mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 18:54:02 +01:00
14b03d1c85
This exposes better support to use a string table with a format through an actual new remark::Format, called yaml-strtab. This can now be used with -fsave-optimization-record=yaml-strtab. llvm-svn: 366849
81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
//===-- llvm/Remarks/Remark.h - The remark type -----------------*- C++/-*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file provides an interface for parsing remarks in LLVM.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_REMARKS_REMARK_PARSER_H
|
|
#define LLVM_REMARKS_REMARK_PARSER_H
|
|
|
|
#include "llvm/ADT/SmallVector.h"
|
|
#include "llvm/ADT/StringRef.h"
|
|
#include "llvm/Remarks/Remark.h"
|
|
#include "llvm/Remarks/RemarkFormat.h"
|
|
#include "llvm/Support/Error.h"
|
|
#include <memory>
|
|
|
|
namespace llvm {
|
|
namespace remarks {
|
|
|
|
struct ParserImpl;
|
|
struct ParsedStringTable;
|
|
|
|
class EndOfFileError : public ErrorInfo<EndOfFileError> {
|
|
public:
|
|
static char ID;
|
|
|
|
EndOfFileError() {}
|
|
|
|
void log(raw_ostream &OS) const override { OS << "End of file reached."; }
|
|
std::error_code convertToErrorCode() const override {
|
|
return inconvertibleErrorCode();
|
|
}
|
|
};
|
|
|
|
/// Parser used to parse a raw buffer to remarks::Remark objects.
|
|
struct Parser {
|
|
/// The format of the parser.
|
|
Format ParserFormat;
|
|
|
|
Parser(Format ParserFormat) : ParserFormat(ParserFormat) {}
|
|
|
|
/// If no error occurs, this returns a valid Remark object.
|
|
/// If an error of type EndOfFileError occurs, it is safe to recover from it
|
|
/// by stopping the parsing.
|
|
/// If any other error occurs, it should be propagated to the user.
|
|
/// The pointer should never be null.
|
|
virtual Expected<std::unique_ptr<Remark>> next() = 0;
|
|
|
|
virtual ~Parser() = default;
|
|
};
|
|
|
|
/// In-memory representation of the string table parsed from a buffer (e.g. the
|
|
/// remarks section).
|
|
struct ParsedStringTable {
|
|
/// The buffer mapped from the section contents.
|
|
StringRef Buffer;
|
|
/// Collection of offsets in the buffer for each string entry.
|
|
SmallVector<size_t, 8> Offsets;
|
|
|
|
Expected<StringRef> operator[](size_t Index) const;
|
|
ParsedStringTable(StringRef Buffer);
|
|
};
|
|
|
|
Expected<std::unique_ptr<Parser>> createRemarkParser(Format ParserFormat,
|
|
StringRef Buf);
|
|
|
|
Expected<std::unique_ptr<Parser>>
|
|
createRemarkParser(Format ParserFormat, StringRef Buf,
|
|
const ParsedStringTable &StrTab);
|
|
|
|
} // end namespace remarks
|
|
} // end namespace llvm
|
|
|
|
#endif /* LLVM_REMARKS_REMARK_PARSER_H */
|