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gps/tools/local/circt/include/llvm/Remarks/BitstreamRemarkContainer.h
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//===-- BitstreamRemarkContainer.h - Container for remarks --------------*-===//
//
// 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 declarations for things used in the various types of
// remark containers.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_REMARKS_BITSTREAMREMARKCONTAINER_H
#define LLVM_REMARKS_BITSTREAMREMARKCONTAINER_H
#include "llvm/ADT/StringRef.h"
#include "llvm/Bitstream/BitCodes.h"
#include <cstdint>
namespace llvm {
namespace remarks {
/// The current version of the remark container.
/// Note: this is different from the version of the remark entry.
constexpr uint64_t CurrentContainerVersion = 1;
/// The magic number used for identifying remark blocks.
constexpr StringLiteral ContainerMagic("RMRK");
/// Type of the remark container.
enum class BitstreamRemarkContainerType {
/// Emit a link to an external remarks file
/// (usually as a section of the object file, to enable discovery of all
/// remarks files from the final linked object file)
/// RemarksFileExternal:
/// | Meta:
/// | | Container info
/// | | External file
RemarksFileExternal,
/// Emit metadata and remarks into a file
/// RemarksFile:
/// | Meta:
/// | | Container info
/// | | Remark version
/// | Remarks:
/// | | Remark0
/// | | Remark1
/// | | Remark2
/// | | ...
/// | Late Meta:
/// | | String table
RemarksFile,
First = RemarksFileExternal,
Last = RemarksFile
};
/// The possible blocks that will be encountered in a bitstream remark
/// container.
enum BlockIDs {
/// The metadata block is mandatory. It should always come after the
/// BLOCKINFO_BLOCK, and contains metadata that should be used when parsing
/// REMARK_BLOCKs.
/// There should always be only one META_BLOCK.
META_BLOCK_ID = bitc::FIRST_APPLICATION_BLOCKID,
/// One remark entry is represented using a REMARK_BLOCK. There can be
/// multiple REMARK_BLOCKs in the same file.
REMARK_BLOCK_ID
};
constexpr StringLiteral MetaBlockName("Meta");
constexpr StringLiteral RemarkBlockName("Remark");
/// The possible records that can be encountered in the previously described
/// blocks.
enum RecordIDs {
// Meta block records.
RECORD_META_CONTAINER_INFO = 1,
RECORD_META_REMARK_VERSION,
RECORD_META_STRTAB,
RECORD_META_EXTERNAL_FILE,
// Remark block records.
RECORD_REMARK_HEADER,
RECORD_REMARK_DEBUG_LOC,
RECORD_REMARK_HOTNESS,
RECORD_REMARK_ARG_WITH_DEBUGLOC,
RECORD_REMARK_ARG_WITHOUT_DEBUGLOC,
// Helpers.
RECORD_FIRST = RECORD_META_CONTAINER_INFO,
RECORD_LAST = RECORD_REMARK_ARG_WITHOUT_DEBUGLOC
};
constexpr StringLiteral MetaContainerInfoName("Container info");
constexpr StringLiteral MetaRemarkVersionName("Remark version");
constexpr StringLiteral MetaStrTabName("String table");
constexpr StringLiteral MetaExternalFileName("External File");
constexpr StringLiteral RemarkHeaderName("Remark header");
constexpr StringLiteral RemarkDebugLocName("Remark debug location");
constexpr StringLiteral RemarkHotnessName("Remark hotness");
constexpr StringLiteral
RemarkArgWithDebugLocName("Argument with debug location");
constexpr StringLiteral RemarkArgWithoutDebugLocName("Argument");
} // end namespace remarks
} // end namespace llvm
#endif // LLVM_REMARKS_BITSTREAMREMARKCONTAINER_H