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//===--- CxxSpanTests.swift ----------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2023 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
// FIXME swift-ci linux tests do not support std::span
#if os(Linux)
public let benchmarks = [BenchmarkInfo]()
#else
import CxxStdlibPerformance
import CxxStdlib // FIXME(rdar://128520766): this import should be redundant
let iterRepeatFactor = 7
public let benchmarks = [
BenchmarkInfo(
name: "CxxSpanTests.raw.iterator",
runFunction: run_CxxSpanOfU32_RawIterator,
tags: [.validation, .bridging, .cxxInterop],
setUpFunction: makeSpanOnce),
BenchmarkInfo(
name: "CxxSpanTests.index.subscript",
runFunction: run_CxxSpanOfU32_IndexAndSubscript,
tags: [.validation, .bridging, .cxxInterop],
setUpFunction: makeSpanOnce),
BenchmarkInfo(
name: "CxxSpanTests.for.loop",
runFunction: run_CxxSpanOfU32_ForInLoop,
tags: [.validation, .bridging, .cxxInterop],
setUpFunction: makeSpanOnce),
BenchmarkInfo(
name: "CxxSpanTests.map",
runFunction: run_CxxSpanOfU32_MapSpan,
tags: [.validation, .bridging, .cxxInterop],
setUpFunction: makeSpanOnce),
BenchmarkInfo(
name: "CxxSpanTests.filter",
runFunction: run_CxxSpanOfU32_FilterSpan,
tags: [.validation, .bridging, .cxxInterop],
setUpFunction: makeSpanOnce),
BenchmarkInfo(
name: "CxxSpanTests.reduce",
runFunction: run_CxxSpanOfU32_ReduceSpan,
tags: [.validation, .bridging, .cxxInterop],
setUpFunction: makeSpanOnce),
]
func makeSpanOnce() {
initSpan()
}
@inline(never)
public func run_CxxSpanOfU32_RawIterator(_ n: Int) {
var sum: UInt32 = 0
for _ in 0..<(n * iterRepeatFactor * 2) {
var b = span.__beginUnsafe()
let e = span.__endUnsafe()
while b != e {
sum = sum &+ b.pointee
b = b.successor()
}
}
blackHole(sum)
}
@inline(never)
public func run_CxxSpanOfU32_IndexAndSubscript(_ n: Int) {
var sum: UInt32 = 0
for _ in 0..<(n * iterRepeatFactor * 2) {
for i in 0..<span.size() {
sum = sum &+ span[i]
}
}
blackHole(sum)
}
@inline(never)
public func run_CxxSpanOfU32_ForInLoop(_ n: Int) {
var sum: UInt32 = 0
for _ in 0..<(n * iterRepeatFactor * 2) {
for x in span {
sum = sum &+ x
}
}
blackHole(sum)
}
@inline(never)
public func run_CxxSpanOfU32_MapSpan(_ n: Int) {
for _ in 0..<(n * iterRepeatFactor) {
let result = span.map { $0 &+ 5 }
blackHole(result)
}
}
@inline(never)
public func run_CxxSpanOfU32_FilterSpan(_ n: Int) {
for _ in 0..<(n * iterRepeatFactor) {
let result = span.filter { $0 % 2 == 0 }
blackHole(result)
}
}
@inline(never)
public func run_CxxSpanOfU32_ReduceSpan(_ n: Int) {
var sum: UInt32 = 0
for _ in 0..<(n * iterRepeatFactor * 2) {
sum = sum &+ span.reduce(sum, &+)
}
blackHole(sum)
}
#endif
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