Swift Optimizer: add bridging for command line options

Author: eeckstein

SwiftCompilerSources/Sources/Optimizer/PassManager/CMakeLists.txt

@@ -8,6 +8,7 @@
 
 swift_compiler_sources(Optimizer
   ModulePassContext.swift
+  Options.swift
   Passes.swift
   PassContext.swift
   PassRegistration.swift)

SwiftCompilerSources/Sources/Optimizer/PassManager/ModulePassContext.swift

@@ -91,6 +91,8 @@ struct ModulePassContext {
     DefaultWitnessTableList(first: PassContext_firstDefaultWitnessTableInModule(_bridged).table)
   }
 
+  var options: Options { Options(_bridged: _bridged) }
+
   /// Run a closure with a `PassContext` for a function, which allows to modify that function.
   ///
   /// Only a single `transform` can be alive at the same time, i.e. it's not allowed to nest

SwiftCompilerSources/Sources/Optimizer/PassManager/Options.swift

@@ -0,0 +1,17 @@
+//===--- Options.swift ----------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2014 - 2022 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
+//
+//===----------------------------------------------------------------------===//
+
+import OptimizerBridging
+
+struct Options {
+  let _bridged: BridgedPassContext
+}

SwiftCompilerSources/Sources/Optimizer/PassManager/PassContext.swift

@@ -22,6 +22,8 @@ struct PassContext {
 
   let _bridged: BridgedPassContext
 
+  var options: Options { Options(_bridged: _bridged) }
+
   func continueWithNextSubpassRun(for inst: Instruction? = nil) -> Bool {
     let bridgedInst = OptionalBridgedInstruction(obj: inst?.bridged.obj)
     return PassContext_continueWithNextSubpassRun(_bridged, bridgedInst) != 0