[Accelerate] [vForce] New vForce Overlay

stdlib/public/Darwin/Accelerate/Accelerate.swift

@@ -0,0 +1,17 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2014 - 2019 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
+//
+//===----------------------------------------------------------------------===//
+
+/// An enum that acts as a namespace for Swift overlays to vDSP based functions.
+public enum vDSP {}
+
+/// An enum that acts as a namespace for Swift overlays to vForce based functions.
+public enum vForce {}

stdlib/public/Darwin/Accelerate/CMakeLists.txt

@@ -2,6 +2,9 @@ cmake_minimum_required(VERSION 3.4.3)
 include("../../../../cmake/modules/StandaloneOverlay.cmake")
 
 add_swift_target_library(swiftAccelerate ${SWIFT_SDK_OVERLAY_LIBRARY_BUILD_TYPES} IS_SDK_OVERLAY
+  Accelerate.swift
+  ContiguousCollection.swift
+  vForce_Operations.swift
 
   "${SWIFT_SOURCE_DIR}/stdlib/linker-support/magic-symbols-for-install-name.c"
 
@@ -17,6 +20,8 @@ add_swift_target_library(swiftAccelerate ${SWIFT_SDK_OVERLAY_LIBRARY_BUILD_TYPES
   SWIFT_MODULE_DEPENDS_TVOS Darwin CoreFoundation CoreGraphics Dispatch Foundation Metal ObjectiveC os # auto-updated
   SWIFT_MODULE_DEPENDS_WATCHOS Darwin CoreFoundation CoreGraphics Dispatch Foundation ObjectiveC os # auto-updated
 
+  FRAMEWORK_DEPENDS Accelerate
+
   DEPLOYMENT_VERSION_OSX ${SWIFTLIB_DEPLOYMENT_VERSION_SIMD_OSX}
   DEPLOYMENT_VERSION_IOS ${SWIFTLIB_DEPLOYMENT_VERSION_SIMD_IOS}
   DEPLOYMENT_VERSION_TVOS ${SWIFTLIB_DEPLOYMENT_VERSION_SIMD_TVOS}

stdlib/public/Darwin/Accelerate/ContiguousCollection.swift

@@ -0,0 +1,72 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2014 - 2019 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
+//
+//===----------------------------------------------------------------------===//
+
+/// A collection that supports access to its underlying contiguous storage.
+@available(iOS 9999, OSX 9999, tvOS 9999, watchOS 9999, *)
+public protocol _ContiguousCollection: Collection
+where SubSequence: _ContiguousCollection {
+    /// Calls a closure with a pointer to the array's contiguous storage.
+    func withUnsafeBufferPointer<R>(
+        _ body: (UnsafeBufferPointer<Element>) throws -> R
+        ) rethrows -> R
+}
+
+@available(iOS 9999, OSX 9999, tvOS 9999, watchOS 9999, *)
+public extension _ContiguousCollection {
+    func withUnsafeBufferPointer<R>(
+        _ body: (UnsafeBufferPointer<Element>) throws -> R
+        ) rethrows -> R {
+        return try withContiguousStorageIfAvailable(body)!
+    }
+}
+
+/// A collection that supports mutable access to its underlying contiguous
+/// storage.
+@available(iOS 9999, OSX 9999, tvOS 9999, watchOS 9999, *)
+public protocol _MutableContiguousCollection: _ContiguousCollection, MutableCollection
+where SubSequence: _MutableContiguousCollection {
+    /// Calls the given closure with a pointer to the array's mutable contiguous
+    /// storage.
+    mutating func withUnsafeMutableBufferPointer<R>(
+        _ body: (inout UnsafeMutableBufferPointer<Element>) throws -> R
+        ) rethrows -> R
+}
+
+@available(iOS 9999, OSX 9999, tvOS 9999, watchOS 9999, *)
+extension _MutableContiguousCollection {
+    public mutating func withUnsafeMutableBufferPointer<R>(
+        _ body: (inout UnsafeMutableBufferPointer<Element>) throws -> R
+        ) rethrows -> R {
+        return try withContiguousMutableStorageIfAvailable(body)!
+    }
+}
+
+@available(iOS 9999, OSX 9999, tvOS 9999, watchOS 9999, *)
+extension Array: _MutableContiguousCollection { }
+
+@available(iOS 9999, OSX 9999, tvOS 9999, watchOS 9999, *)
+extension ContiguousArray: _MutableContiguousCollection { }
+
+@available(iOS 9999, OSX 9999, tvOS 9999, watchOS 9999, *)
+extension ArraySlice: _MutableContiguousCollection { }
+
+@available(iOS 9999, OSX 9999, tvOS 9999, watchOS 9999, *)
+extension UnsafeBufferPointer: _ContiguousCollection { }
+
+@available(iOS 9999, OSX 9999, tvOS 9999, watchOS 9999, *)
+extension UnsafeMutableBufferPointer: _MutableContiguousCollection { }
+
+@available(iOS 9999, OSX 9999, tvOS 9999, watchOS 9999, *)
+extension Slice: _ContiguousCollection where Base: _ContiguousCollection { }
+
+@available(iOS 9999, OSX 9999, tvOS 9999, watchOS 9999, *)
+extension Slice: _MutableContiguousCollection where Base: _MutableContiguousCollection { }