register range implies a single spaced list.
3047 else if (Spacing == 2) {
3048 Error(Parser.getTok().getLoc(),
3049 "sequential registers in double spaced list");
3050 return MatchOperand_ParseFail;
3052 Parser.Lex(); // Eat the minus.
3053 SMLoc EndLoc = Parser.getTok().getLoc();
3054 int EndReg = tryParseRegister();
3056 Error(EndLoc, "register expected");
3057 return MatchOperand_ParseFail;
3059 // Allow Q regs and just interpret them as the two D sub-registers.
3060 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(EndReg))
3061 EndReg = getDRegFromQReg(EndReg) + 1;
3062 // If the register is the same as the start reg, there's nothing
3066 // The register must be in the same register class as the first.
3067 if (!ARMMCRegisterClasses[ARM::DPRRegClassID].contains(EndReg)) {
3068 Error(EndLoc, "invalid register in register list");
3069 return MatchOperand_ParseFail;
3071 // Ranges must go from low to high.
3073 Error(EndLoc, "bad range in register list");
3074 return MatchOperand_ParseFail;
3076 // Parse the lane specifier if present.
3077 VectorLaneTy NextLaneKind;
3078 unsigned NextLaneIndex;
3079 if (parseVectorLane(NextLaneKind, NextLaneIndex) != MatchOperand_Success)
3080 return MatchOperand_ParseFail;
3081 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3082 Error(EndLoc, "mismatched lane index in register list");
3083 return MatchOperand_ParseFail;
3085 EndLoc = Parser.getTok().getLoc();
3087 // Add all the registers in the range to the register list.
3088 Count += EndReg - Reg;
3092 Parser.Lex(); // Eat the comma.
3093 RegLoc = Parser.getTok().getLoc();
3095 Reg = tryParseRegister();
3097 Error(RegLoc, "register expected");
3098 return MatchOperand_ParseFail;
3100 // vector register lists must be contiguous.
3101 // It's OK to use the enumeration values directly here rather, as the
3102 // VFP register classes have the enum sorted properly.
3104 // The list is of D registers, but we also allow Q regs and just interpret
3105 // them as the two D sub-registers.
3106 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3108 Spacing = 1; // Register range implies a single spaced list.
3109 else if (Spacing == 2) {
3111 "invalid register in double-spaced list (must be 'D' register')");
3112 return MatchOperand_ParseFail;
3114 Reg = getDRegFromQReg(Reg);
3115 if (Reg != OldReg + 1) {
3116 Error(RegLoc, "non-contiguous register range");
3117 return MatchOperand_ParseFail;
3121 // Parse the lane specifier if present.
3122 VectorLaneTy NextLaneKind;
3123 unsigned NextLaneIndex;
3124 SMLoc EndLoc = Parser.getTok().getLoc();
3125 if (parseVectorLane(NextLaneKind, NextLaneIndex) != MatchOperand_Success)
3126 return MatchOperand_ParseFail;
3127 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3128 Error(EndLoc, "mismatched lane index in register list");
3129 return MatchOperand_ParseFail;
3133 // Normal D register.
3134 // Figure out the register spacing (single or double) of the list if
3135 // we don't know it already.
3137 Spacing = 1 + (Reg == OldReg + 2);
3139 // Just check that it's contiguous and keep going.
3140 if (Reg != OldReg + Spacing) {
3141 Error(RegLoc, "non-contiguous register range");
3142 return MatchOperand_ParseFail;
3145 // Parse the lane specifier if present.
3146 VectorLaneTy NextLaneKind;
3147 unsigned NextLaneIndex;
3148 SMLoc EndLoc = Parser.getTok().getLoc();
3149 if (parseVectorLane(NextLaneKind, NextLaneIndex) != MatchOperand_Success)
3150 return MatchOperand_ParseFail;
3151 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3152 Error(EndLoc, "mismatched lane index in register list");
3153 return MatchOperand_ParseFail;
3157 SMLoc E = Parser.getTok().getLoc();
3158 if (Parser.getTok().isNot(AsmToken::RCurly)) {
3159 Error(E, "'}' expected");
3160 return MatchOperand_ParseFail;
3162 Parser.Lex(); // Eat '}' token.
3166 // Two-register operands have been converted to the
3167 // composite register classes.
3169 const MCRegisterClass *RC = (Spacing == 1) ?
3170 &ARMMCRegisterClasses[ARM::DPairRegClassID] :
3171 &ARMMCRegisterClasses[ARM::DPairSpcRegClassID];
3172 FirstReg = MRI->getMatchingSuperReg(FirstReg, ARM::dsub_0, RC);
3175 Operands.push_back(ARMOperand::CreateVectorList(FirstReg, Count,
3176 (Spacing == 2), S, E));
3179 // Two-register operands have been converted to the
3180 // composite register classes.
3182 const MCRegisterClass *RC = (Spacing == 1) ?
3183 &ARMMCRegisterClasses[ARM::DPairRegClassID] :
3184 &ARMMCRegisterClasses[ARM::DPairSpcRegClassID];
3185 FirstReg = MRI->getMatchingSuperReg(FirstReg, ARM::dsub_0, RC);
3187 Operands.push_back(ARMOperand::CreateVectorListAllLanes(FirstReg, Count,
3192 Operands.push_back(ARMOperand::CreateVectorListIndexed(FirstReg, Count,
3198 return MatchOperand_Success;
3201 /// parseMemBarrierOptOperand - Try to parse DSB/DMB data barrier options.
3202 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3203 parseMemBarrierOptOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3204 SMLoc S = Parser.getTok().getLoc();
3205 const AsmToken &Tok = Parser.getTok();
3206 assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier");
3207 StringRef OptStr = Tok.getString();
3209 unsigned Opt = StringSwitch<unsigned>(OptStr.slice(0, OptStr.size()))
3210 .Case("sy", ARM_MB::SY)
3211 .Case("st", ARM_MB::ST)
3212 .Case("sh", ARM_MB::ISH)
3213 .Case("ish", ARM_MB::ISH)
3214 .Case("shst", ARM_MB::ISHST)
3215 .Case("ishst", ARM_MB::ISHST)
3216 .Case("nsh", ARM_MB::NSH)
3217 .Case("un", ARM_MB::NSH)
3218 .Case("nshst", ARM_MB::NSHST)
3219 .Case("unst", ARM_MB::NSHST)
3220 .Case("osh", ARM_MB::OSH)
3221 .Case("oshst", ARM_MB::OSHST)
3225 return MatchOperand_NoMatch;
3227 Parser.Lex(); // Eat identifier token.
3228 Operands.push_back(ARMOperand::CreateMemBarrierOpt((ARM_MB::MemBOpt)Opt, S));
3229 return MatchOperand_Success;
3232 /// parseProcIFlagsOperand - Try to parse iflags from CPS instruction.
3233 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3234 parseProcIFlagsOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3235 SMLoc S = Parser.getTok().getLoc();
3236 const AsmToken &Tok = Parser.getTok();
3237 assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier");
3238 StringRef IFlagsStr = Tok.getString();
3240 // An iflags string of "none" is interpreted to mean that none of the AIF
3241 // bits are set. Not a terribly useful instruction, but a valid encoding.
3242 unsigned IFlags = 0;
3243 if (IFlagsStr != "none") {
3244 for (int i = 0, e = IFlagsStr.size(); i != e; ++i) {
3245 unsigned Flag = StringSwitch<unsigned>(IFlagsStr.substr(i, 1))
3246 .Case("a", ARM_PROC::A)
3247 .Case("i", ARM_PROC::I)
3248 .Case("f", ARM_PROC::F)
3251 // If some specific iflag is already set, it means that some letter is
3252 // present more than once, this is not acceptable.
3253 if (Flag == ~0U || (IFlags & Flag))
3254 return MatchOperand_NoMatch;
3260 Parser.Lex(); // Eat identifier token.
3261 Operands.push_back(ARMOperand::CreateProcIFlags((ARM_PROC::IFlags)IFlags, S));
3262 return MatchOperand_Success;
3265 /// parseMSRMaskOperand - Try to parse mask flags from MSR instruction.
3266 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3267 parseMSRMaskOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3268 SMLoc S = Parser.getTok().getLoc();
3269 const AsmToken &Tok = Parser.getTok();
3270 assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier");
3271 StringRef Mask = Tok.getString();
3274 // See ARMv6-M 10.1.1
3275 std::string Name = Mask.lower();
3276 unsigned FlagsVal = StringSwitch<unsigned>(Name)
3286 .Case("primask", 16)
3287 .Case("basepri", 17)
3288 .Case("basepri_max", 18)
3289 .Case("faultmask", 19)
3290 .Case("control", 20)
3293 if (FlagsVal == ~0U)
3294 return MatchOperand_NoMatch;
3296 if (!hasV7Ops() && FlagsVal >= 17 && FlagsVal <= 19)
3297 // basepri, basepri_max and faultmask only valid for V7m.
3298 return MatchOperand_NoMatch;
3300 Parser.Lex(); // Eat identifier token.
3301 Operands.push_back(ARMOperand::CreateMSRMask(FlagsVal, S));
3302 return MatchOperand_Success;
3305 // Split spec_reg from flag, example: CPSR_sxf => "CPSR" and "sxf"
3306 size_t Start = 0, Next = Mask.find('_');
3307 StringRef Flags = "";
3308 std::string SpecReg = Mask.slice(Start, Next).lower();
3309 if (Next != StringRef::npos)
3310 Flags = Mask.slice(Next+1, Mask.size());
3312 // FlagsVal contains the complete mask:
3314 // 4: Special Reg (cpsr, apsr => 0; spsr => 1)
3315 unsigned FlagsVal = 0;
3317 if (SpecReg == "apsr") {
3318 FlagsVal = StringSwitch<unsigned>(Flags)
3319 .Case("nzcvq", 0x8) // same as CPSR_f
3320 .Case("g", 0x4) // same as CPSR_s
3321 .Case("nzcvqg", 0xc) // same as CPSR_fs
3324 if (FlagsVal == ~0U) {
3326 return MatchOperand_NoMatch;
3328 FlagsVal = 8; // No flag
3330 } else if (SpecReg == "cpsr" || SpecReg == "spsr") {
3331 if (Flags == "all") // cpsr_all is an alias for cpsr_fc
3333 for (int i = 0, e = Flags.size(); i != e; ++i) {
3334 unsigned Flag = StringSwitch<unsigned>(Flags.substr(i, 1))
3341 // If some specific flag is already set, it means that some letter is
3342 // present more than once, this is not acceptable.
3343 if (FlagsVal == ~0U || (FlagsVal & Flag))
3344 return MatchOperand_NoMatch;
3347 } else // No match for special register.
3348 return MatchOperand_NoMatch;
3350 // Special register without flags is NOT equivalent to "fc" flags.
3351 // NOTE: This is a divergence from gas' behavior. Uncommenting the following
3352 // two lines would enable gas compatibility at the expense of breaking
3358 // Bit 4: Special Reg (cpsr, apsr => 0; spsr => 1)
3359 if (SpecReg == "spsr")
3362 Parser.Lex(); // Eat identifier token.
3363 Operands.push_back(ARMOperand::CreateMSRMask(FlagsVal, S));
3364 return MatchOperand_Success;
3367 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3368 parsePKHImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands, StringRef Op,
3369 int Low, int High) {
3370 const AsmToken &Tok = Parser.getTok();
3371 if (Tok.isNot(AsmToken::Identifier)) {
3372 Error(Parser.getTok().getLoc(), Op + " operand expected.");
3373 return MatchOperand_ParseFail;
3375 StringRef ShiftName = Tok.getString();
3376 std::string LowerOp = Op.lower();
3377 std::string UpperOp = Op.upper();
3378 if (ShiftName != LowerOp && ShiftName != UpperOp) {
3379 Error(Parser.getTok().getLoc(), Op + " operand expected.");
3380 return MatchOperand_ParseFail;
3382 Parser.Lex(); // Eat shift type token.
3384 // There must be a '#' and a shift amount.
3385 if (Parser.getTok().isNot(AsmToken::Hash) &&
3386 Parser.getTok().isNot(AsmToken::Dollar)) {
3387 Error(Parser.getTok().getLoc(), "'#' expected");
3388 return MatchOperand_ParseFail;
3390 Parser.Lex(); // Eat hash token.
3392 const MCExpr *ShiftAmount;
3393 SMLoc Loc = Parser.getTok().getLoc();
3394 if (getParser().ParseExpression(ShiftAmount)) {
3395 Error(Loc, "illegal expression");
3396 return MatchOperand_ParseFail;
3398 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
3400 Error(Loc, "constant expression expected");
3401 return MatchOperand_ParseFail;
3403 int Val = CE->getValue();
3404 if (Val < Low || Val > High) {
3405 Error(Loc, "immediate value out of range");
3406 return MatchOperand_ParseFail;
3409 Operands.push_back(ARMOperand::CreateImm(CE, Loc, Parser.getTok().getLoc()));
3411 return MatchOperand_Success;
3414 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3415 parseSetEndImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3416 const AsmToken &Tok = Parser.getTok();
3417 SMLoc S = Tok.getLoc();
3418 if (Tok.isNot(AsmToken::Identifier)) {
3419 Error(Tok.getLoc(), "'be' or 'le' operand expected");
3420 return MatchOperand_ParseFail;
3422 int Val = StringSwitch<int>(Tok.getString())
3426 Parser.Lex(); // Eat the token.
3429 Error(Tok.getLoc(), "'be' or 'le' operand expected");
3430 return MatchOperand_ParseFail;
3432 Operands.push_back(ARMOperand::CreateImm(MCConstantExpr::Create(Val,
3434 S, Parser.getTok().getLoc()));
3435 return MatchOperand_Success;
3438 /// parseShifterImm - Parse the shifter immediate operand for SSAT/USAT
3439 /// instructions. Legal values are:
3440 /// lsl #n 'n' in [0,31]
3441 /// asr #n 'n' in [1,32]
3442 /// n == 32 encoded as n == 0.
3443 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3444 parseShifterImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3445 const AsmToken &Tok = Parser.getTok();
3446 SMLoc S = Tok.getLoc();
3447 if (Tok.isNot(AsmToken::Identifier)) {
3448 Error(S, "shift operator 'asr' or 'lsl' expected");
3449 return MatchOperand_ParseFail;
3451 StringRef ShiftName = Tok.getString();
3453 if (ShiftName == "lsl" || ShiftName == "LSL")
3455 else if (ShiftName == "asr" || ShiftName == "ASR")
3458 Error(S, "shift operator 'asr' or 'lsl' expected");
3459 return MatchOperand_ParseFail;
3461 Parser.Lex(); // Eat the operator.
3463 // A '#' and a shift amount.
3464 if (Parser.getTok().isNot(AsmToken::Hash) &&
3465 Parser.getTok().isNot(AsmToken::Dollar)) {
3466 Error(Parser.getTok().getLoc(), "'#' expected");
3467 return MatchOperand_ParseFail;
3469 Parser.Lex(); // Eat hash token.
3471 const MCExpr *ShiftAmount;
3472 SMLoc E = Parser.getTok().getLoc();
3473 if (getParser().ParseExpression(ShiftAmount)) {
3474 Error(E, "malformed shift expression");
3475 return MatchOperand_ParseFail;
3477 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
3479 Error(E, "shift amount must be an immediate");
3480 return MatchOperand_ParseFail;
3483 int64_t Val = CE->getValue();
3485 // Shift amount must be in [1,32]
3486 if (Val < 1 || Val > 32) {
3487 Error(E, "'asr' shift amount must be in range [1,32]");
3488 return MatchOperand_ParseFail;
3490 // asr #32 encoded as asr #0, but is not allowed in Thumb2 mode.
3491 if (isThumb() && Val == 32) {
3492 Error(E, "'asr #32' shift amount not allowed in Thumb mode");
3493 return MatchOperand_ParseFail;
3495 if (Val == 32) Val = 0;
3497 // Shift amount must be in [1,32]
3498 if (Val < 0 || Val > 31) {
3499 Error(E, "'lsr' shift amount must be in range [0,31]");
3500 return MatchOperand_ParseFail;
3504 E = Parser.getTok().getLoc();
3505 Operands.push_back(ARMOperand::CreateShifterImm(isASR, Val, S, E));
3507 return MatchOperand_Success;
3510 /// parseRotImm - Parse the shifter immediate operand for SXTB/UXTB family
3511 /// of instructions. Legal values are:
3512 /// ror #n 'n' in {0, 8, 16, 24}
3513 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3514 parseRotImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3515 const AsmToken &Tok = Parser.getTok();
3516 SMLoc S = Tok.getLoc();
3517 if (Tok.isNot(AsmToken::Identifier))
3518 return MatchOperand_NoMatch;
3519 StringRef ShiftName = Tok.getString();
3520 if (ShiftName != "ror" && ShiftName != "ROR")
3521 return MatchOperand_NoMatch;
3522 Parser.Lex(); // Eat the operator.
3524 // A '#' and a rotate amount.
3525 if (Parser.getTok().isNot(AsmToken::Hash) &&
3526 Parser.getTok().isNot(AsmToken::Dollar)) {
3527 Error(Parser.getTok().getLoc(), "'#' expected");
3528 return MatchOperand_ParseFail;
3530 Parser.Lex(); // Eat hash token.
3532 const MCExpr *ShiftAmount;
3533 SMLoc E = Parser.getTok().getLoc();
3534 if (getParser().ParseExpression(ShiftAmount)) {
3535 Error(E, "malformed rotate expression");
3536 return MatchOperand_ParseFail;
3538 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
3540 Error(E, "rotate amount must be an immediate");
3541 return MatchOperand_ParseFail;
3544 int64_t Val = CE->getValue();
3545 // Shift amount must be in {0, 8, 16, 24} (0 is undocumented extension)
3546 // normally, zero is represented in asm by omitting the rotate operand
3548 if (Val != 8 && Val != 16 && Val != 24 && Val != 0) {
3549 Error(E, "'ror' rotate amount must be 8, 16, or 24");
3550 return MatchOperand_ParseFail;
3553 E = Parser.getTok().getLoc();
3554 Operands.push_back(ARMOperand::CreateRotImm(Val, S, E));
3556 return MatchOperand_Success;
3559 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3560 parseBitfield(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3561 SMLoc S = Parser.getTok().getLoc();
3562 // The bitfield descriptor is really two operands, the LSB and the width.
3563 if (Parser.getTok().isNot(AsmToken::Hash) &&
3564 Parser.getTok().isNot(AsmToken::Dollar)) {
3565 Error(Parser.getTok().getLoc(), "'#' expected");
3566 return MatchOperand_ParseFail;
3568 Parser.Lex(); // Eat hash token.
3570 const MCExpr *LSBExpr;
3571 SMLoc E = Parser.getTok().getLoc();
3572 if (getParser().ParseExpression(LSBExpr)) {
3573 Error(E, "malformed immediate expression");
3574 return MatchOperand_ParseFail;
3576 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(LSBExpr);
3578 Error(E, "'lsb' operand must be an immediate");
3579 return MatchOperand_ParseFail;
3582 int64_t LSB = CE->getValue();
3583 // The LSB must be in the range [0,31]
3584 if (LSB < 0 || LSB > 31) {
3585 Error(E, "'lsb' operand must be in the range [0,31]");
3586 return MatchOperand_ParseFail;
3588 E = Parser.getTok().getLoc();
3590 // Expect another immediate operand.
