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types don't need atomic inc/dec, they are local to an llvmcontext.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91873 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-12-22 01:17:43 +00:00
parent ec72e32fb0
commit 8a8f818595
1 changed files with 3 additions and 6 deletions
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9
include/llvm/Type.h
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@ -7,14 +7,12 @@
// //
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
#ifndef LLVM_TYPE_H #ifndef LLVM_TYPE_H
#define LLVM_TYPE_H #define LLVM_TYPE_H
#include "llvm/AbstractTypeUser.h" #include "llvm/AbstractTypeUser.h"
#include "llvm/Support/Casting.h" #include "llvm/Support/Casting.h"
#include "llvm/System/DataTypes.h" #include "llvm/System/DataTypes.h"
#include "llvm/System/Atomic.h"
#include "llvm/ADT/GraphTraits.h" #include "llvm/ADT/GraphTraits.h"
#include <string> #include <string>
#include <vector> #include <vector>
@ -104,7 +102,7 @@ private:
/// has no AbstractTypeUsers, the type is deleted. This is only sensical for /// has no AbstractTypeUsers, the type is deleted. This is only sensical for
/// derived types. /// derived types.
/// ///
mutable sys::cas_flag RefCount; mutable unsigned RefCount;
/// Context - This refers to the LLVMContext in which this type was uniqued. /// Context - This refers to the LLVMContext in which this type was uniqued.
LLVMContext &Context; LLVMContext &Context;
@ -401,7 +399,7 @@ public:
void addRef() const { void addRef() const {
assert(isAbstract() && "Cannot add a reference to a non-abstract type!"); assert(isAbstract() && "Cannot add a reference to a non-abstract type!");
sys::AtomicIncrement(&RefCount); ++RefCount;
} }
void dropRef() const { void dropRef() const {
@ -410,8 +408,7 @@ public:
// If this is the last PATypeHolder using this object, and there are no // If this is the last PATypeHolder using this object, and there are no
// PATypeHandles using it, the type is dead, delete it now. // PATypeHandles using it, the type is dead, delete it now.
sys::cas_flag OldCount = sys::AtomicDecrement(&RefCount); if (RefCount-- == 0 && AbstractTypeUsers.empty())
if (OldCount == 0 && AbstractTypeUsers.empty())
this->destroy(); this->destroy();
} }