mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
796cb4447f
This benchmark had good enough runtime with the original 10x loop multiplier. Lowering it further exposed the setup overhead of creating the 10k element array. Reverting back.
39 lines
1.2 KiB
Swift
39 lines
1.2 KiB
Swift
//===--- 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) {
|
|
var array = [Int](repeating: 0, count: 10000)
|
|
for _ in 0..<10*N {
|
|
for i in 0..<array.count {
|
|
storeArrayElement(&array, i)
|
|
}
|
|
}
|
|
}
|