Build GPU binaries with Metal

let descriptor = MTLBinaryArchiveDescriptor()
descriptor.url = nil
let binaryArchive = try device.makeBinaryArchive(descriptor:descriptor)

// Render pipelines
try binaryArchive.addRenderPipelineFunctions(with: renderPipelineDescriptor)

// Compute pipelines
try binaryArchive.addComputePipelineFunctions(with: computePipelineDescriptor)

// Tile render pipelines
try binaryArchive.addTileRenderPipelineFunctions(with: tileRenderPipelineDescriptor)

// Reusing compiled functions to build a pipeline state object from a file

let renderPipelineDescriptor = MTLRenderPipelineDescriptor()
// ...
renderPipelineDescriptor.binaryArchives = [ binaryArchive ]

let renderPipeline = try device.makeRenderPipelineState(descriptor:  
                                                          renderPipelineDescriptor)

let documentsURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
let archiveURL = documentsURL.appendingPathComponent("binaryArchive.metallib")

try binaryArchive.serialize(to: NSURL.fileURL(withPath: archiveURL))

let documentsURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
let serializeURL = documentsURL.appendingPathComponent("binaryArchive.metallib")

let descriptor = MTLBinaryArchiveDescriptor()
descriptor.url = NSURL.fileURL(withPath: serializeURL)
let binaryArchive = try device.makeBinaryArchive(descriptor: descriptor)

let options = MTLCompileOptions();
options.libraryType = .dynamic;
options.installName = "@executable_path/myDynamicLibrary.metallib"
let utilityLib = try device.makeLibrary(source: dylibSrc, options: options)
let utilityDylib = try device.makeDynamicLibrary(library: utilityLib)

let options = MTLCompileOptions()
options.libraries = [ utilityDylib ]
let library = try device.makeLibrary(source: kernelStr, options: options)