3591 if (Parser.getTok().isNot(AsmToken::Comma)) {
3592 Error(Parser.getTok().getLoc(), "too few operands");
3593 return MatchOperand_ParseFail;
3595 Parser.Lex(); // Eat hash token.
3596 if (Parser.getTok().isNot(AsmToken::Hash) &&
3597 Parser.getTok().isNot(AsmToken::Dollar)) {
3598 Error(Parser.getTok().getLoc(), "'#' expected");
3599 return MatchOperand_ParseFail;
3601 Parser.Lex(); // Eat hash token.
3603 const MCExpr *WidthExpr;
3604 if (getParser().ParseExpression(WidthExpr)) {
3605 Error(E, "malformed immediate expression");
3606 return MatchOperand_ParseFail;
3608 CE = dyn_cast<MCConstantExpr>(WidthExpr);
3610 Error(E, "'width' operand must be an immediate");
3611 return MatchOperand_ParseFail;
3614 int64_t Width = CE->getValue();
3615 // The LSB must be in the range [1,32-lsb]
3616 if (Width < 1 || Width > 32 - LSB) {
3617 Error(E, "'width' operand must be in the range [1,32-lsb]");
3618 return MatchOperand_ParseFail;
3620 E = Parser.getTok().getLoc();
3622 Operands.push_back(ARMOperand::CreateBitfield(LSB, Width, S, E));
3624 return MatchOperand_Success;
3627 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3628 parsePostIdxReg(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3629 // Check for a post-index addressing register operand. Specifically:
3630 // postidx_reg := '+' register {, shift}
3631 // | '-' register {, shift}
3632 // | register {, shift}
3634 // This method must return MatchOperand_NoMatch without consuming any tokens
3635 // in the case where there is no match, as other alternatives take other
3637 AsmToken Tok = Parser.getTok();
3638 SMLoc S = Tok.getLoc();
3639 bool haveEaten = false;
3642 if (Tok.is(AsmToken::Plus)) {
3643 Parser.Lex(); // Eat the '+' token.
3645 } else if (Tok.is(AsmToken::Minus)) {
3646 Parser.Lex(); // Eat the '-' token.
3650 if (Parser.getTok().is(AsmToken::Identifier))
3651 Reg = tryParseRegister();
3654 return MatchOperand_NoMatch;
3655 Error(Parser.getTok().getLoc(), "register expected");
3656 return MatchOperand_ParseFail;
3658 SMLoc E = Parser.getTok().getLoc();
3660 ARM_AM::ShiftOpc ShiftTy = ARM_AM::no_shift;
3661 unsigned ShiftImm = 0;
3662 if (Parser.getTok().is(AsmToken::Comma)) {
3663 Parser.Lex(); // Eat the ','.
3664 if (parseMemRegOffsetShift(ShiftTy, ShiftImm))
3665 return MatchOperand_ParseFail;
3668 Operands.push_back(ARMOperand::CreatePostIdxReg(Reg, isAdd, ShiftTy,
3671 return MatchOperand_Success;
3674 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3675 parseAM3Offset(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3676 // Check for a post-index addressing register operand. Specifically:
3677 // am3offset := '+' register
3684 // This method must return MatchOperand_NoMatch without consuming any tokens
3685 // in the case where there is no match, as other alternatives take other
3687 AsmToken Tok = Parser.getTok();
3688 SMLoc S = Tok.getLoc();
3690 // Do immediates first, as we always parse those if we have a '#'.
3691 if (Parser.getTok().is(AsmToken::Hash) ||
3692 Parser.getTok().is(AsmToken::Dollar)) {
3693 Parser.Lex(); // Eat the '#'.
3694 // Explicitly look for a '-', as we need to encode negative zero
3696 bool isNegative = Parser.getTok().is(AsmToken::Minus);
3697 const MCExpr *Offset;
3698 if (getParser().ParseExpression(Offset))
3699 return MatchOperand_ParseFail;
3700 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Offset);
3702 Error(S, "constant expression expected");
3703 return MatchOperand_ParseFail;
3705 SMLoc E = Tok.getLoc();
3706 // Negative zero is encoded as the flag value INT32_MIN.
3707 int32_t Val = CE->getValue();
3708 if (isNegative && Val == 0)
3712 ARMOperand::CreateImm(MCConstantExpr::Create(Val, getContext()), S, E));
3714 return MatchOperand_Success;
3718 bool haveEaten = false;
3721 if (Tok.is(AsmToken::Plus)) {
3722 Parser.Lex(); // Eat the '+' token.
3724 } else if (Tok.is(AsmToken::Minus)) {
3725 Parser.Lex(); // Eat the '-' token.
3729 if (Parser.getTok().is(AsmToken::Identifier))
3730 Reg = tryParseRegister();
3733 return MatchOperand_NoMatch;
3734 Error(Parser.getTok().getLoc(), "register expected");
3735 return MatchOperand_ParseFail;
3737 SMLoc E = Parser.getTok().getLoc();
3739 Operands.push_back(ARMOperand::CreatePostIdxReg(Reg, isAdd, ARM_AM::no_shift,
3742 return MatchOperand_Success;
3745 /// cvtT2LdrdPre - Convert parsed operands to MCInst.
3746 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3747 /// when they refer multiple MIOperands inside a single one.
3749 cvtT2LdrdPre(MCInst &Inst, unsigned Opcode,
3750 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3752 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3753 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
3754 // Create a writeback register dummy placeholder.
3755 Inst.addOperand(MCOperand::CreateReg(0));
3757 ((ARMOperand*)Operands[4])->addMemImm8s4OffsetOperands(Inst, 2);
3759 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3763 /// cvtT2StrdPre - Convert parsed operands to MCInst.
3764 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3765 /// when they refer multiple MIOperands inside a single one.
3767 cvtT2StrdPre(MCInst &Inst, unsigned Opcode,
3768 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3769 // Create a writeback register dummy placeholder.
3770 Inst.addOperand(MCOperand::CreateReg(0));
3772 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3773 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
3775 ((ARMOperand*)Operands[4])->addMemImm8s4OffsetOperands(Inst, 2);
3777 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3781 /// cvtLdWriteBackRegT2AddrModeImm8 - Convert parsed operands to MCInst.
3782 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3783 /// when they refer multiple MIOperands inside a single one.
3785 cvtLdWriteBackRegT2AddrModeImm8(MCInst &Inst, unsigned Opcode,
3786 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3787 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3789 // Create a writeback register dummy placeholder.
3790 Inst.addOperand(MCOperand::CreateImm(0));
3792 ((ARMOperand*)Operands[3])->addMemImm8OffsetOperands(Inst, 2);
3793 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3797 /// cvtStWriteBackRegT2AddrModeImm8 - Convert parsed operands to MCInst.
3798 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3799 /// when they refer multiple MIOperands inside a single one.
3801 cvtStWriteBackRegT2AddrModeImm8(MCInst &Inst, unsigned Opcode,
3802 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3803 // Create a writeback register dummy placeholder.
3804 Inst.addOperand(MCOperand::CreateImm(0));
3805 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3806 ((ARMOperand*)Operands[3])->addMemImm8OffsetOperands(Inst, 2);
3807 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3811 /// cvtLdWriteBackRegAddrMode2 - Convert parsed operands to MCInst.
3812 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3813 /// when they refer multiple MIOperands inside a single one.
3815 cvtLdWriteBackRegAddrMode2(MCInst &Inst, unsigned Opcode,
3816 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3817 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3819 // Create a writeback register dummy placeholder.
3820 Inst.addOperand(MCOperand::CreateImm(0));
3822 ((ARMOperand*)Operands[3])->addAddrMode2Operands(Inst, 3);
3823 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3827 /// cvtLdWriteBackRegAddrModeImm12 - Convert parsed operands to MCInst.
3828 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3829 /// when they refer multiple MIOperands inside a single one.
3831 cvtLdWriteBackRegAddrModeImm12(MCInst &Inst, unsigned Opcode,
3832 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3833 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3835 // Create a writeback register dummy placeholder.
3836 Inst.addOperand(MCOperand::CreateImm(0));
3838 ((ARMOperand*)Operands[3])->addMemImm12OffsetOperands(Inst, 2);
3839 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3844 /// cvtStWriteBackRegAddrModeImm12 - Convert parsed operands to MCInst.
3845 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3846 /// when they refer multiple MIOperands inside a single one.
3848 cvtStWriteBackRegAddrModeImm12(MCInst &Inst, unsigned Opcode,
3849 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3850 // Create a writeback register dummy placeholder.
3851 Inst.addOperand(MCOperand::CreateImm(0));
3852 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3853 ((ARMOperand*)Operands[3])->addMemImm12OffsetOperands(Inst, 2);
3854 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3858 /// cvtStWriteBackRegAddrMode2 - 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 cvtStWriteBackRegAddrMode2(MCInst &Inst, unsigned Opcode,
3863 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3864 // Create a writeback register dummy placeholder.
3865 Inst.addOperand(MCOperand::CreateImm(0));
3866 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3867 ((ARMOperand*)Operands[3])->addAddrMode2Operands(Inst, 3);
3868 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3872 /// cvtStWriteBackRegAddrMode3 - Convert parsed operands to MCInst.
3873 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3874 /// when they refer multiple MIOperands inside a single one.
3876 cvtStWriteBackRegAddrMode3(MCInst &Inst, unsigned Opcode,
3877 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3878 // Create a writeback register dummy placeholder.
3879 Inst.addOperand(MCOperand::CreateImm(0));
3880 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3881 ((ARMOperand*)Operands[3])->addAddrMode3Operands(Inst, 3);
3882 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3886 /// cvtLdExtTWriteBackImm - Convert parsed operands to MCInst.
3887 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3888 /// when they refer multiple MIOperands inside a single one.
3890 cvtLdExtTWriteBackImm(MCInst &Inst, unsigned Opcode,
3891 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3893 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3894 // Create a writeback register dummy placeholder.
3895 Inst.addOperand(MCOperand::CreateImm(0));
3897 ((ARMOperand*)Operands[3])->addMemNoOffsetOperands(Inst, 1);
3899 ((ARMOperand*)Operands[4])->addPostIdxImm8Operands(Inst, 1);
3901 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3905 /// cvtLdExtTWriteBackReg - Convert parsed operands to MCInst.
3906 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3907 /// when they refer multiple MIOperands inside a single one.
3909 cvtLdExtTWriteBackReg(MCInst &Inst, unsigned Opcode,
3910 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3912 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3913 // Create a writeback register dummy placeholder.
3914 Inst.addOperand(MCOperand::CreateImm(0));
3916 ((ARMOperand*)Operands[3])->addMemNoOffsetOperands(Inst, 1);
3918 ((ARMOperand*)Operands[4])->addPostIdxRegOperands(Inst, 2);
3920 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3924 /// cvtStExtTWriteBackImm - Convert parsed operands to MCInst.
3925 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3926 /// when they refer multiple MIOperands inside a single one.
3928 cvtStExtTWriteBackImm(MCInst &Inst, unsigned Opcode,
3929 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3930 // Create a writeback register dummy placeholder.
3931 Inst.addOperand(MCOperand::CreateImm(0));
3933 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3935 ((ARMOperand*)Operands[3])->addMemNoOffsetOperands(Inst, 1);
3937 ((ARMOperand*)Operands[4])->addPostIdxImm8Operands(Inst, 1);
3939 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3943 /// cvtStExtTWriteBackReg - Convert parsed operands to MCInst.
3944 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3945 /// when they refer multiple MIOperands inside a single one.
3947 cvtStExtTWriteBackReg(MCInst &Inst, unsigned Opcode,
3948 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3949 // Create a writeback register dummy placeholder.
3950 Inst.addOperand(MCOperand::CreateImm(0));
3952 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3954 ((ARMOperand*)Operands[3])->addMemNoOffsetOperands(Inst, 1);
3956 ((ARMOperand*)Operands[4])->addPostIdxRegOperands(Inst, 2);
3958 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3962 /// cvtLdrdPre - Convert parsed operands to MCInst.
3963 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3964 /// when they refer multiple MIOperands inside a single one.
3966 cvtLdrdPre(MCInst &Inst, unsigned Opcode,
3967 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3969 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3970 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
3971 // Create a writeback register dummy placeholder.
3972 Inst.addOperand(MCOperand::CreateImm(0));
3974 ((ARMOperand*)Operands[4])->addAddrMode3Operands(Inst, 3);
3976 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3980 /// cvtStrdPre - Convert parsed operands to MCInst.
3981 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3982 /// when they refer multiple MIOperands inside a single one.
3984 cvtStrdPre(MCInst &Inst, unsigned Opcode,
3985 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3986 // Create a writeback register dummy placeholder.
3987 Inst.addOperand(MCOperand::CreateImm(0));
3989 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3990 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
3992 ((ARMOperand*)Operands[4])->addAddrMode3Operands(Inst, 3);
3994 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3998 /// cvtLdWriteBackRegAddrMode3 - Convert parsed operands to MCInst.
3999 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4000 /// when they refer multiple MIOperands inside a single one.
4002 cvtLdWriteBackRegAddrMode3(MCInst &Inst, unsigned Opcode,
4003 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4004 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4005 // Create a writeback register dummy placeholder.
4006 Inst.addOperand(MCOperand::CreateImm(0));
4007 ((ARMOperand*)Operands[3])->addAddrMode3Operands(Inst, 3);
4008 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4012 /// cvtThumbMultiple- Convert parsed operands to MCInst.
4013 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4014 /// when they refer multiple MIOperands inside a single one.
4016 cvtThumbMultiply(MCInst &Inst, unsigned Opcode,
4017 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4018 // The second source operand must be the same register as the destination
4020 if (Operands.size() == 6 &&
4021 (((ARMOperand*)Operands[3])->getReg() !=
4022 ((ARMOperand*)Operands[5])->getReg()) &&
4023 (((ARMOperand*)Operands[3])->getReg() !=
4024 ((ARMOperand*)Operands[4])->getReg())) {
4025 Error(Operands[3]->getStartLoc(),
4026 "destination register must match source register");
4029 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
4030 ((ARMOperand*)Operands[1])->addCCOutOperands(Inst, 1);
4031 // If we have a three-operand form, make sure to set Rn to be the operand
4032 // that isn't the same as Rd.
4034 if (Operands.size() == 6 &&
4035 ((ARMOperand*)Operands[4])->getReg() ==
4036 ((ARMOperand*)Operands[3])->getReg())
4038 ((ARMOperand*)Operands[RegOp])->addRegOperands(Inst, 1);
4039 Inst.addOperand(Inst.getOperand(0));
4040 ((ARMOperand*)Operands[2])->addCondCodeOperands(Inst, 2);
4046 cvtVLDwbFixed(MCInst &Inst, unsigned Opcode,
4047 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4049 ((ARMOperand*)Operands[3])->addVecListOperands(Inst, 1);
4050 // Create a writeback register dummy placeholder.
4051 Inst.addOperand(MCOperand::CreateImm(0));
4053 ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
4055 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4060 cvtVLDwbRegister(MCInst &Inst, unsigned Opcode,
4061 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4063 ((ARMOperand*)Operands[3])->addVecListOperands(Inst, 1);
4064 // Create a writeback register dummy placeholder.
4065 Inst.addOperand(MCOperand::CreateImm(0));
4067 ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
4069 ((ARMOperand*)Operands[5])->addRegOperands(Inst, 1);
4071 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4076 cvtVSTwbFixed(MCInst &Inst, unsigned Opcode,
4077 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4078 // Create a writeback register dummy placeholder.
4079 Inst.addOperand(MCOperand::CreateImm(0));
4081 ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
4083 ((ARMOperand*)Operands[3])->addVecListOperands(Inst, 1);
4085 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4090 cvtVSTwbRegister(MCInst &Inst, unsigned Opcode,
4091 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4092 // Create a writeback register dummy placeholder.
4093 Inst.addOperand(MCOperand::CreateImm(0));
4095 ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
4097 ((ARMOperand*)Operands[5])->addRegOperands(Inst, 1);
4099 ((ARMOperand*)Operands[3])->addVecListOperands(Inst, 1);
4101 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4105 /// Parse an ARM memory expression, return false if successful else return true
4106 /// or an error. The first token must be a '[' when called.
4108 parseMemory(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4110 assert(Parser.getTok().is(AsmToken::LBrac) &&
4111 "Token is not a Left Bracket");
4112 S = Parser.getTok().getLoc();
4113 Parser.Lex(); // Eat left bracket token.
4115 const AsmToken &BaseRegTok = Parser.getTok();
4116 int BaseRegNum = tryParseRegister();
4117 if (BaseRegNum == -1)
4118 return Error(BaseRegTok.getLoc(), "register expected");
4120 // The next token must either be a comma or a closing bracket.
4121 const AsmToken &Tok = Parser.getTok();
4122 if (!Tok.is(AsmToken::Comma) && !Tok.is(AsmToken::RBrac))
4123 return Error(Tok.getLoc(), "malformed memory operand");
4125 if (Tok.is(AsmToken::RBrac)) {
4127 Parser.Lex(); // Eat right bracket token.
4129 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, 0, ARM_AM::no_shift,
4130 0, 0, false, S, E));
4132 // If there's a pre-indexing writeback marker, '!', just add it as a token
4133 // operand. It's rather odd, but syntactically valid.
4134 if (Parser.getTok().is(AsmToken::Exclaim)) {
4135 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4136 Parser.Lex(); // Eat the '!'.
4142 assert(Tok.is(AsmToken::Comma) && "Lost comma in memory operand?!");
4143 Parser.Lex(); // Eat the comma.
4145 // If we have a ':', it's an alignment specifier.
4146 if (Parser.getTok().is(AsmToken::Colon)) {
4147 Parser.Lex(); // Eat the ':'.
4148 E = Parser.getTok().getLoc();
4151 if (getParser().ParseExpression(Expr))
4154 // The expression has to be a constant. Memory references with relocations
4155 // don't come through here, as they use the <label> forms of the relevant
4157 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
4159 return Error (E, "constant expression expected");
4162 switch (CE->getValue()) {
4165 "alignment specifier must be 16, 32, 64, 128, or 256 bits");
4166 case 16: Align = 2; break;
4167 case 32: Align = 4; break;
4168 case 64: Align = 8; break;
4169 case 128: Align = 16; break;
4170 case 256: Align = 32; break;
4173 // Now we should have the closing ']'
4174 E = Parser.getTok().getLoc();
4175 if (Parser.getTok().isNot(AsmToken::RBrac))
4176 return Error(E, "']' expected");
4177 Parser.Lex(); // Eat right bracket token.
4179 // Don't worry about range checking the value here. That's handled by
4180 // the is*() predicates.
4181 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, 0,
4182 ARM_AM::no_shift, 0, Align,
4185 // If there's a pre-indexing writeback marker, '!', just add it as a token
4187 if (Parser.getTok().is(AsmToken::Exclaim)) {
4188 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4189 Parser.Lex(); // Eat the '!'.
4195 // If we have a '#', it's an immediate offset, else assume it's a register
4196 // offset. Be friendly and also accept a plain integer (without a leading
4197 // hash) for gas compatibility.
4198 if (Parser.getTok().is(AsmToken::Hash) ||
4199 Parser.getTok().is(AsmToken::Dollar) ||
4200 Parser.getTok().is(AsmToken::Integer)) {
4201 if (Parser.getTok().isNot(AsmToken::Integer))
4202 Parser.Lex(); // Eat the '#'.
4203 E = Parser.getTok().getLoc();
4205 bool isNegative = getParser().getTok().is(AsmToken::Minus);
4206 const MCExpr *Offset;
4207 if (getParser().ParseExpression(Offset))
4210 // The expression has to be a constant. Memory references with relocations
4211 // don't come through here, as they use the <label> forms of the relevant
4213 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Offset);
4215 return Error (E, "constant expression expected");
4217 // If the constant was #-0, represent it as INT32_MIN.
4218 int32_t Val = CE->getValue();
4219 if (isNegative && Val == 0)
4220 CE = MCConstantExpr::Create(INT32_MIN, getContext());
4222 // Now we should have the closing ']'
4223 E = Parser.getTok().getLoc();
4224 if (Parser.getTok().isNot(AsmToken::RBrac))
4225 return Error(E, "']' expected");
4226 Parser.Lex(); // Eat right bracket token.
4228 // Don't worry about range checking the value here. That's handled by
4229 // the is*() predicates.
4230 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, CE, 0,
4231 ARM_AM::no_shift, 0, 0,
4234 // If there's a pre-indexing writeback marker, '!', just add it as a token
4236 if (Parser.getTok().is(AsmToken::Exclaim)) {
4237 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4238 Parser.Lex(); // Eat the '!'.
4244 // The register offset is optionally preceded by a '+' or '-'
4245 bool isNegative = false;
4246 if (Parser.getTok().is(AsmToken::Minus)) {
4248 Parser.Lex(); // Eat the '-'.
4249 } else if (Parser.getTok().is(AsmToken::Plus)) {
4251 Parser.Lex(); // Eat the '+'.
4254 E = Parser.getTok().getLoc();
4255 int OffsetRegNum = tryParseRegister();
4256 if (OffsetRegNum == -1)
4257 return Error(E, "register expected");
4259 // If there's a shift operator, handle it.
