mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-11 08:07:22 +00:00
f1e29d4c21
instructions onto the target specific parser, which can do a better job. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110889 91177308-0d34-0410-b5e6-96231b3b80d8
89 lines
3.3 KiB
C++
89 lines
3.3 KiB
C++
//===-- llvm/Target/TargetAsmParser.h - Target Assembly Parser --*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_TARGET_TARGETPARSER_H
|
|
#define LLVM_TARGET_TARGETPARSER_H
|
|
|
|
#include "llvm/MC/MCParser/MCAsmParserExtension.h"
|
|
|
|
namespace llvm {
|
|
class MCInst;
|
|
class StringRef;
|
|
class Target;
|
|
class SMLoc;
|
|
class AsmToken;
|
|
class MCParsedAsmOperand;
|
|
template <typename T> class SmallVectorImpl;
|
|
|
|
/// TargetAsmParser - Generic interface to target specific assembly parsers.
|
|
class TargetAsmParser : public MCAsmParserExtension {
|
|
TargetAsmParser(const TargetAsmParser &); // DO NOT IMPLEMENT
|
|
void operator=(const TargetAsmParser &); // DO NOT IMPLEMENT
|
|
protected: // Can only create subclasses.
|
|
TargetAsmParser(const Target &);
|
|
|
|
/// The Target that this machine was created for.
|
|
const Target &TheTarget;
|
|
|
|
/// The current set of available features.
|
|
unsigned AvailableFeatures;
|
|
|
|
public:
|
|
virtual ~TargetAsmParser();
|
|
|
|
const Target &getTarget() const { return TheTarget; }
|
|
|
|
unsigned getAvailableFeatures() const { return AvailableFeatures; }
|
|
void setAvailableFeatures(unsigned Value) { AvailableFeatures = Value; }
|
|
|
|
/// ParseInstruction - Parse one assembly instruction.
|
|
///
|
|
/// The parser is positioned following the instruction name. The target
|
|
/// specific instruction parser should parse the entire instruction and
|
|
/// construct the appropriate MCInst, or emit an error. On success, the entire
|
|
/// line should be parsed up to and including the end-of-statement token. On
|
|
/// failure, the parser is not required to read to the end of the line.
|
|
//
|
|
/// \param Name - The instruction name.
|
|
/// \param NameLoc - The source location of the name.
|
|
/// \param Operands [out] - The list of parsed operands, this returns
|
|
/// ownership of them to the caller.
|
|
/// \return True on failure.
|
|
virtual bool ParseInstruction(StringRef Name, SMLoc NameLoc,
|
|
SmallVectorImpl<MCParsedAsmOperand*> &Operands) = 0;
|
|
|
|
/// ParseDirective - Parse a target specific assembler directive
|
|
///
|
|
/// The parser is positioned following the directive name. The target
|
|
/// specific directive parser should parse the entire directive doing or
|
|
/// recording any target specific work, or return true and do nothing if the
|
|
/// directive is not target specific. If the directive is specific for
|
|
/// the target, the entire line is parsed up to and including the
|
|
/// end-of-statement token and false is returned.
|
|
///
|
|
/// \param DirectiveID - the identifier token of the directive.
|
|
virtual bool ParseDirective(AsmToken DirectiveID) = 0;
|
|
|
|
/// MatchInstruction - Recognize a series of operands of a parsed instruction
|
|
/// as an actual MCInst. This returns false and fills in Inst on success and
|
|
/// returns true on failure to match.
|
|
///
|
|
/// On failure, the target parser is responsible for emitting a diagnostic
|
|
/// explaining the match failure.
|
|
virtual bool
|
|
MatchInstruction(SMLoc IDLoc,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands,
|
|
MCInst &Inst) = 0;
|
|
|
|
};
|
|
|
|
} // End llvm namespace
|
|
|
|
#endif
|