diff options
Diffstat (limited to 'contrib/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp')
| -rw-r--r-- | contrib/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp | 844 |
1 files changed, 643 insertions, 201 deletions
diff --git a/contrib/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp b/contrib/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp index 67b5248..c403f21 100644 --- a/contrib/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp +++ b/contrib/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp @@ -13,11 +13,11 @@ #include "llvm/MC/MCContext.h" #include "llvm/MC/MCExpr.h" #include "llvm/MC/MCInst.h" +#include "llvm/MC/MCParser/MCAsmLexer.h" +#include "llvm/MC/MCParser/MCParsedAsmOperand.h" #include "llvm/MC/MCStreamer.h" #include "llvm/MC/MCSubtargetInfo.h" #include "llvm/MC/MCSymbol.h" -#include "llvm/MC/MCParser/MCAsmLexer.h" -#include "llvm/MC/MCParser/MCParsedAsmOperand.h" #include "llvm/MC/MCTargetAsmParser.h" #include "llvm/Support/TargetRegistry.h" @@ -84,15 +84,33 @@ class MipsAsmParser : public MCTargetAsmParser { bool ParseDirective(AsmToken DirectiveID); MipsAsmParser::OperandMatchResultTy - parseMemOperand(SmallVectorImpl<MCParsedAsmOperand*>&); + parseMemOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands); + + MipsAsmParser::OperandMatchResultTy + parseCPURegs(SmallVectorImpl<MCParsedAsmOperand*> &Operands); + + MipsAsmParser::OperandMatchResultTy + parseCPU64Regs(SmallVectorImpl<MCParsedAsmOperand*> &Operands); + + MipsAsmParser::OperandMatchResultTy + parseHWRegs(SmallVectorImpl<MCParsedAsmOperand*> &Operands); + + MipsAsmParser::OperandMatchResultTy + parseHW64Regs(SmallVectorImpl<MCParsedAsmOperand*> &Operands); + + MipsAsmParser::OperandMatchResultTy + parseCCRRegs(SmallVectorImpl<MCParsedAsmOperand*> &Operands); + + bool searchSymbolAlias(SmallVectorImpl<MCParsedAsmOperand*> &Operands, + unsigned RegisterClass); bool ParseOperand(SmallVectorImpl<MCParsedAsmOperand*> &, StringRef Mnemonic); - int tryParseRegister(StringRef Mnemonic); + int tryParseRegister(bool is64BitReg); bool tryParseRegisterOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands, - StringRef Mnemonic); + bool is64BitReg); bool needsExpansion(MCInst &Inst); @@ -104,6 +122,9 @@ class MipsAsmParser : public MCTargetAsmParser { SmallVectorImpl<MCInst> &Instructions); void expandLoadAddressReg(MCInst &Inst, SMLoc IDLoc, SmallVectorImpl<MCInst> &Instructions); + void expandMemInst(MCInst &Inst, SMLoc IDLoc, + SmallVectorImpl<MCInst> &Instructions, + bool isLoad,bool isImmOpnd); bool reportParseError(StringRef ErrorMsg); bool parseMemOffset(const MCExpr *&Res); @@ -118,6 +139,10 @@ class MipsAsmParser : public MCTargetAsmParser { bool parseSetReorderDirective(); bool parseSetNoReorderDirective(); + bool parseSetAssignment(); + + bool parseDirectiveWord(unsigned Size, SMLoc L); + MCSymbolRefExpr::VariantKind getVariantKind(StringRef Symbol); bool isMips64() const { @@ -128,9 +153,11 @@ class MipsAsmParser : public MCTargetAsmParser { return (STI.getFeatureBits() & Mips::FeatureFP64Bit) != 0; } - int matchRegisterName(StringRef Symbol); + int matchRegisterName(StringRef Symbol, bool is64BitReg); - int matchRegisterByNumber(unsigned RegNum, StringRef Mnemonic); + int matchCPURegisterName(StringRef Symbol); + + int matchRegisterByNumber(unsigned RegNum, unsigned RegClass); void setFpFormat(FpFormatTy Format) { FpFormat = Format; @@ -146,7 +173,10 @@ class MipsAsmParser : public MCTargetAsmParser { unsigned getReg(int RC,int RegNo); - unsigned getATReg(); + int getATReg(); + + bool processInstruction(MCInst &Inst, SMLoc IDLoc, + SmallVectorImpl<MCInst> &Instructions); public: MipsAsmParser(MCSubtargetInfo &sti, MCAsmParser &parser) : MCTargetAsmParser(), STI(sti), Parser(parser) { @@ -166,6 +196,20 @@ namespace { /// instruction. class MipsOperand : public MCParsedAsmOperand { +public: + enum RegisterKind { + Kind_None, + Kind_CPURegs, + Kind_CPU64Regs, + Kind_HWRegs, + Kind_HW64Regs, + Kind_FGR32Regs, + Kind_FGR64Regs, + Kind_AFGR64Regs, + Kind_CCRRegs + }; + +private: enum KindTy { k_CondCode, k_CoprocNum, @@ -178,24 +222,30 @@ class MipsOperand : public MCParsedAsmOperand { MipsOperand(KindTy K) : MCParsedAsmOperand(), Kind(K) {} + struct Token { + const char *Data; + unsigned Length; + }; + + struct RegOp { + unsigned RegNum; + RegisterKind Kind; + }; + + struct ImmOp { + const MCExpr *Val; + }; + + struct MemOp { + unsigned Base; + const MCExpr *Off; + }; + union { - struct { - const char *Data; - unsigned Length; - } Tok; - - struct { - unsigned RegNum; - } Reg; - - struct { - const MCExpr *Val; - } Imm; - - struct { - unsigned Base; - const MCExpr *Off; - } Mem; + struct Token Tok; + struct RegOp Reg; + struct ImmOp Imm; + struct MemOp Mem; }; SMLoc StartLoc, EndLoc; @@ -246,6 +296,11 @@ public: return Reg.RegNum; } + void setRegKind(RegisterKind RegKind) { + assert((Kind == k_Register) && "Invalid access!"); + Reg.Kind = RegKind; + } + const MCExpr *getImm() const { assert((Kind == k_Immediate) && "Invalid access!"); return Imm.Val; @@ -296,6 +351,45 @@ public: return Op; } + bool isCPURegsAsm() const { + return Kind == k_Register && Reg.Kind == Kind_CPURegs; + } + void addCPURegsAsmOperands(MCInst &Inst, unsigned N) const { + Inst.addOperand(MCOperand::CreateReg(Reg.RegNum)); + } + + bool isCPU64RegsAsm() const { + return Kind == k_Register && Reg.Kind == Kind_CPU64Regs; + } + void addCPU64RegsAsmOperands(MCInst &Inst, unsigned N) const { + Inst.addOperand(MCOperand::CreateReg(Reg.RegNum)); + } + + bool isHWRegsAsm() const { + assert((Kind == k_Register) && "Invalid access!"); + return Reg.Kind == Kind_HWRegs; + } + void addHWRegsAsmOperands(MCInst &Inst, unsigned N) const { + Inst.addOperand(MCOperand::CreateReg(Reg.RegNum)); + } + + bool isHW64RegsAsm() const { + assert((Kind == k_Register) && "Invalid access!"); + return Reg.Kind == Kind_HW64Regs; + } + void addHW64RegsAsmOperands(MCInst &Inst, unsigned N) const { + Inst.addOperand(MCOperand::CreateReg(Reg.RegNum)); + } + + void addCCRAsmOperands(MCInst &Inst, unsigned N) const { + Inst.addOperand(MCOperand::CreateReg(Reg.RegNum)); + } + + bool isCCRAsm() const { + assert((Kind == k_Register) && "Invalid access!"); + return Reg.Kind == Kind_CCRRegs; + } + /// getStartLoc - Get the location of the first token of this operand. SMLoc getStartLoc() const { return StartLoc; } /// getEndLoc - Get the location of the last token of this operand. @@ -307,6 +401,56 @@ public: }; } +namespace llvm { +extern const MCInstrDesc MipsInsts[]; +} +static const MCInstrDesc &getInstDesc(unsigned Opcode) { + return MipsInsts[Opcode]; +} + +bool MipsAsmParser::processInstruction(MCInst &Inst, SMLoc IDLoc, + SmallVectorImpl<MCInst> &Instructions) { + const MCInstrDesc &MCID = getInstDesc(Inst.getOpcode()); + Inst.setLoc(IDLoc); + if (MCID.mayLoad() || MCID.mayStore()) { + // Check the offset of memory operand, if it is a symbol + // reference or immediate we may have to expand instructions + for (unsigned i=0;i<MCID.getNumOperands();i++) { + const MCOperandInfo &OpInfo = MCID.OpInfo[i]; + if ((OpInfo.OperandType == MCOI::OPERAND_MEMORY) || + (OpInfo.OperandType == MCOI::OPERAND_UNKNOWN)) { + MCOperand &Op = Inst.getOperand(i); + if (Op.isImm()) { + int MemOffset = Op.getImm(); + if (MemOffset < -32768 || MemOffset > 32767) { + // Offset can't exceed 16bit value + expandMemInst(Inst,IDLoc,Instructions,MCID.mayLoad(),true); + return false; + } + } else if (Op.isExpr()) { + const MCExpr *Expr = Op.getExpr(); + if (Expr->getKind() == MCExpr::SymbolRef){ + const MCSymbolRefExpr *SR = + static_cast<const MCSymbolRefExpr*>(Expr); + if (SR->getKind() == MCSymbolRefExpr::VK_None) { + // Expand symbol + expandMemInst(Inst,IDLoc,Instructions,MCID.mayLoad(),false); + return false; + } + } + } + } + } + } + + if (needsExpansion(Inst)) + expandInstruction(Inst, IDLoc, Instructions); + else + Instructions.push_back(Inst); + + return false; +} + bool MipsAsmParser::needsExpansion(MCInst &Inst) { switch(Inst.getOpcode()) { @@ -344,31 +488,31 @@ void MipsAsmParser::expandLoadImm(MCInst &Inst, SMLoc IDLoc, if ( 0 <= ImmValue && ImmValue <= 65535) { // for 0 <= j <= 65535. // li d,j => ori d,$zero,j - tmpInst.setOpcode(isMips64() ? Mips::ORi64 : Mips::ORi); + tmpInst.setOpcode(Mips::ORi); tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg())); tmpInst.addOperand( - MCOperand::CreateReg(isMips64() ? Mips::ZERO_64 : Mips::ZERO)); + MCOperand::CreateReg(Mips::ZERO)); tmpInst.addOperand(MCOperand::CreateImm(ImmValue)); Instructions.push_back(tmpInst); } else if ( ImmValue < 0 && ImmValue >= -32768) { // for -32768 <= j < 0. // li d,j => addiu d,$zero,j - tmpInst.setOpcode(Mips::ADDiu); //TODO:no ADDiu64 in td files? + tmpInst.setOpcode(Mips::ADDiu); tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg())); tmpInst.addOperand( - MCOperand::CreateReg(isMips64() ? Mips::ZERO_64 : Mips::ZERO)); + MCOperand::CreateReg(Mips::ZERO)); tmpInst.addOperand(MCOperand::CreateImm(ImmValue)); Instructions.push_back(tmpInst); } else { // for any other value of j that is representable as a 32-bit integer. // li d,j => lui d,hi16(j) // ori d,d,lo16(j) - tmpInst.setOpcode(isMips64() ? Mips::LUi64 : Mips::LUi); + tmpInst.setOpcode(Mips::LUi); tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg())); tmpInst.addOperand(MCOperand::CreateImm((ImmValue & 0xffff0000) >> 16)); Instructions.push_back(tmpInst); tmpInst.clear(); - tmpInst.setOpcode(isMips64() ? Mips::ORi64 : Mips::ORi); + tmpInst.setOpcode(Mips::ORi); tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg())); tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg())); tmpInst.addOperand(MCOperand::CreateImm(ImmValue & 0xffff)); @@ -390,7 +534,7 @@ void MipsAsmParser::expandLoadAddressReg(MCInst &Inst, SMLoc IDLoc, if ( -32768 <= ImmValue && ImmValue <= 65535) { //for -32768 <= j <= 65535. //la d,j(s) => addiu d,s,j - tmpInst.setOpcode(Mips::ADDiu); //TODO:no ADDiu64 in td files? + tmpInst.setOpcode(Mips::ADDiu); tmpInst.addOperand(MCOperand::CreateReg(DstRegOp.getReg())); tmpInst.addOperand(MCOperand::CreateReg(SrcRegOp.getReg())); tmpInst.addOperand(MCOperand::CreateImm(ImmValue)); @@ -400,12 +544,12 @@ void MipsAsmParser::expandLoadAddressReg(MCInst &Inst, SMLoc IDLoc, //la d,j(s) => lui d,hi16(j) // ori d,d,lo16(j) // addu d,d,s - tmpInst.setOpcode(isMips64()?Mips::LUi64:Mips::LUi); + tmpInst.setOpcode(Mips::LUi); tmpInst.addOperand(MCOperand::CreateReg(DstRegOp.getReg())); tmpInst.addOperand(MCOperand::CreateImm((ImmValue & 0xffff0000) >> 16)); Instructions.push_back(tmpInst); tmpInst.clear(); - tmpInst.setOpcode(isMips64()?Mips::ORi64:Mips::ORi); + tmpInst.setOpcode(Mips::ORi); tmpInst.addOperand(MCOperand::CreateReg(DstRegOp.getReg())); tmpInst.addOperand(MCOperand::CreateReg(DstRegOp.getReg())); tmpInst.addOperand(MCOperand::CreateImm(ImmValue & 0xffff)); @@ -433,19 +577,19 @@ void MipsAsmParser::expandLoadAddressImm(MCInst &Inst, SMLoc IDLoc, tmpInst.setOpcode(Mips::ADDiu); tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg())); tmpInst.addOperand( - MCOperand::CreateReg(isMips64()?Mips::ZERO_64:Mips::ZERO)); + MCOperand::CreateReg(Mips::ZERO)); tmpInst.addOperand(MCOperand::CreateImm(ImmValue)); Instructions.push_back(tmpInst); } else { //for any other value of j that is representable as a 32-bit integer. //la d,j => lui d,hi16(j) // ori d,d,lo16(j) - tmpInst.setOpcode(isMips64()?Mips::LUi64:Mips::LUi); + tmpInst.setOpcode(Mips::LUi); tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg())); tmpInst.addOperand(MCOperand::CreateImm((ImmValue & 0xffff0000) >> 16)); Instructions.push_back(tmpInst); tmpInst.clear(); - tmpInst.setOpcode(isMips64()?Mips::ORi64:Mips::ORi); + tmpInst.setOpcode(Mips::ORi); tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg())); tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg())); tmpInst.addOperand(MCOperand::CreateImm(ImmValue & 0xffff)); @@ -453,28 +597,103 @@ void MipsAsmParser::expandLoadAddressImm(MCInst &Inst, SMLoc IDLoc, } } +void MipsAsmParser::expandMemInst(MCInst &Inst, SMLoc IDLoc, + SmallVectorImpl<MCInst> &Instructions, + bool isLoad,bool isImmOpnd) { + const MCSymbolRefExpr *SR; + MCInst TempInst; + unsigned ImmOffset,HiOffset,LoOffset; + const MCExpr *ExprOffset; + unsigned TmpRegNum; + unsigned AtRegNum = getReg((isMips64()) ? Mips::CPU64RegsRegClassID: + Mips::CPURegsRegClassID, + getATReg()); + // 1st operand is either source or dst register + assert(Inst.getOperand(0).isReg() && "expected register operand kind"); + unsigned RegOpNum = Inst.getOperand(0).getReg(); + // 2nd operand is base register + assert(Inst.getOperand(1).isReg() && "expected register operand kind"); + unsigned BaseRegNum = Inst.getOperand(1).getReg(); + // 3rd operand is either immediate or expression + if (isImmOpnd) { + assert(Inst.getOperand(2).isImm() && "expected immediate operand kind"); + ImmOffset = Inst.getOperand(2).getImm(); + LoOffset = ImmOffset & 0x0000ffff; + HiOffset = (ImmOffset & 0xffff0000) >> 16; + // If msb of LoOffset is 1(negative number) we must increment HiOffset + if (LoOffset & 0x8000) + HiOffset++; + } + else + ExprOffset = Inst.getOperand(2).getExpr(); + // All instructions will have the same location + TempInst.setLoc(IDLoc); + // 1st instruction in expansion is LUi. For load instruction we can use + // the dst register as a temporary if base and dst are different, + // but for stores we must use $at + TmpRegNum = (isLoad && (BaseRegNum != RegOpNum))?RegOpNum:AtRegNum; + TempInst.setOpcode(Mips::LUi); + TempInst.addOperand(MCOperand::CreateReg(TmpRegNum)); + if (isImmOpnd) + TempInst.addOperand(MCOperand::CreateImm(HiOffset)); + else { + if (ExprOffset->getKind() == MCExpr::SymbolRef) { + SR = static_cast<const MCSymbolRefExpr*>(ExprOffset); + const MCSymbolRefExpr *HiExpr = MCSymbolRefExpr:: + Create(SR->getSymbol().getName(), + MCSymbolRefExpr::VK_Mips_ABS_HI, + getContext()); + TempInst.addOperand(MCOperand::CreateExpr(HiExpr)); + } + } + // Add the instruction to the list + Instructions.push_back(TempInst); + // and prepare TempInst for next instruction + TempInst.clear(); + // which is add temp register to base + TempInst.setOpcode(Mips::ADDu); + TempInst.addOperand(MCOperand::CreateReg(TmpRegNum)); + TempInst.addOperand(MCOperand::CreateReg(TmpRegNum)); + TempInst.addOperand(MCOperand::CreateReg(BaseRegNum)); + Instructions.push_back(TempInst); + TempInst.clear(); + // and finaly, create original instruction with low part + // of offset and new base + TempInst.setOpcode(Inst.getOpcode()); + TempInst.addOperand(MCOperand::CreateReg(RegOpNum)); + TempInst.addOperand(MCOperand::CreateReg(TmpRegNum)); + if (isImmOpnd) + TempInst.addOperand(MCOperand::CreateImm(LoOffset)); + else { + if (ExprOffset->getKind() == MCExpr::SymbolRef) { + const MCSymbolRefExpr *LoExpr = MCSymbolRefExpr:: + Create(SR->getSymbol().getName(), + MCSymbolRefExpr::VK_Mips_ABS_LO, + getContext()); + TempInst.addOperand(MCOperand::CreateExpr(LoExpr)); + } + } + Instructions.push_back(TempInst); + TempInst.clear(); +} + bool MipsAsmParser:: MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode, SmallVectorImpl<MCParsedAsmOperand*> &Operands, MCStreamer &Out, unsigned &ErrorInfo, bool MatchingInlineAsm) { MCInst Inst; + SmallVector<MCInst, 