ARMAsmParser.cpp revision fdcee77887372dbf6589d47cc33094965b679f24
1ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby//===-- ARMAsmParser.cpp - Parse ARM assembly to MCInst instructions ------===// 2ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby// 3ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby// The LLVM Compiler Infrastructure 4ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby// 5ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby// This file is distributed under the University of Illinois Open Source 6ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby// License. See LICENSE.TXT for details. 7ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby// 8ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby//===----------------------------------------------------------------------===// 9ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby 10ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby#include "ARM.h" 1192b5a2eb1646b3c1173a5ff3c0073f24ed5ee6a4Bill Wendling#include "ARMAddressingModes.h" 127597212abced110723f2fee985a7d60557c092ecEvan Cheng#include "ARMMCExpr.h" 13b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng#include "ARMBaseRegisterInfo.h" 143483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar#include "ARMSubtarget.h" 15c6ef277a0b8f43af22d86aea9d5053749cacfbbbChris Lattner#include "llvm/MC/MCParser/MCAsmLexer.h" 16c6ef277a0b8f43af22d86aea9d5053749cacfbbbChris Lattner#include "llvm/MC/MCParser/MCAsmParser.h" 17c6ef277a0b8f43af22d86aea9d5053749cacfbbbChris Lattner#include "llvm/MC/MCParser/MCParsedAsmOperand.h" 18642fc9c24ba7c43a4a962c6c05cfffce713d7de7Jim Grosbach#include "llvm/MC/MCContext.h" 19ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby#include "llvm/MC/MCStreamer.h" 20ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby#include "llvm/MC/MCExpr.h" 21ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby#include "llvm/MC/MCInst.h" 22ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby#include "llvm/Target/TargetRegistry.h" 23ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby#include "llvm/Target/TargetAsmParser.h" 24c6ef277a0b8f43af22d86aea9d5053749cacfbbbChris Lattner#include "llvm/Support/SourceMgr.h" 25fa315de8f44ddb318a7c6ff913e80d71d7c68859Daniel Dunbar#include "llvm/Support/raw_ostream.h" 26c6ef277a0b8f43af22d86aea9d5053749cacfbbbChris Lattner#include "llvm/ADT/SmallVector.h" 270c9f250d54ed59108fffe5ce2f7df7bc8448915cOwen Anderson#include "llvm/ADT/StringExtras.h" 28345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar#include "llvm/ADT/StringSwitch.h" 29c6ef277a0b8f43af22d86aea9d5053749cacfbbbChris Lattner#include "llvm/ADT/Twine.h" 30ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderbyusing namespace llvm; 31ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby 326a5c22ed89c8bb73034a70105340acf6539dc58bDaniel Dunbar/// Shift types used for register controlled shifts in ARM memory addressing. 33a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderbyenum ShiftType { 34a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby Lsl, 35a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby Lsr, 36a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby Asr, 37a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby Ror, 38a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby Rrx 39a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby}; 40a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 413a69756e392942bc522193f38d7f33958ed3b131Chris Lattnernamespace { 42146018fc6414eb2a1e67b2d8798a42a2f55ec96cBill Wendling 43146018fc6414eb2a1e67b2d8798a42a2f55ec96cBill Wendlingclass ARMOperand; 4416c7425cff6ac3d0a4a9c56779bdfa91b2e8e863Jim Grosbach 45ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderbyclass ARMAsmParser : public TargetAsmParser { 46ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby MCAsmParser &Parser; 47d73ada7d24832bc2a4c3965b8f00ffd951341acfDaniel Dunbar TargetMachine &TM; 48ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby 49ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby MCAsmParser &getParser() const { return Parser; } 50ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby MCAsmLexer &getLexer() const { return Parser.getLexer(); } 51ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby 52ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby void Warning(SMLoc L, const Twine &Msg) { Parser.Warning(L, Msg); } 53ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby bool Error(SMLoc L, const Twine &Msg) { return Parser.Error(L, Msg); } 54ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby 55e5658fa15ebb733e0786a96c1852c7cf590d5b24Chris Lattner int TryParseRegister(); 56e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson bool TryParseMCRName(SmallVectorImpl<MCParsedAsmOperand*>&); 5750d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling bool TryParseRegisterWithWriteBack(SmallVectorImpl<MCParsedAsmOperand*> &); 5850d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling bool ParseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &); 5950d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling bool ParseMemory(SmallVectorImpl<MCParsedAsmOperand*> &); 60e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson bool ParseOperand(SmallVectorImpl<MCParsedAsmOperand*> &, bool isMCR); 617597212abced110723f2fee985a7d60557c092ecEvan Cheng bool ParsePrefix(ARMMCExpr::VariantKind &RefKind); 629081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim const MCExpr *ApplyPrefixToExpr(const MCExpr *E, 639081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim MCSymbolRefExpr::VariantKind Variant); 649081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim 65a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 669c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby bool ParseMemoryOffsetReg(bool &Negative, 679c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby bool &OffsetRegShifted, 689c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby enum ShiftType &ShiftType, 699c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby const MCExpr *&ShiftAmount, 709c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby const MCExpr *&Offset, 719c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby bool &OffsetIsReg, 72762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan int &OffsetRegNum, 73762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan SMLoc &E); 74762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan bool ParseShift(enum ShiftType &St, const MCExpr *&ShiftAmount, SMLoc &E); 75ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby bool ParseDirectiveWord(unsigned Size, SMLoc L); 76515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby bool ParseDirectiveThumb(SMLoc L); 77515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby bool ParseDirectiveThumbFunc(SMLoc L); 78515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby bool ParseDirectiveCode(SMLoc L); 79515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby bool ParseDirectiveSyntax(SMLoc L); 80515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby 817036f8be4df8a1a830ca01afe9497b035a5647d6Chris Lattner bool MatchAndEmitInstruction(SMLoc IDLoc, 827c51a3172cf5104ebeaef22f1366fa634ca00d85Chris Lattner SmallVectorImpl<MCParsedAsmOperand*> &Operands, 83fa42fad8bf7b0058ba031a275e1e8ce53b2cb1adChris Lattner MCStreamer &Out); 84fdcee77887372dbf6589d47cc33094965b679f24Bruno Cardoso Lopes void GetMnemonicAcceptInfo(StringRef Mnemonic, bool &CanAcceptCarrySet, 85fdcee77887372dbf6589d47cc33094965b679f24Bruno Cardoso Lopes bool &CanAcceptPredicationCode); 8616c7425cff6ac3d0a4a9c56779bdfa91b2e8e863Jim Grosbach 87a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby /// @name Auto-generated Match Functions 88a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby /// { 893483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar 900692ee676f8cdad25ad09a868bf597af4115c9d9Chris Lattner#define GET_ASSEMBLER_HEADER 910692ee676f8cdad25ad09a868bf597af4115c9d9Chris Lattner#include "ARMGenAsmMatcher.inc" 92a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 93a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby /// } 94a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 95ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderbypublic: 96d73ada7d24832bc2a4c3965b8f00ffd951341acfDaniel Dunbar ARMAsmParser(const Target &T, MCAsmParser &_Parser, TargetMachine &_TM) 97833c93c7958dbbd9d648f331091fbfbeabf342e6Jim Grosbach : TargetAsmParser(T), Parser(_Parser), TM(_TM) { 98833c93c7958dbbd9d648f331091fbfbeabf342e6Jim Grosbach // Initialize the set of available features. 99833c93c7958dbbd9d648f331091fbfbeabf342e6Jim Grosbach setAvailableFeatures(ComputeAvailableFeatures( 100833c93c7958dbbd9d648f331091fbfbeabf342e6Jim Grosbach &TM.getSubtarget<ARMSubtarget>())); 101833c93c7958dbbd9d648f331091fbfbeabf342e6Jim Grosbach } 102ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby 10338e59891ee4417a9be2f8146ce0ba3269e38ac21Benjamin Kramer virtual bool ParseInstruction(StringRef Name, SMLoc NameLoc, 1049898671a74d3fc924347e679c45edaa685b3fe6eChris Lattner SmallVectorImpl<MCParsedAsmOperand*> &Operands); 105ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby virtual bool ParseDirective(AsmToken DirectiveID); 106ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby}; 10716c7425cff6ac3d0a4a9c56779bdfa91b2e8e863Jim Grosbach} // end anonymous namespace 10816c7425cff6ac3d0a4a9c56779bdfa91b2e8e863Jim Grosbach 1093a69756e392942bc522193f38d7f33958ed3b131Chris Lattnernamespace { 1103a69756e392942bc522193f38d7f33958ed3b131Chris Lattner 111a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby/// ARMOperand - Instances of this class represent a parsed ARM machine 112a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby/// instruction. 113146018fc6414eb2a1e67b2d8798a42a2f55ec96cBill Wendlingclass ARMOperand : public MCParsedAsmOperand { 114762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan enum KindTy { 1158462b30548fb5969250858036638c73c16b65b43Daniel Dunbar CondCode, 116d67641b6f804110505a69aaed5479f446bbbb34eJim Grosbach CCOut, 117cfe072401658bbe9336b200b79526b65c5213b74Kevin Enderby Immediate, 1188462b30548fb5969250858036638c73c16b65b43Daniel Dunbar Memory, 1198462b30548fb5969250858036638c73c16b65b43Daniel Dunbar Register, 1208d5acb7007decaf0c30bf4a3d4c55e5cc2cce0a7Bill Wendling RegisterList, 1210f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling DPRRegisterList, 1220f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling SPRRegisterList, 1238462b30548fb5969250858036638c73c16b65b43Daniel Dunbar Token 124a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby } Kind; 125a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 126762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan SMLoc StartLoc, EndLoc; 12724d22d27640e9de954a5ac26f51a45cc96bb9135Bill Wendling SmallVector<unsigned, 8> Registers; 128a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 129a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby union { 130a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby struct { 1318462b30548fb5969250858036638c73c16b65b43Daniel Dunbar ARMCC::CondCodes Val; 1328462b30548fb5969250858036638c73c16b65b43Daniel Dunbar } CC; 1338462b30548fb5969250858036638c73c16b65b43Daniel Dunbar 1348462b30548fb5969250858036638c73c16b65b43Daniel Dunbar struct { 135a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby const char *Data; 136a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby unsigned Length; 137a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby } Tok; 138a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 139a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby struct { 140a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby unsigned RegNum; 141a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby } Reg; 142a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 1438155e5b753aca42973cf317727f3805faddcaf90Bill Wendling struct { 144cfe072401658bbe9336b200b79526b65c5213b74Kevin Enderby const MCExpr *Val; 145cfe072401658bbe9336b200b79526b65c5213b74Kevin Enderby } Imm; 14616c7425cff6ac3d0a4a9c56779bdfa91b2e8e863Jim Grosbach 1476a5c22ed89c8bb73034a70105340acf6539dc58bDaniel Dunbar /// Combined record for all forms of ARM address expressions. 148a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby struct { 149a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby unsigned BaseRegNum; 1502637dc9a252f25fd1c63acfe0606860ee7c8cfdfDaniel Dunbar union { 1512637dc9a252f25fd1c63acfe0606860ee7c8cfdfDaniel Dunbar unsigned RegNum; ///< Offset register num, when OffsetIsReg. 1522637dc9a252f25fd1c63acfe0606860ee7c8cfdfDaniel Dunbar const MCExpr *Value; ///< Offset value, when !OffsetIsReg. 1532637dc9a252f25fd1c63acfe0606860ee7c8cfdfDaniel Dunbar } Offset; 154146018fc6414eb2a1e67b2d8798a42a2f55ec96cBill Wendling const MCExpr *ShiftAmount; // used when OffsetRegShifted is true 155146018fc6414eb2a1e67b2d8798a42a2f55ec96cBill Wendling enum ShiftType ShiftType; // used when OffsetRegShifted is true 156146018fc6414eb2a1e67b2d8798a42a2f55ec96cBill Wendling unsigned OffsetRegShifted : 1; // only used when OffsetIsReg is true 15750d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling unsigned Preindexed : 1; 15850d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling unsigned Postindexed : 1; 15950d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling unsigned OffsetIsReg : 1; 16050d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling unsigned Negative : 1; // only used when OffsetIsReg is true 16150d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling unsigned Writeback : 1; 162a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby } Mem; 163a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby }; 16416c7425cff6ac3d0a4a9c56779bdfa91b2e8e863Jim Grosbach 165146018fc6414eb2a1e67b2d8798a42a2f55ec96cBill Wendling ARMOperand(KindTy K) : MCParsedAsmOperand(), Kind(K) {} 166146018fc6414eb2a1e67b2d8798a42a2f55ec96cBill Wendlingpublic: 167762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan ARMOperand(const ARMOperand &o) : MCParsedAsmOperand() { 168762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Kind = o.Kind; 169762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan StartLoc = o.StartLoc; 170762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan EndLoc = o.EndLoc; 171762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan switch (Kind) { 1728462b30548fb5969250858036638c73c16b65b43Daniel Dunbar case CondCode: 1738462b30548fb5969250858036638c73c16b65b43Daniel Dunbar CC = o.CC; 1748462b30548fb5969250858036638c73c16b65b43Daniel Dunbar break; 175762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan case Token: 1768462b30548fb5969250858036638c73c16b65b43Daniel Dunbar Tok = o.Tok; 177762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan break; 178d67641b6f804110505a69aaed5479f446bbbb34eJim Grosbach case CCOut: 179762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan case Register: 180762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Reg = o.Reg; 181762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan break; 1828d5acb7007decaf0c30bf4a3d4c55e5cc2cce0a7Bill Wendling case RegisterList: 1830f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling case DPRRegisterList: 1840f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling case SPRRegisterList: 18524d22d27640e9de954a5ac26f51a45cc96bb9135Bill Wendling Registers = o.Registers; 1868d5acb7007decaf0c30bf4a3d4c55e5cc2cce0a7Bill Wendling break; 187762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan case Immediate: 188762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Imm = o.Imm; 189762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan break; 190762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan case Memory: 191762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Mem = o.Mem; 192762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan break; 193762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan } 194762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan } 19516c7425cff6ac3d0a4a9c56779bdfa91b2e8e863Jim Grosbach 196762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan /// getStartLoc - Get the location of the first token of this operand. 197762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan SMLoc getStartLoc() const { return StartLoc; } 198762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan /// getEndLoc - Get the location of the last token of this operand. 