File: verifier-value-metatype-lowering.sil

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// RUN: %target-sil-opt -module-name Swift %s
// REQUIRES: asserts
//
// Make sure that we properly verify the lowering of optional value
// metatypes. This shouldn't crash.
//
// rdar://28536812

enum Optional<T> {
case none
case some(T)
}

sil @foo : $@convention(thin) () -> () {
  %0 = enum $Optional<@thick Any.Type>, #Optional.none!enumelt
  %1 = alloc_stack $Optional<@thick Any.Type>
  store %0 to %1 : $*Optional<@thick Any.Type>
  %2 = value_metatype $@thick Optional<Any.Type>.Type, %1 : $*Optional<@thick Any.Type>
  dealloc_stack %1 : $*Optional<@thick Any.Type>
  %3 = tuple()
  return %3 : $()
}