4260 ARM_AM::ShiftOpc ShiftType = ARM_AM::no_shift;
4261 unsigned ShiftImm = 0;
4262 if (Parser.getTok().is(AsmToken::Comma)) {
4263 Parser.Lex(); // Eat the ','.
4264 if (parseMemRegOffsetShift(ShiftType, ShiftImm))
4268 // Now we should have the closing ']'
4269 E = Parser.getTok().getLoc();
4270 if (Parser.getTok().isNot(AsmToken::RBrac))
4271 return Error(E, "']' expected");
4272 Parser.Lex(); // Eat right bracket token.
4274 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, OffsetRegNum,
4275 ShiftType, ShiftImm, 0, isNegative,
4278 // If there's a pre-indexing writeback marker, '!', just add it as a token
4280 if (Parser.getTok().is(AsmToken::Exclaim)) {
4281 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4282 Parser.Lex(); // Eat the '!'.
4288 /// parseMemRegOffsetShift - one of these two:
4289 /// ( lsl | lsr | asr | ror ) , # shift_amount
4291 /// return true if it parses a shift otherwise it returns false.
4292 bool ARMAsmParser::parseMemRegOffsetShift(ARM_AM::ShiftOpc &St,
4294 SMLoc Loc = Parser.getTok().getLoc();
4295 const AsmToken &Tok = Parser.getTok();
4296 if (Tok.isNot(AsmToken::Identifier))
4298 StringRef ShiftName = Tok.getString();
4299 if (ShiftName == "lsl" || ShiftName == "LSL" ||
4300 ShiftName == "asl" || ShiftName == "ASL")
4302 else if (ShiftName == "lsr" || ShiftName == "LSR")
4304 else if (ShiftName == "asr" || ShiftName == "ASR")
4306 else if (ShiftName == "ror" || ShiftName == "ROR")
4308 else if (ShiftName == "rrx" || ShiftName == "RRX")
4311 return Error(Loc, "illegal shift operator");
4312 Parser.Lex(); // Eat shift type token.
4314 // rrx stands alone.
4316 if (St != ARM_AM::rrx) {
4317 Loc = Parser.getTok().getLoc();
4318 // A '#' and a shift amount.
4319 const AsmToken &HashTok = Parser.getTok();
4320 if (HashTok.isNot(AsmToken::Hash) &&
4321 HashTok.isNot(AsmToken::Dollar))
4322 return Error(HashTok.getLoc(), "'#' expected");
4323 Parser.Lex(); // Eat hash token.
4326 if (getParser().ParseExpression(Expr))
4328 // Range check the immediate.
4329 // lsl, ror: 0 <= imm <= 31
4330 // lsr, asr: 0 <= imm <= 32
4331 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
4333 return Error(Loc, "shift amount must be an immediate");
4334 int64_t Imm = CE->getValue();
4336 ((St == ARM_AM::lsl || St == ARM_AM::ror) && Imm > 31) ||
4337 ((St == ARM_AM::lsr || St == ARM_AM::asr) && Imm > 32))
4338 return Error(Loc, "immediate shift value out of range");
4345 /// parseFPImm - A floating point immediate expression operand.
4346 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4347 parseFPImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4348 // Anything that can accept a floating point constant as an operand
4349 // needs to go through here, as the regular ParseExpression is
4352 // This routine still creates a generic Immediate operand, containing
4353 // a bitcast of the 64-bit floating point value. The various operands
4354 // that accept floats can check whether the value is valid for them
4355 // via the standard is*() predicates.
4357 SMLoc S = Parser.getTok().getLoc();
4359 if (Parser.getTok().isNot(AsmToken::Hash) &&
4360 Parser.getTok().isNot(AsmToken::Dollar))
4361 return MatchOperand_NoMatch;
4363 // Disambiguate the VMOV forms that can accept an FP immediate.
4364 // vmov.f32 <sreg>, #imm
4365 // vmov.f64 <dreg>, #imm
4366 // vmov.f32 <dreg>, #imm @ vector f32x2
4367 // vmov.f32 <qreg>, #imm @ vector f32x4
4369 // There are also the NEON VMOV instructions which expect an
4370 // integer constant. Make sure we don't try to parse an FPImm
4372 // vmov.i{8|16|32|64} <dreg|qreg>, #imm
4373 ARMOperand *TyOp = static_cast<ARMOperand*>(Operands[2]);
4374 if (!TyOp->isToken() || (TyOp->getToken() != ".f32" &&
4375 TyOp->getToken() != ".f64"))
4376 return MatchOperand_NoMatch;
4378 Parser.Lex(); // Eat the '#'.
4380 // Handle negation, as that still comes through as a separate token.
4381 bool isNegative = false;
4382 if (Parser.getTok().is(AsmToken::Minus)) {
4386 const AsmToken &Tok = Parser.getTok();
4387 SMLoc Loc = Tok.getLoc();
4388 if (Tok.is(AsmToken::Real)) {
4389 APFloat RealVal(APFloat::IEEEsingle, Tok.getString());
4390 uint64_t IntVal = RealVal.bitcastToAPInt().getZExtValue();
4391 // If we had a '-' in front, toggle the sign bit.
4392 IntVal ^= (uint64_t)isNegative << 31;
4393 Parser.Lex(); // Eat the token.
4394 Operands.push_back(ARMOperand::CreateImm(
4395 MCConstantExpr::Create(IntVal, getContext()),
4396 S, Parser.getTok().getLoc()));
4397 return MatchOperand_Success;
4399 // Also handle plain integers. Instructions which allow floating point
4400 // immediates also allow a raw encoded 8-bit value.
4401 if (Tok.is(AsmToken::Integer)) {
4402 int64_t Val = Tok.getIntVal();
4403 Parser.Lex(); // Eat the token.
4404 if (Val > 255 || Val < 0) {
4405 Error(Loc, "encoded floating point value out of range");
4406 return MatchOperand_ParseFail;
4408 double RealVal = ARM_AM::getFPImmFloat(Val);
4409 Val = APFloat(APFloat::IEEEdouble, RealVal).bitcastToAPInt().getZExtValue();
4410 Operands.push_back(ARMOperand::CreateImm(
4411 MCConstantExpr::Create(Val, getContext()), S,
4412 Parser.getTok().getLoc()));
4413 return MatchOperand_Success;
4416 Error(Loc, "invalid floating point immediate");
4417 return MatchOperand_ParseFail;
4420 /// Parse a arm instruction operand. For now this parses the operand regardless
4421 /// of the mnemonic.
4422 bool ARMAsmParser::parseOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands,
4423 StringRef Mnemonic) {
4426 // Check if the current operand has a custom associated parser, if so, try to
4427 // custom parse the operand, or fallback to the general approach.
4428 OperandMatchResultTy ResTy = MatchOperandParserImpl(Operands, Mnemonic);
4429 if (ResTy == MatchOperand_Success)
4431 // If there wasn't a custom match, try the generic matcher below. Otherwise,
4432 // there was a match, but an error occurred, in which case, just return that
4433 // the operand parsing failed.
4434 if (ResTy == MatchOperand_ParseFail)
4437 switch (getLexer().getKind()) {
4439 Error(Parser.getTok().getLoc(), "unexpected token in operand");
4441 case AsmToken::Identifier: {
4442 if (!tryParseRegisterWithWriteBack(Operands))
4444 int Res = tryParseShiftRegister(Operands);
4445 if (Res == 0) // success
4447 else if (Res == -1) // irrecoverable error
4449 // If this is VMRS, check for the apsr_nzcv operand.
4450 if (Mnemonic == "vmrs" &&
4451 Parser.getTok().getString().equals_lower("apsr_nzcv")) {
4452 S = Parser.getTok().getLoc();
4454 Operands.push_back(ARMOperand::CreateToken("APSR_nzcv", S));
4458 // Fall though for the Identifier case that is not a register or a
4461 case AsmToken::LParen: // parenthesized expressions like (_strcmp-4)
4462 case AsmToken::Integer: // things like 1f and 2b as a branch targets
4463 case AsmToken::String: // quoted label names.
4464 case AsmToken::Dot: { // . as a branch target
4465 // This was not a register so parse other operands that start with an
4466 // identifier (like labels) as expressions and create them as immediates.
4467 const MCExpr *IdVal;
4468 S = Parser.getTok().getLoc();
4469 if (getParser().ParseExpression(IdVal))
4471 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4472 Operands.push_back(ARMOperand::CreateImm(IdVal, S, E));
4475 case AsmToken::LBrac:
4476 return parseMemory(Operands);
4477 case AsmToken::LCurly:
4478 return parseRegisterList(Operands);
4479 case AsmToken::Dollar:
4480 case AsmToken::Hash: {
4481 // #42 -> immediate.
4482 // TODO: ":lower16:" and ":upper16:" modifiers after # before immediate
4483 S = Parser.getTok().getLoc();
4485 bool isNegative = Parser.getTok().is(AsmToken::Minus);
4486 const MCExpr *ImmVal;
4487 if (getParser().ParseExpression(ImmVal))
4489 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ImmVal);
4491 int32_t Val = CE->getValue();
4492 if (isNegative && Val == 0)
4493 ImmVal = MCConstantExpr::Create(INT32_MIN, getContext());
4495 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4496 Operands.push_back(ARMOperand::CreateImm(ImmVal, S, E));
4499 case AsmToken::Colon: {
4500 // ":lower16:" and ":upper16:" expression prefixes
4501 // FIXME: Check it's an expression prefix,
4502 // e.g. (FOO - :lower16:BAR) isn't legal.
4503 ARMMCExpr::VariantKind RefKind;
4504 if (parsePrefix(RefKind))
4507 const MCExpr *SubExprVal;
4508 if (getParser().ParseExpression(SubExprVal))
4511 const MCExpr *ExprVal = ARMMCExpr::Create(RefKind, SubExprVal,
4513 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4514 Operands.push_back(ARMOperand::CreateImm(ExprVal, S, E));
4520 // parsePrefix - Parse ARM 16-bit relocations expression prefix, i.e.
4521 // :lower16: and :upper16:.
4522 bool ARMAsmParser::parsePrefix(ARMMCExpr::VariantKind &RefKind) {
4523 RefKind = ARMMCExpr::VK_ARM_None;
4525 // :lower16: and :upper16: modifiers
4526 assert(getLexer().is(AsmToken::Colon) && "expected a :");
4527 Parser.Lex(); // Eat ':'
4529 if (getLexer().isNot(AsmToken::Identifier)) {
4530 Error(Parser.getTok().getLoc(), "expected prefix identifier in operand");
4534 StringRef IDVal = Parser.getTok().getIdentifier();
4535 if (IDVal == "lower16") {
4536 RefKind = ARMMCExpr::VK_ARM_LO16;
4537 } else if (IDVal == "upper16") {
4538 RefKind = ARMMCExpr::VK_ARM_HI16;
4540 Error(Parser.getTok().getLoc(), "unexpected prefix in operand");
4545 if (getLexer().isNot(AsmToken::Colon)) {
4546 Error(Parser.getTok().getLoc(), "unexpected token after prefix");
4549 Parser.Lex(); // Eat the last ':'
4553 /// \brief Given a mnemonic, split out possible predication code and carry
4554 /// setting letters to form a canonical mnemonic and flags.
4556 // FIXME: Would be nice to autogen this.
4557 // FIXME: This is a bit of a maze of special cases.
4558 StringRef ARMAsmParser::splitMnemonic(StringRef Mnemonic,
4559 unsigned &PredicationCode,
4561 unsigned &ProcessorIMod,
4562 StringRef &ITMask) {
4563 PredicationCode = ARMCC::AL;
4564 CarrySetting = false;
4567 // Ignore some mnemonics we know aren't predicated forms.
4569 // FIXME: Would be nice to autogen this.
4570 if ((Mnemonic == "movs" && isThumb()) ||
4571 Mnemonic == "teq" || Mnemonic == "vceq" || Mnemonic == "svc" ||
4572 Mnemonic == "mls" || Mnemonic == "smmls" || Mnemonic == "vcls" ||
4573 Mnemonic == "vmls" || Mnemonic == "vnmls" || Mnemonic == "vacge" ||
4574 Mnemonic == "vcge" || Mnemonic == "vclt" || Mnemonic == "vacgt" ||
4575 Mnemonic == "vcgt" || Mnemonic == "vcle" || Mnemonic == "smlal" ||
4576 Mnemonic == "umaal" || Mnemonic == "umlal" || Mnemonic == "vabal" ||
4577 Mnemonic == "vmlal" || Mnemonic == "vpadal" || Mnemonic == "vqdmlal" ||
4578 Mnemonic == "fmuls")
4581 // First, split out any predication code. Ignore mnemonics we know aren't
4582 // predicated but do have a carry-set and so weren't caught above.
4583 if (Mnemonic != "adcs" && Mnemonic != "bics" && Mnemonic != "movs" &&
4584 Mnemonic != "muls" && Mnemonic != "smlals" && Mnemonic != "smulls" &&
4585 Mnemonic != "umlals" && Mnemonic != "umulls" && Mnemonic != "lsls" &&
4586 Mnemonic != "sbcs" && Mnemonic != "rscs") {
4587 unsigned CC = StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2))
4588 .Case("eq", ARMCC::EQ)
4589 .Case("ne", ARMCC::NE)
4590 .Case("hs", ARMCC::HS)
4591 .Case("cs", ARMCC::HS)
4592 .Case("lo", ARMCC::LO)
4593 .Case("cc", ARMCC::LO)
4594 .Case("mi", ARMCC::MI)
4595 .Case("pl", ARMCC::PL)
4596 .Case("vs", ARMCC::VS)
4597 .Case("vc", ARMCC::VC)
4598 .Case("hi", ARMCC::HI)
4599 .Case("ls", ARMCC::LS)
4600 .Case("ge", ARMCC::GE)
4601 .Case("lt", ARMCC::LT)
4602 .Case("gt", ARMCC::GT)
4603 .Case("le", ARMCC::LE)
4604 .Case("al", ARMCC::AL)
4607 Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 2);
4608 PredicationCode = CC;
4612 // Next, determine if we have a carry setting bit. We explicitly ignore all
4613 // the instructions we know end in 's'.
4614 if (Mnemonic.endswith("s") &&
4615 !(Mnemonic == "cps" || Mnemonic == "mls" ||
4616 Mnemonic == "mrs" || Mnemonic == "smmls" || Mnemonic == "vabs" ||
4617 Mnemonic == "vcls" || Mnemonic == "vmls" || Mnemonic == "vmrs" ||
4618 Mnemonic == "vnmls" || Mnemonic == "vqabs" || Mnemonic == "vrecps" ||
4619 Mnemonic == "vrsqrts" || Mnemonic == "srs" || Mnemonic == "flds" ||
4620 Mnemonic == "fmrs" || Mnemonic == "fsqrts" || Mnemonic == "fsubs" ||
4621 Mnemonic == "fsts" || Mnemonic == "fcpys" || Mnemonic == "fdivs" ||
4622 Mnemonic == "fmuls" || Mnemonic == "fcmps" || Mnemonic == "fcmpzs" ||
4623 (Mnemonic == "movs" && isThumb()))) {
4624 Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 1);
4625 CarrySetting = true;
4628 // The "cps" instruction can have a interrupt mode operand which is glued into
4629 // the mnemonic. Check if this is the case, split it and parse the imod op
4630 if (Mnemonic.startswith("cps")) {
4631 // Split out any imod code.
4633 StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2, 2))
4634 .Case("ie", ARM_PROC::IE)
4635 .Case("id", ARM_PROC::ID)
4638 Mnemonic = Mnemonic.slice(0, Mnemonic.size()-2);
4639 ProcessorIMod = IMod;
4643 // The "it" instruction has the condition mask on the end of the mnemonic.
4644 if (Mnemonic.startswith("it")) {
4645 ITMask = Mnemonic.slice(2, Mnemonic.size());
4646 Mnemonic = Mnemonic.slice(0, 2);
4652 /// \brief Given a canonical mnemonic, determine if the instruction ever allows
4653 /// inclusion of carry set or predication code operands.
4655 // FIXME: It would be nice to autogen this.
4657 getMnemonicAcceptInfo(StringRef Mnemonic, bool &CanAcceptCarrySet,
4658 bool &CanAcceptPredicationCode) {
4659 if (Mnemonic == "and" || Mnemonic == "lsl" || Mnemonic == "lsr" ||
4660 Mnemonic == "rrx" || Mnemonic == "ror" || Mnemonic == "sub" ||
4661 Mnemonic == "add" || Mnemonic == "adc" ||
4662 Mnemonic == "mul" || Mnemonic == "bic" || Mnemonic == "asr" ||
4663 Mnemonic == "orr" || Mnemonic == "mvn" ||
4664 Mnemonic == "rsb" || Mnemonic == "rsc" || Mnemonic == "orn" ||
4665 Mnemonic == "sbc" || Mnemonic == "eor" || Mnemonic == "neg" ||
4666 (!isThumb() && (Mnemonic == "smull" || Mnemonic == "mov" ||
4667 Mnemonic == "mla" || Mnemonic == "smlal" ||
4668 Mnemonic == "umlal" || Mnemonic == "umull"))) {
4669 CanAcceptCarrySet = true;
4671 CanAcceptCarrySet = false;
4673 if (Mnemonic == "cbnz" || Mnemonic == "setend" || Mnemonic == "dmb" ||
4674 Mnemonic == "cps" || Mnemonic == "mcr2" || Mnemonic == "it" ||
4675 Mnemonic == "mcrr2" || Mnemonic == "cbz" || Mnemonic == "cdp2" ||
4676 Mnemonic == "trap" || Mnemonic == "mrc2" || Mnemonic == "mrrc2" ||
4677 Mnemonic == "dsb" || Mnemonic == "isb" || Mnemonic == "setend" ||
4678 (Mnemonic == "clrex" && !isThumb()) ||
4679 (Mnemonic == "nop" && isThumbOne()) ||
4680 ((Mnemonic == "pld" || Mnemonic == "pli" || Mnemonic == "pldw" ||
4681 Mnemonic == "ldc2" || Mnemonic == "ldc2l" ||
4682 Mnemonic == "stc2" || Mnemonic == "stc2l") && !isThumb()) ||
4683 ((Mnemonic.startswith("rfe") || Mnemonic.startswith("srs")) &&
4685 Mnemonic.startswith("cps") || (Mnemonic == "movs" && isThumbOne())) {
4686 CanAcceptPredicationCode = false;
4688 CanAcceptPredicationCode = true;
4691 if (Mnemonic == "bkpt" || Mnemonic == "mcr" || Mnemonic == "mcrr" ||
4692 Mnemonic == "mrc" || Mnemonic == "mrrc" || Mnemonic == "cdp")
4693 CanAcceptPredicationCode = false;
4697 bool ARMAsmParser::shouldOmitCCOutOperand(StringRef Mnemonic,
4698 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4699 // FIXME: This is all horribly hacky. We really need a better way to deal
4700 // with optional operands like this in the matcher table.
4702 // The 'mov' mnemonic is special. One variant has a cc_out operand, while
4703 // another does not. Specifically, the MOVW instruction does not. So we
4704 // special case it here and remove the defaulted (non-setting) cc_out
4705 // operand if that's the instruction we're trying to match.
4707 // We do this as post-processing of the explicit operands rather than just
4708 // conditionally adding the cc_out in the first place because we need
4709 // to check the type of the parsed immediate operand.
4710 if (Mnemonic == "mov" && Operands.size() > 4 && !isThumb() &&
4711 !static_cast<ARMOperand*>(Operands[4])->isARMSOImm() &&
4712 static_cast<ARMOperand*>(Operands[4])->isImm0_65535Expr() &&
4713 static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
4716 // Register-register 'add' for thumb does not have a cc_out operand
4717 // when there are only two register operands.
4718 if (isThumb() && Mnemonic == "add" && Operands.size() == 5 &&
4719 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4720 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4721 static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
4723 // Register-register 'add' for thumb does not have a cc_out operand
4724 // when it's an ADD Rdm, SP, {Rdm|#imm0_255} instruction. We do
4725 // have to check the immediate range here since Thumb2 has a variant
4726 // that can handle a different range and has a cc_out operand.
