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// RUN: %target-build-swift %s -parse-stdlib -Xfrontend -disable-access-control -o %t.out
// RUN: %target-codesign %t.out
// RUN: %target-run %t.out
// REQUIRES: executable_test
import Swift
import StdlibUnittest
var UnsafeRawPointerTestSuite = TestSuite("UnsafeRawPointerTestSuite")
UnsafeRawPointerTestSuite.test("load.unaligned.largeAlignment")
.skip(.custom({
if #available(SwiftStdlib 5.7, *) { return false } else { return true }
}, reason: "Requires standard library from Swift 5.7"))
.code {
guard #available(SwiftStdlib 5.7, *) else { return }
var offset = 3
let int128 = withUnsafeTemporaryAllocation(of: UInt8.self, capacity: 64) {
temporary -> Builtin.Int128 in
let buffer = UnsafeRawBufferPointer(temporary)
_ = temporary.initialize(from: repeatElement(0, count: 64))
// Load a 128-bit floating point value
let fp = buffer.loadUnaligned(fromByteOffset: offset, as: Builtin.FPIEEE128.self)
noop(fp)
temporary.baseAddress!.deinitialize(count: 64)
_ = temporary.initialize(from: 0..<64)
let aligned = buffer.baseAddress!.alignedUp(for: Builtin.Int128.self)
offset += buffer.baseAddress!.distance(to: aligned)
// Load and return a 128-bit integer value
return buffer.loadUnaligned(fromByteOffset: offset, as: Builtin.Int128.self)
}
withUnsafeBytes(of: int128) {
expectEqual(Int($0[0]), offset)
let lastIndex = $0.indices.last!
expectEqual(Int($0[lastIndex]), offset+lastIndex)
}
}
UnsafeRawPointerTestSuite.test("load.unaligned.largeAlignment.mutablePointer")
.skip(.custom({
if #available(SwiftStdlib 5.7, *) { return false } else { return true }
}, reason: "Requires standard library from Swift 5.7"))
.code {
guard #available(SwiftStdlib 5.7, *) else { return }
var offset = 11
let int128 = withUnsafeTemporaryAllocation(of: UInt8.self, capacity: 64) {
temporary -> Builtin.Int128 in
let buffer = UnsafeMutableRawBufferPointer(temporary)
buffer.copyBytes(from: 0..<64)
let aligned = buffer.baseAddress!.alignedUp(for: Builtin.Int128.self)
offset += buffer.baseAddress!.distance(to: aligned)
return buffer.loadUnaligned(fromByteOffset: offset, as: Builtin.Int128.self)
}
withUnsafeBytes(of: int128) {
expectEqual(Int($0[0]), offset)
let lastIndex = $0.indices.last!
expectEqual(Int($0[lastIndex]), offset+lastIndex)
}
}
UnsafeRawPointerTestSuite.test("alignedUp.for.overflow") {
let p = UnsafeRawPointer(bitPattern: 1-MemoryLayout<Int>.stride)!
if _isDebugAssertConfiguration() {
expectCrashLater()
}
let up = p.alignedUp(for: Int.self)
expectEqual(Int(bitPattern: up), 0)
}
UnsafeRawPointerTestSuite.test("alignedUp.toMultiple.overflow") {
let p = UnsafeRawPointer(bitPattern: -7)!
if _isDebugAssertConfiguration() {
expectCrashLater()
}
let up = p.alignedUp(toMultipleOf: 8)
expectEqual(Int(bitPattern: up), 0)
}
UnsafeRawPointerTestSuite.test("alignedUp.for.overflow") {
let p = UnsafeRawPointer(bitPattern: MemoryLayout<Int64>.stride-1)!
if _isDebugAssertConfiguration() {
expectCrashLater()
}
let up = p.alignedDown(for: Int64.self)
expectEqual(Int(bitPattern: up), 0)
}
UnsafeRawPointerTestSuite.test("alignedUp.toMultiple.overflow") {
let p = UnsafeRawPointer(bitPattern: 13)!
if _isDebugAssertConfiguration() {
expectCrashLater()
}
let up = p.alignedDown(toMultipleOf: 16)
expectEqual(Int(bitPattern: up), 0)
}
UnsafeRawPointerTestSuite.test("alignedUp.for.overflow.mutable") {
let p = UnsafeMutableRawPointer(bitPattern: 1-MemoryLayout<Int>.stride)!
if _isDebugAssertConfiguration() {
expectCrashLater()
}
let up = p.alignedUp(for: Int.self)
expectEqual(Int(bitPattern: up), 0)
}
UnsafeRawPointerTestSuite.test("alignedUp.toMultiple.overflow.mutable") {
let p = UnsafeMutableRawPointer(bitPattern: -7)!
if _isDebugAssertConfiguration() {
expectCrashLater()
}
let up = p.alignedUp(toMultipleOf: 8)
expectEqual(Int(bitPattern: up), 0)
}
UnsafeRawPointerTestSuite.test("alignedUp.for.overflow.mutable") {
let p = UnsafeMutableRawPointer(bitPattern: MemoryLayout<Int64>.stride-1)!
if _isDebugAssertConfiguration() {
expectCrashLater()
}
let up = p.alignedDown(for: Int64.self)
expectEqual(Int(bitPattern: up), 0)
}
UnsafeRawPointerTestSuite.test("alignedUp.toMultiple.overflow.mutable") {
let p = UnsafeMutableRawPointer(bitPattern: 13)!
if _isDebugAssertConfiguration() {
expectCrashLater()
}
let up = p.alignedDown(toMultipleOf: 16)
expectEqual(Int(bitPattern: up), 0)
}
runAllTests()
|
