Files
swift-mirror/stdlib/runtime/GlobalObjects.cpp
Greg Parker c6a88262cf [stdlib] Scrap bit-rotted FastEntryPoints.s. Rewrite refcounts using __atomic.
Generated code on x86_64 for swift_retain and swift_release and 
swift_allocObject are unchanged. arm64 is improved by using weaker 
memory barriers, fixing rdar://17423624.


Swift SVN r22887
2014-10-23 08:22:48 +00:00

40 lines
1.3 KiB
C++

//===--- GlobalObjects.cpp - Statically-initialized objects ---------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
//
// Objects that are allocated at global scope instead of on the heap,
// and statically initialized to avoid synchronization costs, are
// defined here.
//
//===----------------------------------------------------------------------===//
#include "../shims/GlobalObjects.h"
#include "swift/Runtime/Metadata.h"
namespace swift {
// _direct type metadata for Swift._EmptyArrayStorage
extern "C" FullMetadata<ClassMetadata> _TMdCSs18_EmptyArrayStorage;
extern "C" _SwiftEmptyArrayStorage _swiftEmptyArrayStorage = {
// HeapObject header;
{
&_TMdCSs18_EmptyArrayStorage, // is-a pointer
},
// _SwiftArrayBodyStorage body;
{
0, // int count;
1 // unsigned int _capacityAndFlags; 1 means elementTypeIsBridgedVerbatim
}
};
}