199762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan SMLoc getEndLoc() const { return EndLoc; } 200a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 2018462b30548fb5969250858036638c73c16b65b43Daniel Dunbar ARMCC::CondCodes getCondCode() const { 2028462b30548fb5969250858036638c73c16b65b43Daniel Dunbar assert(Kind == CondCode && "Invalid access!"); 2038462b30548fb5969250858036638c73c16b65b43Daniel Dunbar return CC.Val; 2048462b30548fb5969250858036638c73c16b65b43Daniel Dunbar } 2058462b30548fb5969250858036638c73c16b65b43Daniel Dunbar 206a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby StringRef getToken() const { 207a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby assert(Kind == Token && "Invalid access!"); 208a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby return StringRef(Tok.Data, Tok.Length); 209a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby } 210a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 211a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby unsigned getReg() const { 2126aa49435994c33257b7588cac24671785d17fa6eBenjamin Kramer assert((Kind == Register || Kind == CCOut) && "Invalid access!"); 2137729e06c128be01fc564870d5ea3d22d236dddb5Bill Wendling return Reg.RegNum; 214a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby } 215a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 2165fa22a19750c082ff161db1702ebe96dd2a787e7Bill Wendling const SmallVectorImpl<unsigned> &getRegList() const { 2170f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling assert((Kind == RegisterList || Kind == DPRRegisterList || 2180f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling Kind == SPRRegisterList) && "Invalid access!"); 21924d22d27640e9de954a5ac26f51a45cc96bb9135Bill Wendling return Registers; 2208d5acb7007decaf0c30bf4a3d4c55e5cc2cce0a7Bill Wendling } 2218d5acb7007decaf0c30bf4a3d4c55e5cc2cce0a7Bill Wendling 222cfe072401658bbe9336b200b79526b65c5213b74Kevin Enderby const MCExpr *getImm() const { 223cfe072401658bbe9336b200b79526b65c5213b74Kevin Enderby assert(Kind == Immediate && "Invalid access!"); 224cfe072401658bbe9336b200b79526b65c5213b74Kevin Enderby return Imm.Val; 225cfe072401658bbe9336b200b79526b65c5213b74Kevin Enderby } 226cfe072401658bbe9336b200b79526b65c5213b74Kevin Enderby 2276ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar /// @name Memory Operand Accessors 2286ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar /// @{ 2296ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar 2306ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar unsigned getMemBaseRegNum() const { 2316ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar return Mem.BaseRegNum; 2326ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar } 2336ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar unsigned getMemOffsetRegNum() const { 2346ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar assert(Mem.OffsetIsReg && "Invalid access!"); 2356ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar return Mem.Offset.RegNum; 2366ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar } 2376ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar const MCExpr *getMemOffset() const { 2386ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar assert(!Mem.OffsetIsReg && "Invalid access!"); 2396ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar return Mem.Offset.Value; 2406ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar } 2416ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar unsigned getMemOffsetRegShifted() const { 2426ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar assert(Mem.OffsetIsReg && "Invalid access!"); 2436ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar return Mem.OffsetRegShifted; 2446ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar } 2456ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar const MCExpr *getMemShiftAmount() const { 2466ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar assert(Mem.OffsetIsReg && Mem.OffsetRegShifted && "Invalid access!"); 2476ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar return Mem.ShiftAmount; 2486ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar } 2496ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar enum ShiftType getMemShiftType() const { 2506ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar assert(Mem.OffsetIsReg && Mem.OffsetRegShifted && "Invalid access!"); 2516ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar return Mem.ShiftType; 2526ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar } 2536ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar bool getMemPreindexed() const { return Mem.Preindexed; } 2546ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar bool getMemPostindexed() const { return Mem.Postindexed; } 2556ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar bool getMemOffsetIsReg() const { return Mem.OffsetIsReg; } 2566ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar bool getMemNegative() const { return Mem.Negative; } 2576ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar bool getMemWriteback() const { return Mem.Writeback; } 2586ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar 2596ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar /// @} 2606ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar 2618462b30548fb5969250858036638c73c16b65b43Daniel Dunbar bool isCondCode() const { return Kind == CondCode; } 262d67641b6f804110505a69aaed5479f446bbbb34eJim Grosbach bool isCCOut() const { return Kind == CCOut; } 2633483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar bool isImm() const { return Kind == Immediate; } 264b32e7844e9f79d2bd4ff34a1d19aba347f999abcBill Wendling bool isReg() const { return Kind == Register; } 2658d5acb7007decaf0c30bf4a3d4c55e5cc2cce0a7Bill Wendling bool isRegList() const { return Kind == RegisterList; } 2660f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling bool isDPRRegList() const { return Kind == DPRRegisterList; } 2670f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling bool isSPRRegList() const { return Kind == SPRRegisterList; } 26814b93851cc7611ae6c2000f1c162592ead954420Chris Lattner bool isToken() const { return Kind == Token; } 26914b93851cc7611ae6c2000f1c162592ead954420Chris Lattner bool isMemory() const { return Kind == Memory; } 27087f4f9a946549ad93046990a364ac5190333a7ebBill Wendling bool isMemMode5() const { 2714b462672d2b4950e5f059bd093db524aa10e8377Daniel Dunbar if (!isMemory() || getMemOffsetIsReg() || getMemWriteback() || 2724b462672d2b4950e5f059bd093db524aa10e8377Daniel Dunbar getMemNegative()) 27387f4f9a946549ad93046990a364ac5190333a7ebBill Wendling return false; 274ef4a68badbde372faac9ca47efb9001def57a43dBill Wendling 2754b462672d2b4950e5f059bd093db524aa10e8377Daniel Dunbar const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getMemOffset()); 276ef4a68badbde372faac9ca47efb9001def57a43dBill Wendling if (!CE) return false; 277ef4a68badbde372faac9ca47efb9001def57a43dBill Wendling 27887f4f9a946549ad93046990a364ac5190333a7ebBill Wendling // The offset must be a multiple of 4 in the range 0-1020. 27987f4f9a946549ad93046990a364ac5190333a7ebBill Wendling int64_t Value = CE->getValue(); 28087f4f9a946549ad93046990a364ac5190333a7ebBill Wendling return ((Value & 0x3) == 0 && Value <= 1020 && Value >= -1020); 28187f4f9a946549ad93046990a364ac5190333a7ebBill Wendling } 282f4caf69720d807573c50d41aa06bcec1c99bdbbdBill Wendling bool isMemModeRegThumb() const { 2834b462672d2b4950e5f059bd093db524aa10e8377Daniel Dunbar if (!isMemory() || !getMemOffsetIsReg() || getMemWriteback()) 284f4caf69720d807573c50d41aa06bcec1c99bdbbdBill Wendling return false; 285d3df5f32c059b3ac111f1c08571d5493aa1d48c6Daniel Dunbar return true; 286f4caf69720d807573c50d41aa06bcec1c99bdbbdBill Wendling } 287f4caf69720d807573c50d41aa06bcec1c99bdbbdBill Wendling bool isMemModeImmThumb() const { 2884b462672d2b4950e5f059bd093db524aa10e8377Daniel Dunbar if (!isMemory() || getMemOffsetIsReg() || getMemWriteback()) 289ef4a68badbde372faac9ca47efb9001def57a43dBill Wendling return false; 290ef4a68badbde372faac9ca47efb9001def57a43dBill Wendling 2914b462672d2b4950e5f059bd093db524aa10e8377Daniel Dunbar const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getMemOffset()); 292ef4a68badbde372faac9ca47efb9001def57a43dBill Wendling if (!CE) return false; 293ef4a68badbde372faac9ca47efb9001def57a43dBill Wendling 294ef4a68badbde372faac9ca47efb9001def57a43dBill Wendling // The offset must be a multiple of 4 in the range 0-124. 295ef4a68badbde372faac9ca47efb9001def57a43dBill Wendling uint64_t Value = CE->getValue(); 296ef4a68badbde372faac9ca47efb9001def57a43dBill Wendling return ((Value & 0x3) == 0 && Value <= 124); 297ef4a68badbde372faac9ca47efb9001def57a43dBill Wendling } 2983483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar 2993483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar void addExpr(MCInst &Inst, const MCExpr *Expr) const { 30014b93851cc7611ae6c2000f1c162592ead954420Chris Lattner // Add as immediates when possible. Null MCExpr = 0. 30114b93851cc7611ae6c2000f1c162592ead954420Chris Lattner if (Expr == 0) 30214b93851cc7611ae6c2000f1c162592ead954420Chris Lattner Inst.addOperand(MCOperand::CreateImm(0)); 30314b93851cc7611ae6c2000f1c162592ead954420Chris Lattner else if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr)) 3043483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar Inst.addOperand(MCOperand::CreateImm(CE->getValue())); 3053483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar else 3063483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar Inst.addOperand(MCOperand::CreateExpr(Expr)); 3073483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar } 3083483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar 3098462b30548fb5969250858036638c73c16b65b43Daniel Dunbar void addCondCodeOperands(MCInst &Inst, unsigned N) const { 310345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar assert(N == 2 && "Invalid number of operands!"); 3118462b30548fb5969250858036638c73c16b65b43Daniel Dunbar Inst.addOperand(MCOperand::CreateImm(unsigned(getCondCode()))); 31204f74942f2994a7c1d8e62c207c4005ed4652b6aJim Grosbach unsigned RegNum = getCondCode() == ARMCC::AL ? 0: ARM::CPSR; 31304f74942f2994a7c1d8e62c207c4005ed4652b6aJim Grosbach Inst.addOperand(MCOperand::CreateReg(RegNum)); 3148462b30548fb5969250858036638c73c16b65b43Daniel Dunbar } 3158462b30548fb5969250858036638c73c16b65b43Daniel Dunbar 316d67641b6f804110505a69aaed5479f446bbbb34eJim Grosbach void addCCOutOperands(MCInst &Inst, unsigned N) const { 317d67641b6f804110505a69aaed5479f446bbbb34eJim Grosbach assert(N == 1 && "Invalid number of operands!"); 318d67641b6f804110505a69aaed5479f446bbbb34eJim Grosbach Inst.addOperand(MCOperand::CreateReg(getReg())); 319d67641b6f804110505a69aaed5479f446bbbb34eJim Grosbach } 320d67641b6f804110505a69aaed5479f446bbbb34eJim Grosbach 321a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby void addRegOperands(MCInst &Inst, unsigned N) const { 322a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby assert(N == 1 && "Invalid number of operands!"); 323a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby Inst.addOperand(MCOperand::CreateReg(getReg())); 324a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby } 325a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 32687f4f9a946549ad93046990a364ac5190333a7ebBill Wendling void addRegListOperands(MCInst &Inst, unsigned N) const { 3277729e06c128be01fc564870d5ea3d22d236dddb5Bill Wendling assert(N == 1 && "Invalid number of operands!"); 3285fa22a19750c082ff161db1702ebe96dd2a787e7Bill Wendling const SmallVectorImpl<unsigned> &RegList = getRegList(); 3295fa22a19750c082ff161db1702ebe96dd2a787e7Bill Wendling for (SmallVectorImpl<unsigned>::const_iterator 3307729e06c128be01fc564870d5ea3d22d236dddb5Bill Wendling I = RegList.begin(), E = RegList.end(); I != E; ++I) 3317729e06c128be01fc564870d5ea3d22d236dddb5Bill Wendling Inst.addOperand(MCOperand::CreateReg(*I)); 33287f4f9a946549ad93046990a364ac5190333a7ebBill Wendling } 33387f4f9a946549ad93046990a364ac5190333a7ebBill Wendling 3340f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling void addDPRRegListOperands(MCInst &Inst, unsigned N) const { 3350f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling addRegListOperands(Inst, N); 3360f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling } 3370f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling 3380f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling void addSPRRegListOperands(MCInst &Inst, unsigned N) const { 3390f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling addRegListOperands(Inst, N); 3400f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling } 3410f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling 3423483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar void addImmOperands(MCInst &Inst, unsigned N) const { 3433483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar assert(N == 1 && "Invalid number of operands!"); 3443483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar addExpr(Inst, getImm()); 3453483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar } 34616c7425cff6ac3d0a4a9c56779bdfa91b2e8e863Jim Grosbach 34714b93851cc7611ae6c2000f1c162592ead954420Chris Lattner void addMemMode5Operands(MCInst &Inst, unsigned N) const { 34814b93851cc7611ae6c2000f1c162592ead954420Chris Lattner assert(N == 2 && isMemMode5() && "Invalid number of operands!"); 34916c7425cff6ac3d0a4a9c56779bdfa91b2e8e863Jim Grosbach 3504b462672d2b4950e5f059bd093db524aa10e8377Daniel Dunbar Inst.addOperand(MCOperand::CreateReg(getMemBaseRegNum())); 3514b462672d2b4950e5f059bd093db524aa10e8377Daniel Dunbar assert(!getMemOffsetIsReg() && "Invalid mode 5 operand"); 35292b5a2eb1646b3c1173a5ff3c0073f24ed5ee6a4Bill Wendling 35380eb233a3ce1a6f2e6c0847cb3e456d735e37569Jim Grosbach // FIXME: #-0 is encoded differently than #0. Does the parser preserve 35480eb233a3ce1a6f2e6c0847cb3e456d735e37569Jim Grosbach // the difference? 3554b462672d2b4950e5f059bd093db524aa10e8377Daniel Dunbar const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getMemOffset()); 356d3df5f32c059b3ac111f1c08571d5493aa1d48c6Daniel Dunbar assert(CE && "Non-constant mode 5 offset operand!"); 357d3df5f32c059b3ac111f1c08571d5493aa1d48c6Daniel Dunbar 358d3df5f32c059b3ac111f1c08571d5493aa1d48c6Daniel Dunbar // The MCInst offset operand doesn't include the low two bits (like 359d3df5f32c059b3ac111f1c08571d5493aa1d48c6Daniel Dunbar // the instruction encoding). 