8> Instructions; unsigned MatchResult = MatchInstructionImpl(Operands, Inst, ErrorInfo, MatchingInlineAsm); switch (MatchResult) { default: break; case Match_Success: { - if (needsExpansion(Inst)) { - SmallVector<MCInst, 4> Instructions; - expandInstruction(Inst, IDLoc, Instructions); - for(unsigned i =0; i < Instructions.size(); i++){ - Out.EmitInstruction(Instructions[i]); - } - } else { - Inst.setLoc(IDLoc); - Out.EmitInstruction(Inst); - } + if (processInstruction(Inst,IDLoc,Instructions)) + return true; + for(unsigned i =0; i < Instructions.size(); i++) + Out.EmitInstruction(Instructions[i]); return false; } case Match_MissingFeature: @@ -498,84 +717,72 @@ MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode, return true; } -int MipsAsmParser::matchRegisterName(StringRef Name) { - +int MipsAsmParser::matchCPURegisterName(StringRef Name) { int CC; - if (!isMips64()) + + if (Name == "at") + return getATReg(); + CC = StringSwitch<unsigned>(Name) - .Case("zero", Mips::ZERO) - .Case("a0", Mips::A0) - .Case("a1", Mips::A1) - .Case("a2", Mips::A2) - .Case("a3", Mips::A3) - .Case("v0", Mips::V0) - .Case("v1", Mips::V1) - .Case("s0", Mips::S0) - .Case("s1", Mips::S1) - .Case("s2", Mips::S2) - .Case("s3", Mips::S3) - .Case("s4", Mips::S4) - .Case("s5", Mips::S5) - .Case("s6", Mips::S6) - .Case("s7", Mips::S7) - .Case("k0", Mips::K0) - .Case("k1", Mips::K1) - .Case("sp", Mips::SP) - .Case("fp", Mips::FP) - .Case("gp", Mips::GP) - .Case("ra", Mips::RA) - .Case("t0", Mips::T0) - .Case("t1", Mips::T1) - .Case("t2", Mips::T2) - .Case("t3", Mips::T3) - .Case("t4", Mips::T4) - .Case("t5", Mips::T5) - .Case("t6", Mips::T6) - .Case("t7", Mips::T7) - .Case("t8", Mips::T8) - .Case("t9", Mips::T9) - .Case("at", Mips::AT) - .Case("fcc0", Mips::FCC0) - .Default(-1); - else + .Case("zero", 0) + .Case("a0", 4) + .Case("a1", 5) + .Case("a2", 6) + .Case("a3", 7) + .Case("v0", 2) + .Case("v1", 3) + .Case("s0", 16) + .Case("s1", 17) + .Case("s2", 18) + .Case("s3", 19) + .Case("s4", 20) + .Case("s5", 21) + .Case("s6", 22) + .Case("s7", 23) + .Case("k0", 26) + .Case("k1", 27) + .Case("sp", 29) + .Case("fp", 30) + .Case("gp", 28) + .Case("ra", 31) + .Case("t0", 8) + .Case("t1", 9) + .Case("t2", 10) + .Case("t3", 11) + .Case("t4", 12) + .Case("t5", 13) + .Case("t6", 14) + .Case("t7", 15) + .Case("t8", 24) + .Case("t9", 25) + .Default(-1); + + // Although SGI documentation just cut out t0-t3 for n32/n64, + // GNU pushes the values of t0-t3 to override the o32/o64 values for t4-t7 + // We are supporting both cases, so for t0-t3 we'll just push them to t4-t7. + if (isMips64() && 8 <= CC && CC <= 11) + CC += 4; + + if (CC == -1 && isMips64()) CC = StringSwitch<unsigned>(Name) - .Case("zero", Mips::ZERO_64) - .Case("at", Mips::AT_64) - .Case("v0", Mips::V0_64) - .Case("v1", Mips::V1_64) - .Case("a0", Mips::A0_64) - .Case("a1", Mips::A1_64) - .Case("a2", Mips::A2_64) - .Case("a3", Mips::A3_64) - .Case("a4", Mips::T0_64) - .Case("a5", Mips::T1_64) - .Case("a6", Mips::T2_64) - .Case("a7", Mips::T3_64) - .Case("t4", Mips::T4_64) - .Case("t5", Mips::T5_64) - .Case("t6", Mips::T6_64) - .Case("t7", Mips::T7_64) - .Case("s0", Mips::S0_64) - .Case("s1", Mips::S1_64) - .Case("s2", Mips::S2_64) - .Case("s3", Mips::S3_64) - .Case("s4", Mips::S4_64) - .Case("s5", Mips::S5_64) - .Case("s6", Mips::S6_64) - .Case("s7", Mips::S7_64) - .Case("t8", Mips::T8_64) - .Case("t9", Mips::T9_64) - .Case("kt0", Mips::K0_64) - .Case("kt1", Mips::K1_64) - .Case("gp", Mips::GP_64) - .Case("sp", Mips::SP_64) - .Case("fp", Mips::FP_64) - .Case("s8", Mips::FP_64) - .Case("ra", Mips::RA_64) + .Case("a4", 8) + .Case("a5", 9) + .Case("a6", 10) + .Case("a7", 11) + .Case("kt0", 26) + .Case("kt1", 27) + .Case("s8", 30) .Default(-1); + return CC; +} +int MipsAsmParser::matchRegisterName(StringRef Name, bool is64BitReg) { + + int CC; + CC = matchCPURegisterName(Name); if (CC != -1) - return CC; + return matchRegisterByNumber(CC,is64BitReg?Mips::CPU64RegsRegClassID: + Mips::CPURegsRegClassID); if (Name[0] == 'f') { StringRef NumString = Name.substr(1); @@ -639,70 +846,44 @@ bool MipsAssemblerOptions::setATReg(unsigned Reg) { return true; } -unsigned MipsAsmParser::getATReg() { - unsigned Reg = Options.getATRegNum(); - if (isMips64()) - return getReg(Mips::CPU64RegsRegClassID,Reg); - - return getReg(Mips::CPURegsRegClassID,Reg); +int MipsAsmParser::getATReg() { + return Options.getATRegNum(); } unsigned MipsAsmParser::getReg(int RC,int RegNo) { return *(getContext().getRegisterInfo().getRegClass(RC).begin() + RegNo); } -int MipsAsmParser::matchRegisterByNumber(unsigned RegNum, StringRef Mnemonic) { - - if (Mnemonic.lower() == "rdhwr") { - // at the moment only hwreg29 is supported - if (RegNum != 29) - return -1; - return Mips::HWR29; - } +int MipsAsmParser::matchRegisterByNumber(unsigned RegNum, unsigned RegClass) { if (RegNum > 31) return -1; - // MIPS64 registers are numbered 1 after the 32-bit equivalents - return getReg(Mips::CPURegsRegClassID, RegNum) + isMips64(); + return getReg(RegClass, RegNum); } -int MipsAsmParser::tryParseRegister(StringRef