// First parse this and then emit a *.sib. Then read in the *.sib, then recreate
// RUN: %empty-directory(%t)
// FIXME: <rdar://problem/29281364> sil-opt -verify is broken
// RUN: %target-sil-opt %s -enable-sil-opaque-values -emit-sib -o %t/tmp.sib -module-name opaqueval
// RUN: %target-sil-opt %t/tmp.sib -enable-sil-opaque-values -verify -o %t/tmp.2.sib -module-name opaqueval
// RUN: %target-sil-opt %t/tmp.2.sib -enable-sil-opaque-values -emit-sorted-sil -verify -module-name opaqueval | %FileCheck %s

// REQUIRES: objc_interop

sil_stage raw

import Builtin
import Swift

struct UnownedBox<T : AnyObject> {
  unowned var value: T
}

// CHECK-LABEL: sil [ossa] @test_unowned_copy_value : {{.*}} {
// CHECK:       bb0([[VALUE:%[^,]+]] :
// CHECK:         unowned_copy_value [[VALUE]]
// CHECK-LABEL: } // end sil function 'test_unowned_copy_value'
sil [ossa] @test_unowned_copy_value : $@convention(thin) <T where T : AnyObject> (@owned T) -> @out UnownedBox<T> {
bb0(%owned_value : @owned $T):
  %unowned_value = unowned_copy_value %owned_value : $T
  destroy_value %owned_value : $T
  %instance = struct $UnownedBox<T> (%unowned_value : $@sil_unowned T)
  return %instance : $UnownedBox<T>
}