360d3df5f32c059b3ac111f1c08571d5493aa1d48c6Daniel Dunbar int64_t Offset = CE->getValue() / 4; 361d3df5f32c059b3ac111f1c08571d5493aa1d48c6Daniel Dunbar if (Offset >= 0) 362d3df5f32c059b3ac111f1c08571d5493aa1d48c6Daniel Dunbar Inst.addOperand(MCOperand::CreateImm(ARM_AM::getAM5Opc(ARM_AM::add, 363d3df5f32c059b3ac111f1c08571d5493aa1d48c6Daniel Dunbar Offset))); 364d3df5f32c059b3ac111f1c08571d5493aa1d48c6Daniel Dunbar else 365d3df5f32c059b3ac111f1c08571d5493aa1d48c6Daniel Dunbar Inst.addOperand(MCOperand::CreateImm(ARM_AM::getAM5Opc(ARM_AM::sub, 366d3df5f32c059b3ac111f1c08571d5493aa1d48c6Daniel Dunbar -Offset))); 36714b93851cc7611ae6c2000f1c162592ead954420Chris Lattner } 3683483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar 369f4caf69720d807573c50d41aa06bcec1c99bdbbdBill Wendling void addMemModeRegThumbOperands(MCInst &Inst, unsigned N) const { 370f4caf69720d807573c50d41aa06bcec1c99bdbbdBill Wendling assert(N == 2 && isMemModeRegThumb() && "Invalid number of operands!"); 3714b462672d2b4950e5f059bd093db524aa10e8377Daniel Dunbar Inst.addOperand(MCOperand::CreateReg(getMemBaseRegNum())); 3724b462672d2b4950e5f059bd093db524aa10e8377Daniel Dunbar Inst.addOperand(MCOperand::CreateReg(getMemOffsetRegNum())); 373f4caf69720d807573c50d41aa06bcec1c99bdbbdBill Wendling } 374ef4a68badbde372faac9ca47efb9001def57a43dBill Wendling 375f4caf69720d807573c50d41aa06bcec1c99bdbbdBill Wendling void addMemModeImmThumbOperands(MCInst &Inst, unsigned N) const { 376f4caf69720d807573c50d41aa06bcec1c99bdbbdBill Wendling assert(N == 2 && isMemModeImmThumb() && "Invalid number of operands!"); 3774b462672d2b4950e5f059bd093db524aa10e8377Daniel Dunbar Inst.addOperand(MCOperand::CreateReg(getMemBaseRegNum())); 3784b462672d2b4950e5f059bd093db524aa10e8377Daniel Dunbar const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getMemOffset()); 379f4caf69720d807573c50d41aa06bcec1c99bdbbdBill Wendling assert(CE && "Non-constant mode offset operand!"); 380f4caf69720d807573c50d41aa06bcec1c99bdbbdBill Wendling Inst.addOperand(MCOperand::CreateImm(CE->getValue())); 381ef4a68badbde372faac9ca47efb9001def57a43dBill Wendling } 382ef4a68badbde372faac9ca47efb9001def57a43dBill Wendling 383fa315de8f44ddb318a7c6ff913e80d71d7c68859Daniel Dunbar virtual void dump(raw_ostream &OS) const; 384b3cb6967949493a2e1b10d015ac08b746736764eDaniel Dunbar 3853a69756e392942bc522193f38d7f33958ed3b131Chris Lattner static ARMOperand *CreateCondCode(ARMCC::CondCodes CC, SMLoc S) { 3863a69756e392942bc522193f38d7f33958ed3b131Chris Lattner ARMOperand *Op = new ARMOperand(CondCode); 387345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar Op->CC.Val = CC; 388345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar Op->StartLoc = S; 389345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar Op->EndLoc = S; 3903a69756e392942bc522193f38d7f33958ed3b131Chris Lattner return Op; 391345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar } 392345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar 393d67641b6f804110505a69aaed5479f446bbbb34eJim Grosbach static ARMOperand *CreateCCOut(unsigned RegNum, SMLoc S) { 394d67641b6f804110505a69aaed5479f446bbbb34eJim Grosbach ARMOperand *Op = new ARMOperand(CCOut); 395d67641b6f804110505a69aaed5479f446bbbb34eJim Grosbach Op->Reg.RegNum = RegNum; 396d67641b6f804110505a69aaed5479f446bbbb34eJim Grosbach Op->StartLoc = S; 397d67641b6f804110505a69aaed5479f446bbbb34eJim Grosbach Op->EndLoc = S; 398d67641b6f804110505a69aaed5479f446bbbb34eJim Grosbach return Op; 399d67641b6f804110505a69aaed5479f446bbbb34eJim Grosbach } 400d67641b6f804110505a69aaed5479f446bbbb34eJim Grosbach 4013a69756e392942bc522193f38d7f33958ed3b131Chris Lattner static ARMOperand *CreateToken(StringRef Str, SMLoc S) { 4023a69756e392942bc522193f38d7f33958ed3b131Chris Lattner ARMOperand *Op = new ARMOperand(Token); 403762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Op->Tok.Data = Str.data(); 404762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Op->Tok.Length = Str.size(); 405762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Op->StartLoc = S; 406762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Op->EndLoc = S; 4073a69756e392942bc522193f38d7f33958ed3b131Chris Lattner return Op; 408a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby } 409a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 41050d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling static ARMOperand *CreateReg(unsigned RegNum, SMLoc S, SMLoc E) { 4113a69756e392942bc522193f38d7f33958ed3b131Chris Lattner ARMOperand *Op = new ARMOperand(Register); 412762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Op->Reg.RegNum = RegNum; 413762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Op->StartLoc = S; 414762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Op->EndLoc = E; 4153a69756e392942bc522193f38d7f33958ed3b131Chris Lattner return Op; 416a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby } 417a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 4187729e06c128be01fc564870d5ea3d22d236dddb5Bill Wendling static ARMOperand * 4195fa22a19750c082ff161db1702ebe96dd2a787e7Bill Wendling CreateRegList(const SmallVectorImpl<std::pair<unsigned, SMLoc> > &Regs, 420cc8d10e1a8a8555fa63f33e36e3c1ed2fb24389dMatt Beaumont-Gay SMLoc StartLoc, SMLoc EndLoc) { 4210f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling KindTy Kind = RegisterList; 4220f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling 4230f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling if (ARM::DPRRegClass.contains(Regs.front().first)) 4240f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling Kind = DPRRegisterList; 4250f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling else if (ARM::SPRRegClass.contains(Regs.front().first)) 4260f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling Kind = SPRRegisterList; 4270f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling 4280f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling ARMOperand *Op = new ARMOperand(Kind); 4295fa22a19750c082ff161db1702ebe96dd2a787e7Bill Wendling for (SmallVectorImpl<std::pair<unsigned, SMLoc> >::const_iterator 4307729e06c128be01fc564870d5ea3d22d236dddb5Bill Wendling I = Regs.begin(), E = Regs.end(); I != E; ++I) 43124d22d27640e9de954a5ac26f51a45cc96bb9135Bill Wendling Op->Registers.push_back(I->first); 432cb21d1c9fd1cf53f063183f7eb28af7fa4052ef0Bill Wendling array_pod_sort(Op->Registers.begin(), Op->Registers.end()); 433cc8d10e1a8a8555fa63f33e36e3c1ed2fb24389dMatt Beaumont-Gay Op->StartLoc = StartLoc; 434cc8d10e1a8a8555fa63f33e36e3c1ed2fb24389dMatt Beaumont-Gay Op->EndLoc = EndLoc; 4358d5acb7007decaf0c30bf4a3d4c55e5cc2cce0a7Bill Wendling return Op; 4368d5acb7007decaf0c30bf4a3d4c55e5cc2cce0a7Bill Wendling } 4378d5acb7007decaf0c30bf4a3d4c55e5cc2cce0a7Bill Wendling 4383a69756e392942bc522193f38d7f33958ed3b131Chris Lattner static ARMOperand *CreateImm(const MCExpr *Val, SMLoc S, SMLoc E) { 4393a69756e392942bc522193f38d7f33958ed3b131Chris Lattner ARMOperand *Op = new ARMOperand(Immediate); 440762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Op->Imm.Val = Val; 441762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Op->StartLoc = S; 442762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Op->EndLoc = E; 4433a69756e392942bc522193f38d7f33958ed3b131Chris Lattner return Op; 444cfe072401658bbe9336b200b79526b65c5213b74Kevin Enderby } 445cfe072401658bbe9336b200b79526b65c5213b74Kevin Enderby 4463a69756e392942bc522193f38d7f33958ed3b131Chris Lattner static ARMOperand *CreateMem(unsigned BaseRegNum, bool OffsetIsReg, 447023835d51b6dd6e3a253deefa595b0d916b605acDaniel Dunbar const MCExpr *Offset, int OffsetRegNum, 4483a69756e392942bc522193f38d7f33958ed3b131Chris Lattner bool OffsetRegShifted, enum ShiftType ShiftType, 4493a69756e392942bc522193f38d7f33958ed3b131Chris Lattner const MCExpr *ShiftAmount, bool Preindexed, 4503a69756e392942bc522193f38d7f33958ed3b131Chris Lattner bool Postindexed, bool Negative, bool Writeback, 4513a69756e392942bc522193f38d7f33958ed3b131Chris Lattner SMLoc S, SMLoc E) { 452023835d51b6dd6e3a253deefa595b0d916b605acDaniel Dunbar assert((OffsetRegNum == -1 || OffsetIsReg) && 453023835d51b6dd6e3a253deefa595b0d916b605acDaniel Dunbar "OffsetRegNum must imply OffsetIsReg!"); 454023835d51b6dd6e3a253deefa595b0d916b605acDaniel Dunbar assert((!OffsetRegShifted || OffsetIsReg) && 455023835d51b6dd6e3a253deefa595b0d916b605acDaniel Dunbar "OffsetRegShifted must imply OffsetIsReg!"); 456d3df5f32c059b3ac111f1c08571d5493aa1d48c6Daniel Dunbar assert((Offset || OffsetIsReg) && 457d3df5f32c059b3ac111f1c08571d5493aa1d48c6Daniel Dunbar "Offset must exists unless register offset is used!"); 458023835d51b6dd6e3a253deefa595b0d916b605acDaniel Dunbar assert((!ShiftAmount || (OffsetIsReg && OffsetRegShifted)) && 459023835d51b6dd6e3a253deefa595b0d916b605acDaniel Dunbar "Cannot have shift amount without shifted register offset!"); 460023835d51b6dd6e3a253deefa595b0d916b605acDaniel Dunbar assert((!Offset || !OffsetIsReg) && 461023835d51b6dd6e3a253deefa595b0d916b605acDaniel Dunbar "Cannot have expression offset and register offset!"); 462023835d51b6dd6e3a253deefa595b0d916b605acDaniel Dunbar 4633a69756e392942bc522193f38d7f33958ed3b131Chris Lattner ARMOperand *Op = new ARMOperand(Memory); 464762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Op->Mem.BaseRegNum = BaseRegNum; 465762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Op->Mem.OffsetIsReg = OffsetIsReg; 4662637dc9a252f25fd1c63acfe0606860ee7c8cfdfDaniel Dunbar if (OffsetIsReg) 4672637dc9a252f25fd1c63acfe0606860ee7c8cfdfDaniel Dunbar Op->Mem.Offset.RegNum = OffsetRegNum; 4682637dc9a252f25fd1c63acfe0606860ee7c8cfdfDaniel Dunbar else 4692637dc9a252f25fd1c63acfe0606860ee7c8cfdfDaniel Dunbar Op->Mem.Offset.Value = Offset; 470762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Op->Mem.OffsetRegShifted = OffsetRegShifted; 471762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Op->Mem.ShiftType = ShiftType; 472762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Op->Mem.ShiftAmount = ShiftAmount; 473762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Op->Mem.Preindexed = Preindexed; 474762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Op->Mem.Postindexed = Postindexed; 475762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Op->Mem.Negative = Negative; 476762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Op->Mem.Writeback = Writeback; 47716c7425cff6ac3d0a4a9c56779bdfa91b2e8e863Jim Grosbach 478762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Op->StartLoc = S; 479762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan Op->EndLoc = E; 4803a69756e392942bc522193f38d7f33958ed3b131Chris Lattner return Op; 481a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby } 482a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby}; 483a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 484a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby} // end anonymous namespace. 485a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 486fa315de8f44ddb318a7c6ff913e80d71d7c68859Daniel Dunbarvoid ARMOperand::dump(raw_ostream &OS) const { 487fa315de8f44ddb318a7c6ff913e80d71d7c68859Daniel Dunbar switch (Kind) { 488fa315de8f44ddb318a7c6ff913e80d71d7c68859Daniel Dunbar case CondCode: 4896a5c22ed89c8bb73034a70105340acf6539dc58bDaniel Dunbar OS << "<ARMCC::" << ARMCondCodeToString(getCondCode()) << ">"; 490fa315de8f44ddb318a7c6ff913e80d71d7c68859Daniel Dunbar break; 491d67641b6f804110505a69aaed5479f446bbbb34eJim Grosbach case CCOut: 492d67641b6f804110505a69aaed5479f446bbbb34eJim Grosbach OS << "<ccout " << getReg() << ">"; 493d67641b6f804110505a69aaed5479f446bbbb34eJim Grosbach break; 494fa315de8f44ddb318a7c6ff913e80d71d7c68859Daniel Dunbar case Immediate: 495fa315de8f44ddb318a7c6ff913e80d71d7c68859Daniel Dunbar getImm()->print(OS); 496fa315de8f44ddb318a7c6ff913e80d71d7c68859Daniel Dunbar break; 497fa315de8f44ddb318a7c6ff913e80d71d7c68859Daniel Dunbar case Memory: 4986ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar OS << "<memory " 4996ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar << "base:" << getMemBaseRegNum(); 5006ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar if (getMemOffsetIsReg()) { 5016ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar OS << " offset:<register " << getMemOffsetRegNum(); 5026ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar if (getMemOffsetRegShifted()) { 5036ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar OS << " offset-shift-type:" << getMemShiftType(); 5046ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar OS << " offset-shift-amount:" << *getMemShiftAmount(); 5056ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar } 5066ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar } else { 5076ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar OS << " offset:" << *getMemOffset(); 5086ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar } 5096ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar if (getMemOffsetIsReg()) 5106ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar OS << " (offset-is-reg)"; 5116ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar if (getMemPreindexed()) 5126ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar OS << " (pre-indexed)"; 5136ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar if (getMemPostindexed()) 5146ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar OS << " (post-indexed)"; 5156ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar if (getMemNegative()) 5166ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar OS << " (negative)"; 5176ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar if (getMemWriteback()) 5186ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar OS << " (writeback)"; 5196ec56204f372df73e4a27085b188a72548b867acDaniel Dunbar OS << ">"; 520fa315de8f44ddb318a7c6ff913e80d71d7c68859Daniel Dunbar break; 521fa315de8f44ddb318a7c6ff913e80d71d7c68859Daniel Dunbar case Register: 52250d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling OS << "<register " << getReg() << ">"; 523fa315de8f44ddb318a7c6ff913e80d71d7c68859Daniel Dunbar break; 5240f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling case RegisterList: 5250f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling case DPRRegisterList: 5260f6307561359fac4425a0b9e512931cf96c1ec5bBill Wendling case SPRRegisterList: { 5278d5acb7007decaf0c30bf4a3d4c55e5cc2cce0a7Bill Wendling OS << "<register_list "; 5288d5acb7007decaf0c30bf4a3d4c55e5cc2cce0a7Bill Wendling 5295fa22a19750c082ff161db1702ebe96dd2a787e7Bill Wendling const SmallVectorImpl<unsigned> &RegList = getRegList(); 5305fa22a19750c082ff161db1702ebe96dd2a787e7Bill Wendling for (SmallVectorImpl<unsigned>::const_iterator 5317729e06c128be01fc564870d5ea3d22d236dddb5Bill Wendling I = RegList.begin(), E = RegList.end(); I != E; ) { 5327729e06c128be01fc564870d5ea3d22d236dddb5Bill Wendling OS << *I; 5337729e06c128be01fc564870d5ea3d22d236dddb5Bill Wendling if (++I < E) OS << ", "; 5348d5acb7007decaf0c30bf4a3d4c55e5cc2cce0a7Bill Wendling } 5358d5acb7007decaf0c30bf4a3d4c55e5cc2cce0a7Bill Wendling 5368d5acb7007decaf0c30bf4a3d4c55e5cc2cce0a7Bill Wendling OS << ">"; 5378d5acb7007decaf0c30bf4a3d4c55e5cc2cce0a7Bill Wendling break; 5388d5acb7007decaf0c30bf4a3d4c55e5cc2cce0a7Bill Wendling } 539fa315de8f44ddb318a7c6ff913e80d71d7c68859Daniel Dunbar case Token: 540fa315de8f44ddb318a7c6ff913e80d71d7c68859Daniel Dunbar OS << "'" << getToken() << "'"; 541fa315de8f44ddb318a7c6ff913e80d71d7c68859Daniel Dunbar break; 542fa315de8f44ddb318a7c6ff913e80d71d7c68859Daniel Dunbar } 543fa315de8f44ddb318a7c6ff913e80d71d7c68859Daniel Dunbar} 5443483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar 5453483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar/// @name Auto-generated Match Functions 5463483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar/// { 5473483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar 5483483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbarstatic unsigned MatchRegisterName(StringRef Name); 5493483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar 5503483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar/// } 5513483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar 5529c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby/// Try to parse a register name. The token must be an Identifier when called, 553e5658fa15ebb733e0786a96c1852c7cf590d5b24Chris Lattner/// and if it is a register name the token is eaten and the register number is 554e5658fa15ebb733e0786a96c1852c7cf590d5b24Chris Lattner/// returned. Otherwise return -1. 5553a69756e392942bc522193f38d7f33958ed3b131Chris Lattner/// 556e5658fa15ebb733e0786a96c1852c7cf590d5b24Chris Lattnerint ARMAsmParser::TryParseRegister() { 55718b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan const AsmToken &Tok = Parser.getTok(); 558a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier"); 559d4462a5a4feae0293ca14376ff25d8bb72dd12a9Jim Grosbach 560a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby // FIXME: Validate register for the current architecture; we have to do 561a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby // validation later, so maybe there is no need for this here. 5620c9f250d54ed59108fffe5ce2f7df7bc8448915cOwen Anderson std::string upperCase = Tok.getString().str(); 5630c9f250d54ed59108fffe5ce2f7df7bc8448915cOwen Anderson std::string lowerCase = LowercaseString(upperCase); 5640c9f250d54ed59108fffe5ce2f7df7bc8448915cOwen Anderson unsigned RegNum = MatchRegisterName(lowerCase); 5650c9f250d54ed59108fffe5ce2f7df7bc8448915cOwen Anderson if (!RegNum) { 5660c9f250d54ed59108fffe5ce2f7df7bc8448915cOwen Anderson RegNum = StringSwitch<unsigned>(lowerCase) 5670c9f250d54ed59108fffe5ce2f7df7bc8448915cOwen Anderson .Case("r13", ARM::SP) 5680c9f250d54ed59108fffe5ce2f7df7bc8448915cOwen Anderson .Case("r14", ARM::LR) 5690c9f250d54ed59108fffe5ce2f7df7bc8448915cOwen Anderson .Case("r15", ARM::PC) 5700c9f250d54ed59108fffe5ce2f7df7bc8448915cOwen Anderson .Case("ip", ARM::R12) 5710c9f250d54ed59108fffe5ce2f7df7bc8448915cOwen Anderson .Default(0); 5720c9f250d54ed59108fffe5ce2f7df7bc8448915cOwen Anderson } 5730c9f250d54ed59108fffe5ce2f7df7bc8448915cOwen Anderson if (!RegNum) return -1; 5740c9f250d54ed59108fffe5ce2f7df7bc8448915cOwen Anderson 575b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); // Eat identifier token. 576e5658fa15ebb733e0786a96c1852c7cf590d5b24Chris Lattner return RegNum; 577e5658fa15ebb733e0786a96c1852c7cf590d5b24Chris Lattner} 578d4462a5a4feae0293ca14376ff25d8bb72dd12a9Jim Grosbach 579d4462a5a4feae0293ca14376ff25d8bb72dd12a9Jim Grosbach 58050d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling/// Try to parse a register name. The token must be an Identifier when called. 58150d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling/// If it's a register, an AsmOperand is created. Another AsmOperand is created 58250d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling/// if there is a "writeback". 'true' if it's not a register. 