Mnemonic) { +int MipsAsmParser::tryParseRegister(bool is64BitReg) { const AsmToken &Tok = Parser.getTok(); int RegNum = -1; if (Tok.is(AsmToken::Identifier)) { std::string lowerCase = Tok.getString().lower(); - RegNum = matchRegisterName(lowerCase); + RegNum = matchRegisterName(lowerCase, is64BitReg); } else if (Tok.is(AsmToken::Integer)) RegNum = matchRegisterByNumber(static_cast<unsigned>(Tok.getIntVal()), - Mnemonic.lower()); - else - return RegNum; //error - // 64 bit div operations require Mips::ZERO instead of MIPS::ZERO_64 - if (isMips64() && RegNum == Mips::ZERO_64) { - if (Mnemonic.find("ddiv") != StringRef::npos) - RegNum = Mips::ZERO; - } + is64BitReg ? Mips::CPU64RegsRegClassID + : Mips::CPURegsRegClassID); return RegNum; } bool MipsAsmParser:: tryParseRegisterOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands, - StringRef Mnemonic){ + bool is64BitReg){ SMLoc S = Parser.getTok().getLoc(); int RegNo = -1; - // FIXME: we should make a more generic method for CCR - if ((Mnemonic == "cfc1" || Mnemonic == "ctc1") - && Operands.size() == 2 && Parser.getTok().is(AsmToken::Integer)){ - RegNo = Parser.getTok().getIntVal(); // get the int value - // at the moment only fcc0 is supported - if (RegNo == 0) - RegNo = Mips::FCC0; - } else - RegNo = tryParseRegister(Mnemonic); + RegNo = tryParseRegister(is64BitReg); if (RegNo == -1) return true; @@ -734,7 +915,7 @@ bool MipsAsmParser::ParseOperand(SmallVectorImpl<MCParsedAsmOperand*>&Operands, SMLoc S = Parser.getTok().getLoc(); Parser.Lex(); // Eat dollar token. // parse register operand - if (!tryParseRegisterOperand(Operands, Mnemonic)) { + if (!tryParseRegisterOperand(Operands, isMips64())) { if (getLexer().is(AsmToken::LParen)) { // check if it is indexed addressing operand Operands.push_back(MipsOperand::CreateToken("(", S)); @@ -743,7 +924,7 @@ bool MipsAsmParser::ParseOperand(SmallVectorImpl<MCParsedAsmOperand*>&Operands, return true; Parser.Lex(); // eat dollar - if (tryParseRegisterOperand(Operands, Mnemonic)) + if (tryParseRegisterOperand(Operands, isMips64())) return true; if (!getLexer().is(AsmToken::RParen)) @@ -757,7 +938,7 @@ bool MipsAsmParser::ParseOperand(SmallVectorImpl<MCParsedAsmOperand*>&Operands, } // maybe it is a symbol reference StringRef Identifier; - if (Parser.ParseIdentifier(Identifier)) + if (Parser.parseIdentifier(Identifier)) return true; SMLoc E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1); @@ -772,6 +953,11 @@ bool MipsAsmParser::ParseOperand(SmallVectorImpl<MCParsedAsmOperand*>&Operands, return false; } case AsmToken::Identifier: + // Look for the existing symbol, we should check if + // we need to assigne the propper RegisterKind + if (searchSymbolAlias(Operands,MipsOperand::Kind_None)) + return false; + //else drop to expression parsing case AsmToken::LParen: case AsmToken::Minus: case AsmToken::Plus: @@ -780,7 +966,7 @@ bool MipsAsmParser::ParseOperand(SmallVectorImpl<MCParsedAsmOperand*>&Operands, // quoted label names const MCExpr *IdVal; SMLoc S = Parser.getTok().getLoc(); - if (getParser().ParseExpression(IdVal)) + if (getParser().parseExpression(IdVal)) return true; SMLoc E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1); Operands.push_back(MipsOperand::CreateImm(IdVal, S, E)); @@ -832,7 +1018,7 @@ bool MipsAsmParser::parseRelocOperand(const MCExpr *&Res) { } else break; } - if (getParser().ParseParenExpression(IdVal,EndLoc)) + if (getParser().parseParenExpression(IdVal,EndLoc)) return true; while (getLexer().getKind() == AsmToken::RParen) @@ -843,19 +1029,25 @@ bool MipsAsmParser::parseRelocOperand(const MCExpr *&Res) { // Check the type of the expression if (const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(IdVal)) { - // it's a constant, evaluate lo or hi value - int Val = MCE->getValue(); + // It's a constant, evaluate lo or hi value if (Str == "lo") { - Val = Val & 0xffff; + short Val = MCE->getValue(); + Res = MCConstantExpr::Create(Val, getContext()); } else if (Str == "hi") { + int Val = MCE->getValue(); + int LoSign = Val & 0x8000; Val = (Val & 0xffff0000) >> 16; + // Lower part is treated as a signed int, so if it is negative + // we must add 1 to the hi part to compensate + if (LoSign) + Val++; + Res = MCConstantExpr::Create(Val, getContext()); } - Res = MCConstantExpr::Create(Val, getContext()); return false; } if (const MCSymbolRefExpr *MSRE = dyn_cast<MCSymbolRefExpr>(IdVal)) { - // it's a symbol, create symbolic expression from symbol + // It's a symbol, create symbolic expression from symbol StringRef Symbol = MSRE->getSymbol().getName(); MCSymbolRefExpr::VariantKind VK = getVariantKind(Str); Res = MCSymbolRefExpr::Create(Symbol,VK,getContext()); @@ -868,7 +1060,7 @@ bool MipsAsmParser::ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc) { StartLoc = Parser.getTok().getLoc(); - RegNo = tryParseRegister(""); + RegNo = tryParseRegister(isMips64()); EndLoc = Parser.getTok().getLoc(); return (RegNo == (unsigned)-1); } @@ -880,10 +1072,11 @@ bool MipsAsmParser::parseMemOffset(const MCExpr *&Res) { switch(getLexer().getKind()) { default: return true; + case