4727 if (((isThumb() && Mnemonic == "add") ||
4728 (isThumbTwo() && Mnemonic == "sub")) &&
4729 Operands.size() == 6 &&
4730 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4731 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4732 static_cast<ARMOperand*>(Operands[4])->getReg() == ARM::SP &&
4733 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
4734 (static_cast<ARMOperand*>(Operands[5])->isReg() ||
4735 static_cast<ARMOperand*>(Operands[5])->isImm0_1020s4()))
4737 // For Thumb2, add/sub immediate does not have a cc_out operand for the
4738 // imm0_4095 variant. That's the least-preferred variant when
4739 // selecting via the generic "add" mnemonic, so to know that we
4740 // should remove the cc_out operand, we have to explicitly check that
4741 // it's not one of the other variants. Ugh.
4742 if (isThumbTwo() && (Mnemonic == "add" || Mnemonic == "sub") &&
4743 Operands.size() == 6 &&
4744 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4745 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4746 static_cast<ARMOperand*>(Operands[5])->isImm()) {
4747 // Nest conditions rather than one big 'if' statement for readability.
4749 // If either register is a high reg, it's either one of the SP
4750 // variants (handled above) or a 32-bit encoding, so we just
4751 // check against T3. If the second register is the PC, this is an
4752 // alternate form of ADR, which uses encoding T4, so check for that too.
4753 if ((!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
4754 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg())) &&
4755 static_cast<ARMOperand*>(Operands[4])->getReg() != ARM::PC &&
4756 static_cast<ARMOperand*>(Operands[5])->isT2SOImm())
4758 // If both registers are low, we're in an IT block, and the immediate is
4759 // in range, we should use encoding T1 instead, which has a cc_out.
4761 isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) &&
4762 isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) &&
4763 static_cast<ARMOperand*>(Operands[5])->isImm0_7())
4766 // Otherwise, we use encoding T4, which does not have a cc_out
4771 // The thumb2 multiply instruction doesn't have a CCOut register, so
4772 // if we have a "mul" mnemonic in Thumb mode, check if we'll be able to
4773 // use the 16-bit encoding or not.
4774 if (isThumbTwo() && Mnemonic == "mul" && Operands.size() == 6 &&
4775 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
4776 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4777 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4778 static_cast<ARMOperand*>(Operands[5])->isReg() &&
4779 // If the registers aren't low regs, the destination reg isn't the
4780 // same as one of the source regs, or the cc_out operand is zero
4781 // outside of an IT block, we have to use the 32-bit encoding, so
4782 // remove the cc_out operand.
4783 (!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
4784 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) ||
4785 !isARMLowRegister(static_cast<ARMOperand*>(Operands[5])->getReg()) ||
4787 (static_cast<ARMOperand*>(Operands[3])->getReg() !=
4788 static_cast<ARMOperand*>(Operands[5])->getReg() &&
4789 static_cast<ARMOperand*>(Operands[3])->getReg() !=
4790 static_cast<ARMOperand*>(Operands[4])->getReg())))
4793 // Also check the 'mul' syntax variant that doesn't specify an explicit
4794 // destination register.
4795 if (isThumbTwo() && Mnemonic == "mul" && Operands.size() == 5 &&
4796 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
4797 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4798 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4799 // If the registers aren't low regs or the cc_out operand is zero
4800 // outside of an IT block, we have to use the 32-bit encoding, so
4801 // remove the cc_out operand.
4802 (!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
4803 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) ||
4809 // Register-register 'add/sub' for thumb does not have a cc_out operand
4810 // when it's an ADD/SUB SP, #imm. Be lenient on count since there's also
4811 // the "add/sub SP, SP, #imm" version. If the follow-up operands aren't
4812 // right, this will result in better diagnostics (which operand is off)
4814 if (isThumb() && (Mnemonic == "add" || Mnemonic == "sub") &&
4815 (Operands.size() == 5 || Operands.size() == 6) &&
4816 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4817 static_cast<ARMOperand*>(Operands[3])->getReg() == ARM::SP &&
4818 static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
4824 static bool isDataTypeToken(StringRef Tok) {
4825 return Tok == ".8" || Tok == ".16" || Tok == ".32" || Tok == ".64" ||
4826 Tok == ".i8" || Tok == ".i16" || Tok == ".i32" || Tok == ".i64" ||
4827 Tok == ".u8" || Tok == ".u16" || Tok == ".u32" || Tok == ".u64" ||
4828 Tok == ".s8" || Tok == ".s16" || Tok == ".s32" || Tok == ".s64" ||
4829 Tok == ".p8" || Tok == ".p16" || Tok == ".f32" || Tok == ".f64" ||
4830 Tok == ".f" || Tok == ".d";
4833 // FIXME: This bit should probably be handled via an explicit match class
4834 // in the .td files that matches the suffix instead of having it be
4835 // a literal string token the way it is now.
4836 static bool doesIgnoreDataTypeSuffix(StringRef Mnemonic, StringRef DT) {
4837 return Mnemonic.startswith("vldm") || Mnemonic.startswith("vstm");
4840 static void applyMnemonicAliases(StringRef &Mnemonic, unsigned Features);
4841 /// Parse an arm instruction mnemonic followed by its operands.
4842 bool ARMAsmParser::ParseInstruction(StringRef Name, SMLoc NameLoc,
4843 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4844 // Apply mnemonic aliases before doing anything else, as the destination
4845 // mnemnonic may include suffices and we want to handle them normally.
4846 // The generic tblgen'erated code does this later, at the start of
4847 // MatchInstructionImpl(), but that's too late for aliases that include
4848 // any sort of suffix.
4849 unsigned AvailableFeatures = getAvailableFeatures();
4850 applyMnemonicAliases(Name, AvailableFeatures);
4852 // First check for the ARM-specific .req directive.
4853 if (Parser.getTok().is(AsmToken::Identifier) &&
4854 Parser.getTok().getIdentifier() == ".req") {
4855 parseDirectiveReq(Name, NameLoc);
4856 // We always return 'error' for this, as we're done with this
4857 // statement and don't need to match the 'instruction."
4861 // Create the leading tokens for the mnemonic, split by '.' characters.
4862 size_t Start = 0, Next = Name.find('.');
4863 StringRef Mnemonic = Name.slice(Start, Next);
4865 // Split out the predication code and carry setting flag from the mnemonic.
4866 unsigned PredicationCode;
4867 unsigned ProcessorIMod;
4870 Mnemonic = splitMnemonic(Mnemonic, PredicationCode, CarrySetting,
4871 ProcessorIMod, ITMask);
4873 // In Thumb1, only the branch (B) instruction can be predicated.
4874 if (isThumbOne() && PredicationCode != ARMCC::AL && Mnemonic != "b") {
4875 Parser.EatToEndOfStatement();
4876 return Error(NameLoc, "conditional execution not supported in Thumb1");
4879 Operands.push_back(ARMOperand::CreateToken(Mnemonic, NameLoc));
4881 // Handle the IT instruction ITMask. Convert it to a bitmask. This
4882 // is the mask as it will be for the IT encoding if the conditional
4883 // encoding has a '1' as it's bit0 (i.e. 't' ==> '1'). In the case
4884 // where the conditional bit0 is zero, the instruction post-processing
4885 // will adjust the mask accordingly.
4886 if (Mnemonic == "it") {
4887 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + 2);
4888 if (ITMask.size() > 3) {
4889 Parser.EatToEndOfStatement();
4890 return Error(Loc, "too many conditions on IT instruction");
4893 for (unsigned i = ITMask.size(); i != 0; --i) {
4894 char pos = ITMask[i - 1];
4895 if (pos != 't' && pos != 'e') {
4896 Parser.EatToEndOfStatement();
4897 return Error(Loc, "illegal IT block condition mask '" + ITMask + "'");
4900 if (ITMask[i - 1] == 't')
4903 Operands.push_back(ARMOperand::CreateITMask(Mask, Loc));
4906 // FIXME: This is all a pretty gross hack. We should automatically handle
4907 // optional operands like this via tblgen.
4909 // Next, add the CCOut and ConditionCode operands, if needed.
4911 // For mnemonics which can ever incorporate a carry setting bit or predication
4912 // code, our matching model involves us always generating CCOut and
4913 // ConditionCode operands to match the mnemonic "as written" and then we let
4914 // the matcher deal with finding the right instruction or generating an
4915 // appropriate error.
4916 bool CanAcceptCarrySet, CanAcceptPredicationCode;
4917 getMnemonicAcceptInfo(Mnemonic, CanAcceptCarrySet, CanAcceptPredicationCode);
4919 // If we had a carry-set on an instruction that can't do that, issue an
4921 if (!CanAcceptCarrySet && CarrySetting) {
4922 Parser.EatToEndOfStatement();
4923 return Error(NameLoc, "instruction '" + Mnemonic +
4924 "' can not set flags, but 's' suffix specified");
4926 // If we had a predication code on an instruction that can't do that, issue an
4928 if (!CanAcceptPredicationCode && PredicationCode != ARMCC::AL) {
4929 Parser.EatToEndOfStatement();
4930 return Error(NameLoc, "instruction '" + Mnemonic +
4931 "' is not predicable, but condition code specified");
4934 // Add the carry setting operand, if necessary.
4935 if (CanAcceptCarrySet) {
4936 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Mnemonic.size());
4937 Operands.push_back(ARMOperand::CreateCCOut(CarrySetting ? ARM::CPSR : 0,
4941 // Add the predication code operand, if necessary.
4942 if (CanAcceptPredicationCode) {
4943 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Mnemonic.size() +
4945 Operands.push_back(ARMOperand::CreateCondCode(
4946 ARMCC::CondCodes(PredicationCode), Loc));
4949 // Add the processor imod operand, if necessary.
4950 if (ProcessorIMod) {
4951 Operands.push_back(ARMOperand::CreateImm(
4952 MCConstantExpr::Create(ProcessorIMod, getContext()),
4956 // Add the remaining tokens in the mnemonic.
4957 while (Next != StringRef::npos) {
4959 Next = Name.find('.', Start + 1);
4960 StringRef ExtraToken = Name.slice(Start, Next);
4962 // Some NEON instructions have an optional datatype suffix that is
4963 // completely ignored. Check for that.
4964 if (isDataTypeToken(ExtraToken) &&
4965 doesIgnoreDataTypeSuffix(Mnemonic, ExtraToken))
4968 if (ExtraToken != ".n") {
4969 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Start);
4970 Operands.push_back(ARMOperand::CreateToken(ExtraToken, Loc));
4974 // Read the remaining operands.
4975 if (getLexer().isNot(AsmToken::EndOfStatement)) {
4976 // Read the first operand.
4977 if (parseOperand(Operands, Mnemonic)) {
4978 Parser.EatToEndOfStatement();
4982 while (getLexer().is(AsmToken::Comma)) {
4983 Parser.Lex(); // Eat the comma.
4985 // Parse and remember the operand.
4986 if (parseOperand(Operands, Mnemonic)) {
4987 Parser.EatToEndOfStatement();
4993 if (getLexer().isNot(AsmToken::EndOfStatement)) {
4994 SMLoc Loc = getLexer().getLoc();
4995 Parser.EatToEndOfStatement();
4996 return Error(Loc, "unexpected token in argument list");
4999 Parser.Lex(); // Consume the EndOfStatement
5001 // Some instructions, mostly Thumb, have forms for the same mnemonic that
5002 // do and don't have a cc_out optional-def operand. With some spot-checks
5003 // of the operand list, we can figure out which variant we're trying to
5004 // parse and adjust accordingly before actually matching. We shouldn't ever
5005 // try to remove a cc_out operand that was explicitly set on the the
5006 // mnemonic, of course (CarrySetting == true). Reason number #317 the
5007 // table driven matcher doesn't fit well with the ARM instruction set.
5008 if (!CarrySetting && shouldOmitCCOutOperand(Mnemonic, Operands)) {
5009 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5010 Operands.erase(Operands.begin() + 1);
5014 // ARM mode 'blx' need special handling, as the register operand version
5015 // is predicable, but the label operand version is not. So, we can't rely
5016 // on the Mnemonic based checking to correctly figure out when to put
5017 // a k_CondCode operand in the list. If we're trying to match the label
5018 // version, remove the k_CondCode operand here.
5019 if (!isThumb() && Mnemonic == "blx" && Operands.size() == 3 &&
5020 static_cast<ARMOperand*>(Operands[2])->isImm()) {
5021 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5022 Operands.erase(Operands.begin() + 1);
5026 // The vector-compare-to-zero instructions have a literal token "#0" at
5027 // the end that comes to here as an immediate operand. Convert it to a
5028 // token to play nicely with the matcher.
5029 if ((Mnemonic == "vceq" || Mnemonic == "vcge" || Mnemonic == "vcgt" ||
5030 Mnemonic == "vcle" || Mnemonic == "vclt") && Operands.size() == 6 &&
5031 static_cast<ARMOperand*>(Operands[5])->isImm()) {
5032 ARMOperand *Op = static_cast<ARMOperand*>(Operands[5]);
5033 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm());
5034 if (CE && CE->getValue() == 0) {
5035 Operands.erase(Operands.begin() + 5);
5036 Operands.push_back(ARMOperand::CreateToken("#0", Op->getStartLoc()));
5040 // VCMP{E} does the same thing, but with a different operand count.
5041 if ((Mnemonic == "vcmp" || Mnemonic == "vcmpe") && Operands.size() == 5 &&
5042 static_cast<ARMOperand*>(Operands[4])->isImm()) {
5043 ARMOperand *Op = static_cast<ARMOperand*>(Operands[4]);
5044 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm());
5045 if (CE && CE->getValue() == 0) {
5046 Operands.erase(Operands.begin() + 4);
5047 Operands.push_back(ARMOperand::CreateToken("#0", Op->getStartLoc()));
5051 // Similarly, the Thumb1 "RSB" instruction has a literal "#0" on the
5052 // end. Convert it to a token here. Take care not to convert those
5053 // that should hit the Thumb2 encoding.
5054 if (Mnemonic == "rsb" && isThumb() && Operands.size() == 6 &&
5055 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5056 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5057 static_cast<ARMOperand*>(Operands[5])->isImm()) {
5058 ARMOperand *Op = static_cast<ARMOperand*>(Operands[5]);
5059 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm());
5060 if (CE && CE->getValue() == 0 &&
5062 // The cc_out operand matches the IT block.
5063 ((inITBlock() != CarrySetting) &&
5064 // Neither register operand is a high register.
5065 (isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) &&
5066 isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()))))){
5067 Operands.erase(Operands.begin() + 5);
5068 Operands.push_back(ARMOperand::CreateToken("#0", Op->getStartLoc()));
5076 // Validate context-sensitive operand constraints.
5078 // return 'true' if register list contains non-low GPR registers,
5079 // 'false' otherwise. If Reg is in the register list or is HiReg, set
5080 // 'containsReg' to true.
5081 static bool checkLowRegisterList(MCInst Inst, unsigned OpNo, unsigned Reg,
5082 unsigned HiReg, bool &containsReg) {
5083 containsReg = false;
5084 for (unsigned i = OpNo; i < Inst.getNumOperands(); ++i) {
5085 unsigned OpReg = Inst.getOperand(i).getReg();
5088 // Anything other than a low register isn't legal here.
5089 if (!isARMLowRegister(OpReg) && (!HiReg || OpReg != HiReg))
5095 // Check if the specified regisgter is in the register list of the inst,
5096 // starting at the indicated operand number.
5097 static bool listContainsReg(MCInst &Inst, unsigned OpNo, unsigned Reg) {
5098 for (unsigned i = OpNo; i < Inst.getNumOperands(); ++i) {
5099 unsigned OpReg = Inst.getOperand(i).getReg();
5106 // FIXME: We would really prefer to have MCInstrInfo (the wrapper around
5107 // the ARMInsts array) instead. Getting that here requires awkward
5108 // API changes, though. Better way?
5110 extern const MCInstrDesc ARMInsts[];
5112 static const MCInstrDesc &getInstDesc(unsigned Opcode) {
5113 return ARMInsts[Opcode];
5116 // FIXME: We would really like to be able to tablegen'erate this.
5118 validateInstruction(MCInst &Inst,
5119 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
5120 const MCInstrDesc &MCID = getInstDesc(Inst.getOpcode());
5121 SMLoc Loc = Operands[0]->getStartLoc();
5122 // Check the IT block state first.
5123 // NOTE: BKPT instruction has the interesting property of being
5124 // allowed in IT blocks, but not being predicable. It just always
5126 if (inITBlock() && Inst.getOpcode() != ARM::tBKPT &&
5127 Inst.getOpcode() != ARM::BKPT) {
5129 if (ITState.FirstCond)
5130 ITState.FirstCond = false;
5132 bit = (ITState.Mask >> (5 - ITState.CurPosition)) & 1;
5133 // The instruction must be predicable.
5134 if (!MCID.isPredicable())
5135 return Error(Loc, "instructions in IT block must be predicable");
5136 unsigned Cond = Inst.getOperand(MCID.findFirstPredOperandIdx()).getImm();
5137 unsigned ITCond = bit ? ITState.Cond :
5138 ARMCC::getOppositeCondition(ITState.Cond);
5139 if (Cond != ITCond) {
5140 // Find the condition code Operand to get its SMLoc information.
5142 for (unsigned i = 1; i < Operands.size(); ++i)
5143 if (static_cast<ARMOperand*>(Operands[i])->isCondCode())
5144 CondLoc = Operands[i]->getStartLoc();
5145 return Error(CondLoc, "incorrect condition in IT block; got '" +
5146 StringRef(ARMCondCodeToString(ARMCC::CondCodes(Cond))) +
5147 "', but expected '" +
5148 ARMCondCodeToString(ARMCC::CondCodes(ITCond)) + "'");
5150 // Check for non-'al' condition codes outside of the IT block.
5151 } else if (isThumbTwo() && MCID.isPredicable() &&
5152 Inst.getOperand(MCID.findFirstPredOperandIdx()).getImm() !=
5153 ARMCC::AL && Inst.getOpcode() != ARM::tB &&
5154 Inst.getOpcode() != ARM::t2B)
5155 return Error(Loc, "predicated instructions must be in IT block");
5157 switch (Inst.getOpcode()) {
5160 case ARM::LDRD_POST:
5162 // Rt2 must be Rt + 1.
5163 unsigned Rt = getARMRegisterNumbering(Inst.getOperand(0).getReg());
5164 unsigned Rt2 = getARMRegisterNumbering(Inst.getOperand(1).getReg());
5166 return Error(Operands[3]->getStartLoc(),
5167 "destination operands must be sequential");
5171 // Rt2 must be Rt + 1.
5172 unsigned Rt = getARMRegisterNumbering(Inst.getOperand(0).getReg());
5173 unsigned Rt2 = getARMRegisterNumbering(Inst.getOperand(1).getReg());
5175 return Error(Operands[3]->getStartLoc(),
5176 "source operands must be sequential");
5180 case ARM::STRD_POST:
5182 // Rt2 must be Rt + 1.
5183 unsigned Rt = getARMRegisterNumbering(Inst.getOperand(1).getReg());
5184 unsigned Rt2 = getARMRegisterNumbering(Inst.getOperand(2).getReg());
5186 return Error(Operands[3]->getStartLoc(),
5187 "source operands must be sequential");
5192 // width must be in range [1, 32-lsb]
5193 unsigned lsb = Inst.getOperand(2).getImm();
5194 unsigned widthm1 = Inst.getOperand(3).getImm();
5195 if (widthm1 >= 32 - lsb)
5196 return Error(Operands[5]->getStartLoc(),
5197 "bitfield width must be in range [1,32-lsb]");
5201 // If we're parsing Thumb2, the .w variant is available and handles
5202 // most cases that are normally illegal for a Thumb1 LDM
5203 // instruction. We'll make the transformation in processInstruction()
5206 // Thumb LDM instructions are writeback iff the base register is not
5207 // in the register list.
5208 unsigned Rn = Inst.getOperand(0).getReg();
5209 bool hasWritebackToken =
5210 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
5211 static_cast<ARMOperand*>(Operands[3])->getToken() == "!");
5212 bool listContainsBase;
5213 if (checkLowRegisterList(Inst, 3, Rn, 0, listContainsBase) && !isThumbTwo())
5214 return Error(Operands[3 + hasWritebackToken]->getStartLoc(),
5215 "registers must be in range r0-r7");
5216 // If we should have writeback, then there should be a '!' token.