583e5658fa15ebb733e0786a96c1852c7cf590d5b24Chris Lattner/// 584e5658fa15ebb733e0786a96c1852c7cf590d5b24Chris Lattner/// TODO this is likely to change to allow different register types and or to 585e5658fa15ebb733e0786a96c1852c7cf590d5b24Chris Lattner/// parse for a specific register type. 58650d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendlingbool ARMAsmParser:: 58750d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill WendlingTryParseRegisterWithWriteBack(SmallVectorImpl<MCParsedAsmOperand*> &Operands) { 588e5658fa15ebb733e0786a96c1852c7cf590d5b24Chris Lattner SMLoc S = Parser.getTok().getLoc(); 589e5658fa15ebb733e0786a96c1852c7cf590d5b24Chris Lattner int RegNo = TryParseRegister(); 590e717610f53e0465cde198536561a3c00ce29d59fBill Wendling if (RegNo == -1) 59150d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling return true; 592d4462a5a4feae0293ca14376ff25d8bb72dd12a9Jim Grosbach 59350d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling Operands.push_back(ARMOperand::CreateReg(RegNo, S, Parser.getTok().getLoc())); 594a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 595e5658fa15ebb733e0786a96c1852c7cf590d5b24Chris Lattner const AsmToken &ExclaimTok = Parser.getTok(); 596e5658fa15ebb733e0786a96c1852c7cf590d5b24Chris Lattner if (ExclaimTok.is(AsmToken::Exclaim)) { 59750d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling Operands.push_back(ARMOperand::CreateToken(ExclaimTok.getString(), 59850d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling ExclaimTok.getLoc())); 599e5658fa15ebb733e0786a96c1852c7cf590d5b24Chris Lattner Parser.Lex(); // Eat exclaim token 60099e6d4e8392497d950d48b03f45c79b7dd131327Kevin Enderby } 60199e6d4e8392497d950d48b03f45c79b7dd131327Kevin Enderby 60250d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling return false; 603a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby} 604a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 605e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Andersonstatic int MatchMCRName(StringRef Name) { 606e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson // Use the same layout as the tablegen'erated register name matcher. Ugly, 607e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson // but efficient. 608e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson switch (Name.size()) { 609e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson default: break; 610e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson case 2: 611e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson if (Name[0] != 'p' && Name[0] != 'c') 612e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson return -1; 613e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson switch (Name[1]) { 614e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson default: return -1; 615e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson case '0': return 0; 616e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson case '1': return 1; 617e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson case '2': return 2; 618e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson case '3': return 3; 619e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson case '4': return 4; 620e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson case '5': return 5; 621e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson case '6': return 6; 622e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson case '7': return 7; 623e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson case '8': return 8; 624e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson case '9': return 9; 625e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson } 626e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson break; 627e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson case 3: 628e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson if ((Name[0] != 'p' && Name[0] != 'c') || Name[1] != '1') 629e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson return -1; 630e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson switch (Name[2]) { 631e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson default: return -1; 632e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson case '0': return 10; 633e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson case '1': return 11; 634e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson case '2': return 12; 635e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson case '3': return 13; 636e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson case '4': return 14; 637e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson case '5': return 15; 638e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson } 639e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson break; 640e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson } 641e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson 642e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson llvm_unreachable("Unhandled coprocessor operand string!"); 643e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson return -1; 644e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson} 645e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson 646e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson/// TryParseMCRName - Try to parse an MCR/MRC symbolic operand 647e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson/// name. The token must be an Identifier when called, and if it is a MCR 648e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson/// operand name, the token is eaten and the operand is added to the 649e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson/// operand list. 650e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Andersonbool ARMAsmParser:: 651e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen AndersonTryParseMCRName(SmallVectorImpl<MCParsedAsmOperand*> &Operands) { 652e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson SMLoc S = Parser.getTok().getLoc(); 653e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson const AsmToken &Tok = Parser.getTok(); 654e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier"); 655e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson 656e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson int Num = MatchMCRName(Tok.getString()); 657e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson if (Num == -1) 658e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson return true; 659e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson 660e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson Parser.Lex(); // Eat identifier token. 661e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson Operands.push_back(ARMOperand::CreateImm( 662e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson MCConstantExpr::Create(Num, getContext()), S, Parser.getTok().getLoc())); 663e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson return false; 664e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson} 665e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson 666c0ddfaa134fe60c09686906b3a8f489531653453Chris Lattner/// Parse a register list, return it if successful else return null. The first 667c0ddfaa134fe60c09686906b3a8f489531653453Chris Lattner/// token must be a '{' when called. 66850d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendlingbool ARMAsmParser:: 66950d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill WendlingParseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) { 67018b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan assert(Parser.getTok().is(AsmToken::LCurly) && 671a60f157b7c6fb60b33598fa5143ed8cb91aa5107Bill Wendling "Token is not a Left Curly Brace"); 672e717610f53e0465cde198536561a3c00ce29d59fBill Wendling SMLoc S = Parser.getTok().getLoc(); 67316c7425cff6ac3d0a4a9c56779bdfa91b2e8e863Jim Grosbach 6747729e06c128be01fc564870d5ea3d22d236dddb5Bill Wendling // Read the rest of the registers in the list. 6757729e06c128be01fc564870d5ea3d22d236dddb5Bill Wendling unsigned PrevRegNum = 0; 6765fa22a19750c082ff161db1702ebe96dd2a787e7Bill Wendling SmallVector<std::pair<unsigned, SMLoc>, 32> Registers; 677d7894f105a3c397a3d7f5c5136eee39f5865e64bKevin Enderby 6787729e06c128be01fc564870d5ea3d22d236dddb5Bill Wendling do { 679e717610f53e0465cde198536561a3c00ce29d59fBill Wendling bool IsRange = Parser.getTok().is(AsmToken::Minus); 6807729e06c128be01fc564870d5ea3d22d236dddb5Bill Wendling Parser.Lex(); // Eat non-identifier token. 681d7894f105a3c397a3d7f5c5136eee39f5865e64bKevin Enderby 68218b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan const AsmToken &RegTok = Parser.getTok(); 683d7894f105a3c397a3d7f5c5136eee39f5865e64bKevin Enderby SMLoc RegLoc = RegTok.getLoc(); 684c0ddfaa134fe60c09686906b3a8f489531653453Chris Lattner if (RegTok.isNot(AsmToken::Identifier)) { 685c0ddfaa134fe60c09686906b3a8f489531653453Chris Lattner Error(RegLoc, "register expected"); 68650d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling return true; 687c0ddfaa134fe60c09686906b3a8f489531653453Chris Lattner } 688e717610f53e0465cde198536561a3c00ce29d59fBill Wendling 6891d6a26507bfd75758f5c8a29bccf577784ead751Bill Wendling int RegNum = TryParseRegister(); 690c0ddfaa134fe60c09686906b3a8f489531653453Chris Lattner if (RegNum == -1) { 691c0ddfaa134fe60c09686906b3a8f489531653453Chris Lattner Error(RegLoc, "register expected"); 69250d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling return true; 693c0ddfaa134fe60c09686906b3a8f489531653453Chris Lattner } 694d7894f105a3c397a3d7f5c5136eee39f5865e64bKevin Enderby 695e717610f53e0465cde198536561a3c00ce29d59fBill Wendling if (IsRange) { 696e717610f53e0465cde198536561a3c00ce29d59fBill Wendling int Reg = PrevRegNum; 697e717610f53e0465cde198536561a3c00ce29d59fBill Wendling do { 698e717610f53e0465cde198536561a3c00ce29d59fBill Wendling ++Reg; 699e717610f53e0465cde198536561a3c00ce29d59fBill Wendling Registers.push_back(std::make_pair(Reg, RegLoc)); 700e717610f53e0465cde198536561a3c00ce29d59fBill Wendling } while (Reg != RegNum); 701e717610f53e0465cde198536561a3c00ce29d59fBill Wendling } else { 702e717610f53e0465cde198536561a3c00ce29d59fBill Wendling Registers.push_back(std::make_pair(RegNum, RegLoc)); 703e717610f53e0465cde198536561a3c00ce29d59fBill Wendling } 704e717610f53e0465cde198536561a3c00ce29d59fBill Wendling 705e717610f53e0465cde198536561a3c00ce29d59fBill Wendling PrevRegNum = RegNum; 7067729e06c128be01fc564870d5ea3d22d236dddb5Bill Wendling } while (Parser.getTok().is(AsmToken::Comma) || 7077729e06c128be01fc564870d5ea3d22d236dddb5Bill Wendling Parser.getTok().is(AsmToken::Minus)); 708e717610f53e0465cde198536561a3c00ce29d59fBill Wendling 709e717610f53e0465cde198536561a3c00ce29d59fBill Wendling // Process the right curly brace of the list. 71018b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan const AsmToken &RCurlyTok = Parser.getTok(); 711c0ddfaa134fe60c09686906b3a8f489531653453Chris Lattner if (RCurlyTok.isNot(AsmToken::RCurly)) { 712c0ddfaa134fe60c09686906b3a8f489531653453Chris Lattner Error(RCurlyTok.getLoc(), "'}' expected"); 71350d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling return true; 714c0ddfaa134fe60c09686906b3a8f489531653453Chris Lattner } 715d7894f105a3c397a3d7f5c5136eee39f5865e64bKevin Enderby 716e717610f53e0465cde198536561a3c00ce29d59fBill Wendling SMLoc E = RCurlyTok.getLoc(); 717e717610f53e0465cde198536561a3c00ce29d59fBill Wendling Parser.Lex(); // Eat right curly brace token. 71803f44a04e63ff77af12df33e10ffdc473609dfe2Jim Grosbach 719e717610f53e0465cde198536561a3c00ce29d59fBill Wendling // Verify the register list. 7205fa22a19750c082ff161db1702ebe96dd2a787e7Bill Wendling SmallVectorImpl<std::pair<unsigned, SMLoc> >::const_iterator 721e717610f53e0465cde198536561a3c00ce29d59fBill Wendling RI = Registers.begin(), RE = Registers.end(); 722e717610f53e0465cde198536561a3c00ce29d59fBill Wendling 7237caebff83d90a59aa74876ff887e822387f479e0Bill Wendling unsigned HighRegNum = getARMRegisterNumbering(RI->first); 7248e8b18bcfa87ff919f127b1270a6891db1c9021fBill Wendling bool EmittedWarning = false; 7258e8b18bcfa87ff919f127b1270a6891db1c9021fBill Wendling 7267caebff83d90a59aa74876ff887e822387f479e0Bill Wendling DenseMap<unsigned, bool> RegMap; 7277caebff83d90a59aa74876ff887e822387f479e0Bill Wendling RegMap[HighRegNum] = true; 7287caebff83d90a59aa74876ff887e822387f479e0Bill Wendling 729e717610f53e0465cde198536561a3c00ce29d59fBill Wendling for (++RI; RI != RE; ++RI) { 7307729e06c128be01fc564870d5ea3d22d236dddb5Bill Wendling const std::pair<unsigned, SMLoc> &RegInfo = *RI; 7317caebff83d90a59aa74876ff887e822387f479e0Bill Wendling unsigned Reg = getARMRegisterNumbering(RegInfo.first); 732e717610f53e0465cde198536561a3c00ce29d59fBill Wendling 7338e8b18bcfa87ff919f127b1270a6891db1c9021fBill Wendling if (RegMap[Reg]) { 734e717610f53e0465cde198536561a3c00ce29d59fBill Wendling Error(RegInfo.second, "register duplicated in register list"); 73550d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling return true; 736e717610f53e0465cde198536561a3c00ce29d59fBill Wendling } 737e717610f53e0465cde198536561a3c00ce29d59fBill Wendling 7388e8b18bcfa87ff919f127b1270a6891db1c9021fBill Wendling if (!EmittedWarning && Reg < HighRegNum) 739e717610f53e0465cde198536561a3c00ce29d59fBill Wendling Warning(RegInfo.second, 740e717610f53e0465cde198536561a3c00ce29d59fBill Wendling "register not in ascending order in register list"); 741e717610f53e0465cde198536561a3c00ce29d59fBill Wendling 7428e8b18bcfa87ff919f127b1270a6891db1c9021fBill Wendling RegMap[Reg] = true; 7438e8b18bcfa87ff919f127b1270a6891db1c9021fBill Wendling HighRegNum = std::max(Reg, HighRegNum); 744e717610f53e0465cde198536561a3c00ce29d59fBill Wendling } 745e717610f53e0465cde198536561a3c00ce29d59fBill Wendling 74650d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling Operands.push_back(ARMOperand::CreateRegList(Registers, S, E)); 74750d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling return false; 748d7894f105a3c397a3d7f5c5136eee39f5865e64bKevin Enderby} 749d7894f105a3c397a3d7f5c5136eee39f5865e64bKevin Enderby 750e717610f53e0465cde198536561a3c00ce29d59fBill Wendling/// Parse an ARM memory expression, return false if successful else return true 7519c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby/// or an error. The first token must be a '[' when called. 75250d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling/// 7539c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby/// TODO Only preindexing and postindexing addressing are started, unindexed 7549c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby/// with option, etc are still to do. 75550d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendlingbool ARMAsmParser:: 75650d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill WendlingParseMemory(SmallVectorImpl<MCParsedAsmOperand*> &Operands) { 757762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan SMLoc S, E; 75818b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan assert(Parser.getTok().is(AsmToken::LBrac) && 759a60f157b7c6fb60b33598fa5143ed8cb91aa5107Bill Wendling "Token is not a Left Bracket"); 760762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan S = Parser.getTok().getLoc(); 761b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); // Eat left bracket token. 762a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 76318b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan const AsmToken &BaseRegTok = Parser.getTok(); 764550276ee5bb3e115d4d81156dceffb9d3d78823aChris Lattner if (BaseRegTok.isNot(AsmToken::Identifier)) { 765550276ee5bb3e115d4d81156dceffb9d3d78823aChris Lattner Error(BaseRegTok.getLoc(), "register expected"); 76650d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling return true; 767550276ee5bb3e115d4d81156dceffb9d3d78823aChris Lattner } 768e5658fa15ebb733e0786a96c1852c7cf590d5b24Chris Lattner int BaseRegNum = TryParseRegister(); 769e5658fa15ebb733e0786a96c1852c7cf590d5b24Chris Lattner if (BaseRegNum == -1) { 770550276ee5bb3e115d4d81156dceffb9d3d78823aChris Lattner Error(BaseRegTok.getLoc(), "register expected"); 77150d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling return true; 772550276ee5bb3e115d4d81156dceffb9d3d78823aChris Lattner } 773a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 7740571093f4cf0414724674448fe6b973c0fa705b3Daniel Dunbar // The next token must either be a comma or a closing bracket. 