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9177107940
dispatch_once calls on every load from it Performance improvements, as reported by the perf testing buildbot: Histogram -18.81% TwoSum -17.42% RGBHistogram -9.65% Regressions: InsertionSort 5.59% ArrayOfRef 3.99% SwiftStructuresInsertionSort 5.29% PrimeNum 6.09% These regressions are bogus. The tests that "regressed" don't do any hashing at all. Swift SVN r23995
43 lines
1.3 KiB
C++
43 lines
1.3 KiB
C++
//===--- GlobalObjects.cpp - Statically-initialized objects ---------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// Objects that are allocated at global scope instead of on the heap,
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// and statically initialized to avoid synchronization costs, are
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// defined here.
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//
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//===----------------------------------------------------------------------===//
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#include "../shims/GlobalObjects.h"
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#include "swift/Runtime/Metadata.h"
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namespace swift {
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// _direct type metadata for Swift._EmptyArrayStorage
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extern "C" FullMetadata<ClassMetadata> _TMdCSs18_EmptyArrayStorage;
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extern "C" _SwiftEmptyArrayStorage _swiftEmptyArrayStorage = {
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// HeapObject header;
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{
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&_TMdCSs18_EmptyArrayStorage, // is-a pointer
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},
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// _SwiftArrayBodyStorage body;
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{
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0, // int count;
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1 // unsigned int _capacityAndFlags; 1 means elementTypeIsBridgedVerbatim
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}
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};
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extern "C"
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uint64_t _swift_stdlib_HashingDetail_fixedSeedOverride = 0;
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}
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