// RUN: rm -rf %t && mkdir %t
// RUN: %build-irgen-test-overlays
// RUN: %target-swift-frontend(mock-sdk: -sdk %S/Inputs -I %t) %s -emit-ir | FileCheck %s

// REQUIRES: objc_interop

import Swift
import Foundation

// CHECK-LABEL: define{{( protected)?}} %swift.error* @errortype_from_nserror(%CSo7NSError*)
// CHECK:         %1 = bitcast %CSo7NSError* %0 to %swift.error*
sil @errortype_from_nserror : $@convention(thin) (@owned NSError) -> @owned ErrorProtocol {
entry(%0 : $NSError):
  %1 = init_existential_ref %0 : $NSError : $NSError, $ErrorProtocol
  return %1 : $ErrorProtocol
}