7750571093f4cf0414724674448fe6b973c0fa705b3Daniel Dunbar const AsmToken &Tok = Parser.getTok(); 7760571093f4cf0414724674448fe6b973c0fa705b3Daniel Dunbar if (!Tok.is(AsmToken::Comma) && !Tok.is(AsmToken::RBrac)) 7770571093f4cf0414724674448fe6b973c0fa705b3Daniel Dunbar return true; 7780571093f4cf0414724674448fe6b973c0fa705b3Daniel Dunbar 779a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby bool Preindexed = false; 780a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby bool Postindexed = false; 781a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby bool OffsetIsReg = false; 782a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby bool Negative = false; 783a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby bool Writeback = false; 78405d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar ARMOperand *WBOp = 0; 78505d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar int OffsetRegNum = -1; 78605d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar bool OffsetRegShifted = false; 78705d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar enum ShiftType ShiftType = Lsl; 78805d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar const MCExpr *ShiftAmount = 0; 78905d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar const MCExpr *Offset = 0; 790a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 7919c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby // First look for preindexed address forms, that is after the "[Rn" we now 7929c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby // have to see if the next token is a comma. 793a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby if (Tok.is(AsmToken::Comma)) { 794a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby Preindexed = true; 795b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); // Eat comma token. 79605d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar 797550276ee5bb3e115d4d81156dceffb9d3d78823aChris Lattner if (ParseMemoryOffsetReg(Negative, OffsetRegShifted, ShiftType, ShiftAmount, 798550276ee5bb3e115d4d81156dceffb9d3d78823aChris Lattner Offset, OffsetIsReg, OffsetRegNum, E)) 79950d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling return true; 80018b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan const AsmToken &RBracTok = Parser.getTok(); 801550276ee5bb3e115d4d81156dceffb9d3d78823aChris Lattner if (RBracTok.isNot(AsmToken::RBrac)) { 802550276ee5bb3e115d4d81156dceffb9d3d78823aChris Lattner Error(RBracTok.getLoc(), "']' expected"); 80350d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling return true; 804550276ee5bb3e115d4d81156dceffb9d3d78823aChris Lattner } 805762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan E = RBracTok.getLoc(); 806b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); // Eat right bracket token. 807a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 80818b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan const AsmToken &ExclaimTok = Parser.getTok(); 809a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby if (ExclaimTok.is(AsmToken::Exclaim)) { 81050d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling WBOp = ARMOperand::CreateToken(ExclaimTok.getString(), 81150d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling ExclaimTok.getLoc()); 812a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby Writeback = true; 813b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); // Eat exclaim token 814a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby } 8150571093f4cf0414724674448fe6b973c0fa705b3Daniel Dunbar } else { 8160571093f4cf0414724674448fe6b973c0fa705b3Daniel Dunbar // The "[Rn" we have so far was not followed by a comma. 8170571093f4cf0414724674448fe6b973c0fa705b3Daniel Dunbar 81880eb233a3ce1a6f2e6c0847cb3e456d735e37569Jim Grosbach // If there's anything other than the right brace, this is a post indexing 81980eb233a3ce1a6f2e6c0847cb3e456d735e37569Jim Grosbach // addressing form. 820762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan E = Tok.getLoc(); 821b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); // Eat right bracket token. 822a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 82318b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan const AsmToken &NextTok = Parser.getTok(); 82403f44a04e63ff77af12df33e10ffdc473609dfe2Jim Grosbach 825e2a98dd2a4f007d5d9d3c71460cfbe0a825b8993Kevin Enderby if (NextTok.isNot(AsmToken::EndOfStatement)) { 82680eb233a3ce1a6f2e6c0847cb3e456d735e37569Jim Grosbach Postindexed = true; 82780eb233a3ce1a6f2e6c0847cb3e456d735e37569Jim Grosbach Writeback = true; 82850d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling 829550276ee5bb3e115d4d81156dceffb9d3d78823aChris Lattner if (NextTok.isNot(AsmToken::Comma)) { 830550276ee5bb3e115d4d81156dceffb9d3d78823aChris Lattner Error(NextTok.getLoc(), "',' expected"); 83150d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling return true; 832550276ee5bb3e115d4d81156dceffb9d3d78823aChris Lattner } 83350d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling 834b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); // Eat comma token. 83550d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling 836550276ee5bb3e115d4d81156dceffb9d3d78823aChris Lattner if (ParseMemoryOffsetReg(Negative, OffsetRegShifted, ShiftType, 83716c7425cff6ac3d0a4a9c56779bdfa91b2e8e863Jim Grosbach ShiftAmount, Offset, OffsetIsReg, OffsetRegNum, 838550276ee5bb3e115d4d81156dceffb9d3d78823aChris Lattner E)) 83950d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling return true; 840a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby } 84105d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar } 842e2a98dd2a4f007d5d9d3c71460cfbe0a825b8993Kevin Enderby 84305d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar // Force Offset to exist if used. 84405d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar if (!OffsetIsReg) { 84505d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar if (!Offset) 84605d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar Offset = MCConstantExpr::Create(0, getContext()); 847a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby } 84805d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar 84905d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar Operands.push_back(ARMOperand::CreateMem(BaseRegNum, OffsetIsReg, Offset, 85005d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar OffsetRegNum, OffsetRegShifted, 85105d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar ShiftType, ShiftAmount, Preindexed, 85205d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar Postindexed, Negative, Writeback, 85305d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar S, E)); 85405d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar if (WBOp) 85505d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar Operands.push_back(WBOp); 85605d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar 85705d8b71424316ad7b014adbbb316f78c5bd46861Daniel Dunbar return false; 858a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby} 859a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 8609c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby/// Parse the offset of a memory operand after we have seen "[Rn," or "[Rn]," 8619c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby/// we will parse the following (were +/- means that a plus or minus is 8629c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby/// optional): 8639c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby/// +/-Rm 8649c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby/// +/-Rm, shift 8659c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby/// #offset 8669c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby/// we return false on success or an error otherwise. 8679c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderbybool ARMAsmParser::ParseMemoryOffsetReg(bool &Negative, 868762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan bool &OffsetRegShifted, 8699c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby enum ShiftType &ShiftType, 8709c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby const MCExpr *&ShiftAmount, 8719c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby const MCExpr *&Offset, 8729c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby bool &OffsetIsReg, 873762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan int &OffsetRegNum, 874762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan SMLoc &E) { 8759c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby Negative = false; 8769c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby OffsetRegShifted = false; 8779c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby OffsetIsReg = false; 8789c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby OffsetRegNum = -1; 87918b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan const AsmToken &NextTok = Parser.getTok(); 880762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan E = NextTok.getLoc(); 8819c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby if (NextTok.is(AsmToken::Plus)) 882b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); // Eat plus token. 8839c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby else if (NextTok.is(AsmToken::Minus)) { 8849c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby Negative = true; 885b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); // Eat minus token 8869c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby } 8879c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby // See if there is a register following the "[Rn," or "[Rn]," we have so far. 88818b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan const AsmToken &OffsetRegTok = Parser.getTok(); 8899c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby if (OffsetRegTok.is(AsmToken::Identifier)) { 890e5658fa15ebb733e0786a96c1852c7cf590d5b24Chris Lattner SMLoc CurLoc = OffsetRegTok.getLoc(); 891e5658fa15ebb733e0786a96c1852c7cf590d5b24Chris Lattner OffsetRegNum = TryParseRegister(); 892e5658fa15ebb733e0786a96c1852c7cf590d5b24Chris Lattner if (OffsetRegNum != -1) { 893550276ee5bb3e115d4d81156dceffb9d3d78823aChris Lattner OffsetIsReg = true; 894e5658fa15ebb733e0786a96c1852c7cf590d5b24Chris Lattner E = CurLoc; 895762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan } 8969c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby } 897d4462a5a4feae0293ca14376ff25d8bb72dd12a9Jim Grosbach 89812f40e9a6305fe7553ebce19346cb55874073fc7Bill Wendling // If we parsed a register as the offset then there can be a shift after that. 8999c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby if (OffsetRegNum != -1) { 9009c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby // Look for a comma then a shift 90118b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan const AsmToken &Tok = Parser.getTok(); 9029c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby if (Tok.is(AsmToken::Comma)) { 903b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); // Eat comma token. 9049c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby 90518b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan const AsmToken &Tok = Parser.getTok(); 906762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan if (ParseShift(ShiftType, ShiftAmount, E)) 9073472766f9eb7d66f234c390ce1b3a8b76f0ee9ceDuncan Sands return Error(Tok.getLoc(), "shift expected"); 9089c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby OffsetRegShifted = true; 9099c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby } 9109c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby } 9119c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby else { // the "[Rn," or "[Rn,]" we have so far was not followed by "Rm" 9129c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby // Look for #offset following the "[Rn," or "[Rn]," 91318b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan const AsmToken &HashTok = Parser.getTok(); 9149c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby if (HashTok.isNot(AsmToken::Hash)) 9159c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby return Error(HashTok.getLoc(), "'#' expected"); 91616c7425cff6ac3d0a4a9c56779bdfa91b2e8e863Jim Grosbach 917b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); // Eat hash token. 9189c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby 9199c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby if (getParser().ParseExpression(Offset)) 9209c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby return true; 921762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1); 9229c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby } 9239c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby return false; 9249c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby} 9259c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby 926a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby/// ParseShift as one of these two: 927a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby/// ( lsl | lsr | asr | ror ) , # shift_amount 928a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby/// rrx 929a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby/// and returns true if it parses a shift otherwise it returns false. 93016c7425cff6ac3d0a4a9c56779bdfa91b2e8e863Jim Grosbachbool ARMAsmParser::ParseShift(ShiftType &St, const MCExpr *&ShiftAmount, 931762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan SMLoc &E) { 93218b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan const AsmToken &Tok = Parser.getTok(); 933a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby if (Tok.isNot(AsmToken::Identifier)) 934a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby return true; 93538e59891ee4417a9be2f8146ce0ba3269e38ac21Benjamin Kramer StringRef ShiftName = Tok.getString(); 936a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby if (ShiftName == "lsl" || ShiftName == "LSL") 9379c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby St = Lsl; 938a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby else if (ShiftName == "lsr" || ShiftName == "LSR") 9399c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby St = Lsr; 940a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby else if (ShiftName == "asr" || ShiftName == "ASR") 9419c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby St = Asr; 942a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby else if (ShiftName == "ror" || ShiftName == "ROR") 9439c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby St = Ror; 944a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby else if (ShiftName == "rrx" || ShiftName == "RRX") 9459c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby St = Rrx; 946a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby else 947a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby return true; 948b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); // Eat shift type token. 949a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 9509c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby // Rrx stands alone. 9519c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby if (St == Rrx) 9529c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby return false; 953a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 9549c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby // Otherwise, there must be a '#' and a shift amount. 95518b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan const AsmToken &HashTok = Parser.getTok(); 9569c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby if (HashTok.isNot(AsmToken::Hash)) 9579c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby return Error(HashTok.getLoc(), "'#' expected"); 958b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); // Eat hash token. 9599c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby 9609c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby if (getParser().ParseExpression(ShiftAmount)) 9619c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby return true; 962a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 963a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby return false; 964a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby} 965a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 9669c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby/// Parse a arm instruction operand. For now this parses the operand regardless 9679c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby/// of the mnemonic. 