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NBKFlexibleWidth+Shifts.swift
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//=----------------------------------------------------------------------------=
// This source file is part of the Numberick open source project.
//
// Copyright (c) 2023 Oscar Byström Ericsson
// Licensed under Apache License, Version 2.0
//
// See http://www.apache.org/licenses/LICENSE-2.0 for license information.
//=----------------------------------------------------------------------------=
#if !DEBUG
import NBKCoreKit
import NBKFlexibleWidthKit
import XCTest
private typealias X = [UInt]
private typealias X64 = [UInt64]
private typealias X32 = [UInt32]
//*============================================================================*
// MARK: * NBK x Flexible Width x Shifts x UIntXL
//*============================================================================*
final class NBKFlexibleWidthBenchmarksOnShiftsAsUIntXL: XCTestCase {
typealias T = UIntXL
//=------------------------------------------------------------------------=
// MARK: Tests x Left
//=------------------------------------------------------------------------=
func testBitShiftingLeft() {
var lhs = NBK.blackHoleIdentity(T(x64:[~0, ~1, ~2, ~3] as X64))
var rhs = NBK.blackHoleIdentity(UInt.bitWidth * 3/2)
for _ in 0 ..< 1_000_000 {
NBK.blackHole(lhs << rhs)
NBK.blackHoleInoutIdentity(&lhs)
NBK.blackHoleInoutIdentity(&rhs)
}
}
func testBitShiftingLeftByWords() {
var lhs = NBK.blackHoleIdentity(T(x64:[~0, ~1, ~2, ~3] as X64))
var rhs = NBK.blackHoleIdentity((major: 1, minor: UInt.bitWidth/2))
for _ in 0 ..< 1_000_000 {
NBK.blackHole(lhs.bitShiftedLeft(major: rhs.major))
NBK.blackHoleInoutIdentity(&lhs)
NBK.blackHoleInoutIdentity(&rhs)
}
}
func testBitShiftingLeftByWordsAndBits() {
var lhs = NBK.blackHoleIdentity(T(x64:[~0, ~1, ~2, ~3] as X64))
var rhs = NBK.blackHoleIdentity((major: 1, minor: UInt.bitWidth/2))
for _ in 0 ..< 1_000_000 {
NBK.blackHole(lhs.bitShiftedLeft(major: rhs.major, minor: rhs.minor))
NBK.blackHoleInoutIdentity(&lhs)
NBK.blackHoleInoutIdentity(&rhs)
}
}
//=------------------------------------------------------------------------=
// MARK: Tests x Right
//=------------------------------------------------------------------------=
func testBitShiftingRight() {
var lhs = NBK.blackHoleIdentity(T(x64:[~0, ~1, ~2, ~3] as X64))
var rhs = NBK.blackHoleIdentity(UInt.bitWidth * 3/2)
for _ in 0 ..< 1_000_000 {
NBK.blackHole(lhs >> rhs)
NBK.blackHoleInoutIdentity(&lhs)
NBK.blackHoleInoutIdentity(&rhs)
}
}
func testBitShiftingRightByWords() {
var lhs = NBK.blackHoleIdentity(T(x64:[~0, ~1, ~2, ~3] as X64))
var rhs = NBK.blackHoleIdentity((major: 1, minor: UInt.bitWidth/2))
for _ in 0 ..< 1_000_000 {
NBK.blackHole(lhs.bitShiftedRight(major: rhs.major))
NBK.blackHoleInoutIdentity(&lhs)
NBK.blackHoleInoutIdentity(&rhs)
}
}
func testBitShiftingRightByWordsAndBits() {
var lhs = NBK.blackHoleIdentity(T(x64:[~0, ~1, ~2, ~3] as X64))
var rhs = NBK.blackHoleIdentity((major: 1, minor: UInt.bitWidth/2))
for _ in 0 ..< 1_000_000 {
NBK.blackHole(lhs.bitShiftedRight(major: rhs.major, minor: rhs.minor))
NBK.blackHoleInoutIdentity(&lhs)
NBK.blackHoleInoutIdentity(&rhs)
}
}
//=------------------------------------------------------------------------=
// MARK: Tests x In Both Directions
//=------------------------------------------------------------------------=
func testBitShiftingInBothDirectionsInout() {
var lhs = NBK.blackHoleIdentity(T(x64:[~0, ~1, ~2, ~3] as X64))
var rhs = NBK.blackHoleIdentity(UInt.bitWidth * 3/2)
for _ in 0 ..< 1_000_000 {
NBK.blackHole(lhs.bitShiftLeft (by: rhs))
NBK.blackHoleInoutIdentity(&lhs)
NBK.blackHoleInoutIdentity(&rhs)
NBK.blackHole(lhs.bitShiftRight(by: rhs))
NBK.blackHoleInoutIdentity(&lhs)
NBK.blackHoleInoutIdentity(&rhs)
}
}
func testBitShiftingInBothDirectionsByWordsInout() {
var lhs = NBK.blackHoleIdentity(T(x64:[~0, ~1, ~2, ~3] as X64))
var rhs = NBK.blackHoleIdentity((major: 1, minor: UInt.bitWidth/2))
for _ in 0 ..< 1_000_000 {
NBK.blackHole(lhs.bitShiftLeft (major: rhs.major))
NBK.blackHoleInoutIdentity(&lhs)
NBK.blackHoleInoutIdentity(&rhs)
NBK.blackHole(lhs.bitShiftRight(major: rhs.major))
NBK.blackHoleInoutIdentity(&lhs)
NBK.blackHoleInoutIdentity(&rhs)
}
}
func testBitShiftingInBothDirectionsByWordsAndBitsInout() {
var lhs = NBK.blackHoleIdentity(T(x64:[~0, ~1, ~2, ~3] as X64))
var rhs = NBK.blackHoleIdentity((major: 1, minor: UInt.bitWidth/2))
for _ in 0 ..< 1_000_000 {
NBK.blackHole(lhs.bitShiftLeft (major: rhs.major, minor: rhs.minor))
NBK.blackHoleInoutIdentity(&lhs)
NBK.blackHoleInoutIdentity(&rhs)
NBK.blackHole(lhs.bitShiftRight(major: rhs.major, minor: rhs.minor))
NBK.blackHoleInoutIdentity(&lhs)
NBK.blackHoleInoutIdentity(&rhs)
}
}
}
#endif