// RUN: %target-sil-opt %s
// REQUIRES: asserts

sil_stage canonical

protocol Proto {
}

sil  @test : $@convention(thin) (@in Proto) -> @out Any {
bb0(%0 : $*Any, %1 : $*Proto):
  // init_existential_addr should be able to put an existential container inside an existential container
  %2 = init_existential_addr %0 : $*Any, $Proto
  copy_addr [take] %1 to [initialization] %2 : $*Proto
  %4 = tuple ()
  return %4 : $()
}