968e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Andersonbool ARMAsmParser::ParseOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands, 969e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson bool isMCR){ 970762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan SMLoc S, E; 971a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby switch (getLexer().getKind()) { 972146018fc6414eb2a1e67b2d8798a42a2f55ec96cBill Wendling default: 973146018fc6414eb2a1e67b2d8798a42a2f55ec96cBill Wendling Error(Parser.getTok().getLoc(), "unexpected token in operand"); 97450d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling return true; 97567b212e03b77e921e2b9780059681125a45d15a7Kevin Enderby case AsmToken::Identifier: 97650d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling if (!TryParseRegisterWithWriteBack(Operands)) 97750d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling return false; 978e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson if (isMCR && !TryParseMCRName(Operands)) 979e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson return false; 980e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson 981e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson // Fall though for the Identifier case that is not a register or a 982e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson // special name. 98367b212e03b77e921e2b9780059681125a45d15a7Kevin Enderby case AsmToken::Integer: // things like 1f and 2b as a branch targets 98467b212e03b77e921e2b9780059681125a45d15a7Kevin Enderby case AsmToken::Dot: { // . as a branch target 985515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby // This was not a register so parse other operands that start with an 986515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby // identifier (like labels) as expressions and create them as immediates. 987515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby const MCExpr *IdVal; 988762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan S = Parser.getTok().getLoc(); 989515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby if (getParser().ParseExpression(IdVal)) 99050d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling return true; 991762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1); 99250d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling Operands.push_back(ARMOperand::CreateImm(IdVal, S, E)); 99350d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling return false; 99450d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling } 995a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby case AsmToken::LBrac: 99650d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling return ParseMemory(Operands); 997d7894f105a3c397a3d7f5c5136eee39f5865e64bKevin Enderby case AsmToken::LCurly: 99850d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling return ParseRegisterList(Operands); 999d7894f105a3c397a3d7f5c5136eee39f5865e64bKevin Enderby case AsmToken::Hash: 1000079469f649d8da3923b9f747d7062c84e01cc4aeKevin Enderby // #42 -> immediate. 1001079469f649d8da3923b9f747d7062c84e01cc4aeKevin Enderby // TODO: ":lower16:" and ":upper16:" modifiers after # before immediate 1002762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan S = Parser.getTok().getLoc(); 1003b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); 1004515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby const MCExpr *ImmVal; 1005515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby if (getParser().ParseExpression(ImmVal)) 100650d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling return true; 1007762647673379dbcff6bbba6167b0b1b0d658ba9dSean Callanan E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1); 100850d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling Operands.push_back(ARMOperand::CreateImm(ImmVal, S, E)); 100950d0f5894448aff6eb02ad63da55ecf26b54aeb8Bill Wendling return false; 10109081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim case AsmToken::Colon: { 10119081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim // ":lower16:" and ":upper16:" expression prefixes 10127597212abced110723f2fee985a7d60557c092ecEvan Cheng // FIXME: Check it's an expression prefix, 10137597212abced110723f2fee985a7d60557c092ecEvan Cheng // e.g. (FOO - :lower16:BAR) isn't legal. 10147597212abced110723f2fee985a7d60557c092ecEvan Cheng ARMMCExpr::VariantKind RefKind; 10159081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim if (ParsePrefix(RefKind)) 10169081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim return true; 10179081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim 10187597212abced110723f2fee985a7d60557c092ecEvan Cheng const MCExpr *SubExprVal; 10197597212abced110723f2fee985a7d60557c092ecEvan Cheng if (getParser().ParseExpression(SubExprVal)) 10209081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim return true; 10219081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim 10227597212abced110723f2fee985a7d60557c092ecEvan Cheng const MCExpr *ExprVal = ARMMCExpr::Create(RefKind, SubExprVal, 10237597212abced110723f2fee985a7d60557c092ecEvan Cheng getContext()); 10249081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1); 10257597212abced110723f2fee985a7d60557c092ecEvan Cheng Operands.push_back(ARMOperand::CreateImm(ExprVal, S, E)); 10269081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim return false; 10279081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim } 1028a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby } 1029a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby} 1030a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 10317597212abced110723f2fee985a7d60557c092ecEvan Cheng// ParsePrefix - Parse ARM 16-bit relocations expression prefix, i.e. 10327597212abced110723f2fee985a7d60557c092ecEvan Cheng// :lower16: and :upper16:. 10337597212abced110723f2fee985a7d60557c092ecEvan Chengbool ARMAsmParser::ParsePrefix(ARMMCExpr::VariantKind &RefKind) { 10347597212abced110723f2fee985a7d60557c092ecEvan Cheng RefKind = ARMMCExpr::VK_ARM_None; 10359081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim 10369081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim // :lower16: and :upper16: modifiers 10378a8696db6b6f6e735bb9de630876af83946b45f9Jason W Kim assert(getLexer().is(AsmToken::Colon) && "expected a :"); 10389081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim Parser.Lex(); // Eat ':' 10399081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim 10409081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim if (getLexer().isNot(AsmToken::Identifier)) { 10419081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim Error(Parser.getTok().getLoc(), "expected prefix identifier in operand"); 10429081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim return true; 10439081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim } 10449081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim 10459081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim StringRef IDVal = Parser.getTok().getIdentifier(); 10469081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim if (IDVal == "lower16") { 10477597212abced110723f2fee985a7d60557c092ecEvan Cheng RefKind = ARMMCExpr::VK_ARM_LO16; 10489081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim } else if (IDVal == "upper16") { 10497597212abced110723f2fee985a7d60557c092ecEvan Cheng RefKind = ARMMCExpr::VK_ARM_HI16; 10509081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim } else { 10519081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim Error(Parser.getTok().getLoc(), "unexpected prefix in operand"); 10529081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim return true; 10539081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim } 10549081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim Parser.Lex(); 10559081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim 10569081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim if (getLexer().isNot(AsmToken::Colon)) { 10579081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim Error(Parser.getTok().getLoc(), "unexpected token after prefix"); 10589081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim return true; 10599081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim } 10609081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim Parser.Lex(); // Eat the last ':' 10619081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim return false; 10629081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim} 10639081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim 10649081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kimconst MCExpr * 10659081b4b4cf89a161246e037f4817c69de2fcdf82Jason W KimARMAsmParser::ApplyPrefixToExpr(const MCExpr *E, 10669081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim MCSymbolRefExpr::VariantKind Variant) { 10679081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim // Recurse over the given expression, rebuilding it to apply the given variant 10689081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim // to the leftmost symbol. 10699081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim if (Variant == MCSymbolRefExpr::VK_None) 10709081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim return E; 10719081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim 10729081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim switch (E->getKind()) { 10739081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim case MCExpr::Target: 10749081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim llvm_unreachable("Can't handle target expr yet"); 10759081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim case MCExpr::Constant: 10769081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim llvm_unreachable("Can't handle lower16/upper16 of constant yet"); 10779081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim 10789081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim case MCExpr::SymbolRef: { 10799081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim const MCSymbolRefExpr *SRE = cast<MCSymbolRefExpr>(E); 10809081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim 10819081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim if (SRE->getKind() != MCSymbolRefExpr::VK_None) 10829081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim return 0; 10839081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim 10849081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim return MCSymbolRefExpr::Create(&SRE->getSymbol(), Variant, getContext()); 10859081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim } 10869081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim 10879081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim case MCExpr::Unary: 10889081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim llvm_unreachable("Can't handle unary expressions yet"); 10899081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim 10909081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim case MCExpr::Binary: { 10919081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim const MCBinaryExpr *BE = cast<MCBinaryExpr>(E); 10929081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim const MCExpr *LHS = ApplyPrefixToExpr(BE->getLHS(), Variant); 10939081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim const MCExpr *RHS = BE->getRHS(); 10949081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim if (!LHS) 10959081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim return 0; 10969081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim 10979081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim return MCBinaryExpr::Create(BE->getOpcode(), LHS, RHS, getContext()); 10989081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim } 10999081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim } 11009081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim 11019081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim assert(0 && "Invalid expression kind!"); 11029081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim return 0; 11039081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim} 11049081b4b4cf89a161246e037f4817c69de2fcdf82Jason W Kim 1105352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar/// \brief Given a mnemonic, split out possible predication code and carry 1106352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar/// setting letters to form a canonical mnemonic and flags. 1107352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar// 1108badbd2fde9b8debd6265e8ece511fb01123d1d5fDaniel Dunbar// FIXME: Would be nice to autogen this. 1109352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbarstatic StringRef SplitMnemonicAndCC(StringRef Mnemonic, 1110352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar unsigned &PredicationCode, 1111352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar bool &CarrySetting) { 1112352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar PredicationCode = ARMCC::AL; 1113352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar CarrySetting = false; 1114352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar 1115badbd2fde9b8debd6265e8ece511fb01123d1d5fDaniel Dunbar // Ignore some mnemonics we know aren't predicated forms. 1116352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar // 1117352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar // FIXME: Would be nice to autogen this. 11188ab1112bdc30b8675bb12431d8b5b270da42f1b5Daniel Dunbar if (Mnemonic == "teq" || Mnemonic == "vceq" || 11198ab1112bdc30b8675bb12431d8b5b270da42f1b5Daniel Dunbar Mnemonic == "movs" || 11208ab1112bdc30b8675bb12431d8b5b270da42f1b5Daniel Dunbar Mnemonic == "svc" || 11218ab1112bdc30b8675bb12431d8b5b270da42f1b5Daniel Dunbar (Mnemonic == "mls" || Mnemonic == "smmls" || Mnemonic == "vcls" || 11228ab1112bdc30b8675bb12431d8b5b270da42f1b5Daniel Dunbar Mnemonic == "vmls" || Mnemonic == "vnmls") || 11238ab1112bdc30b8675bb12431d8b5b270da42f1b5Daniel Dunbar Mnemonic == "vacge" || Mnemonic == "vcge" || 11248ab1112bdc30b8675bb12431d8b5b270da42f1b5Daniel Dunbar Mnemonic == "vclt" || 11258ab1112bdc30b8675bb12431d8b5b270da42f1b5Daniel Dunbar Mnemonic == "vacgt" || Mnemonic == "vcgt" || 11268ab1112bdc30b8675bb12431d8b5b270da42f1b5Daniel Dunbar Mnemonic == "vcle" || 11278ab1112bdc30b8675bb12431d8b5b270da42f1b5Daniel Dunbar (Mnemonic == "smlal" || Mnemonic == "umaal" || Mnemonic == "umlal" || 11288ab1112bdc30b8675bb12431d8b5b270da42f1b5Daniel Dunbar Mnemonic == "vabal" || Mnemonic == "vmlal" || Mnemonic == "vpadal" || 11298ab1112bdc30b8675bb12431d8b5b270da42f1b5Daniel Dunbar Mnemonic == "vqdmlal")) 1130352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar return Mnemonic; 1131badbd2fde9b8debd6265e8ece511fb01123d1d5fDaniel Dunbar 1132352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar // First, split out any predication code. 1133badbd2fde9b8debd6265e8ece511fb01123d1d5fDaniel Dunbar unsigned CC = StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2)) 1134345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar .Case("eq", ARMCC::EQ) 1135345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar .Case("ne", ARMCC::NE) 1136345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar .Case("hs", ARMCC::HS) 1137345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar .Case("lo", ARMCC::LO) 1138345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar .Case("mi", ARMCC::MI) 1139345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar .Case("pl", ARMCC::PL) 1140345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar .Case("vs", ARMCC::VS) 1141345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar .Case("vc", ARMCC::VC) 1142345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar .Case("hi", ARMCC::HI) 1143345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar .Case("ls", ARMCC::LS) 1144345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar .Case("ge", ARMCC::GE) 1145345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar .Case("lt", ARMCC::LT) 1146345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar .Case("gt", ARMCC::GT) 1147345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar .Case("le", ARMCC::LE) 1148345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar .Case("al", ARMCC::AL) 1149345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar .Default(~0U); 1150badbd2fde9b8debd6265e8ece511fb01123d1d5fDaniel Dunbar if (CC != ~0U) { 1151badbd2fde9b8debd6265e8ece511fb01123d1d5fDaniel Dunbar Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 2); 1152352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar PredicationCode = CC; 115352925b60f1cd4cf810524ca05b00a207a926ab9fBill Wendling } 1154345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar 1155352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar // Next, determine if we have a carry setting bit. We explicitly ignore all 1156352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar // the instructions we know end in 's'. 1157352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar if (Mnemonic.endswith("s") && 1158352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar !