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Use IntrusiveRefCntPtr to manage the lifetime of BitCodeAbbrevs.

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This doesn't change the interface or gives additional safety but removes
a ton of retain/release boilerplate.

No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217778 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer
2014-09-15 15:44:14 +00:00
parent d189a0407d
commit 57a73c27b1
4 changed files with 19 additions and 101 deletions
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11
include/llvm/Bitcode/BitCodes.h
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@ -18,6 +18,7 @@
#ifndef LLVM_BITCODE_BITCODES_H
#define LLVM_BITCODE_BITCODES_H
#include "llvm/ADT/IntrusiveRefCntPtr.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/DataTypes.h"
#include "llvm/Support/ErrorHandling.h"
@ -161,16 +162,12 @@ template <> struct isPodLike<BitCodeAbbrevOp> { static const bool value=true; };
/// BitCodeAbbrev - This class represents an abbreviation record. An
/// abbreviation allows a complex record that has redundancy to be stored in a
/// specialized format instead of the fully-general, fully-vbr, format.
class BitCodeAbbrev {
class BitCodeAbbrev : public RefCountedBase<BitCodeAbbrev> {
SmallVector<BitCodeAbbrevOp, 32> OperandList;
unsigned char RefCount; // Number of things using this.
~BitCodeAbbrev() {}
friend class RefCountedBase; // Only RefCountedBase is allowed to delete.
public:
BitCodeAbbrev() : RefCount(1) {}
void addRef() { ++RefCount; }
void dropRef() { if (--RefCount == 0) delete this; }
unsigned getNumOperandInfos() const {
return static_cast<unsigned>(OperandList.size());
}