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[benchmark] Add another test to floating point conversion benchmark #33975

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Merged
merged 3 commits into from
Sep 24, 2020
Merged

[benchmark] Add another test to floating point conversion benchmark #33975

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9488774
[benchmark] Add another test to floating point conversion benchmark
xwu Sep 16, 2020
26f3c81
[benchmark] Add another floating point conversion benchmark
xwu Sep 16, 2020
cb96bfb
[benchmark] Tweak naming and workload for two new tests
xwu Sep 17, 2020
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47 changes: 41 additions & 6 deletions benchmark/single-source/FloatingPointConversion.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,16 @@ public let FloatingPointConversion = [
runFunction: run_ConvertFloatingPoint_MockFloat64ToDouble,
tags: [.validation, .api],
setUpFunction: { blackHole(mockFloat64s) }),
BenchmarkInfo(
name: "ConvertFloatingPoint.MockFloat64Exactly",
runFunction: run_ConvertFloatingPoint_MockFloat64Exactly,
tags: [.validation, .api],
setUpFunction: { blackHole(mockFloat64s) }),
BenchmarkInfo(
name: "ConvertFloatingPoint.MockFloat64Exactly2",
runFunction: run_ConvertFloatingPoint_MockFloat64Exactly2,
tags: [.validation, .api],
setUpFunction: { blackHole(mockFloat64s) }),
BenchmarkInfo(
name: "ConvertFloatingPoint.MockFloat64ToInt64",
runFunction: run_ConvertFloatingPoint_MockFloat64ToInt64,
Expand Down Expand Up @@ -130,6 +140,11 @@ struct MockFloat64: MockBinaryFloatingPoint {
init(_ _value: Double) { self._value = _value }
}

struct MockFloat32: MockBinaryFloatingPoint {
var _value: Float
init(_ _value: Float) { self._value = _value }
}

let doubles = [
1.8547832857295, 26.321549267719135, 98.9544480962058, 73.70286973782363,
82.04918555938816, 76.38902969312758, 46.35647857011161, 64.0821426030317,
Expand All @@ -147,20 +162,40 @@ let doubles = [

let mockFloat64s = doubles.map { MockFloat64($0) }

// See also: test/SILOptimizer/floating_point_conversion.swift

@inline(never)
public func run_ConvertFloatingPoint_MockFloat64ToDouble(_ N: Int) {
for _ in 0..<(N * 100) {
for element in mockFloat64s {
let f = Double(identity(element))
blackHole(f)
}
}
}

@inline(__always)
func convert<
T: BinaryFloatingPoint, U: BinaryFloatingPoint
>(_ value: T, to: U.Type) -> U {
U(value)
>(exactly value: T, to: U.Type) -> U? {
U(exactly: value)
}

// See also: test/SILOptimizer/floating_point_conversion.swift
@inline(never)
public func run_ConvertFloatingPoint_MockFloat64Exactly(_ N: Int) {
for _ in 0..<(N * 25) {
for element in mockFloat64s {
let f = convert(exactly: identity(element), to: Double.self)
blackHole(f)
}
}
}

@inline(never)
public func run_ConvertFloatingPoint_MockFloat64ToDouble(_ N: Int) {
for _ in 0..<(N * 100) {
public func run_ConvertFloatingPoint_MockFloat64Exactly2(_ N: Int) {
for _ in 0..<(N * 25) {
for element in mockFloat64s {
let f = Double(identity(element))
let f = convert(exactly: identity(element), to: MockFloat32.self)
blackHole(f)
}
}
Expand Down