diff --git a/lib/Target/X86/AsmParser/X86AsmParser.cpp b/lib/Target/X86/AsmParser/X86AsmParser.cpp index ce3831f2de8..0a8f00d193f 100644 --- a/lib/Target/X86/AsmParser/X86AsmParser.cpp +++ b/lib/Target/X86/AsmParser/X86AsmParser.cpp @@ -48,6 +48,7 @@ private: X86Operand *ParseOperand(); X86Operand *ParseATTOperand(); X86Operand *ParseIntelOperand(); + X86Operand *ParseIntelMemOperand(StringRef TokenString, unsigned Size); X86Operand *ParseMemOperand(unsigned SegReg, SMLoc StartLoc); bool ParseDirectiveWord(unsigned Size, SMLoc L); @@ -573,58 +574,63 @@ static bool isIntelMemOperand(StringRef OpStr, unsigned &Size) { return Size != 0; } +/// ParseIntelMemOperand - Parse intel style memory operand. +X86Operand *X86AsmParser::ParseIntelMemOperand(StringRef TokenString, + unsigned Size) { + SMLoc Start = Parser.getTok().getLoc(), End; + unsigned SegReg = 0, BaseReg = 0, IndexReg = 0, Scale = 1; + Parser.Lex(); + if (TokenString == "PTR") + Parser.Lex(); + else { + Error(Start, "unexpected token!"); + return 0; + } + + if (TokenString == "[") + Parser.Lex(); + else { + Error(Start, "unexpected token!"); + return 0; + } + + SMLoc LParenLoc = Parser.getTok().getLoc(); + BaseReg = getIntelRegisterOperand(TokenString); + if (BaseReg == 0) { + Error(LParenLoc, "unexpected token!"); + return 0; + } + Parser.Lex(); + const MCExpr *Disp = MCConstantExpr::Create(0, getParser().getContext()); + SMLoc ExprEnd; + if (getParser().ParseExpression(Disp, ExprEnd)) return 0; + End = Parser.getTok().getLoc(); + if (TokenString == "]") + Parser.Lex(); + if (BaseReg == 0) { + Error(End, "unexpected token!"); + return 0; + } + return X86Operand::CreateMem(SegReg, Disp, BaseReg, IndexReg, Scale, + Start, End, Size); +} + X86Operand *X86AsmParser::ParseIntelOperand() { - const AsmToken &Tok = Parser.getTok(); + StringRef TokenString = Parser.getTok().getString(); SMLoc Start = Parser.getTok().getLoc(), End; // register - if(unsigned RegNo = getIntelRegisterOperand(Tok.getString())) { + if(unsigned RegNo = getIntelRegisterOperand(TokenString)) { Parser.Lex(); End = Parser.getTok().getLoc(); return X86Operand::CreateReg(RegNo, Start, End); } // mem operand - unsigned SegReg = 0, BaseReg = 0, IndexReg = 0, Scale = 1; - StringRef OpStr = Tok.getString(); unsigned Size = 0; - if (isIntelMemOperand(OpStr, Size)) { - Parser.Lex(); - if (Tok.getString() == "PTR") - Parser.Lex(); - else { - Error(Start, "unexpected token!"); - return 0; - } - - if (Tok.getString() == "[") - Parser.Lex(); - else { - Error(Start, "unexpected token!"); - return 0; - } - - SMLoc LParenLoc = Parser.getTok().getLoc(); - BaseReg = getIntelRegisterOperand(Tok.getString()); - if (BaseReg == 0) { - Error(LParenLoc, "unexpected token!"); - return 0; - } - Parser.Lex(); - const MCExpr *Disp = MCConstantExpr::Create(0, getParser().getContext()); - SMLoc ExprEnd; - if (getParser().ParseExpression(Disp, ExprEnd)) return 0; - End = Parser.getTok().getLoc(); - if (Tok.getString() == "]") - Parser.Lex(); - if (BaseReg == 0) { - Error(End, "unexpected token!"); - return 0; - } - return X86Operand::CreateMem(SegReg, Disp, BaseReg, IndexReg, Scale, - Start, End, Size); - } + if (isIntelMemOperand(TokenString, Size)) + ParseIntelMemOperand(TokenString, Size); // immediate. const MCExpr *Val;