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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74496 91177308-0d34-0410-b5e6-96231b3b80d8
105 lines
3.0 KiB
C++
105 lines
3.0 KiB
C++
//===- AsmParser.h - Parser for Assembly Files ------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This class declares the parser for assembly files.
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//
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//===----------------------------------------------------------------------===//
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#ifndef ASMPARSER_H
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#define ASMPARSER_H
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#include "AsmLexer.h"
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#include "llvm/MC/MCStreamer.h"
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namespace llvm {
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class AsmExpr;
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class MCContext;
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class MCInst;
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class MCStreamer;
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class MCValue;
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class AsmParser {
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AsmLexer Lexer;
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MCContext &Ctx;
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MCStreamer &Out;
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struct X86Operand;
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public:
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AsmParser(SourceMgr &SM, MCContext &ctx, MCStreamer &OutStr)
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: Lexer(SM), Ctx(ctx), Out(OutStr) {}
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~AsmParser() {}
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bool Run();
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private:
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bool ParseStatement();
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void Warning(SMLoc L, const char *Msg);
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bool Error(SMLoc L, const char *Msg);
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bool TokError(const char *Msg);
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void EatToEndOfStatement();
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bool ParseAssignment(const char *Name, bool IsDotSet);
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/// ParseExpression - Parse a general assembly expression.
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///
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/// @param Res - The resulting expression. The pointer value is null on error.
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/// @result - False on success.
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bool ParseExpression(AsmExpr *&Res);
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/// ParseAbsoluteExpression - Parse an expression which must evaluate to an
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/// absolute value.
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///
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/// @param Res - The value of the absolute expression. The result is undefined
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/// on error.
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/// @result - False on success.
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bool ParseAbsoluteExpression(int64_t &Res);
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/// ParseRelocatableExpression - Parse an expression which must be
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/// relocatable.
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///
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/// @param Res - The relocatable expression value. The result is undefined on
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/// error.
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/// @result - False on success.
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bool ParseRelocatableExpression(MCValue &Res);
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bool ParsePrimaryExpr(AsmExpr *&Res);
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bool ParseBinOpRHS(unsigned Precedence, AsmExpr *&Res);
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bool ParseParenExpr(AsmExpr *&Res);
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// X86 specific.
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bool ParseX86InstOperands(MCInst &Inst);
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bool ParseX86Operand(X86Operand &Op);
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bool ParseX86MemOperand(X86Operand &Op);
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// Directive Parsing.
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bool ParseDirectiveDarwinSection(); // Darwin specific ".section".
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bool ParseDirectiveSectionSwitch(const char *Section,
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const char *Directives = 0);
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bool ParseDirectiveAscii(bool ZeroTerminated); // ".ascii", ".asciiz"
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bool ParseDirectiveValue(unsigned Size); // ".byte", ".long", ...
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bool ParseDirectiveFill(); // ".fill"
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bool ParseDirectiveSpace(); // ".space"
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bool ParseDirectiveSet(); // ".set"
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bool ParseDirectiveOrg(); // ".org"
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// ".align{,32}", ".p2align{,w,l}"
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bool ParseDirectiveAlign(bool IsPow2, unsigned ValueSize);
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/// ParseDirectiveSymbolAttribute - Parse a directive like ".globl" which
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/// accepts a single symbol (which should be a label or an external).
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bool ParseDirectiveSymbolAttribute(MCStreamer::SymbolAttr Attr);
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};
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} // end namespace llvm
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#endif
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