From 46978976b3ae91ae883561076cacb2b2affc5862 Mon Sep 17 00:00:00 2001 From: Daniel Dunbar Date: Tue, 28 Jul 2009 18:17:26 +0000 Subject: Switch X86 assembly parser to using the generic lexer interface. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77341 91177308-0d34-0410-b5e6-96231b3b80d8 --- tools/llvm-mc/MC-X86Specific.cpp | 56 ++++++++++++++++++++-------------------- 1 file changed, 28 insertions(+), 28 deletions(-) diff --git a/tools/llvm-mc/MC-X86Specific.cpp b/tools/llvm-mc/MC-X86Specific.cpp index 0dd711f..139d485 100644 --- a/tools/llvm-mc/MC-X86Specific.cpp +++ b/tools/llvm-mc/MC-X86Specific.cpp @@ -81,17 +81,17 @@ struct AsmParser::X86Operand { }; bool AsmParser::ParseX86Register(X86Operand &Op) { - assert(Lexer.getKind() == AsmToken::Register && "Invalid token kind!"); + assert(getLexer().is(AsmToken::Register) && "Invalid token kind!"); // FIXME: Decode register number. Op = X86Operand::CreateReg(123); - Lexer.Lex(); // Eat register token. + getLexer().Lex(); // Eat register token. return false; } bool AsmParser::ParseX86Operand(X86Operand &Op) { - switch (Lexer.getKind()) { + switch (getLexer().getKind()) { default: return ParseX86MemOperand(Op); case AsmToken::Register: @@ -100,7 +100,7 @@ bool AsmParser::ParseX86Operand(X86Operand &Op) { return ParseX86Register(Op); case AsmToken::Dollar: { // $42 -> immediate. - Lexer.Lex(); + getLexer().Lex(); MCValue Val; if (ParseRelocatableExpression(Val)) return true; @@ -108,9 +108,9 @@ bool AsmParser::ParseX86Operand(X86Operand &Op) { return false; } case AsmToken::Star: { - Lexer.Lex(); // Eat the star. + getLexer().Lex(); // Eat the star. - if (Lexer.is(AsmToken::Register)) { + if (getLexer().is(AsmToken::Register)) { if (ParseX86Register(Op)) return true; } else if (ParseX86MemOperand(Op)) @@ -132,24 +132,24 @@ bool AsmParser::ParseX86MemOperand(X86Operand &Op) { // only way to do this without lookahead is to eat the ( and see what is after // it. MCValue Disp = MCValue::get(0, 0, 0); - if (Lexer.isNot(AsmToken::LParen)) { + if (getLexer().isNot(AsmToken::LParen)) { if (ParseRelocatableExpression(Disp)) return true; // After parsing the base expression we could either have a parenthesized // memory address or not. If not, return now. If so, eat the (. - if (Lexer.isNot(AsmToken::LParen)) { + if (getLexer().isNot(AsmToken::LParen)) { Op = X86Operand::CreateMem(SegReg, Disp, 0, 0, 0); return false; } // Eat the '('. - Lexer.Lex(); + getLexer().Lex(); } else { // Okay, we have a '('. We don't know if this is an expression or not, but // so we have to eat the ( to see beyond it. - Lexer.Lex(); // Eat the '('. + getLexer().Lex(); // Eat the '('. - if (Lexer.is(AsmToken::Register) || Lexer.is(AsmToken::Comma)) { + if (getLexer().is(AsmToken::Register) || getLexer().is(AsmToken::Comma)) { // Nothing to do here, fall into the code below with the '(' part of the // memory operand consumed. } else { @@ -159,13 +159,13 @@ bool AsmParser::ParseX86MemOperand(X86Operand &Op) { // After parsing the base expression we could either have a parenthesized // memory address or not. If not, return now. If so, eat the (. - if (Lexer.isNot(AsmToken::LParen)) { + if (getLexer().isNot(AsmToken::LParen)) { Op = X86Operand::CreateMem(SegReg, Disp, 0, 0, 0); return false; } // Eat the '('. - Lexer.Lex(); + getLexer().Lex(); } } @@ -173,14 +173,14 @@ bool AsmParser::ParseX86MemOperand(X86Operand &Op) { // the rest of the memory operand. unsigned BaseReg = 0, IndexReg = 0, Scale = 0; - if (Lexer.is(AsmToken::Register)) { + if (getLexer().is(AsmToken::Register)) { if (ParseX86Register(Op)) return true; BaseReg = Op.getReg(); } - if (Lexer.is(AsmToken::Comma)) { - Lexer.Lex(); // Eat the comma. + if (getLexer().is(AsmToken::Comma)) { + getLexer().Lex(); // Eat the comma. // Following the comma we should have either an index register, or a scale // value. We don't support the later form, but we want to parse it @@ -188,20 +188,20 @@ bool AsmParser::ParseX86MemOperand(X86Operand &Op) { // // Not that even though it would be completely consistent to support syntax // like "1(%eax,,1)", the assembler doesn't. - if (Lexer.is(AsmToken::Register)) { + if (getLexer().is(AsmToken::Register)) { if (ParseX86Register(Op)) return true; IndexReg = Op.getReg(); Scale = 1; // If not specified, the scale defaults to 1. - if (Lexer.isNot(AsmToken::RParen)) { + if (getLexer().isNot(AsmToken::RParen)) { // Parse the scale amount: // ::= ',' [scale-expression] - if (Lexer.isNot(AsmToken::Comma)) + if (getLexer().isNot(AsmToken::Comma)) return true; - Lexer.Lex(); // Eat the comma. + getLexer().Lex(); // Eat the comma. - if (Lexer.isNot(AsmToken::RParen)) { + if (getLexer().isNot(AsmToken::RParen)) { int64_t ScaleVal; if (ParseAbsoluteExpression(ScaleVal)) return true; @@ -212,10 +212,10 @@ bool AsmParser::ParseX86MemOperand(X86Operand &Op) { Scale = (unsigned)ScaleVal; } } - } else if (Lexer.isNot(AsmToken::RParen)) { + } else if (getLexer().isNot(AsmToken::RParen)) { // Otherwise we have the unsupported form of a scale amount without an // index. - SMLoc Loc = Lexer.getLoc(); + SMLoc Loc = getLexer().getTok().getLoc(); int64_t Value; if (ParseAbsoluteExpression(Value)) @@ -226,9 +226,9 @@ bool AsmParser::ParseX86MemOperand(X86Operand &Op) { } // Ok, we've eaten the memory operand, verify we have a ')' and eat it too. - if (Lexer.isNot(AsmToken::RParen)) + if (getLexer().isNot(AsmToken::RParen)) return TokError("unexpected token in memory operand"); - Lexer.Lex(); // Eat the ')'. + getLexer().Lex(); // Eat the ')'. Op = X86Operand::CreateMem(SegReg, Disp, BaseReg, IndexReg, Scale); return false; @@ -247,14 +247,14 @@ static bool MatchX86Inst(const StringRef &Name, bool AsmParser::ParseX86InstOperands(const StringRef &InstName, MCInst &Inst) { llvm::SmallVector Operands; - if (Lexer.isNot(AsmToken::EndOfStatement)) { + if (getLexer().isNot(AsmToken::EndOfStatement)) { // Read the first operand. Operands.push_back(X86Operand()); if (ParseX86Operand(Operands.back())) return true; - while (Lexer.is(AsmToken::Comma)) { - Lexer.Lex(); // Eat the comma. + while (getLexer().is(AsmToken::Comma)) { + getLexer().Lex(); // Eat the comma. // Parse and remember the operand. Operands.push_back(X86Operand()); -- cgit v1.1