Optimizer: add var Context.currentModuleContext

Author: eeckstein

SwiftCompilerSources/Sources/Optimizer/PassManager/Context.swift

@@ -44,6 +44,10 @@ extension Context {
     }
   }
 
+  var currentModuleContext: ModuleDecl {
+    _bridged.getCurrentModuleContext().getAs(ModuleDecl.self)
+  }
+
   var moduleIsSerialized: Bool { _bridged.moduleIsSerialized() }
 
   /// Enable diagnostics requiring WMO (for @noLocks, @noAllocation

include/swift/SILOptimizer/OptimizerBridging.h

@@ -382,6 +382,7 @@ struct BridgedPassContext {
   BRIDGED_INLINE bool enableMoveInoutStackProtection() const;
   BRIDGED_INLINE AssertConfiguration getAssertConfiguration() const;
   bool enableSimplificationFor(BridgedInstruction inst) const;
+  SWIFT_IMPORT_UNSAFE BRIDGED_INLINE BridgedDeclObj getCurrentModuleContext() const;
   BRIDGED_INLINE bool enableWMORequiredDiagnostics() const;
 
   // Temporary for AddressableParameters Bootstrapping.

include/swift/SILOptimizer/OptimizerBridgingImpl.h

@@ -578,6 +578,10 @@ bool BridgedPassContext::shouldExpand(BridgedType ty) const {
   return swift::shouldExpand(mod, ty.unbridged());
 }
 
+BridgedDeclObj BridgedPassContext::getCurrentModuleContext() const {
+  return {invocation->getPassManager()->getModule()->getSwiftModule()};
+}
+
 bool BridgedPassContext::enableWMORequiredDiagnostics() const {
   swift::SILModule *mod = invocation->getPassManager()->getModule();
   return mod->getOptions().EnableWMORequiredDiagnostics;