5217 if (!listContainsBase && !hasWritebackToken && !isThumbTwo())
5218 return Error(Operands[2]->getStartLoc(),
5219 "writeback operator '!' expected");
5220 // If we should not have writeback, there must not be a '!'. This is
5221 // true even for the 32-bit wide encodings.
5222 if (listContainsBase && hasWritebackToken)
5223 return Error(Operands[3]->getStartLoc(),
5224 "writeback operator '!' not allowed when base register "
5225 "in register list");
5229 case ARM::t2LDMIA_UPD: {
5230 if (listContainsReg(Inst, 3, Inst.getOperand(0).getReg()))
5231 return Error(Operands[4]->getStartLoc(),
5232 "writeback operator '!' not allowed when base register "
5233 "in register list");
5236 // Like for ldm/stm, push and pop have hi-reg handling version in Thumb2,
5237 // so only issue a diagnostic for thumb1. The instructions will be
5238 // switched to the t2 encodings in processInstruction() if necessary.
5240 bool listContainsBase;
5241 if (checkLowRegisterList(Inst, 2, 0, ARM::PC, listContainsBase) &&
5243 return Error(Operands[2]->getStartLoc(),
5244 "registers must be in range r0-r7 or pc");
5248 bool listContainsBase;
5249 if (checkLowRegisterList(Inst, 2, 0, ARM::LR, listContainsBase) &&
5251 return Error(Operands[2]->getStartLoc(),
5252 "registers must be in range r0-r7 or lr");
5255 case ARM::tSTMIA_UPD: {
5256 bool listContainsBase;
5257 if (checkLowRegisterList(Inst, 4, 0, 0, listContainsBase) && !isThumbTwo())
5258 return Error(Operands[4]->getStartLoc(),
5259 "registers must be in range r0-r7");
5267 static unsigned getRealVSTOpcode(unsigned Opc, unsigned &Spacing) {
5269 default: llvm_unreachable("unexpected opcode!");
5271 case ARM::VST1LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST1LNd8_UPD;
5272 case ARM::VST1LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST1LNd16_UPD;
5273 case ARM::VST1LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST1LNd32_UPD;
5274 case ARM::VST1LNdWB_register_Asm_8: Spacing = 1; return ARM::VST1LNd8_UPD;
5275 case ARM::VST1LNdWB_register_Asm_16: Spacing = 1; return ARM::VST1LNd16_UPD;
5276 case ARM::VST1LNdWB_register_Asm_32: Spacing = 1; return ARM::VST1LNd32_UPD;
5277 case ARM::VST1LNdAsm_8: Spacing = 1; return ARM::VST1LNd8;
5278 case ARM::VST1LNdAsm_16: Spacing = 1; return ARM::VST1LNd16;
5279 case ARM::VST1LNdAsm_32: Spacing = 1; return ARM::VST1LNd32;
5282 case ARM::VST2LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST2LNd8_UPD;
5283 case ARM::VST2LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST2LNd16_UPD;
5284 case ARM::VST2LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST2LNd32_UPD;
5285 case ARM::VST2LNqWB_fixed_Asm_16: Spacing = 2; return ARM::VST2LNq16_UPD;
5286 case ARM::VST2LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST2LNq32_UPD;
5288 case ARM::VST2LNdWB_register_Asm_8: Spacing = 1; return ARM::VST2LNd8_UPD;
5289 case ARM::VST2LNdWB_register_Asm_16: Spacing = 1; return ARM::VST2LNd16_UPD;
5290 case ARM::VST2LNdWB_register_Asm_32: Spacing = 1; return ARM::VST2LNd32_UPD;
5291 case ARM::VST2LNqWB_register_Asm_16: Spacing = 2; return ARM::VST2LNq16_UPD;
5292 case ARM::VST2LNqWB_register_Asm_32: Spacing = 2; return ARM::VST2LNq32_UPD;
5294 case ARM::VST2LNdAsm_8: Spacing = 1; return ARM::VST2LNd8;
5295 case ARM::VST2LNdAsm_16: Spacing = 1; return ARM::VST2LNd16;
5296 case ARM::VST2LNdAsm_32: Spacing = 1; return ARM::VST2LNd32;
5297 case ARM::VST2LNqAsm_16: Spacing = 2; return ARM::VST2LNq16;
5298 case ARM::VST2LNqAsm_32: Spacing = 2; return ARM::VST2LNq32;
5301 case ARM::VST3LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST3LNd8_UPD;
5302 case ARM::VST3LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST3LNd16_UPD;
5303 case ARM::VST3LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST3LNd32_UPD;
5304 case ARM::VST3LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VST3LNq16_UPD;
5305 case ARM::VST3LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST3LNq32_UPD;
5306 case ARM::VST3LNdWB_register_Asm_8: Spacing = 1; return ARM::VST3LNd8_UPD;
5307 case ARM::VST3LNdWB_register_Asm_16: Spacing = 1; return ARM::VST3LNd16_UPD;
5308 case ARM::VST3LNdWB_register_Asm_32: Spacing = 1; return ARM::VST3LNd32_UPD;
5309 case ARM::VST3LNqWB_register_Asm_16: Spacing = 2; return ARM::VST3LNq16_UPD;
5310 case ARM::VST3LNqWB_register_Asm_32: Spacing = 2; return ARM::VST3LNq32_UPD;
5311 case ARM::VST3LNdAsm_8: Spacing = 1; return ARM::VST3LNd8;
5312 case ARM::VST3LNdAsm_16: Spacing = 1; return ARM::VST3LNd16;
5313 case ARM::VST3LNdAsm_32: Spacing = 1; return ARM::VST3LNd32;
5314 case ARM::VST3LNqAsm_16: Spacing = 2; return ARM::VST3LNq16;
5315 case ARM::VST3LNqAsm_32: Spacing = 2; return ARM::VST3LNq32;
5318 case ARM::VST3dWB_fixed_Asm_8: Spacing = 1; return ARM::VST3d8_UPD;
5319 case ARM::VST3dWB_fixed_Asm_16: Spacing = 1; return ARM::VST3d16_UPD;
5320 case ARM::VST3dWB_fixed_Asm_32: Spacing = 1; return ARM::VST3d32_UPD;
5321 case ARM::VST3qWB_fixed_Asm_8: Spacing = 2; return ARM::VST3q8_UPD;
5322 case ARM::VST3qWB_fixed_Asm_16: Spacing = 2; return ARM::VST3q16_UPD;
5323 case ARM::VST3qWB_fixed_Asm_32: Spacing = 2; return ARM::VST3q32_UPD;
5324 case ARM::VST3dWB_register_Asm_8: Spacing = 1; return ARM::VST3d8_UPD;
5325 case ARM::VST3dWB_register_Asm_16: Spacing = 1; return ARM::VST3d16_UPD;
5326 case ARM::VST3dWB_register_Asm_32: Spacing = 1; return ARM::VST3d32_UPD;
5327 case ARM::VST3qWB_register_Asm_8: Spacing = 2; return ARM::VST3q8_UPD;
5328 case ARM::VST3qWB_register_Asm_16: Spacing = 2; return ARM::VST3q16_UPD;
5329 case ARM::VST3qWB_register_Asm_32: Spacing = 2; return ARM::VST3q32_UPD;
5330 case ARM::VST3dAsm_8: Spacing = 1; return ARM::VST3d8;
5331 case ARM::VST3dAsm_16: Spacing = 1; return ARM::VST3d16;
5332 case ARM::VST3dAsm_32: Spacing = 1; return ARM::VST3d32;
5333 case ARM::VST3qAsm_8: Spacing = 2; return ARM::VST3q8;
5334 case ARM::VST3qAsm_16: Spacing = 2; return ARM::VST3q16;
5335 case ARM::VST3qAsm_32: Spacing = 2; return ARM::VST3q32;
5338 case ARM::VST4LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST4LNd8_UPD;
5339 case ARM::VST4LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST4LNd16_UPD;
5340 case ARM::VST4LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST4LNd32_UPD;
5341 case ARM::VST4LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VST4LNq16_UPD;
5342 case ARM::VST4LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST4LNq32_UPD;
5343 case ARM::VST4LNdWB_register_Asm_8: Spacing = 1; return ARM::VST4LNd8_UPD;
5344 case ARM::VST4LNdWB_register_Asm_16: Spacing = 1; return ARM::VST4LNd16_UPD;
5345 case ARM::VST4LNdWB_register_Asm_32: Spacing = 1; return ARM::VST4LNd32_UPD;
5346 case ARM::VST4LNqWB_register_Asm_16: Spacing = 2; return ARM::VST4LNq16_UPD;
5347 case ARM::VST4LNqWB_register_Asm_32: Spacing = 2; return ARM::VST4LNq32_UPD;
5348 case ARM::VST4LNdAsm_8: Spacing = 1; return ARM::VST4LNd8;
5349 case ARM::VST4LNdAsm_16: Spacing = 1; return ARM::VST4LNd16;
5350 case ARM::VST4LNdAsm_32: Spacing = 1; return ARM::VST4LNd32;
5351 case ARM::VST4LNqAsm_16: Spacing = 2; return ARM::VST4LNq16;
5352 case ARM::VST4LNqAsm_32: Spacing = 2; return ARM::VST4LNq32;
5355 case ARM::VST4dWB_fixed_Asm_8: Spacing = 1; return ARM::VST4d8_UPD;
5356 case ARM::VST4dWB_fixed_Asm_16: Spacing = 1; return ARM::VST4d16_UPD;
5357 case ARM::VST4dWB_fixed_Asm_32: Spacing = 1; return ARM::VST4d32_UPD;
5358 case ARM::VST4qWB_fixed_Asm_8: Spacing = 2; return ARM::VST4q8_UPD;
5359 case ARM::VST4qWB_fixed_Asm_16: Spacing = 2; return ARM::VST4q16_UPD;
5360 case ARM::VST4qWB_fixed_Asm_32: Spacing = 2; return ARM::VST4q32_UPD;
5361 case ARM::VST4dWB_register_Asm_8: Spacing = 1; return ARM::VST4d8_UPD;
5362 case ARM::VST4dWB_register_Asm_16: Spacing = 1; return ARM::VST4d16_UPD;
5363 case ARM::VST4dWB_register_Asm_32: Spacing = 1; return ARM::VST4d32_UPD;
5364 case ARM::VST4qWB_register_Asm_8: Spacing = 2; return ARM::VST4q8_UPD;
5365 case ARM::VST4qWB_register_Asm_16: Spacing = 2; return ARM::VST4q16_UPD;
5366 case ARM::VST4qWB_register_Asm_32: Spacing = 2; return ARM::VST4q32_UPD;
5367 case ARM::VST4dAsm_8: Spacing = 1; return ARM::VST4d8;
5368 case ARM::VST4dAsm_16: Spacing = 1; return ARM::VST4d16;
5369 case ARM::VST4dAsm_32: Spacing = 1; return ARM::VST4d32;
5370 case ARM::VST4qAsm_8: Spacing = 2; return ARM::VST4q8;
5371 case ARM::VST4qAsm_16: Spacing = 2; return ARM::VST4q16;
5372 case ARM::VST4qAsm_32: Spacing = 2; return ARM::VST4q32;
5376 static unsigned getRealVLDOpcode(unsigned Opc, unsigned &Spacing) {
5378 default: llvm_unreachable("unexpected opcode!");
5380 case ARM::VLD1LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD1LNd8_UPD;
5381 case ARM::VLD1LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD1LNd16_UPD;
5382 case ARM::VLD1LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD1LNd32_UPD;
5383 case ARM::VLD1LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD1LNd8_UPD;
5384 case ARM::VLD1LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD1LNd16_UPD;
5385 case ARM::VLD1LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD1LNd32_UPD;
5386 case ARM::VLD1LNdAsm_8: Spacing = 1; return ARM::VLD1LNd8;
5387 case ARM::VLD1LNdAsm_16: Spacing = 1; return ARM::VLD1LNd16;
5388 case ARM::VLD1LNdAsm_32: Spacing = 1; return ARM::VLD1LNd32;
5391 case ARM::VLD2LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD2LNd8_UPD;
5392 case ARM::VLD2LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD2LNd16_UPD;
5393 case ARM::VLD2LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD2LNd32_UPD;
5394 case ARM::VLD2LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD2LNq16_UPD;
5395 case ARM::VLD2LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD2LNq32_UPD;
5396 case ARM::VLD2LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD2LNd8_UPD;
5397 case ARM::VLD2LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD2LNd16_UPD;
5398 case ARM::VLD2LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD2LNd32_UPD;
5399 case ARM::VLD2LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD2LNq16_UPD;
5400 case ARM::VLD2LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD2LNq32_UPD;
5401 case ARM::VLD2LNdAsm_8: Spacing = 1; return ARM::VLD2LNd8;
5402 case ARM::VLD2LNdAsm_16: Spacing = 1; return ARM::VLD2LNd16;
5403 case ARM::VLD2LNdAsm_32: Spacing = 1; return ARM::VLD2LNd32;
5404 case ARM::VLD2LNqAsm_16: Spacing = 2; return ARM::VLD2LNq16;
5405 case ARM::VLD2LNqAsm_32: Spacing = 2; return ARM::VLD2LNq32;
5408 case ARM::VLD3DUPdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3DUPd8_UPD;
5409 case ARM::VLD3DUPdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3DUPd16_UPD;
5410 case ARM::VLD3DUPdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3DUPd32_UPD;
5411 case ARM::VLD3DUPqWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3DUPq8_UPD;
5412 case ARM::VLD3DUPqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3DUPq16_UPD;
5413 case ARM::VLD3DUPqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3DUPq32_UPD;
5414 case ARM::VLD3DUPdWB_register_Asm_8: Spacing = 1; return ARM::VLD3DUPd8_UPD;
5415 case ARM::VLD3DUPdWB_register_Asm_16: Spacing = 1; return ARM::VLD3DUPd16_UPD;
5416 case ARM::VLD3DUPdWB_register_Asm_32: Spacing = 1; return ARM::VLD3DUPd32_UPD;
5417 case ARM::VLD3DUPqWB_register_Asm_8: Spacing = 2; return ARM::VLD3DUPq8_UPD;
5418 case ARM::VLD3DUPqWB_register_Asm_16: Spacing = 2; return ARM::VLD3DUPq16_UPD;
5419 case ARM::VLD3DUPqWB_register_Asm_32: Spacing = 2; return ARM::VLD3DUPq32_UPD;
5420 case ARM::VLD3DUPdAsm_8: Spacing = 1; return ARM::VLD3DUPd8;
5421 case ARM::VLD3DUPdAsm_16: Spacing = 1; return ARM::VLD3DUPd16;
5422 case ARM::VLD3DUPdAsm_32: Spacing = 1; return ARM::VLD3DUPd32;
5423 case ARM::VLD3DUPqAsm_8: Spacing = 2; return ARM::VLD3DUPq8;
5424 case ARM::VLD3DUPqAsm_16: Spacing = 2; return ARM::VLD3DUPq16;
5425 case ARM::VLD3DUPqAsm_32: Spacing = 2; return ARM::VLD3DUPq32;
5428 case ARM::VLD3LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3LNd8_UPD;
5429 case ARM::VLD3LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3LNd16_UPD;
5430 case ARM::VLD3LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3LNd32_UPD;
5431 case ARM::VLD3LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3LNq16_UPD;
5432 case ARM::VLD3LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3LNq32_UPD;
5433 case ARM::VLD3LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD3LNd8_UPD;
5434 case ARM::VLD3LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD3LNd16_UPD;
5435 case ARM::VLD3LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD3LNd32_UPD;
5436 case ARM::VLD3LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD3LNq16_UPD;
5437 case ARM::VLD3LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD3LNq32_UPD;
5438 case ARM::VLD3LNdAsm_8: Spacing = 1; return ARM::VLD3LNd8;
5439 case ARM::VLD3LNdAsm_16: Spacing = 1; return ARM::VLD3LNd16;
5440 case ARM::VLD3LNdAsm_32: Spacing = 1; return ARM::VLD3LNd32;
5441 case ARM::VLD3LNqAsm_16: Spacing = 2; return ARM::VLD3LNq16;
5442 case ARM::VLD3LNqAsm_32: Spacing = 2; return ARM::VLD3LNq32;
5445 case ARM::VLD3dWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3d8_UPD;
5446 case ARM::VLD3dWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3d16_UPD;
5447 case ARM::VLD3dWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3d32_UPD;
5448 case ARM::VLD3qWB_fixed_Asm_8: Spacing = 2; return ARM::VLD3q8_UPD;
5449 case ARM::VLD3qWB_fixed_Asm_16: Spacing = 2; return ARM::VLD3q16_UPD;
5450 case ARM::VLD3qWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3q32_UPD;
5451 case ARM::VLD3dWB_register_Asm_8: Spacing = 1; return ARM::VLD3d8_UPD;
5452 case ARM::VLD3dWB_register_Asm_16: Spacing = 1; return ARM::VLD3d16_UPD;
5453 case ARM::VLD3dWB_register_Asm_32: Spacing = 1; return ARM::VLD3d32_UPD;
5454 case ARM::VLD3qWB_register_Asm_8: Spacing = 2; return ARM::VLD3q8_UPD;
5455 case ARM::VLD3qWB_register_Asm_16: Spacing = 2; return ARM::VLD3q16_UPD;
5456 case ARM::VLD3qWB_register_Asm_32: Spacing = 2; return ARM::VLD3q32_UPD;
5457 case ARM::VLD3dAsm_8: Spacing = 1; return ARM::VLD3d8;
5458 case ARM::VLD3dAsm_16: Spacing = 1; return ARM::VLD3d16;
5459 case ARM::VLD3dAsm_32: Spacing = 1; return ARM::VLD3d32;
5460 case ARM::VLD3qAsm_8: Spacing = 2; return ARM::VLD3q8;
5461 case ARM::VLD3qAsm_16: Spacing = 2; return ARM::VLD3q16;
5462 case ARM::VLD3qAsm_32: Spacing = 2; return ARM::VLD3q32;
5465 case ARM::VLD4LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4LNd8_UPD;
5466 case ARM::VLD4LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4LNd16_UPD;
5467 case ARM::VLD4LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4LNd32_UPD;
5468 case ARM::VLD4LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4LNq16_UPD;
5469 case ARM::VLD4LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4LNq32_UPD;
5470 case ARM::VLD4LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD4LNd8_UPD;
5471 case ARM::VLD4LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD4LNd16_UPD;
5472 case ARM::VLD4LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD4LNd32_UPD;
5473 case ARM::VLD4LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD4LNq16_UPD;
5474 case ARM::VLD4LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD4LNq32_UPD;
5475 case ARM::VLD4LNdAsm_8: Spacing = 1; return ARM::VLD4LNd8;
5476 case ARM::VLD4LNdAsm_16: Spacing = 1; return ARM::VLD4LNd16;
5477 case ARM::VLD4LNdAsm_32: Spacing = 1; return ARM::VLD4LNd32;
5478 case ARM::VLD4LNqAsm_16: Spacing = 2; return ARM::VLD4LNq16;
5479 case ARM::VLD4LNqAsm_32: Spacing = 2; return ARM::VLD4LNq32;
5482 case ARM::VLD4DUPdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4DUPd8_UPD;
5483 case ARM::VLD4DUPdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4DUPd16_UPD;
5484 case ARM::VLD4DUPdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4DUPd32_UPD;
5485 case ARM::VLD4DUPqWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4DUPq8_UPD;
5486 case ARM::VLD4DUPqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4DUPq16_UPD;
5487 case ARM::VLD4DUPqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4DUPq32_UPD;
5488 case ARM::VLD4DUPdWB_register_Asm_8: Spacing = 1; return ARM::VLD4DUPd8_UPD;
5489 case ARM::VLD4DUPdWB_register_Asm_16: Spacing = 1; return ARM::VLD4DUPd16_UPD;
5490 case ARM::VLD4DUPdWB_register_Asm_32: Spacing = 1; return ARM::VLD4DUPd32_UPD;
5491 case ARM::VLD4DUPqWB_register_Asm_8: Spacing = 2; return ARM::VLD4DUPq8_UPD;
5492 case ARM::VLD4DUPqWB_register_Asm_16: Spacing = 2; return ARM::VLD4DUPq16_UPD;
5493 case ARM::VLD4DUPqWB_register_Asm_32: Spacing = 2; return ARM::VLD4DUPq32_UPD;
5494 case ARM::VLD4DUPdAsm_8: Spacing = 1; return ARM::VLD4DUPd8;
5495 case ARM::VLD4DUPdAsm_16: Spacing = 1; return ARM::VLD4DUPd16;
5496 case ARM::VLD4DUPdAsm_32: Spacing = 1; return ARM::VLD4DUPd32;
5497 case ARM::VLD4DUPqAsm_8: Spacing = 2; return ARM::VLD4DUPq8;
5498 case ARM::VLD4DUPqAsm_16: Spacing = 2; return ARM::VLD4DUPq16;
5499 case ARM::VLD4DUPqAsm_32: Spacing = 2; return ARM::VLD4DUPq32;
5502 case ARM::VLD4dWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4d8_UPD;
5503 case ARM::VLD4dWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4d16_UPD;
5504 case ARM::VLD4dWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4d32_UPD;
5505 case ARM::VLD4qWB_fixed_Asm_8: Spacing = 2; return ARM::VLD4q8_UPD;
5506 case ARM::VLD4qWB_fixed_Asm_16: Spacing = 2; return ARM::VLD4q16_UPD;
5507 case ARM::VLD4qWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4q32_UPD;
5508 case ARM::VLD4dWB_register_Asm_8: Spacing = 1; return ARM::VLD4d8_UPD;
5509 case ARM::VLD4dWB_register_Asm_16: Spacing = 1; return ARM::VLD4d16_UPD;
5510 case ARM::VLD4dWB_register_Asm_32: Spacing = 1; return ARM::VLD4d32_UPD;
5511 case ARM::VLD4qWB_register_Asm_8: Spacing = 2; return ARM::VLD4q8_UPD;
5512 case ARM::VLD4qWB_register_Asm_16: Spacing = 2; return ARM::VLD4q16_UPD;
5513 case ARM::VLD4qWB_register_Asm_32: Spacing = 2; return ARM::VLD4q32_UPD;
5514 case ARM::VLD4dAsm_8: Spacing = 1; return ARM::VLD4d8;
5515 case ARM::VLD4dAsm_16: Spacing = 1; return ARM::VLD4d16;
5516 case ARM::VLD4dAsm_32: Spacing = 1; return ARM::VLD4d32;
5517 case ARM::VLD4qAsm_8: Spacing = 2; return ARM::VLD4q8;
5518 case ARM::VLD4qAsm_16: Spacing = 2; return ARM::VLD4q16;
5519 case ARM::VLD4qAsm_32: Spacing = 2; return ARM::VLD4q32;
5524 processInstruction(MCInst &Inst,
5525 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
5526 switch (Inst.getOpcode()) {
5527 // Aliases for alternate PC+imm syntax of LDR instructions.