AsmToken::Identifier: case AsmToken::Integer: case AsmToken::Minus: case AsmToken::Plus: - return (getParser().ParseExpression(Res)); + return (getParser().parseExpression(Res)); case AsmToken::Percent: return parseRelocOperand(Res); case AsmToken::LParen: @@ -907,7 +1100,7 @@ MipsAsmParser::OperandMatchResultTy MipsAsmParser::parseMemOperand( if (Tok.isNot(AsmToken::LParen)) { MipsOperand *Mnemonic = static_cast<MipsOperand*>(Operands[0]); if (Mnemonic->getToken() == "la") { - SMLoc E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer()-1); + SMLoc E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() -1); Operands.push_back(MipsOperand::CreateImm(IdVal, S, E)); return MatchOperand_Success; } @@ -920,7 +1113,7 @@ MipsAsmParser::OperandMatchResultTy MipsAsmParser::parseMemOperand( const AsmToken &Tok1 = Parser.getTok(); // get next token if (Tok1.is(AsmToken::Dollar)) { Parser.Lex(); // Eat '$' token. - if (tryParseRegisterOperand(Operands,"")) { + if (tryParseRegisterOperand(Operands, isMips64())) { Error(Parser.getTok().getLoc(), "unexpected token in operand"); return MatchOperand_ParseFail; } @@ -954,6 +1147,180 @@ MipsAsmParser::OperandMatchResultTy MipsAsmParser::parseMemOperand( return MatchOperand_Success; } +MipsAsmParser::OperandMatchResultTy +MipsAsmParser::parseCPU64Regs(SmallVectorImpl<MCParsedAsmOperand*> &Operands) { + + if (!isMips64()) + return MatchOperand_NoMatch; + if (getLexer().getKind() == AsmToken::Identifier) { + if (searchSymbolAlias(Operands,MipsOperand::Kind_CPU64Regs)) + return MatchOperand_Success; + return MatchOperand_NoMatch; + } + // if the first token is not '$' we have an error + if (Parser.getTok().isNot(AsmToken::Dollar)) + return MatchOperand_NoMatch; + + Parser.Lex(); // Eat $ + if(!tryParseRegisterOperand(Operands, true)) { + // set the proper register kind + MipsOperand* op = static_cast<MipsOperand*>(Operands.back()); + op->setRegKind(MipsOperand::Kind_CPU64Regs); + return MatchOperand_Success; + } + return MatchOperand_NoMatch; +} + +bool MipsAsmParser:: +searchSymbolAlias(SmallVectorImpl<MCParsedAsmOperand*> &Operands, + unsigned RegisterKind) { + + MCSymbol *Sym = getContext().LookupSymbol(Parser.getTok().getIdentifier()); + if (Sym) { + SMLoc S = Parser.getTok().getLoc(); + const MCExpr *Expr; + if (Sym->isVariable()) + Expr = Sym->getVariableValue(); + else + return false; + if (Expr->getKind() == MCExpr::SymbolRef) { + const MCSymbolRefExpr *Ref = static_cast<const MCSymbolRefExpr*>(Expr); + const StringRef DefSymbol = Ref->getSymbol().getName(); + if (DefSymbol.startswith("$")) { + // Lookup for the register with corresponding name + int RegNum = matchRegisterName(DefSymbol.substr(1),isMips64()); + if (RegNum > -1) { + Parser.Lex(); + MipsOperand *op = MipsOperand::CreateReg(RegNum,S, + Parser.getTok().getLoc()); + op->setRegKind((MipsOperand::RegisterKind)RegisterKind); + Operands.push_back(op); + return true; + } + } + } else if (Expr->getKind() == MCExpr::Constant) { + Parser.Lex(); + const MCConstantExpr *Const = static_cast<const MCConstantExpr*>(Expr); + MipsOperand *op = MipsOperand::CreateImm(Const,S, + Parser.getTok().getLoc()); + Operands.push_back(op); + return true; + } + } + return false; +} +MipsAsmParser::OperandMatchResultTy +MipsAsmParser::parseCPURegs(SmallVectorImpl<MCParsedAsmOperand*> &Operands) { + + if (getLexer().getKind() == AsmToken::Identifier) { + if (searchSymbolAlias(Operands,MipsOperand::Kind_CPURegs)) + return MatchOperand_Success; + return MatchOperand_NoMatch; + } + // if the first token is not '$' we have an error + if (Parser.getTok().isNot(AsmToken::Dollar)) + return MatchOperand_NoMatch; + + Parser.Lex(); // Eat $ + if(!tryParseRegisterOperand(Operands, false)) { + // set the propper register kind + MipsOperand* op = static_cast<MipsOperand*>(Operands.back()); + op->setRegKind(MipsOperand::Kind_CPURegs); + return MatchOperand_Success; + } + return MatchOperand_NoMatch; +} + +MipsAsmParser::OperandMatchResultTy +MipsAsmParser::parseHWRegs(SmallVectorImpl<MCParsedAsmOperand*> &Operands) { + + if (isMips64()) + return MatchOperand_NoMatch; + + // if the first token is not '$' we have error + if (Parser.getTok().isNot(AsmToken::Dollar)) + return MatchOperand_NoMatch; + SMLoc S = Parser.getTok().getLoc(); + Parser.Lex(); // Eat $ + + const AsmToken &Tok = Parser.getTok(); // get next token + if (Tok.isNot(AsmToken::Integer)) + return MatchOperand_NoMatch; + + unsigned RegNum = Tok.getIntVal(); + // at the moment only hwreg29 is supported + if (RegNum != 29) + return MatchOperand_ParseFail; + + MipsOperand *op = MipsOperand::CreateReg(Mips::HWR29, S, + Parser.getTok().getLoc()); + op->setRegKind(MipsOperand::Kind_HWRegs); + Operands.push_back(op); + + Parser.Lex(); // Eat reg number + return MatchOperand_Success; +} + +MipsAsmParser::OperandMatchResultTy +MipsAsmParser::parseHW64Regs(SmallVectorImpl<MCParsedAsmOperand*> &Operands) { + + if (!isMips64()) + return MatchOperand_NoMatch; + //if the first token is not '$' we have error + if (Parser.getTok().isNot(AsmToken::Dollar)) + return MatchOperand_NoMatch; + SMLoc