forked from OSchip/llvm-project
44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
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//===-- llvm/CodeGen/DIEHash.h - Dwarf Hashing Framework -------*- C++ -*--===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains support for DWARF4 hashing of DIEs.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/MD5.h"
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namespace llvm {
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class CompileUnit;
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/// \brief An object containing the capability of hashing and adding hash
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/// attributes onto a DIE.
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class DIEHash {
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public:
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/// \brief Computes the ODR signature
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uint64_t computeDIEODRSignature(DIE *Die);
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// Helper routines to process parts of a DIE.
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private:
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/// \brief Adds the parent context of \param Die to the hash.
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void addParentContext(DIE *Die);
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// Routines that add DIEValues to the hash.
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private:
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/// \brief Encodes and adds \param Value to the hash as a ULEB128.
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void addULEB128(uint64_t Value);
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/// \brief Adds \param Str to the hash and includes a NULL byte.
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void addString(StringRef Str);
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private:
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MD5 Hash;
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};
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}
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