5528 case ARM::t2LDRpcrel:
5529 Inst.setOpcode(ARM::t2LDRpci);
5531 case ARM::t2LDRBpcrel:
5532 Inst.setOpcode(ARM::t2LDRBpci);
5534 case ARM::t2LDRHpcrel:
5535 Inst.setOpcode(ARM::t2LDRHpci);
5537 case ARM::t2LDRSBpcrel:
5538 Inst.setOpcode(ARM::t2LDRSBpci);
5540 case ARM::t2LDRSHpcrel:
5541 Inst.setOpcode(ARM::t2LDRSHpci);
5543 // Handle NEON VST complex aliases.
5544 case ARM::VST1LNdWB_register_Asm_8:
5545 case ARM::VST1LNdWB_register_Asm_16:
5546 case ARM::VST1LNdWB_register_Asm_32: {
5548 // Shuffle the operands around so the lane index operand is in the
5551 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5552 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5553 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5554 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5555 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5556 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5557 TmpInst.addOperand(Inst.getOperand(1)); // lane
5558 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5559 TmpInst.addOperand(Inst.getOperand(6));
5564 case ARM::VST2LNdWB_register_Asm_8:
5565 case ARM::VST2LNdWB_register_Asm_16:
5566 case ARM::VST2LNdWB_register_Asm_32:
5567 case ARM::VST2LNqWB_register_Asm_16:
5568 case ARM::VST2LNqWB_register_Asm_32: {
5570 // Shuffle the operands around so the lane index operand is in the
5573 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5574 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5575 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5576 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5577 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5578 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5579 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5581 TmpInst.addOperand(Inst.getOperand(1)); // lane
5582 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5583 TmpInst.addOperand(Inst.getOperand(6));
5588 case ARM::VST3LNdWB_register_Asm_8:
5589 case ARM::VST3LNdWB_register_Asm_16:
5590 case ARM::VST3LNdWB_register_Asm_32:
5591 case ARM::VST3LNqWB_register_Asm_16:
5592 case ARM::VST3LNqWB_register_Asm_32: {
5594 // Shuffle the operands around so the lane index operand is in the
5597 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5598 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5599 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5600 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5601 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5602 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5603 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5605 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5607 TmpInst.addOperand(Inst.getOperand(1)); // lane
5608 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5609 TmpInst.addOperand(Inst.getOperand(6));
5614 case ARM::VST4LNdWB_register_Asm_8:
5615 case ARM::VST4LNdWB_register_Asm_16:
5616 case ARM::VST4LNdWB_register_Asm_32:
5617 case ARM::VST4LNqWB_register_Asm_16:
5618 case ARM::VST4LNqWB_register_Asm_32: {
5620 // Shuffle the operands around so the lane index operand is in the
5623 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5624 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5625 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5626 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5627 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5628 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5629 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5631 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5633 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5635 TmpInst.addOperand(Inst.getOperand(1)); // lane
5636 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5637 TmpInst.addOperand(Inst.getOperand(6));
5642 case ARM::VST1LNdWB_fixed_Asm_8:
5643 case ARM::VST1LNdWB_fixed_Asm_16:
5644 case ARM::VST1LNdWB_fixed_Asm_32: {
5646 // Shuffle the operands around so the lane index operand is in the
5649 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5650 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5651 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5652 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5653 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
5654 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5655 TmpInst.addOperand(Inst.getOperand(1)); // lane
5656 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5657 TmpInst.addOperand(Inst.getOperand(5));
5662 case ARM::VST2LNdWB_fixed_Asm_8:
5663 case ARM::VST2LNdWB_fixed_Asm_16:
5664 case ARM::VST2LNdWB_fixed_Asm_32:
5665 case ARM::VST2LNqWB_fixed_Asm_16:
5666 case ARM::VST2LNqWB_fixed_Asm_32: {
5668 // Shuffle the operands around so the lane index operand is in the
5671 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5672 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5673 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5674 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5675 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
5676 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5677 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5679 TmpInst.addOperand(Inst.getOperand(1)); // lane
5680 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5681 TmpInst.addOperand(Inst.getOperand(5));
5686 case ARM::VST3LNdWB_fixed_Asm_8:
5687 case ARM::VST3LNdWB_fixed_Asm_16:
5688 case ARM::VST3LNdWB_fixed_Asm_32:
5689 case ARM::VST3LNqWB_fixed_Asm_16:
5690 case ARM::VST3LNqWB_fixed_Asm_32: {
5692 // Shuffle the operands around so the lane index operand is in the
5695 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5696 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5697 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5698 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5699 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
5700 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5701 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5703 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5705 TmpInst.addOperand(Inst.getOperand(1)); // lane
5706 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5707 TmpInst.addOperand(Inst.getOperand(5));
5712 case ARM::VST4LNdWB_fixed_Asm_8:
5713 case ARM::VST4LNdWB_fixed_Asm_16:
5714 case ARM::VST4LNdWB_fixed_Asm_32:
5715 case ARM::VST4LNqWB_fixed_Asm_16:
5716 case ARM::VST4LNqWB_fixed_Asm_32: {
5718 // Shuffle the operands around so the lane index operand is in the
5721 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5722 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5723 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5724 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5725 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
5726 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5727 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5729 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5731 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5733 TmpInst.addOperand(Inst.getOperand(1)); // lane
5734 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5735 TmpInst.addOperand(Inst.getOperand(5));
5740 case ARM::VST1LNdAsm_8:
5741 case ARM::VST1LNdAsm_16:
5742 case ARM::VST1LNdAsm_32: {
5744 // Shuffle the operands around so the lane index operand is in the
5747 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5748 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5749 TmpInst.addOperand(Inst.getOperand(3)); // alignment
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::VST2LNdAsm_8:
5759 case ARM::VST2LNdAsm_16:
5760 case ARM::VST2LNdAsm_32:
5761 case ARM::VST2LNqAsm_16:
5762 case ARM::VST2LNqAsm_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
5769 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5770 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5771 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5773 TmpInst.addOperand(Inst.getOperand(1)); // lane
5774 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5775 TmpInst.addOperand(Inst.getOperand(5));
5780 case ARM::VST3LNdAsm_8:
5781 case ARM::VST3LNdAsm_16:
5782 case ARM::VST3LNdAsm_32:
5783 case ARM::VST3LNqAsm_16:
5784 case ARM::VST3LNqAsm_32: {
5786 // Shuffle the operands around so the lane index operand is in the
5789 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5790 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5791 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5792 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5793 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5795 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5797 TmpInst.addOperand(Inst.getOperand(1)); // lane
5798 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5799 TmpInst.addOperand(Inst.getOperand(5));
5804 case ARM::VST4LNdAsm_8:
5805 case ARM::VST4LNdAsm_16:
5806 case ARM::VST4LNdAsm_32:
5807 case ARM::VST4LNqAsm_16:
5808 case ARM::VST4LNqAsm_32: {
5810 // Shuffle the operands around so the lane index operand is in the
5813 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5814 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5815 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5816 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5817 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5819 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5821 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5823 TmpInst.addOperand(Inst.getOperand(1)); // lane
5824 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5825 TmpInst.addOperand(Inst.getOperand(5));
5830 // Handle NEON VLD complex aliases.
5831 case ARM::VLD1LNdWB_register_Asm_8:
5832 case ARM::VLD1LNdWB_register_Asm_16:
5833 case ARM::VLD1LNdWB_register_Asm_32: {
5835 // Shuffle the operands around so the lane index operand is in the
5838 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
5839 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5840 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5841 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5842 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5843 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5844 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
5845 TmpInst.addOperand(Inst.getOperand(1)); // lane
5846 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5847 TmpInst.addOperand(Inst.getOperand(6));
5852 case ARM::VLD2LNdWB_register_Asm_8:
5853 case ARM::VLD2LNdWB_register_Asm_16:
5854 case ARM::VLD2LNdWB_register_Asm_32:
5855 case ARM::VLD2LNqWB_register_Asm_16:
5856 case ARM::VLD2LNqWB_register_Asm_32: {
5858 // Shuffle the operands around so the lane index operand is in the
5861 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
5862 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5863 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5865 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5866 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5867 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5868 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5869 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
5870 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5872 TmpInst.addOperand(Inst.getOperand(1)); // lane
5873 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5874 TmpInst.addOperand(Inst.getOperand(6));
5879 case ARM::VLD3LNdWB_register_Asm_8:
5880 case ARM::VLD3LNdWB_register_Asm_16:
5881 case ARM::VLD3LNdWB_register_Asm_32:
5882 case ARM::VLD3LNqWB_register_Asm_16:
5883 case ARM::VLD3LNqWB_register_Asm_32: {
5885 // Shuffle the operands around so the lane index operand is in the
5888 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
5889 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5890 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5892 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5894 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5895 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5896 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5897 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5898 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
5899 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5901 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5903 TmpInst.addOperand(Inst.getOperand(1)); // lane
5904 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5905 TmpInst.addOperand(Inst.getOperand(6));
5910 case ARM::VLD4LNdWB_register_Asm_8:
5911 case ARM::VLD4LNdWB_register_Asm_16:
5912 case ARM::VLD4LNdWB_register_Asm_32:
5913 case ARM::VLD4LNqWB_register_Asm_16:
5914 case ARM::VLD4LNqWB_register_Asm_32: {
5916 // Shuffle the operands around so the lane index operand is in the
5919 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
5920 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5921 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5923 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5925 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5927 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5928 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5929 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5930 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5931 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
5932 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5934 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5936 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5938 TmpInst.addOperand(Inst.getOperand(1)); // lane
5939 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5940 TmpInst.addOperand(Inst.getOperand(6));
5945 case ARM::VLD1LNdWB_fixed_Asm_8:
5946 case ARM::VLD1LNdWB_fixed_Asm_16:
5947 case ARM::VLD1LNdWB_fixed_Asm_32: {
5949 // Shuffle the operands around so the lane index operand is in the
5952 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
5953 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5954 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5955 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5956 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5957 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
5958 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
5959 TmpInst.addOperand(Inst.getOperand(1)); // lane
5960 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5961 TmpInst.addOperand(Inst.getOperand(5));
5966 case ARM::VLD2LNdWB_fixed_Asm_8:
5967 case ARM::VLD2LNdWB_fixed_Asm_16:
5968 case ARM::VLD2LNdWB_fixed_Asm_32:
5969 case ARM::VLD2LNqWB_fixed_Asm_16:
5970 case ARM::VLD2LNqWB_fixed_Asm_32: {
5972 // Shuffle the operands around so the lane index operand is in the
5975 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
5976 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5977 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5979 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5980 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5981 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5982 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
5983 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
5984 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5986 TmpInst.addOperand(Inst.getOperand(1)); // lane
5987 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5988 TmpInst.addOperand(Inst.getOperand(5));
5993 case ARM::VLD3LNdWB_fixed_Asm_8:
5994 case ARM::VLD3LNdWB_fixed_Asm_16:
5995 case ARM::VLD3LNdWB_fixed_Asm_32:
5996 case ARM::VLD3LNqWB_fixed_Asm_16:
5997 case ARM::VLD3LNqWB_fixed_Asm_32: {
5999 // Shuffle the operands around so the lane index operand is in the
6002 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6003 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6004 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6006 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6008 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6009 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6010 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6011 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6012 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6013 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6015 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6017 TmpInst.addOperand(Inst.getOperand(1)); // lane
6018 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6019 TmpInst.addOperand(Inst.getOperand(5));
6024 case ARM::VLD4LNdWB_fixed_Asm_8:
6025 case ARM::VLD4LNdWB_fixed_Asm_16:
6026 case ARM::VLD4LNdWB_fixed_Asm_32:
6027 case ARM::VLD4LNqWB_fixed_Asm_16:
6028 case ARM::VLD4LNqWB_fixed_Asm_32: {
6030 // Shuffle the operands around so the lane index operand is in the
6033 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6034 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6035 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6037 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6039 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6041 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6042 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6043 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6044 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6045 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6046 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6048 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6050 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6052 TmpInst.addOperand(Inst.getOperand(1)); // lane
6053 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6054 TmpInst.addOperand(Inst.getOperand(5));
6059 case ARM::VLD1LNdAsm_8:
6060 case ARM::VLD1LNdAsm_16:
6061 case ARM::VLD1LNdAsm_32: {
6063 // Shuffle the operands around so the lane index operand is in the
6066 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6067 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6068 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6069 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6070 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6071 TmpInst.addOperand(Inst.getOperand(1)); // lane
6072 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6073 TmpInst.addOperand(Inst.getOperand(5));
6078 case ARM::VLD2LNdAsm_8:
6079 case ARM::VLD2LNdAsm_16:
6080 case ARM::VLD2LNdAsm_32:
6081 case ARM::VLD2LNqAsm_16:
6082 case ARM::VLD2LNqAsm_32: {
6084 // Shuffle the operands around so the lane index operand is in the
6087 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6088 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6089 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6091 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6092 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6093 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6094 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6096 TmpInst.addOperand(Inst.getOperand(1)); // lane
6097 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6098 TmpInst.addOperand(Inst.getOperand(5));
6103 case ARM::VLD3LNdAsm_8:
6104 case ARM::VLD3LNdAsm_16:
6105 case ARM::VLD3LNdAsm_32:
6106 case ARM::VLD3LNqAsm_16:
6107 case ARM::VLD3LNqAsm_32: {
6109 // Shuffle the operands around so the lane index operand is in the
6112 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6113 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6114 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6116 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6118 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6119 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6120 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6121 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6123 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6125 TmpInst.addOperand(Inst.getOperand(1)); // lane
6126 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6127 TmpInst.addOperand(Inst.getOperand(5));
6132 case ARM::VLD4LNdAsm_8:
6133 case ARM::VLD4LNdAsm_16:
6134 case ARM::VLD4LNdAsm_32:
6135 case ARM::VLD4LNqAsm_16:
6136 case ARM::VLD4LNqAsm_32: {
6138 // Shuffle the operands around so the lane index operand is in the
6141 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6142 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6143 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6145 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6147 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6149 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6150 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6151 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6152 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6154 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6156 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6158 TmpInst.addOperand(Inst.getOperand(1)); // lane
6159 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6160 TmpInst.addOperand(Inst.getOperand(5));
6165 // VLD3DUP single 3-element structure to all lanes instructions.
6166 case ARM::VLD3DUPdAsm_8:
6167 case ARM::VLD3DUPdAsm_16:
6168 case ARM::VLD3DUPdAsm_32:
6169 case ARM::VLD3DUPqAsm_8:
6170 case ARM::VLD3DUPqAsm_16:
6171 case ARM::VLD3DUPqAsm_32: {
6174 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6175 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6176 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6178 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6180 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6181 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6182 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6183 TmpInst.addOperand(Inst.getOperand(4));
6188 case ARM::VLD3DUPdWB_fixed_Asm_8:
6189 case ARM::VLD3DUPdWB_fixed_Asm_16:
6190 case ARM::VLD3DUPdWB_fixed_Asm_32:
6191 case ARM::VLD3DUPqWB_fixed_Asm_8:
6192 case ARM::VLD3DUPqWB_fixed_Asm_16:
6193 case ARM::VLD3DUPqWB_fixed_Asm_32: {
6196 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6197 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6198 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6200 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6202 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6203 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6204 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6205 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6206 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6207 TmpInst.addOperand(Inst.getOperand(4));
6212 case ARM::VLD3DUPdWB_register_Asm_8:
6213 case ARM::VLD3DUPdWB_register_Asm_16:
6214 case ARM::VLD3DUPdWB_register_Asm_32:
6215 case ARM::VLD3DUPqWB_register_Asm_8:
6216 case ARM::VLD3DUPqWB_register_Asm_16:
6217 case ARM::VLD3DUPqWB_register_Asm_32: {
6220 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6221 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6222 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6224 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6226 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6227 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6228 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6229 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6230 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6231 TmpInst.addOperand(Inst.getOperand(5));
6236 // VLD3 multiple 3-element structure instructions.
6237 case ARM::VLD3dAsm_8:
6238 case ARM::VLD3dAsm_16:
6239 case ARM::VLD3dAsm_32:
6240 case ARM::VLD3qAsm_8:
6241 case ARM::VLD3qAsm_16:
6242 case ARM::VLD3qAsm_32: {
6245 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6246 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6247 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6249 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6251 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6252 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6253 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6254 TmpInst.addOperand(Inst.getOperand(4));
6259 case ARM::VLD3dWB_fixed_Asm_8:
6260 case ARM::VLD3dWB_fixed_Asm_16:
6261 case ARM::VLD3dWB_fixed_Asm_32:
6262 case ARM::VLD3qWB_fixed_Asm_8:
6263 case ARM::VLD3qWB_fixed_Asm_16:
6264 case ARM::VLD3qWB_fixed_Asm_32: {
6267 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6268 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6269 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6271 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6273 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6274 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6275 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6276 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6277 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6278 TmpInst.addOperand(Inst.getOperand(4));
6283 case ARM::VLD3dWB_register_Asm_8:
6284 case ARM::VLD3dWB_register_Asm_16:
6285 case ARM::VLD3dWB_register_Asm_32:
6286 case ARM::VLD3qWB_register_Asm_8:
6287 case ARM::VLD3qWB_register_Asm_16:
6288 case ARM::VLD3qWB_register_Asm_32: {
6291 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6292 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6293 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6295 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6297 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6298 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6299 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6300 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6301 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6302 TmpInst.addOperand(Inst.getOperand(5));
6307 // VLD4DUP single 3-element structure to all lanes instructions.
