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Diffstat (limited to 'contrib/llvm/include/llvm/Target/TargetAsmParser.h')
-rw-r--r-- | contrib/llvm/include/llvm/Target/TargetAsmParser.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/contrib/llvm/include/llvm/Target/TargetAsmParser.h b/contrib/llvm/include/llvm/Target/TargetAsmParser.h new file mode 100644 index 0000000..85315c1 --- /dev/null +++ b/contrib/llvm/include/llvm/Target/TargetAsmParser.h @@ -0,0 +1,76 @@ +//===-- 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 + +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 { + TargetAsmParser(const TargetAsmParser &); // DO NOT IMPLEMENT + void operator=(const TargetAsmParser &); // DO NOT IMPLEMENT +protected: // Can only create subclasses. + TargetAsmParser(const Target &); + + /// TheTarget - The Target that this machine was created for. + const Target &TheTarget; + +public: + virtual ~TargetAsmParser(); + + const Target &getTarget() const { return TheTarget; } + + /// 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(const 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. + virtual bool + MatchInstruction(const SmallVectorImpl<MCParsedAsmOperand*> &Operands, + MCInst &Inst) = 0; + +}; + +} // End llvm namespace + +#endif |