| //===--- ArraySetElement.swift ---------------------------------------------===// |
| // |
| // This source file is part of the Swift.org open source project |
| // |
| // Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors |
| // Licensed under Apache License v2.0 with Runtime Library Exception |
| // |
| // See https://swift.org/LICENSE.txt for license information |
| // See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors |
| // |
| //===----------------------------------------------------------------------===// |
| |
| import TestsUtils |
| |
| // 33% isUniquelyReferenced |
| // 15% swift_rt_swift_isUniquelyReferencedOrPinned_nonNull_native |
| // 18% swift_isUniquelyReferencedOrPinned_nonNull_native |
| public var ArraySetElement = BenchmarkInfo( |
| name: "ArraySetElement", |
| runFunction: run_ArraySetElement, |
| tags: [.runtime, .cpubench] |
| ) |
| |
| // This is an effort to defeat isUniquelyReferenced optimization. Ideally |
| // microbenchmarks list this should be written in C. |
| @inline(never) |
| func storeArrayElement(_ array: inout [Int], _ i: Int) { |
| array[i] = i |
| } |
| |
| public func run_ArraySetElement(_ N: Int) { |
| let scale = 10 |
| var array = [Int](repeating: 0, count: 10000) |
| for _ in 0..<N*scale { |
| for i in 0..<array.count { |
| storeArrayElement(&array, i) |
| } |
| } |
| } |