6308 case ARM::VLD4DUPdAsm_8:
6309 case ARM::VLD4DUPdAsm_16:
6310 case ARM::VLD4DUPdAsm_32:
6311 case ARM::VLD4DUPqAsm_8:
6312 case ARM::VLD4DUPqAsm_16:
6313 case ARM::VLD4DUPqAsm_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(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6324 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6325 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6326 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6327 TmpInst.addOperand(Inst.getOperand(4));
6332 case ARM::VLD4DUPdWB_fixed_Asm_8:
6333 case ARM::VLD4DUPdWB_fixed_Asm_16:
6334 case ARM::VLD4DUPdWB_fixed_Asm_32:
6335 case ARM::VLD4DUPqWB_fixed_Asm_8:
6336 case ARM::VLD4DUPqWB_fixed_Asm_16:
6337 case ARM::VLD4DUPqWB_fixed_Asm_32: {
6340 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6341 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6342 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6344 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6346 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6348 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6349 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6350 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6351 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6352 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6353 TmpInst.addOperand(Inst.getOperand(4));
6358 case ARM::VLD4DUPdWB_register_Asm_8:
6359 case ARM::VLD4DUPdWB_register_Asm_16:
6360 case ARM::VLD4DUPdWB_register_Asm_32:
6361 case ARM::VLD4DUPqWB_register_Asm_8:
6362 case ARM::VLD4DUPqWB_register_Asm_16:
6363 case ARM::VLD4DUPqWB_register_Asm_32: {
6366 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6367 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6368 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6370 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6372 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6374 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6375 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6376 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6377 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6378 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6379 TmpInst.addOperand(Inst.getOperand(5));
6384 // VLD4 multiple 4-element structure instructions.
6385 case ARM::VLD4dAsm_8:
6386 case ARM::VLD4dAsm_16:
6387 case ARM::VLD4dAsm_32:
6388 case ARM::VLD4qAsm_8:
6389 case ARM::VLD4qAsm_16:
6390 case ARM::VLD4qAsm_32: {
6393 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6394 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6395 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6397 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6399 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6401 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6402 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6403 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6404 TmpInst.addOperand(Inst.getOperand(4));
6409 case ARM::VLD4dWB_fixed_Asm_8:
6410 case ARM::VLD4dWB_fixed_Asm_16:
6411 case ARM::VLD4dWB_fixed_Asm_32:
6412 case ARM::VLD4qWB_fixed_Asm_8:
6413 case ARM::VLD4qWB_fixed_Asm_16:
6414 case ARM::VLD4qWB_fixed_Asm_32: {
6417 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6418 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6419 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6421 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6423 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6425 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6426 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6427 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6428 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6429 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6430 TmpInst.addOperand(Inst.getOperand(4));
6435 case ARM::VLD4dWB_register_Asm_8:
6436 case ARM::VLD4dWB_register_Asm_16:
6437 case ARM::VLD4dWB_register_Asm_32:
6438 case ARM::VLD4qWB_register_Asm_8:
6439 case ARM::VLD4qWB_register_Asm_16:
6440 case ARM::VLD4qWB_register_Asm_32: {
6443 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6444 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6445 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6447 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6449 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6451 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6452 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6453 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6454 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6455 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6456 TmpInst.addOperand(Inst.getOperand(5));
6461 // VST3 multiple 3-element structure instructions.
6462 case ARM::VST3dAsm_8:
6463 case ARM::VST3dAsm_16:
6464 case ARM::VST3dAsm_32:
6465 case ARM::VST3qAsm_8:
6466 case ARM::VST3qAsm_16:
6467 case ARM::VST3qAsm_32: {
6470 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6471 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6472 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6473 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6474 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6476 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6478 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6479 TmpInst.addOperand(Inst.getOperand(4));
6484 case ARM::VST3dWB_fixed_Asm_8:
6485 case ARM::VST3dWB_fixed_Asm_16:
6486 case ARM::VST3dWB_fixed_Asm_32:
6487 case ARM::VST3qWB_fixed_Asm_8:
6488 case ARM::VST3qWB_fixed_Asm_16:
6489 case ARM::VST3qWB_fixed_Asm_32: {
6492 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6493 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6494 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6495 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6496 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6497 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6498 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6500 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6502 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6503 TmpInst.addOperand(Inst.getOperand(4));
6508 case ARM::VST3dWB_register_Asm_8:
6509 case ARM::VST3dWB_register_Asm_16:
6510 case ARM::VST3dWB_register_Asm_32:
6511 case ARM::VST3qWB_register_Asm_8:
6512 case ARM::VST3qWB_register_Asm_16:
6513 case ARM::VST3qWB_register_Asm_32: {
6516 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6517 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6518 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6519 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6520 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6521 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6522 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6524 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6526 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6527 TmpInst.addOperand(Inst.getOperand(5));
6532 // VST4 multiple 3-element structure instructions.
6533 case ARM::VST4dAsm_8:
6534 case ARM::VST4dAsm_16:
6535 case ARM::VST4dAsm_32:
6536 case ARM::VST4qAsm_8:
6537 case ARM::VST4qAsm_16:
6538 case ARM::VST4qAsm_32: {
6541 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6542 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6543 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6544 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6545 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6547 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6549 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6551 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6552 TmpInst.addOperand(Inst.getOperand(4));
6557 case ARM::VST4dWB_fixed_Asm_8:
6558 case ARM::VST4dWB_fixed_Asm_16:
6559 case ARM::VST4dWB_fixed_Asm_32:
6560 case ARM::VST4qWB_fixed_Asm_8:
6561 case ARM::VST4qWB_fixed_Asm_16:
6562 case ARM::VST4qWB_fixed_Asm_32: {
6565 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6566 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6567 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6568 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6569 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6570 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6571 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6573 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6575 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6577 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6578 TmpInst.addOperand(Inst.getOperand(4));
6583 case ARM::VST4dWB_register_Asm_8:
6584 case ARM::VST4dWB_register_Asm_16:
6585 case ARM::VST4dWB_register_Asm_32:
6586 case ARM::VST4qWB_register_Asm_8:
6587 case ARM::VST4qWB_register_Asm_16:
6588 case ARM::VST4qWB_register_Asm_32: {
6591 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6592 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6593 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6594 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6595 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6596 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6597 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6599 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6601 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6603 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6604 TmpInst.addOperand(Inst.getOperand(5));
6609 // Handle the Thumb2 mode MOV complex aliases.
6611 case ARM::t2MOVSsr: {
6612 // Which instruction to expand to depends on the CCOut operand and
6613 // whether we're in an IT block if the register operands are low
6615 bool isNarrow = false;
6616 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
6617 isARMLowRegister(Inst.getOperand(1).getReg()) &&
6618 isARMLowRegister(Inst.getOperand(2).getReg()) &&
6619 Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
6620 inITBlock() == (Inst.getOpcode() == ARM::t2MOVsr))
6624 switch(ARM_AM::getSORegShOp(Inst.getOperand(3).getImm())) {
6625 default: llvm_unreachable("unexpected opcode!");
6626 case ARM_AM::asr: newOpc = isNarrow ? ARM::tASRrr : ARM::t2ASRrr; break;
6627 case ARM_AM::lsr: newOpc = isNarrow ? ARM::tLSRrr : ARM::t2LSRrr; break;
6628 case ARM_AM::lsl: newOpc = isNarrow ? ARM::tLSLrr : ARM::t2LSLrr; break;
6629 case ARM_AM::ror: newOpc = isNarrow ? ARM::tROR : ARM::t2RORrr; break;
6631 TmpInst.setOpcode(newOpc);
6632 TmpInst.addOperand(Inst.getOperand(0)); // Rd
6634 TmpInst.addOperand(MCOperand::CreateReg(
6635 Inst.getOpcode() == ARM::t2MOVSsr ? ARM::CPSR : 0));
6636 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6637 TmpInst.addOperand(Inst.getOperand(2)); // Rm
6638 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6639 TmpInst.addOperand(Inst.getOperand(5));
6641 TmpInst.addOperand(MCOperand::CreateReg(
6642 Inst.getOpcode() == ARM::t2MOVSsr ? ARM::CPSR : 0));
6647 case ARM::t2MOVSsi: {
6648 // Which instruction to expand to depends on the CCOut operand and
6649 // whether we're in an IT block if the register operands are low
6651 bool isNarrow = false;
6652 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
6653 isARMLowRegister(Inst.getOperand(1).getReg()) &&
6654 inITBlock() == (Inst.getOpcode() == ARM::t2MOVsi))
6658 switch(ARM_AM::getSORegShOp(Inst.getOperand(2).getImm())) {
6659 default: llvm_unreachable("unexpected opcode!");
6660 case ARM_AM::asr: newOpc = isNarrow ? ARM::tASRri : ARM::t2ASRri; break;
6661 case ARM_AM::lsr: newOpc = isNarrow ? ARM::tLSRri : ARM::t2LSRri; break;
6662 case ARM_AM::lsl: newOpc = isNarrow ? ARM::tLSLri : ARM::t2LSLri; break;
6663 case ARM_AM::ror: newOpc = ARM::t2RORri; isNarrow = false; break;
6664 case ARM_AM::rrx: isNarrow = false; newOpc = ARM::t2RRX; break;
6666 unsigned Ammount = ARM_AM::getSORegOffset(Inst.getOperand(2).getImm());
6667 if (Ammount == 32) Ammount = 0;
6668 TmpInst.setOpcode(newOpc);
6669 TmpInst.addOperand(Inst.getOperand(0)); // Rd
6671 TmpInst.addOperand(MCOperand::CreateReg(
6672 Inst.getOpcode() == ARM::t2MOVSsi ? ARM::CPSR : 0));
6673 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6674 if (newOpc != ARM::t2RRX)
6675 TmpInst.addOperand(MCOperand::CreateImm(Ammount));
6676 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6677 TmpInst.addOperand(Inst.getOperand(4));
6679 TmpInst.addOperand(MCOperand::CreateReg(
6680 Inst.getOpcode() == ARM::t2MOVSsi ? ARM::CPSR : 0));
6684 // Handle the ARM mode MOV complex aliases.
6689 ARM_AM::ShiftOpc ShiftTy;
6690 switch(Inst.getOpcode()) {
6691 default: llvm_unreachable("unexpected opcode!");
6692 case ARM::ASRr: ShiftTy = ARM_AM::asr; break;
6693 case ARM::LSRr: ShiftTy = ARM_AM::lsr; break;
6694 case ARM::LSLr: ShiftTy = ARM_AM::lsl; break;
6695 case ARM::RORr: ShiftTy = ARM_AM::ror; break;
6697 unsigned Shifter = ARM_AM::getSORegOpc(ShiftTy, 0);
6699 TmpInst.setOpcode(ARM::MOVsr);
6700 TmpInst.addOperand(Inst.getOperand(0)); // Rd
6701 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6702 TmpInst.addOperand(Inst.getOperand(2)); // Rm
6703 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
6704 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6705 TmpInst.addOperand(Inst.getOperand(4));
6706 TmpInst.addOperand(Inst.getOperand(5)); // cc_out
6714 ARM_AM::ShiftOpc ShiftTy;
6715 switch(Inst.getOpcode()) {
6716 default: llvm_unreachable("unexpected opcode!");
6717 case ARM::ASRi: ShiftTy = ARM_AM::asr; break;
6718 case ARM::LSRi: ShiftTy = ARM_AM::lsr; break;
6719 case ARM::LSLi: ShiftTy = ARM_AM::lsl; break;
6720 case ARM::RORi: ShiftTy = ARM_AM::ror; break;
6722 // A shift by zero is a plain MOVr, not a MOVsi.
6723 unsigned Amt = Inst.getOperand(2).getImm();
6724 unsigned Opc = Amt == 0 ? ARM::MOVr : ARM::MOVsi;
6725 unsigned Shifter = ARM_AM::getSORegOpc(ShiftTy, Amt);
6727 TmpInst.setOpcode(Opc);
6728 TmpInst.addOperand(Inst.getOperand(0)); // Rd
6729 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6730 if (Opc == ARM::MOVsi)
6731 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
6732 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6733 TmpInst.addOperand(Inst.getOperand(4));
6734 TmpInst.addOperand(Inst.getOperand(5)); // cc_out
6739 unsigned Shifter = ARM_AM::getSORegOpc(ARM_AM::rrx, 0);
6741 TmpInst.setOpcode(ARM::MOVsi);
6742 TmpInst.addOperand(Inst.getOperand(0)); // Rd
6743 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6744 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
6745 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
6746 TmpInst.addOperand(Inst.getOperand(3));
6747 TmpInst.addOperand(Inst.getOperand(4)); // cc_out
6751 case ARM::t2LDMIA_UPD: {
6752 // If this is a load of a single register, then we should use
6753 // a post-indexed LDR instruction instead, per the ARM ARM.
6754 if (Inst.getNumOperands() != 5)
6757 TmpInst.setOpcode(ARM::t2LDR_POST);
6758 TmpInst.addOperand(Inst.getOperand(4)); // Rt
6759 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
6760 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6761 TmpInst.addOperand(MCOperand::CreateImm(4));
6762 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
6763 TmpInst.addOperand(Inst.getOperand(3));
6767 case ARM::t2STMDB_UPD: {
6768 // If this is a store of a single register, then we should use
6769 // a pre-indexed STR instruction instead, per the ARM ARM.
6770 if (Inst.getNumOperands() != 5)
6773 TmpInst.setOpcode(ARM::t2STR_PRE);
6774 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
6775 TmpInst.addOperand(Inst.getOperand(4)); // Rt
6776 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6777 TmpInst.addOperand(MCOperand::CreateImm(-4));
6778 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
6779 TmpInst.addOperand(Inst.getOperand(3));
6783 case ARM::LDMIA_UPD:
6784 // If this is a load of a single register via a 'pop', then we should use
6785 // a post-indexed LDR instruction instead, per the ARM ARM.
6786 if (static_cast<ARMOperand*>(Operands[0])->getToken() == "pop" &&
6787 Inst.getNumOperands() == 5) {
6789 TmpInst.setOpcode(ARM::LDR_POST_IMM);
6790 TmpInst.addOperand(Inst.getOperand(4)); // Rt
6791 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
6792 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6793 TmpInst.addOperand(MCOperand::CreateReg(0)); // am2offset
6794 TmpInst.addOperand(MCOperand::CreateImm(4));
6795 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
6796 TmpInst.addOperand(Inst.getOperand(3));
6801 case ARM::STMDB_UPD:
6802 // If this is a store of a single register via a 'push', then we should use
6803 // a pre-indexed STR instruction instead, per the ARM ARM.
6804 if (static_cast<ARMOperand*>(Operands[0])->getToken() == "push" &&
6805 Inst.getNumOperands() == 5) {
6807 TmpInst.setOpcode(ARM::STR_PRE_IMM);
6808 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
6809 TmpInst.addOperand(Inst.getOperand(4)); // Rt
6810 TmpInst.addOperand(Inst.getOperand(1)); // addrmode_imm12
6811 TmpInst.addOperand(MCOperand::CreateImm(-4));
6812 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
6813 TmpInst.addOperand(Inst.getOperand(3));
6817 case ARM::t2ADDri12:
6818 // If the immediate fits for encoding T3 (t2ADDri) and the generic "add"
6819 // mnemonic was used (not "addw"), encoding T3 is preferred.
6820 if (static_cast<ARMOperand*>(Operands[0])->getToken() != "add" ||
6821 ARM_AM::getT2SOImmVal(Inst.getOperand(2).getImm()) == -1)
6823 Inst.setOpcode(ARM::t2ADDri);
6824 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
6826 case ARM::t2SUBri12:
6827 // If the immediate fits for encoding T3 (t2SUBri) and the generic "sub"
6828 // mnemonic was used (not "subw"), encoding T3 is preferred.
6829 if (static_cast<ARMOperand*>(Operands[0])->getToken() != "sub" ||
6830 ARM_AM::getT2SOImmVal(Inst.getOperand(2).getImm()) == -1)
6832 Inst.setOpcode(ARM::t2SUBri);
6833 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
6836 // If the immediate is in the range 0-7, we want tADDi3 iff Rd was
6837 // explicitly specified. From the ARM ARM: "Encoding T1 is preferred
6838 // to encoding T2 if <Rd> is specified and encoding T2 is preferred
6839 // to encoding T1 if <Rd> is omitted."
6840 if ((unsigned)Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
6841 Inst.setOpcode(ARM::tADDi3);
6846 // If the immediate is in the range 0-7, we want tADDi3 iff Rd was
6847 // explicitly specified. From the ARM ARM: "Encoding T1 is preferred
6848 // to encoding T2 if <Rd> is specified and encoding T2 is preferred
6849 // to encoding T1 if <Rd> is omitted."
6850 if ((unsigned)Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
6851 Inst.setOpcode(ARM::tSUBi3);
6856 case ARM::t2SUBri: {
6857 // If the destination and first source operand are the same, and
6858 // the flags are compatible with the current IT status, use encoding T2
6859 // instead of T3. For compatibility with the system 'as'. Make sure the
6860 // wide encoding wasn't explicit.
6861 if (Inst.getOperand(0).getReg() != Inst.getOperand(1).getReg() ||
6862 !isARMLowRegister(Inst.getOperand(0).getReg()) ||
6863 (unsigned)Inst.getOperand(2).getImm() > 255 ||
6864 ((!inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR) ||
6865 (inITBlock() && Inst.getOperand(5).getReg() != 0)) ||
6866 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
6867 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w"))
6870 TmpInst.setOpcode(Inst.getOpcode() == ARM::t2ADDri ?
6871 ARM::tADDi8 : ARM::tSUBi8);
6872 TmpInst.addOperand(Inst.getOperand(0));
6873 TmpInst.addOperand(Inst.getOperand(5));
6874 TmpInst.addOperand(Inst.getOperand(0));
6875 TmpInst.addOperand(Inst.getOperand(2));
6876 TmpInst.addOperand(Inst.getOperand(3));
6877 TmpInst.addOperand(Inst.getOperand(4));
6881 case ARM::t2ADDrr: {
6882 // If the destination and first source operand are the same, and
6883 // there's no setting of the flags, use encoding T2 instead of T3.
6884 // Note that this is only for ADD, not SUB. This mirrors the system
6885 // 'as' behaviour. Make sure the wide encoding wasn't explicit.
6886 if (Inst.getOperand(0).getReg() != Inst.getOperand(1).getReg() ||
6887 Inst.getOperand(5).getReg() != 0 ||
6888 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
6889 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w"))
6892 TmpInst.setOpcode(ARM::tADDhirr);
6893 TmpInst.addOperand(Inst.getOperand(0));
6894 TmpInst.addOperand(Inst.getOperand(0));
6895 TmpInst.addOperand(Inst.getOperand(2));
6896 TmpInst.addOperand(Inst.getOperand(3));
6897 TmpInst.addOperand(Inst.getOperand(4));
6902 // A Thumb conditional branch outside of an IT block is a tBcc.
6903 if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()) {
6904 Inst.setOpcode(ARM::tBcc);
6909 // A Thumb2 conditional branch outside of an IT block is a t2Bcc.
6910 if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()){
6911 Inst.setOpcode(ARM::t2Bcc);
6916 // If the conditional is AL or we're in an IT block, we really want t2B.
6917 if (Inst.getOperand(1).getImm() == ARMCC::AL || inITBlock()) {
6918 Inst.setOpcode(ARM::t2B);
6923 // If the conditional is AL, we really want tB.
6924 if (Inst.getOperand(1).getImm() == ARMCC::AL) {
6925 Inst.setOpcode(ARM::tB);
6930 // If the register list contains any high registers, or if the writeback
6931 // doesn't match what tLDMIA can do, we need to use the 32-bit encoding
6932 // instead if we're in Thumb2. Otherwise, this should have generated
6933 // an error in validateInstruction().