S = Parser.getTok().getLoc(); + Parser.Lex(); // Eat $ + + const AsmToken &Tok = Parser.getTok(); // get next token + if (Tok.isNot(AsmToken::Integer)) + return MatchOperand_NoMatch; + + unsigned RegNum = Tok.getIntVal(); + // at the moment only hwreg29 is supported + if (RegNum != 29) + return MatchOperand_ParseFail; + + MipsOperand *op = MipsOperand::CreateReg(Mips::HWR29_64, S, + Parser.getTok().getLoc()); + op->setRegKind(MipsOperand::Kind_HW64Regs); + Operands.push_back(op); + + Parser.Lex(); // Eat reg number + return MatchOperand_Success; +} + +MipsAsmParser::OperandMatchResultTy +MipsAsmParser::parseCCRRegs(SmallVectorImpl<MCParsedAsmOperand*> &Operands) { + unsigned RegNum; + //if the first token is not '$' we have error + if (Parser.getTok().isNot(AsmToken::Dollar)) + return MatchOperand_NoMatch; + SMLoc S = Parser.getTok().getLoc(); + Parser.Lex(); // Eat $ + + const AsmToken &Tok = Parser.getTok(); // get next token + if (Tok.is(AsmToken::Integer)) { + RegNum = Tok.getIntVal(); + // at the moment only fcc0 is supported + if (RegNum != 0) + return MatchOperand_ParseFail; + } else if (Tok.is(AsmToken::Identifier)) { + // at the moment only fcc0 is supported + if (Tok.getIdentifier() != "fcc0") + return MatchOperand_ParseFail; + } else + return MatchOperand_NoMatch; + + MipsOperand *op = MipsOperand::CreateReg(Mips::FCC0, S, + Parser.getTok().getLoc()); + op->setRegKind(MipsOperand::Kind_CCRRegs); + Operands.push_back(op); + + Parser.Lex(); // Eat reg number + return MatchOperand_Success; +} + MCSymbolRefExpr::VariantKind MipsAsmParser::getVariantKind(StringRef Symbol) { MCSymbolRefExpr::VariantKind VK @@ -1023,13 +1390,13 @@ parseMathOperation(StringRef Name, SMLoc NameLoc, // Read the first operand. if (ParseOperand(Operands, Name)) { SMLoc Loc = getLexer().getLoc(); - Parser.EatToEndOfStatement(); + Parser.eatToEndOfStatement(); return Error(Loc, "unexpected token in argument list"); } if (getLexer().isNot(AsmToken::Comma)) { SMLoc Loc = getLexer().getLoc(); - Parser.EatToEndOfStatement(); + Parser.eatToEndOfStatement(); return Error(Loc, "unexpected token in argument list"); } @@ -1041,14 +1408,14 @@ parseMathOperation(StringRef Name, SMLoc NameLoc, // Parse and remember the operand. if (ParseOperand(Operands, Name)) { SMLoc Loc = getLexer().getLoc(); - Parser.EatToEndOfStatement(); + Parser.eatToEndOfStatement(); return Error(Loc, "unexpected token in argument list"); } } if (getLexer().isNot(AsmToken::EndOfStatement)) { SMLoc Loc = getLexer().getLoc(); - Parser.EatToEndOfStatement(); + Parser.eatToEndOfStatement(); return Error(Loc, "unexpected token in argument list"); } @@ -1059,16 +1426,18 @@ parseMathOperation(StringRef Name, SMLoc NameLoc, bool MipsAsmParser:: ParseInstruction(ParseInstructionInfo &Info, StringRef Name, SMLoc NameLoc, SmallVectorImpl<MCParsedAsmOperand*> &Operands) { + StringRef Mnemonic; // floating point instructions: should register be treated as double? if (requestsDoubleOperand(Name)) { setFpFormat(FP_FORMAT_D); Operands.push_back(MipsOperand::CreateToken(Name, NameLoc)); + Mnemonic = Name; } else { setDefaultFpFormat(); // Create the leading tokens for the mnemonic, split by '.' characters. size_t Start = 0, Next = Name.find('.'); - StringRef Mnemonic = Name.slice(Start, Next); + Mnemonic = Name.slice(Start, Next); Operands.push_back(MipsOperand::CreateToken(Mnemonic, NameLoc)); @@ -1108,9 +1477,9 @@ ParseInstruction(ParseInstructionInfo &Info, StringRef Name, SMLoc NameLoc, // Read the remaining operands. if (getLexer().isNot(AsmToken::EndOfStatement)) { // Read the first operand. - if (ParseOperand(Operands, Name)) { + if (ParseOperand(Operands, Mnemonic)) { SMLoc Loc = getLexer().getLoc(); - Parser.EatToEndOfStatement(); + Parser.eatToEndOfStatement(); return Error(Loc, "unexpected token in argument list"); } @@ -1120,7 +1489,7 @@ ParseInstruction(ParseInstructionInfo &Info, StringRef Name, SMLoc NameLoc, // Parse and remember the operand. if (ParseOperand(Operands, Name)) { SMLoc Loc = getLexer().getLoc(); - Parser.EatToEndOfStatement(); + Parser.eatToEndOfStatement(); return Error(Loc, "unexpected token in argument list"); } } @@ -1128,7 +1497,7 @@ ParseInstruction(ParseInstructionInfo &Info, StringRef Name, SMLoc NameLoc, if (getLexer().isNot(AsmToken::EndOfStatement)) { SMLoc Loc = getLexer().getLoc(); - Parser.EatToEndOfStatement(); + Parser.eatToEndOfStatement(); return Error(Loc, "unexpected token in argument list"); } @@ -1138,18 +1507,18 @@ ParseInstruction(ParseInstructionInfo &Info, StringRef Name, SMLoc NameLoc, bool MipsAsmParser::reportParseError(StringRef ErrorMsg) { SMLoc Loc = getLexer().getLoc(); - Parser.EatToEndOfStatement(); + Parser.eatToEndOfStatement(); return Error(Loc, ErrorMsg); } bool MipsAsmParser::parseSetNoAtDirective() { - // line should look like: + // Line should look like: // .set noat // set at reg to 0 Options.setATReg(0); // eat noat Parser.Lex(); - // if this is not the end of the statement, report error + // If this is not the end of the statement, report error if (getLexer().isNot(AsmToken::EndOfStatement)) { reportParseError("unexpected token in statement"); return false; @@ -1161,28 +1530,39 @@ bool MipsAsmParser::parseSetAtDirective() { // line can be // .set at - defaults to $1 // or .set at=$reg + int AtRegNo; getParser().Lex(); if (getLexer().is(AsmToken::EndOfStatement)) { Options.setATReg(1); Parser.Lex(); // Consume the EndOfStatement return false; } else if (getLexer().is(AsmToken::Equal)) { - getParser().Lex(); //eat '=' + getParser().Lex(); // eat '=' if (getLexer().isNot(AsmToken::Dollar)) { reportParseError("unexpected token in statement"); return false; } - Parser.Lex(); // eat '$' - if (getLexer().isNot(AsmToken::Integer)) { + Parser.Lex(); // Eat '$' + const AsmToken &Reg = Parser.getTok(); + if (Reg.is(AsmToken::Identifier)) { + AtRegNo = matchCPURegisterName(Reg.getIdentifier()); + } else if (Reg.is(AsmToken::Integer)) { + AtRegNo = Reg.getIntVal(); + } else { reportParseError("unexpected token in statement"); return false; } - const AsmToken &Reg = Parser.getTok(); - if (!Options.setATReg(Reg.getIntVal())) { + + if ( AtRegNo < 1 || AtRegNo > 31) { + reportParseError("unexpected token in statement"); + return false; + } + + if (!Options.setATReg(AtRegNo)) { reportParseError("unexpected token in statement"); return false; } - getParser().Lex(); //eat reg + getParser().Lex(); // Eat reg if (getLexer().isNot(AsmToken::EndOfStatement)) { reportParseError("unexpected token in statement"); @@ -1198,7 +1578,7 @@ bool MipsAsmParser::parseSetAtDirective() { bool MipsAsmParser::parseSetReorderDirective() { Parser.Lex(); - // if this is not the end of the statement, report error + // If this is not the end of the statement, report error if (getLexer().isNot(AsmToken::EndOfStatement)) { reportParseError("unexpected token in statement"); return false; @@ -1247,6 +1627,31 @@ bool MipsAsmParser::parseSetNoMacroDirective() { Parser.Lex(); // Consume the EndOfStatement return false; } + +bool MipsAsmParser::parseSetAssignment() { + StringRef Name; + const MCExpr *Value; + + if (Parser.parseIdentifier(Name)) + reportParseError("expected identifier after .set"); + + if (getLexer().isNot(AsmToken::Comma)) + return reportParseError("unexpected token in .set directive"); + Lex(); //eat comma + + if (Parser.parseExpression(Value)) + reportParseError("expected valid expression after comma"); + + // check if the Name already exists as a symbol + MCSymbol *Sym = getContext().LookupSymbol(Name); + if (Sym) { + return reportParseError("symbol already defined"); + } + Sym = getContext().GetOrCreateSymbol(Name); + Sym->setVariableValue(Value); + + return false; +} bool MipsAsmParser::parseDirectiveSet() { // get next token @@ -1266,55 +1671,92 @@ bool MipsAsmParser::parseDirectiveSet() { return parseSetNoMacroDirective(); } else if (Tok.getString() == "nomips16") { // ignore this directive for now - Parser.EatToEndOfStatement(); + Parser.eatToEndOfStatement(); return false; } else if (Tok.getString() == "nomicromips") { // ignore this directive for now - Parser.EatToEndOfStatement(); + Parser.eatToEndOfStatement(); + return false; + } else { + // it is just an identifier, look for assignment + parseSetAssignment(); return false; } + return true; } +/// parseDirectiveWord +/// ::= .word [ expression (, expression)* ] +bool MipsAsmParser::parseDirectiveWord(unsigned Size, SMLoc L) { + if (getLexer().isNot(AsmToken::EndOfStatement)) { + for (;;) { + const MCExpr *Value; + if (getParser().parseExpression(Value)) + return true; + + getParser().getStreamer().EmitValue(Value, Size); + + if (getLexer().is(AsmToken::EndOfStatement)) + break; + + // FIXME: Improve diagnostic. + if (getLexer().isNot(AsmToken::Comma)) + return Error(L, "unexpected token in directive"); + Parser.Lex(); + } + } + + Parser.Lex(); + return false; +} + bool MipsAsmParser::ParseDirective(AsmToken DirectiveID) { - if (DirectiveID.getString() == ".ent") { + StringRef IDVal = DirectiveID.getString(); + + if ( IDVal == ".ent") { // ignore this directive for now Parser.Lex(); return false; } - if (DirectiveID.getString() == ".end") { + if (IDVal == ".end") { // ignore this directive for now Parser.Lex(); return false; } - if (DirectiveID.getString() == ".frame") { + if (IDVal == ".frame") { // ignore this directive for now - Parser.EatToEndOfStatement(); + Parser.eatToEndOfStatement(); return false; } - if (DirectiveID.getString() == ".set") { + if (IDVal == ".set") { return parseDirectiveSet(); } - if (DirectiveID.getString() == ".fmask") { + if (IDVal == ".fmask") { // ignore this directive for now - Parser.EatToEndOfStatement(); + Parser.eatToEndOfStatement(); return false; } - if (DirectiveID.getString() == ".mask") { + if (IDVal == ".mask") { // ignore this directive for now - Parser.EatToEndOfStatement(); + Parser.eatToEndOfStatement(); return false; } - if (DirectiveID.getString() == ".gpword") { + if (IDVal == ".gpword") { // ignore this directive for now - Parser.EatToEndOfStatement(); + Parser.eatToEndOfStatement(); + return false; + } + + if (IDVal == ".word") { + parseDirectiveWord(4, DirectiveID.getLoc()); return false; } |