(Mnemonic == "asrs" || Mnemonic == "cps" || Mnemonic == "mls" || 1159352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar Mnemonic == "movs" || Mnemonic == "mrs" || Mnemonic == "smmls" || 1160352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar Mnemonic == "vabs" || Mnemonic == "vcls" || Mnemonic == "vmls" || 1161352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar Mnemonic == "vmrs" || Mnemonic == "vnmls" || Mnemonic == "vqabs" || 1162352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar Mnemonic == "vrecps" || Mnemonic == "vrsqrts")) { 1163352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 1); 1164352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar CarrySetting = true; 1165352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar } 1166352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar 1167352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar return Mnemonic; 1168352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar} 11693771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar 11703771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar/// \brief Given a canonical mnemonic, determine if the instruction ever allows 11713771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar/// inclusion of carry set or predication code operands. 11723771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar// 11733771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar// FIXME: It would be nice to autogen this. 1174fdcee77887372dbf6589d47cc33094965b679f24Bruno Cardoso Lopesvoid ARMAsmParser:: 1175fdcee77887372dbf6589d47cc33094965b679f24Bruno Cardoso LopesGetMnemonicAcceptInfo(StringRef Mnemonic, bool &CanAcceptCarrySet, 1176fdcee77887372dbf6589d47cc33094965b679f24Bruno Cardoso Lopes bool &CanAcceptPredicationCode) { 1177fdcee77887372dbf6589d47cc33094965b679f24Bruno Cardoso Lopes bool isThumb = TM.getSubtarget<ARMSubtarget>().isThumb(); 1178fdcee77887372dbf6589d47cc33094965b679f24Bruno Cardoso Lopes 1179eb9f3f91c03c29f020ee3c25cfefe7ae2b496526Daniel Dunbar if (Mnemonic == "and" || Mnemonic == "lsl" || Mnemonic == "lsr" || 1180eb9f3f91c03c29f020ee3c25cfefe7ae2b496526Daniel Dunbar Mnemonic == "rrx" || Mnemonic == "ror" || Mnemonic == "sub" || 1181eb9f3f91c03c29f020ee3c25cfefe7ae2b496526Daniel Dunbar Mnemonic == "smull" || Mnemonic == "add" || Mnemonic == "adc" || 1182eb9f3f91c03c29f020ee3c25cfefe7ae2b496526Daniel Dunbar Mnemonic == "mul" || Mnemonic == "bic" || Mnemonic == "asr" || 1183eb9f3f91c03c29f020ee3c25cfefe7ae2b496526Daniel Dunbar Mnemonic == "umlal" || Mnemonic == "orr" || Mnemonic == "mov" || 1184eb9f3f91c03c29f020ee3c25cfefe7ae2b496526Daniel Dunbar Mnemonic == "rsb" || Mnemonic == "rsc" || Mnemonic == "orn" || 1185eb9f3f91c03c29f020ee3c25cfefe7ae2b496526Daniel Dunbar Mnemonic == "sbc" || Mnemonic == "mla" || Mnemonic == "umull" || 1186eb9f3f91c03c29f020ee3c25cfefe7ae2b496526Daniel Dunbar Mnemonic == "eor" || Mnemonic == "smlal" || Mnemonic == "mvn") { 1187eb9f3f91c03c29f020ee3c25cfefe7ae2b496526Daniel Dunbar CanAcceptCarrySet = true; 1188eb9f3f91c03c29f020ee3c25cfefe7ae2b496526Daniel Dunbar } else { 1189eb9f3f91c03c29f020ee3c25cfefe7ae2b496526Daniel Dunbar CanAcceptCarrySet = false; 1190eb9f3f91c03c29f020ee3c25cfefe7ae2b496526Daniel Dunbar } 11913771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar 1192eb9f3f91c03c29f020ee3c25cfefe7ae2b496526Daniel Dunbar if (Mnemonic == "cbnz" || Mnemonic == "setend" || Mnemonic == "dmb" || 1193eb9f3f91c03c29f020ee3c25cfefe7ae2b496526Daniel Dunbar Mnemonic == "cps" || Mnemonic == "mcr2" || Mnemonic == "it" || 1194eb9f3f91c03c29f020ee3c25cfefe7ae2b496526Daniel Dunbar Mnemonic == "mcrr2" || Mnemonic == "cbz" || Mnemonic == "cdp2" || 1195eb9f3f91c03c29f020ee3c25cfefe7ae2b496526Daniel Dunbar Mnemonic == "trap" || Mnemonic == "mrc2" || Mnemonic == "mrrc2" || 1196fdcee77887372dbf6589d47cc33094965b679f24Bruno Cardoso Lopes Mnemonic == "dsb" || Mnemonic == "movs" || 1197fdcee77887372dbf6589d47cc33094965b679f24Bruno Cardoso Lopes (isThumb && Mnemonic == "bkpt")) { 11983771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar CanAcceptPredicationCode = false; 11993771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar } else { 12003771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar CanAcceptPredicationCode = true; 12013771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar } 1202badbd2fde9b8debd6265e8ece511fb01123d1d5fDaniel Dunbar} 1203badbd2fde9b8debd6265e8ece511fb01123d1d5fDaniel Dunbar 1204badbd2fde9b8debd6265e8ece511fb01123d1d5fDaniel Dunbar/// Parse an arm instruction mnemonic followed by its operands. 1205badbd2fde9b8debd6265e8ece511fb01123d1d5fDaniel Dunbarbool ARMAsmParser::ParseInstruction(StringRef Name, SMLoc NameLoc, 1206badbd2fde9b8debd6265e8ece511fb01123d1d5fDaniel Dunbar SmallVectorImpl<MCParsedAsmOperand*> &Operands) { 1207badbd2fde9b8debd6265e8ece511fb01123d1d5fDaniel Dunbar // Create the leading tokens for the mnemonic, split by '.' characters. 1208badbd2fde9b8debd6265e8ece511fb01123d1d5fDaniel Dunbar size_t Start = 0, Next = Name.find('.'); 1209badbd2fde9b8debd6265e8ece511fb01123d1d5fDaniel Dunbar StringRef Head = Name.slice(Start, Next); 1210badbd2fde9b8debd6265e8ece511fb01123d1d5fDaniel Dunbar 1211352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar // Split out the predication code and carry setting flag from the mnemonic. 1212352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar unsigned PredicationCode; 1213352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar bool CarrySetting; 1214352e148cbe6498a6dd31b7fc71df7cd23c4b4d10Daniel Dunbar Head = SplitMnemonicAndCC(Head, PredicationCode, CarrySetting); 1215badbd2fde9b8debd6265e8ece511fb01123d1d5fDaniel Dunbar 12163a69756e392942bc522193f38d7f33958ed3b131Chris Lattner Operands.push_back(ARMOperand::CreateToken(Head, NameLoc)); 12179717fa9f29696bca45ddfdf206b1c382c8b40b78Bill Wendling 12183771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar // Next, add the CCOut and ConditionCode operands, if needed. 12193771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar // 12203771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar // For mnemonics which can ever incorporate a carry setting bit or predication 12213771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar // code, our matching model involves us always generating CCOut and 12223771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar // ConditionCode operands to match the mnemonic "as written" and then we let 12233771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar // the matcher deal with finding the right instruction or generating an 12243771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar // appropriate error. 12253771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar bool CanAcceptCarrySet, CanAcceptPredicationCode; 12263771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar GetMnemonicAcceptInfo(Head, CanAcceptCarrySet, CanAcceptPredicationCode); 12273771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar 12283771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar // Add the carry setting operand, if necessary. 12293771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar // 12303771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar // FIXME: It would be awesome if we could somehow invent a location such that 12313771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar // match errors on this operand would print a nice diagnostic about how the 12323771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar // 's' character in the mnemonic resulted in a CCOut operand. 12333771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar if (CanAcceptCarrySet) { 12343771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar Operands.push_back(ARMOperand::CreateCCOut(CarrySetting ? ARM::CPSR : 0, 12353771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar NameLoc)); 12363771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar } else { 12373771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar // This mnemonic can't ever accept a carry set, but the user wrote one (or 12383771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar // misspelled another mnemonic). 12393771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar 12403771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar // FIXME: Issue a nice error. 12413771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar } 12423771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar 12433771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar // Add the predication code operand, if necessary. 12443771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar if (CanAcceptPredicationCode) { 12453771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar Operands.push_back(ARMOperand::CreateCondCode( 12463771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar ARMCC::CondCodes(PredicationCode), NameLoc)); 12473771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar } else { 12483771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar // This mnemonic can't ever accept a predication code, but the user wrote 12493771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar // one (or misspelled another mnemonic). 12503771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar 12513771dd041f6a68bef08b6f685a41d1d54f4e8b9dDaniel Dunbar // FIXME: Issue a nice error. 1252badbd2fde9b8debd6265e8ece511fb01123d1d5fDaniel Dunbar } 1253345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar 1254345a9a6269318c96f333c0492b23733e29d952dfDaniel Dunbar // Add the remaining tokens in the mnemonic. 12555747b13af801d5af7cd5827c07c6a59e981bdb1aDaniel Dunbar while (Next != StringRef::npos) { 12565747b13af801d5af7cd5827c07c6a59e981bdb1aDaniel Dunbar Start = Next; 12575747b13af801d5af7cd5827c07c6a59e981bdb1aDaniel Dunbar Next = Name.find('.', Start + 1); 12585747b13af801d5af7cd5827c07c6a59e981bdb1aDaniel Dunbar Head = Name.slice(Start, Next); 1259a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 12603a69756e392942bc522193f38d7f33958ed3b131Chris Lattner Operands.push_back(ARMOperand::CreateToken(Head, NameLoc)); 12615747b13af801d5af7cd5827c07c6a59e981bdb1aDaniel Dunbar } 12625747b13af801d5af7cd5827c07c6a59e981bdb1aDaniel Dunbar 1263e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson bool isMCR = (Head == "mcr" || Head == "mcr2" || 1264e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson Head == "mcrr" || Head == "mcrr2" || 1265e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson Head == "mrc" || Head == "mrc2" || 1266e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson Head == "mrrc" || Head == "mrrc2"); 1267e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson 12685747b13af801d5af7cd5827c07c6a59e981bdb1aDaniel Dunbar // Read the remaining operands. 12695747b13af801d5af7cd5827c07c6a59e981bdb1aDaniel Dunbar if (getLexer().isNot(AsmToken::EndOfStatement)) { 1270a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby // Read the first operand. 1271e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson if (ParseOperand(Operands, isMCR)) { 1272cbf8a98c7c652e96967623c80cb945fef001b090Chris Lattner Parser.EatToEndOfStatement(); 1273cbf8a98c7c652e96967623c80cb945fef001b090Chris Lattner return true; 1274cbf8a98c7c652e96967623c80cb945fef001b090Chris Lattner } 1275a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 1276a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby while (getLexer().is(AsmToken::Comma)) { 1277b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); // Eat the comma. 1278a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby 1279a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby // Parse and remember the operand. 1280e4e5e2aae7e1e0e84877061432e7b981a360a77dOwen Anderson if (ParseOperand(Operands, isMCR)) { 1281cbf8a98c7c652e96967623c80cb945fef001b090Chris Lattner Parser.EatToEndOfStatement(); 1282cbf8a98c7c652e96967623c80cb945fef001b090Chris Lattner return true; 1283cbf8a98c7c652e96967623c80cb945fef001b090Chris Lattner } 1284a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby } 1285a7ba3a81c008142a91d799e2ec3152cfd6bbb15fKevin Enderby } 128616c7425cff6ac3d0a4a9c56779bdfa91b2e8e863Jim Grosbach 1287cbf8a98c7c652e96967623c80cb945fef001b090Chris Lattner if (getLexer().isNot(AsmToken::EndOfStatement)) { 1288cbf8a98c7c652e96967623c80cb945fef001b090Chris Lattner Parser.EatToEndOfStatement(); 128934e53140c2cc02ce4c9d060e48302576d3962e1cChris Lattner return TokError("unexpected token in argument list"); 1290cbf8a98c7c652e96967623c80cb945fef001b090Chris Lattner } 1291146018fc6414eb2a1e67b2d8798a42a2f55ec96cBill Wendling 129234e53140c2cc02ce4c9d060e48302576d3962e1cChris Lattner Parser.Lex(); // Consume the EndOfStatement 12939898671a74d3fc924347e679c45edaa685b3fe6eChris Lattner return false; 1294ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby} 1295ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby 1296fa42fad8bf7b0058ba031a275e1e8ce53b2cb1adChris Lattnerbool ARMAsmParser:: 1297fa42fad8bf7b0058ba031a275e1e8ce53b2cb1adChris LattnerMatchAndEmitInstruction(SMLoc IDLoc, 1298fa42fad8bf7b0058ba031a275e1e8ce53b2cb1adChris Lattner SmallVectorImpl<MCParsedAsmOperand*> &Operands, 1299fa42fad8bf7b0058ba031a275e1e8ce53b2cb1adChris Lattner MCStreamer &Out) { 1300fa42fad8bf7b0058ba031a275e1e8ce53b2cb1adChris Lattner MCInst Inst; 1301fa42fad8bf7b0058ba031a275e1e8ce53b2cb1adChris Lattner unsigned ErrorInfo; 1302193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby MatchResultTy MatchResult, MatchResult2; 1303193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby MatchResult = MatchInstructionImpl(Operands, Inst, ErrorInfo); 1304193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby if (MatchResult != Match_Success) { 1305193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby // If we get a Match_InvalidOperand it might be some arithmetic instruction 1306193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby // that does not update the condition codes. So try adding a CCOut operand 1307193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby // with a value of reg0. 1308193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby if (MatchResult == Match_InvalidOperand) { 1309193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby Operands.insert(Operands.begin() + 1, 1310193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby ARMOperand::CreateCCOut(0, 1311193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby ((ARMOperand*)Operands[0])->getStartLoc())); 1312193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby MatchResult2 = MatchInstructionImpl(Operands, Inst, ErrorInfo); 1313193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby if (MatchResult2 == Match_Success) 1314193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby MatchResult = Match_Success; 131544a9e8f869dd9d04a04eb556ff0ff4a1039d371fKevin Enderby else { 131644a9e8f869dd9d04a04eb556ff0ff4a1039d371fKevin Enderby ARMOperand *CCOut = ((ARMOperand*)Operands[1]); 1317193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby Operands.erase(Operands.begin() + 1); 131844a9e8f869dd9d04a04eb556ff0ff4a1039d371fKevin Enderby delete CCOut; 131944a9e8f869dd9d04a04eb556ff0ff4a1039d371fKevin Enderby } 1320193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby } 1321193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby // If we get a Match_MnemonicFail it might be some arithmetic instruction 1322193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby // that updates the condition codes if it ends in 's'. So see if the 1323193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby // mnemonic ends in 's' and if so try removing the 's' and adding a CCOut 1324193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby // operand with a value of CPSR. 1325193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby else if(MatchResult == Match_MnemonicFail) { 1326193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby // Get the instruction mnemonic, which is the first token. 1327193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby StringRef Mnemonic = ((ARMOperand*)Operands[0])->getToken(); 1328193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby if (Mnemonic.substr(Mnemonic.size()-1) == "s") { 1329193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby // removed the 's' from the mnemonic for matching. 