6934 unsigned Rn = Inst.getOperand(0).getReg();
6935 bool hasWritebackToken =
6936 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
6937 static_cast<ARMOperand*>(Operands[3])->getToken() == "!");
6938 bool listContainsBase;
6939 if (checkLowRegisterList(Inst, 3, Rn, 0, listContainsBase) ||
6940 (!listContainsBase && !hasWritebackToken) ||
6941 (listContainsBase && hasWritebackToken)) {
6942 // 16-bit encoding isn't sufficient. Switch to the 32-bit version.
6943 assert (isThumbTwo());
6944 Inst.setOpcode(hasWritebackToken ? ARM::t2LDMIA_UPD : ARM::t2LDMIA);
6945 // If we're switching to the updating version, we need to insert
6946 // the writeback tied operand.
6947 if (hasWritebackToken)
6948 Inst.insert(Inst.begin(),
6949 MCOperand::CreateReg(Inst.getOperand(0).getReg()));
6954 case ARM::tSTMIA_UPD: {
6955 // If the register list contains any high registers, we need to use
6956 // the 32-bit encoding instead if we're in Thumb2. Otherwise, this
6957 // should have generated an error in validateInstruction().
6958 unsigned Rn = Inst.getOperand(0).getReg();
6959 bool listContainsBase;
6960 if (checkLowRegisterList(Inst, 4, Rn, 0, listContainsBase)) {
6961 // 16-bit encoding isn't sufficient. Switch to the 32-bit version.
6962 assert (isThumbTwo());
6963 Inst.setOpcode(ARM::t2STMIA_UPD);
6969 bool listContainsBase;
6970 // If the register list contains any high registers, we need to use
6971 // the 32-bit encoding instead if we're in Thumb2. Otherwise, this
6972 // should have generated an error in validateInstruction().
6973 if (!checkLowRegisterList(Inst, 2, 0, ARM::PC, listContainsBase))
6975 assert (isThumbTwo());
6976 Inst.setOpcode(ARM::t2LDMIA_UPD);
6977 // Add the base register and writeback operands.
6978 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
6979 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
6983 bool listContainsBase;
6984 if (!checkLowRegisterList(Inst, 2, 0, ARM::LR, listContainsBase))
6986 assert (isThumbTwo());
6987 Inst.setOpcode(ARM::t2STMDB_UPD);
6988 // Add the base register and writeback operands.
6989 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
6990 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
6994 // If we can use the 16-bit encoding and the user didn't explicitly
6995 // request the 32-bit variant, transform it here.
6996 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
6997 (unsigned)Inst.getOperand(1).getImm() <= 255 &&
6998 ((!inITBlock() && Inst.getOperand(2).getImm() == ARMCC::AL &&
6999 Inst.getOperand(4).getReg() == ARM::CPSR) ||
7000 (inITBlock() && Inst.getOperand(4).getReg() == 0)) &&
7001 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7002 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7003 // The operands aren't in the same order for tMOVi8...
7005 TmpInst.setOpcode(ARM::tMOVi8);
7006 TmpInst.addOperand(Inst.getOperand(0));
7007 TmpInst.addOperand(Inst.getOperand(4));
7008 TmpInst.addOperand(Inst.getOperand(1));
7009 TmpInst.addOperand(Inst.getOperand(2));
7010 TmpInst.addOperand(Inst.getOperand(3));
7017 // If we can use the 16-bit encoding and the user didn't explicitly
7018 // request the 32-bit variant, transform it here.
7019 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7020 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7021 Inst.getOperand(2).getImm() == ARMCC::AL &&
7022 Inst.getOperand(4).getReg() == ARM::CPSR &&
7023 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7024 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7025 // The operands aren't the same for tMOV[S]r... (no cc_out)
7027 TmpInst.setOpcode(Inst.getOperand(4).getReg() ? ARM::tMOVSr : ARM::tMOVr);
7028 TmpInst.addOperand(Inst.getOperand(0));
7029 TmpInst.addOperand(Inst.getOperand(1));
7030 TmpInst.addOperand(Inst.getOperand(2));
7031 TmpInst.addOperand(Inst.getOperand(3));
7041 // If we can use the 16-bit encoding and the user didn't explicitly
7042 // request the 32-bit variant, transform it here.
7043 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7044 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7045 Inst.getOperand(2).getImm() == 0 &&
7046 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7047 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7049 switch (Inst.getOpcode()) {
7050 default: llvm_unreachable("Illegal opcode!");
7051 case ARM::t2SXTH: NewOpc = ARM::tSXTH; break;
7052 case ARM::t2SXTB: NewOpc = ARM::tSXTB; break;
7053 case ARM::t2UXTH: NewOpc = ARM::tUXTH; break;
7054 case ARM::t2UXTB: NewOpc = ARM::tUXTB; break;
7056 // The operands aren't the same for thumb1 (no rotate operand).
7058 TmpInst.setOpcode(NewOpc);
7059 TmpInst.addOperand(Inst.getOperand(0));
7060 TmpInst.addOperand(Inst.getOperand(1));
7061 TmpInst.addOperand(Inst.getOperand(3));
7062 TmpInst.addOperand(Inst.getOperand(4));
7069 ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(Inst.getOperand(2).getImm());
7070 if (SOpc == ARM_AM::rrx) return false;
7071 if (ARM_AM::getSORegOffset(Inst.getOperand(2).getImm()) == 0) {
7072 // Shifting by zero is accepted as a vanilla 'MOVr'
7074 TmpInst.setOpcode(ARM::MOVr);
7075 TmpInst.addOperand(Inst.getOperand(0));
7076 TmpInst.addOperand(Inst.getOperand(1));
7077 TmpInst.addOperand(Inst.getOperand(3));
7078 TmpInst.addOperand(Inst.getOperand(4));
7079 TmpInst.addOperand(Inst.getOperand(5));
7092 ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(Inst.getOperand(3).getImm());
7093 if (SOpc == ARM_AM::rrx) return false;
7094 switch (Inst.getOpcode()) {
7095 default: llvm_unreachable("unexpected opcode!");
7096 case ARM::ANDrsi: newOpc = ARM::ANDrr; break;
7097 case ARM::ORRrsi: newOpc = ARM::ORRrr; break;
7098 case ARM::EORrsi: newOpc = ARM::EORrr; break;
7099 case ARM::BICrsi: newOpc = ARM::BICrr; break;
7100 case ARM::SUBrsi: newOpc = ARM::SUBrr; break;
7101 case ARM::ADDrsi: newOpc = ARM::ADDrr; break;
7103 // If the shift is by zero, use the non-shifted instruction definition.
7104 if (ARM_AM::getSORegOffset(Inst.getOperand(3).getImm()) == 0) {
7106 TmpInst.setOpcode(newOpc);
7107 TmpInst.addOperand(Inst.getOperand(0));
7108 TmpInst.addOperand(Inst.getOperand(1));
7109 TmpInst.addOperand(Inst.getOperand(2));
7110 TmpInst.addOperand(Inst.getOperand(4));
7111 TmpInst.addOperand(Inst.getOperand(5));
7112 TmpInst.addOperand(Inst.getOperand(6));
7120 // The mask bits for all but the first condition are represented as
7121 // the low bit of the condition code value implies 't'. We currently
7122 // always have 1 implies 't', so XOR toggle the bits if the low bit
7123 // of the condition code is zero. The encoding also expects the low
7124 // bit of the condition to be encoded as bit 4 of the mask operand,
7125 // so mask that in if needed
7126 MCOperand &MO = Inst.getOperand(1);
7127 unsigned Mask = MO.getImm();
7128 unsigned OrigMask = Mask;
7129 unsigned TZ = CountTrailingZeros_32(Mask);
7130 if ((Inst.getOperand(0).getImm() & 1) == 0) {
7131 assert(Mask && TZ <= 3 && "illegal IT mask value!");
7132 for (unsigned i = 3; i != TZ; --i)
7138 // Set up the IT block state according to the IT instruction we just
7140 assert(!inITBlock() && "nested IT blocks?!");
7141 ITState.Cond = ARMCC::CondCodes(Inst.getOperand(0).getImm());
7142 ITState.Mask = OrigMask; // Use the original mask, not the updated one.
7143 ITState.CurPosition = 0;
7144 ITState.FirstCond = true;
7151 unsigned ARMAsmParser::checkTargetMatchPredicate(MCInst &Inst) {
7152 // 16-bit thumb arithmetic instructions either require or preclude the 'S'
7153 // suffix depending on whether they're in an IT block or not.
7154 unsigned Opc = Inst.getOpcode();
7155 const MCInstrDesc &MCID = getInstDesc(Opc);
7156 if (MCID.TSFlags & ARMII::ThumbArithFlagSetting) {
7157 assert(MCID.hasOptionalDef() &&
7158 "optionally flag setting instruction missing optional def operand");
7159 assert(MCID.NumOperands == Inst.getNumOperands() &&
7160 "operand count mismatch!");
7161 // Find the optional-def operand (cc_out).
7164 !MCID.OpInfo[OpNo].isOptionalDef() && OpNo < MCID.NumOperands;
7167 // If we're parsing Thumb1, reject it completely.
7168 if (isThumbOne() && Inst.getOperand(OpNo).getReg() != ARM::CPSR)
7169 return Match_MnemonicFail;
7170 // If we're parsing Thumb2, which form is legal depends on whether we're
7172 if (isThumbTwo() && Inst.getOperand(OpNo).getReg() != ARM::CPSR &&
7174 return Match_RequiresITBlock;
7175 if (isThumbTwo() && Inst.getOperand(OpNo).getReg() == ARM::CPSR &&
7177 return Match_RequiresNotITBlock;
7179 // Some high-register supporting Thumb1 encodings only allow both registers
7180 // to be from r0-r7 when in Thumb2.
7181 else if (Opc == ARM::tADDhirr && isThumbOne() &&
7182 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7183 isARMLowRegister(Inst.getOperand(2).getReg()))
7184 return Match_RequiresThumb2;
7185 // Others only require ARMv6 or later.
7186 else if (Opc == ARM::tMOVr && isThumbOne() && !hasV6Ops() &&
7187 isARMLowRegister(Inst.getOperand(0).getReg()) &&
7188 isARMLowRegister(Inst.getOperand(1).getReg()))
7189 return Match_RequiresV6;
7190 return Match_Success;
7194 MatchAndEmitInstruction(SMLoc IDLoc,
7195 SmallVectorImpl<MCParsedAsmOperand*> &Operands,
7199 unsigned MatchResult;
7200 MatchResult = MatchInstructionImpl(Operands, Inst, ErrorInfo);
7201 switch (MatchResult) {
7204 // Context sensitive operand constraints aren't handled by the matcher,
7205 // so check them here.
7206 if (validateInstruction(Inst, Operands)) {
7207 // Still progress the IT block, otherwise one wrong condition causes
7208 // nasty cascading errors.
7209 forwardITPosition();
7213 // Some instructions need post-processing to, for example, tweak which
7214 // encoding is selected. Loop on it while changes happen so the
7215 // individual transformations can chain off each other. E.g.,
7216 // tPOP(r8)->t2LDMIA_UPD(sp,r8)->t2STR_POST(sp,r8)
7217 while (processInstruction(Inst, Operands))
7220 // Only move forward at the very end so that everything in validate
7221 // and process gets a consistent answer about whether we're in an IT
7223 forwardITPosition();
7225 // ITasm is an ARM mode pseudo-instruction that just sets the ITblock and
7226 // doesn't actually encode.
7227 if (Inst.getOpcode() == ARM::ITasm)
7231 Out.EmitInstruction(Inst);
7233 case Match_MissingFeature:
7234 Error(IDLoc, "instruction requires a CPU feature not currently enabled");
7236 case Match_InvalidOperand: {
7237 SMLoc ErrorLoc = IDLoc;
7238 if (ErrorInfo != ~0U) {
7239 if (ErrorInfo >= Operands.size())
7240 return Error(IDLoc, "too few operands for instruction");
7242 ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
7243 if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
7246 return Error(ErrorLoc, "invalid operand for instruction");
7248 case Match_MnemonicFail:
7249 return Error(IDLoc, "invalid instruction");
7250 case Match_ConversionFail:
7251 // The converter function will have already emited a diagnostic.
7253 case Match_RequiresNotITBlock:
7254 return Error(IDLoc, "flag setting instruction only valid outside IT block");
7255 case Match_RequiresITBlock:
7256 return Error(IDLoc, "instruction only valid inside IT block");
7257 case Match_RequiresV6:
7258 return Error(IDLoc, "instruction variant requires ARMv6 or later");
7259 case Match_RequiresThumb2:
7260 return Error(IDLoc, "instruction variant requires Thumb2");
7263 llvm_unreachable("Implement any new match types added!");
7266 /// parseDirective parses the arm specific directives
7267 bool ARMAsmParser::ParseDirective(AsmToken DirectiveID) {
7268 StringRef IDVal = DirectiveID.getIdentifier();
7269 if (IDVal == ".word")
7270 return parseDirectiveWord(4, DirectiveID.getLoc());
7271 else if (IDVal == ".thumb")
7272 return parseDirectiveThumb(DirectiveID.getLoc());
7273 else if (IDVal == ".arm")
7274 return parseDirectiveARM(DirectiveID.getLoc());
7275 else if (IDVal == ".thumb_func")
7276 return parseDirectiveThumbFunc(DirectiveID.getLoc());
7277 else if (IDVal == ".code")
7278 return parseDirectiveCode(DirectiveID.getLoc());
7279 else if (IDVal == ".syntax")
7280 return parseDirectiveSyntax(DirectiveID.getLoc());
7281 else if (IDVal == ".unreq")
7282 return parseDirectiveUnreq(DirectiveID.getLoc());
7283 else if (IDVal == ".arch")
7284 return parseDirectiveArch(DirectiveID.getLoc());
7285 else if (IDVal == ".eabi_attribute")
7286 return parseDirectiveEabiAttr(DirectiveID.getLoc());
7290 /// parseDirectiveWord
7291 /// ::= .word [ expression (, expression)* ]
7292 bool ARMAsmParser::parseDirectiveWord(unsigned Size, SMLoc L) {
7293 if (getLexer().isNot(AsmToken::EndOfStatement)) {
7295 const MCExpr *Value;
7296 if (getParser().ParseExpression(Value))
7299 getParser().getStreamer().EmitValue(Value, Size, 0/*addrspace*/);
7301 if (getLexer().is(AsmToken::EndOfStatement))
7304 // FIXME: Improve diagnostic.
7305 if (getLexer().isNot(AsmToken::Comma))
7306 return Error(L, "unexpected token in directive");
7315 /// parseDirectiveThumb
7317 bool ARMAsmParser::parseDirectiveThumb(SMLoc L) {
7318 if (getLexer().isNot(AsmToken::EndOfStatement))
7319 return Error(L, "unexpected token in directive");
7324 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16);
7328 /// parseDirectiveARM
7330 bool ARMAsmParser::parseDirectiveARM(SMLoc L) {
7331 if (getLexer().isNot(AsmToken::EndOfStatement))
7332 return Error(L, "unexpected token in directive");
7337 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
7341 /// parseDirectiveThumbFunc
7342 /// ::= .thumbfunc symbol_name
7343 bool ARMAsmParser::parseDirectiveThumbFunc(SMLoc L) {
7344 const MCAsmInfo &MAI = getParser().getStreamer().getContext().getAsmInfo();
7345 bool isMachO = MAI.hasSubsectionsViaSymbols();
7347 bool needFuncName = true;
7349 // Darwin asm has (optionally) function name after .thumb_func direction
7352 const AsmToken &Tok = Parser.getTok();
7353 if (Tok.isNot(AsmToken::EndOfStatement)) {
7354 if (Tok.isNot(AsmToken::Identifier) && Tok.isNot(AsmToken::String))
7355 return Error(L, "unexpected token in .thumb_func directive");
7356 Name = Tok.getIdentifier();
7357 Parser.Lex(); // Consume the identifier token.
7358 needFuncName = false;
7362 if (getLexer().isNot(AsmToken::EndOfStatement))
7363 return Error(L, "unexpected token in directive");
7365 // Eat the end of statement and any blank lines that follow.
7366 while (getLexer().is(AsmToken::EndOfStatement))
7369 // FIXME: assuming function name will be the line following .thumb_func
7370 // We really should be checking the next symbol definition even if there's
7371 // stuff in between.
7373 Name = Parser.getTok().getIdentifier();
7376 // Mark symbol as a thumb symbol.
7377 MCSymbol *Func = getParser().getContext().GetOrCreateSymbol(Name);
7378 getParser().getStreamer().EmitThumbFunc(Func);
7382 /// parseDirectiveSyntax
7383 /// ::= .syntax unified | divided
7384 bool ARMAsmParser::parseDirectiveSyntax(SMLoc L) {
7385 const AsmToken &Tok = Parser.getTok();
7386 if (Tok.isNot(AsmToken::Identifier))
7387 return Error(L, "unexpected token in .syntax directive");
7388 StringRef Mode = Tok.getString();
7389 if (Mode == "unified" || Mode == "UNIFIED")
7391 else if (Mode == "divided" || Mode == "DIVIDED")
7392 return Error(L, "'.syntax divided' arm asssembly not supported");
7394 return Error(L, "unrecognized syntax mode in .syntax directive");
7396 if (getLexer().isNot(AsmToken::EndOfStatement))
7397 return Error(Parser.getTok().getLoc(), "unexpected token in directive");
7400 // TODO tell the MC streamer the mode
7401 // getParser().getStreamer().Emit???();
7405 /// parseDirectiveCode
7406 /// ::= .code 16 | 32
7407 bool ARMAsmParser::parseDirectiveCode(SMLoc L) {
7408 const AsmToken &Tok = Parser.getTok();
7409 if (Tok.isNot(AsmToken::Integer))
7410 return Error(L, "unexpected token in .code directive");
7411 int64_t Val = Parser.getTok().getIntVal();
7417 return Error(L, "invalid operand to .code directive");
7419 if (getLexer().isNot(AsmToken::EndOfStatement))
7420 return Error(Parser.getTok().getLoc(), "unexpected token in directive");
7426 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16);
7430 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
7436 /// parseDirectiveReq
7437 /// ::= name .req registername
7438 bool ARMAsmParser::parseDirectiveReq(StringRef Name, SMLoc L) {
7439 Parser.Lex(); // Eat the '.req' token.
7441 SMLoc SRegLoc, ERegLoc;
7442 if (ParseRegister(Reg, SRegLoc, ERegLoc)) {
7443 Parser.EatToEndOfStatement();
7444 return Error(SRegLoc, "register name expected");
7447 // Shouldn't be anything else.
7448 if (Parser.getTok().isNot(AsmToken::EndOfStatement)) {
7449 Parser.EatToEndOfStatement();
7450 return Error(Parser.getTok().getLoc(),
7451 "unexpected input in .req directive.");
7454 Parser.Lex(); // Consume the EndOfStatement
7456 if (RegisterReqs.GetOrCreateValue(Name, Reg).getValue() != Reg)
7457 return Error(SRegLoc, "redefinition of '" + Name +
7458 "' does not match original.");
7463 /// parseDirectiveUneq
7464 /// ::= .unreq registername
7465 bool ARMAsmParser::parseDirectiveUnreq(SMLoc L) {
7466 if (Parser.getTok().isNot(AsmToken::Identifier)) {
7467 Parser.EatToEndOfStatement();
7468 return Error(L, "unexpected input in .unreq directive.");
7470 RegisterReqs.erase(Parser.getTok().getIdentifier());
7471 Parser.Lex(); // Eat the identifier.
7475 /// parseDirectiveArch
7477 bool ARMAsmParser::parseDirectiveArch(SMLoc L) {
7481 /// parseDirectiveEabiAttr
7482 /// ::= .eabi_attribute int, int
7483 bool ARMAsmParser::parseDirectiveEabiAttr(SMLoc L) {
7487 extern "C" void LLVMInitializeARMAsmLexer();
7489 /// Force static initialization.
7490 extern "C" void LLVMInitializeARMAsmParser() {
7491 RegisterMCAsmParser<ARMAsmParser> X(TheARMTarget);
7492 RegisterMCAsmParser<ARMAsmParser> Y(TheThumbTarget);
7493 LLVMInitializeARMAsmLexer();
7496 #define GET_REGISTER_MATCHER
7497 #define GET_MATCHER_IMPLEMENTATION
7498 #include "ARMGenAsmMatcher.inc"