--- /dev/null
+//===- BitCodeEnums.h - Core enums for the bitstream format -----*- 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 header defines "core" bitstream enum values.
+// It has been separated from the other header that defines bitstream enum
+// values, BitCodes.h, to allow tools to track changes to the various
+// bitstream and bitcode enums without needing to fully or partially build
+// LLVM itself.
+//
+// The enum values defined in this file should be considered permanent. If
+// new features are added, they should have values added at the end of the
+// respective lists.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_BITSTREAM_BITCODEENUMS_H
+#define LLVM_BITSTREAM_BITCODEENUMS_H
+
+namespace llvm {
+/// Offsets of the 32-bit fields of bitstream wrapper header.
+enum BitstreamWrapperHeader : unsigned {
+ BWH_MagicField = 0 * 4,
+ BWH_VersionField = 1 * 4,
+ BWH_OffsetField = 2 * 4,
+ BWH_SizeField = 3 * 4,
+ BWH_CPUTypeField = 4 * 4,
+ BWH_HeaderSize = 5 * 4
+};
+
+namespace bitc {
+enum StandardWidths {
+ BlockIDWidth = 8, // We use VBR-8 for block IDs.
+ CodeLenWidth = 4, // Codelen are VBR-4.
+ BlockSizeWidth = 32 // BlockSize up to 2^32 32-bit words = 16GB per block.
+};
+
+// The standard abbrev namespace always has a way to exit a block, enter a
+// nested block, define abbrevs, and define an unabbreviated record.
+enum FixedAbbrevIDs {
+ END_BLOCK = 0, // Must be zero to guarantee termination for broken bitcode.
+ ENTER_SUBBLOCK = 1,
+
+ /// DEFINE_ABBREV - Defines an abbrev for the current block. It consists
+ /// of a vbr5 for # operand infos. Each operand info is emitted with a
+ /// single bit to indicate if it is a literal encoding. If so, the value is
+ /// emitted with a vbr8. If not, the encoding is emitted as 3 bits followed
+ /// by the info value as a vbr5 if needed.
+ DEFINE_ABBREV = 2,
+
+ // UNABBREV_RECORDs are emitted with a vbr6 for the record code, followed by
+ // a vbr6 for the # operands, followed by vbr6's for each operand.
+ UNABBREV_RECORD = 3,
+
+ // This is not a code, this is a marker for the first abbrev assignment.
+ FIRST_APPLICATION_ABBREV = 4
+};
+
+/// StandardBlockIDs - All bitcode files can optionally include a BLOCKINFO
+/// block, which contains metadata about other blocks in the file.
+enum StandardBlockIDs {
+ /// BLOCKINFO_BLOCK is used to define metadata about blocks, for example,
+ /// standard abbrevs that should be available to all blocks of a specified
+ /// ID.
+ BLOCKINFO_BLOCK_ID = 0,
+
+ // Block IDs 1-7 are reserved for future expansion.
+ FIRST_APPLICATION_BLOCKID = 8
+};
+
+/// BlockInfoCodes - The blockinfo block contains metadata about user-defined
+/// blocks.
+enum BlockInfoCodes {
+ // DEFINE_ABBREV has magic semantics here, applying to the current SETBID'd
+ // block, instead of the BlockInfo block.
+
+ BLOCKINFO_CODE_SETBID = 1, // SETBID: [blockid#]
+ BLOCKINFO_CODE_BLOCKNAME = 2, // BLOCKNAME: [name]
+ BLOCKINFO_CODE_SETRECORDNAME = 3 // BLOCKINFO_CODE_SETRECORDNAME:
+ // [id, name]
+};
+
+} // namespace bitc
+} // namespace llvm
+
+#endif
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringExtras.h"
+#include "llvm/Bitstream/BitCodeEnums.h"
#include "llvm/Support/DataTypes.h"
#include "llvm/Support/ErrorHandling.h"
#include <cassert>
namespace llvm {
-/// Offsets of the 32-bit fields of bitstream wrapper header.
-enum BitstreamWrapperHeader : unsigned {
- BWH_MagicField = 0 * 4,
- BWH_VersionField = 1 * 4,
- BWH_OffsetField = 2 * 4,
- BWH_SizeField = 3 * 4,
- BWH_CPUTypeField = 4 * 4,
- BWH_HeaderSize = 5 * 4
-};
-
-namespace bitc {
- enum StandardWidths {
- BlockIDWidth = 8, // We use VBR-8 for block IDs.
- CodeLenWidth = 4, // Codelen are VBR-4.
- BlockSizeWidth = 32 // BlockSize up to 2^32 32-bit words = 16GB per block.
- };
-
- // The standard abbrev namespace always has a way to exit a block, enter a
- // nested block, define abbrevs, and define an unabbreviated record.
- enum FixedAbbrevIDs {
- END_BLOCK = 0, // Must be zero to guarantee termination for broken bitcode.
- ENTER_SUBBLOCK = 1,
-
- /// DEFINE_ABBREV - Defines an abbrev for the current block. It consists
- /// of a vbr5 for # operand infos. Each operand info is emitted with a
- /// single bit to indicate if it is a literal encoding. If so, the value is
- /// emitted with a vbr8. If not, the encoding is emitted as 3 bits followed
- /// by the info value as a vbr5 if needed.
- DEFINE_ABBREV = 2,
-
- // UNABBREV_RECORDs are emitted with a vbr6 for the record code, followed by
- // a vbr6 for the # operands, followed by vbr6's for each operand.
- UNABBREV_RECORD = 3,
-
- // This is not a code, this is a marker for the first abbrev assignment.
- FIRST_APPLICATION_ABBREV = 4
- };
-
- /// StandardBlockIDs - All bitcode files can optionally include a BLOCKINFO
- /// block, which contains metadata about other blocks in the file.
- enum StandardBlockIDs {
- /// BLOCKINFO_BLOCK is used to define metadata about blocks, for example,
- /// standard abbrevs that should be available to all blocks of a specified
- /// ID.
- BLOCKINFO_BLOCK_ID = 0,
-
- // Block IDs 1-7 are reserved for future expansion.
- FIRST_APPLICATION_BLOCKID = 8
- };
-
- /// BlockInfoCodes - The blockinfo block contains metadata about user-defined
- /// blocks.
- enum BlockInfoCodes {
- // DEFINE_ABBREV has magic semantics here, applying to the current SETBID'd
- // block, instead of the BlockInfo block.
-
- BLOCKINFO_CODE_SETBID = 1, // SETBID: [blockid#]
- BLOCKINFO_CODE_BLOCKNAME = 2, // BLOCKNAME: [name]
- BLOCKINFO_CODE_SETRECORDNAME = 3 // BLOCKINFO_CODE_SETRECORDNAME:
- // [id, name]
- };
-
-} // End bitc namespace
-
/// BitCodeAbbrevOp - This describes one or more operands in an abbreviation.
/// This is actually a union of two different things:
/// 1. It could be a literal integer value ("the operand is always 17").
OperandList.push_back(OpInfo);
}
};
-} // End llvm namespace
+} // namespace llvm
#endif