1330193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby StringRef MnemonicNoS = Mnemonic.slice(0, Mnemonic.size() - 1); 1331193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby SMLoc NameLoc = ((ARMOperand*)Operands[0])->getStartLoc(); 133244a9e8f869dd9d04a04eb556ff0ff4a1039d371fKevin Enderby ARMOperand *OldMnemonic = ((ARMOperand*)Operands[0]); 133344a9e8f869dd9d04a04eb556ff0ff4a1039d371fKevin Enderby Operands.erase(Operands.begin()); 133444a9e8f869dd9d04a04eb556ff0ff4a1039d371fKevin Enderby delete OldMnemonic; 133544a9e8f869dd9d04a04eb556ff0ff4a1039d371fKevin Enderby Operands.insert(Operands.begin(), 1336193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby ARMOperand::CreateToken(MnemonicNoS, NameLoc)); 1337193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby Operands.insert(Operands.begin() + 1, 1338193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby ARMOperand::CreateCCOut(ARM::CPSR, NameLoc)); 1339193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby MatchResult2 = MatchInstructionImpl(Operands, Inst, ErrorInfo); 1340193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby if (MatchResult2 == Match_Success) 1341193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby MatchResult = Match_Success; 1342193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby else { 134344a9e8f869dd9d04a04eb556ff0ff4a1039d371fKevin Enderby ARMOperand *OldMnemonic = ((ARMOperand*)Operands[0]); 134444a9e8f869dd9d04a04eb556ff0ff4a1039d371fKevin Enderby Operands.erase(Operands.begin()); 134544a9e8f869dd9d04a04eb556ff0ff4a1039d371fKevin Enderby delete OldMnemonic; 134644a9e8f869dd9d04a04eb556ff0ff4a1039d371fKevin Enderby Operands.insert(Operands.begin(), 1347193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby ARMOperand::CreateToken(Mnemonic, NameLoc)); 134844a9e8f869dd9d04a04eb556ff0ff4a1039d371fKevin Enderby ARMOperand *CCOut = ((ARMOperand*)Operands[1]); 134944a9e8f869dd9d04a04eb556ff0ff4a1039d371fKevin Enderby Operands.erase(Operands.begin() + 1); 135044a9e8f869dd9d04a04eb556ff0ff4a1039d371fKevin Enderby delete CCOut; 1351193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby } 1352193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby } 1353193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby } 1354193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby } 1355193c3acbe5cdb60767d114016970e898c7502d7aKevin Enderby switch (MatchResult) { 1356e73d4f8ec7af68fc0f67811e4e004562ab538014Chris Lattner case Match_Success: 1357fa42fad8bf7b0058ba031a275e1e8ce53b2cb1adChris Lattner Out.EmitInstruction(Inst); 1358fa42fad8bf7b0058ba031a275e1e8ce53b2cb1adChris Lattner return false; 1359e73d4f8ec7af68fc0f67811e4e004562ab538014Chris Lattner case Match_MissingFeature: 1360e73d4f8ec7af68fc0f67811e4e004562ab538014Chris Lattner Error(IDLoc, "instruction requires a CPU feature not currently enabled"); 1361e73d4f8ec7af68fc0f67811e4e004562ab538014Chris Lattner return true; 1362e73d4f8ec7af68fc0f67811e4e004562ab538014Chris Lattner case Match_InvalidOperand: { 1363e73d4f8ec7af68fc0f67811e4e004562ab538014Chris Lattner SMLoc ErrorLoc = IDLoc; 1364e73d4f8ec7af68fc0f67811e4e004562ab538014Chris Lattner if (ErrorInfo != ~0U) { 1365e73d4f8ec7af68fc0f67811e4e004562ab538014Chris Lattner if (ErrorInfo >= Operands.size()) 1366e73d4f8ec7af68fc0f67811e4e004562ab538014Chris Lattner return Error(IDLoc, "too few operands for instruction"); 136716c7425cff6ac3d0a4a9c56779bdfa91b2e8e863Jim Grosbach 1368e73d4f8ec7af68fc0f67811e4e004562ab538014Chris Lattner ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc(); 1369e73d4f8ec7af68fc0f67811e4e004562ab538014Chris Lattner if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc; 1370e73d4f8ec7af68fc0f67811e4e004562ab538014Chris Lattner } 137116c7425cff6ac3d0a4a9c56779bdfa91b2e8e863Jim Grosbach 1372e73d4f8ec7af68fc0f67811e4e004562ab538014Chris Lattner return Error(ErrorLoc, "invalid operand for instruction"); 1373e73d4f8ec7af68fc0f67811e4e004562ab538014Chris Lattner } 1374e73d4f8ec7af68fc0f67811e4e004562ab538014Chris Lattner case Match_MnemonicFail: 1375e73d4f8ec7af68fc0f67811e4e004562ab538014Chris Lattner return Error(IDLoc, "unrecognized instruction mnemonic"); 1376fa42fad8bf7b0058ba031a275e1e8ce53b2cb1adChris Lattner } 137716c7425cff6ac3d0a4a9c56779bdfa91b2e8e863Jim Grosbach 1378c223e2b10b4753a63dfe7e6980c650b179139983Eric Christopher llvm_unreachable("Implement any new match types added!"); 1379146018fc6414eb2a1e67b2d8798a42a2f55ec96cBill Wendling return true; 1380fa42fad8bf7b0058ba031a275e1e8ce53b2cb1adChris Lattner} 1381fa42fad8bf7b0058ba031a275e1e8ce53b2cb1adChris Lattner 1382515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby/// ParseDirective parses the arm specific directives 1383ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderbybool ARMAsmParser::ParseDirective(AsmToken DirectiveID) { 1384ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby StringRef IDVal = DirectiveID.getIdentifier(); 1385ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby if (IDVal == ".word") 1386ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby return ParseDirectiveWord(4, DirectiveID.getLoc()); 1387515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby else if (IDVal == ".thumb") 1388515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby return ParseDirectiveThumb(DirectiveID.getLoc()); 1389515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby else if (IDVal == ".thumb_func") 1390515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby return ParseDirectiveThumbFunc(DirectiveID.getLoc()); 1391515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby else if (IDVal == ".code") 1392515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby return ParseDirectiveCode(DirectiveID.getLoc()); 1393515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby else if (IDVal == ".syntax") 1394515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby return ParseDirectiveSyntax(DirectiveID.getLoc()); 1395ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby return true; 1396ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby} 1397ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby 1398ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby/// ParseDirectiveWord 1399ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby/// ::= .word [ expression (, expression)* ] 1400ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderbybool ARMAsmParser::ParseDirectiveWord(unsigned Size, SMLoc L) { 1401ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby if (getLexer().isNot(AsmToken::EndOfStatement)) { 1402ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby for (;;) { 1403ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby const MCExpr *Value; 1404ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby if (getParser().ParseExpression(Value)) 1405ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby return true; 1406ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby 1407aaec205b87637cd0d59d4f11630db603686eb73dChris Lattner getParser().getStreamer().EmitValue(Value, Size, 0/*addrspace*/); 1408ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby 1409ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby if (getLexer().is(AsmToken::EndOfStatement)) 1410ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby break; 141116c7425cff6ac3d0a4a9c56779bdfa91b2e8e863Jim Grosbach 1412ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby // FIXME: Improve diagnostic. 1413ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby if (getLexer().isNot(AsmToken::Comma)) 1414ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby return Error(L, "unexpected token in directive"); 1415b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); 1416ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby } 1417ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby } 1418ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby 1419b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); 1420ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby return false; 1421ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby} 1422ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby 1423515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby/// ParseDirectiveThumb 1424515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby/// ::= .thumb 1425515d509360d81946247fd0f937034cdf1f237c72Kevin Enderbybool ARMAsmParser::ParseDirectiveThumb(SMLoc L) { 1426515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby if (getLexer().isNot(AsmToken::EndOfStatement)) 1427515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby return Error(L, "unexpected token in directive"); 1428b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); 1429515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby 1430515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby // TODO: set thumb mode 1431515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby // TODO: tell the MC streamer the mode 1432515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby // getParser().getStreamer().Emit???(); 1433515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby return false; 1434515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby} 1435515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby 1436515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby/// ParseDirectiveThumbFunc 1437515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby/// ::= .thumbfunc symbol_name 1438515d509360d81946247fd0f937034cdf1f237c72Kevin Enderbybool ARMAsmParser::ParseDirectiveThumbFunc(SMLoc L) { 143918b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan const AsmToken &Tok = Parser.getTok(); 1440515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby if (Tok.isNot(AsmToken::Identifier) && Tok.isNot(AsmToken::String)) 144183c4018fcca18fe9c281c3943fc58a17621636c4Jim Grosbach return Error(L, "unexpected token in .thumb_func directive"); 1442642fc9c24ba7c43a4a962c6c05cfffce713d7de7Jim Grosbach StringRef Name = Tok.getString(); 1443b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); // Consume the identifier token. 1444515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby if (getLexer().isNot(AsmToken::EndOfStatement)) 1445515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby return Error(L, "unexpected token in directive"); 1446b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); 1447515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby 1448642fc9c24ba7c43a4a962c6c05cfffce713d7de7Jim Grosbach // Mark symbol as a thumb symbol. 1449642fc9c24ba7c43a4a962c6c05cfffce713d7de7Jim Grosbach MCSymbol *Func = getParser().getContext().GetOrCreateSymbol(Name); 1450642fc9c24ba7c43a4a962c6c05cfffce713d7de7Jim Grosbach getParser().getStreamer().EmitThumbFunc(Func); 1451515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby return false; 1452515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby} 1453515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby 1454515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby/// ParseDirectiveSyntax 1455515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby/// ::= .syntax unified | divided 1456515d509360d81946247fd0f937034cdf1f237c72Kevin Enderbybool ARMAsmParser::ParseDirectiveSyntax(SMLoc L) { 145718b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan const AsmToken &Tok = Parser.getTok(); 1458515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby if (Tok.isNot(AsmToken::Identifier)) 1459515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby return Error(L, "unexpected token in .syntax directive"); 146038e59891ee4417a9be2f8146ce0ba3269e38ac21Benjamin Kramer StringRef Mode = Tok.getString(); 146158c86910b31c569a5709466c82e2fabae2014a56Duncan Sands if (Mode == "unified" || Mode == "UNIFIED") 1462b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); 146358c86910b31c569a5709466c82e2fabae2014a56Duncan Sands else if (Mode == "divided" || Mode == "DIVIDED") 1464b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); 1465515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby else 1466515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby return Error(L, "unrecognized syntax mode in .syntax directive"); 1467515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby 1468515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby if (getLexer().isNot(AsmToken::EndOfStatement)) 146918b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan return Error(Parser.getTok().getLoc(), "unexpected token in directive"); 1470b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); 1471515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby 1472515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby // TODO tell the MC streamer the mode 1473515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby // getParser().getStreamer().Emit???(); 1474515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby return false; 1475515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby} 1476515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby 1477515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby/// ParseDirectiveCode 1478515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby/// ::= .code 16 | 32 1479515d509360d81946247fd0f937034cdf1f237c72Kevin Enderbybool ARMAsmParser::ParseDirectiveCode(SMLoc L) { 148018b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan const AsmToken &Tok = Parser.getTok(); 1481515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby if (Tok.isNot(AsmToken::Integer)) 1482515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby return Error(L, "unexpected token in .code directive"); 148318b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan int64_t Val = Parser.getTok().getIntVal(); 148458c86910b31c569a5709466c82e2fabae2014a56Duncan Sands if (Val == 16) 1485b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); 148658c86910b31c569a5709466c82e2fabae2014a56Duncan Sands else if (Val == 32) 1487b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); 1488515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby else 1489515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby return Error(L, "invalid operand to .code directive"); 1490515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby 1491515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby if (getLexer().isNot(AsmToken::EndOfStatement)) 149218b8323de70e3461b5d035e3f9e4f6dfaf5e674bSean Callanan return Error(Parser.getTok().getLoc(), "unexpected token in directive"); 1493b9a25b7744ed12b80031426978decce3d4cebbd7Sean Callanan Parser.Lex(); 1494515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby 1495fef9ff492206330ff0a5b94cec5ac1455b28df88Kevin Enderby // FIXME: We need to be able switch subtargets at this point so that 1496fef9ff492206330ff0a5b94cec5ac1455b28df88Kevin Enderby // MatchInstructionImpl() will work when it gets the AvailableFeatures which 1497fef9ff492206330ff0a5b94cec5ac1455b28df88Kevin Enderby // includes Feature_IsThumb or not to match the right instructions. This is 1498fef9ff492206330ff0a5b94cec5ac1455b28df88Kevin Enderby // blocked on the FIXME in llvm-mc.cpp when creating the TargetMachine. 1499fef9ff492206330ff0a5b94cec5ac1455b28df88Kevin Enderby if (Val == 16){ 1500fef9ff492206330ff0a5b94cec5ac1455b28df88Kevin Enderby assert(TM.getSubtarget<ARMSubtarget>().isThumb() && 1501fef9ff492206330ff0a5b94cec5ac1455b28df88Kevin Enderby "switching between arm/thumb not yet suppported via .code 16)"); 15022a301704ea76535f0485d5c3b75664b323249bdbJim Grosbach getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16); 1503fef9ff492206330ff0a5b94cec5ac1455b28df88Kevin Enderby } 1504fef9ff492206330ff0a5b94cec5ac1455b28df88Kevin Enderby else{ 1505fef9ff492206330ff0a5b94cec5ac1455b28df88Kevin Enderby assert(!TM.getSubtarget<ARMSubtarget>().isThumb() && 1506fef9ff492206330ff0a5b94cec5ac1455b28df88Kevin Enderby "switching between thumb/arm not yet suppported via .code 32)"); 15072a301704ea76535f0485d5c3b75664b323249bdbJim Grosbach getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32); 1508fef9ff492206330ff0a5b94cec5ac1455b28df88Kevin Enderby } 15092a301704ea76535f0485d5c3b75664b323249bdbJim Grosbach 1510515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby return false; 1511515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby} 1512515d509360d81946247fd0f937034cdf1f237c72Kevin Enderby 151390b7097f92f6b4f6b27cd88c7c88a21b777f5795Sean Callananextern "C" void LLVMInitializeARMAsmLexer(); 151490b7097f92f6b4f6b27cd88c7c88a21b777f5795Sean Callanan 15159c41fa87eac369d84f8bfc2245084cd39f281ee4Kevin Enderby/// Force static initialization. 1516ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderbyextern "C" void LLVMInitializeARMAsmParser() { 1517ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby RegisterAsmParser<ARMAsmParser> X(TheARMTarget); 1518ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby RegisterAsmParser<ARMAsmParser> Y(TheThumbTarget); 151990b7097f92f6b4f6b27cd88c7c88a21b777f5795Sean Callanan LLVMInitializeARMAsmLexer(); 1520ca9c42c4daa8f4ffd9411e11c05fb53ee1bfaf70Kevin Enderby} 15213483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar 15220692ee676f8cdad25ad09a868bf597af4115c9d9Chris Lattner#define GET_REGISTER_MATCHER 15230692ee676f8cdad25ad09a868bf597af4115c9d9Chris Lattner#define GET_MATCHER_IMPLEMENTATION 15243483acabf012b847b13b969ebd9ce5c4d16d9eb7Daniel Dunbar#include "ARMGenAsmMatcher.inc" 1525