File: opaque_use_verifier.sil

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// RUN: %target-sil-opt -enable-sil-opaque-values -enable-sil-verify-all=0 -module-name Swift -o /dev/null %s 2>&1
// REQUIRES: asserts

// This file is meant to contain tests that previously the verifier treated
// incorrectly. This is important to ensure that the verifier does not
// regress. It should only deal with use matching of opaque types.

sil_stage raw

import Builtin

sil [ossa] @opaque_identity : $@convention(thin) <T> (@in T) -> @out T {
bb0(%0 : @owned $T):
  return %0 : $T
}

sil [ossa] @opaque_copy : $@convention(thin) <T> (@in_guaranteed T) -> @out T {
bb0(%0 : @guaranteed $T):
  %1 = copy_value %0 : $T
  return %1 : $T
}

sil [ossa] @opaque_arg_copy : $@convention(thin) <T> (@in T) -> @out T {
bb0(%0 : @owned $T):
  %1 = begin_borrow %0 : $T
  %2 = copy_value %1 : $T
  %9 = function_ref @opaque_identity : $@convention(thin) <T> (@in T) -> @out T
  %11 = apply %9<T>(%2) : $@convention(thin) <τ_0_0> (@in τ_0_0) -> @out τ_0_0
  end_borrow %1 : $T
  destroy_value %0 : $T
  return %11 : $T
}

sil [ossa] @opaque_arg_borrow : $@convention(thin) <T> (@in T) -> @out T {
bb0(%0 : @owned $T):
  %1 = begin_borrow %0 : $T
  %9 = function_ref @opaque_copy : $@convention(thin) <T> (@in_guaranteed T) -> @out T
  %11 = apply %9<T>(%1) : $@convention(thin) <τ_0_0> (@in_guaranteed τ_0_0) -> @out τ_0_0
  end_borrow %1 : $T
  destroy_value %0 : $T
  return %11 : $T
}

sil [ossa] @opaque_arg_guaranteed : $@convention(thin) <T> (@in_guaranteed T) -> @out T {
bb0(%0 : @guaranteed $T):
  %1 = copy_value %0 : $T
  %2 = begin_borrow %1 : $T
  %3 = function_ref @opaque_copy : $@convention(thin) <T> (@in_guaranteed T) -> @out T
  %4 = apply %3<T>(%2) : $@convention(thin) <T> (@in_guaranteed T) -> @out T
  end_borrow %2 : $T
  destroy_value %1 : $T
  return %4 : $T
}

typealias AnyObject = Builtin.AnyObject

sil [ossa] @takeType : $@convention(thin) (@thick AnyObject.Type) -> () {
bb0(%0 : $@thick AnyObject.Type):
  %18 = tuple ()
  return %18 : $()
}

sil [ossa] @passTrivialAsOpaqueValue : $@convention(thin) (Builtin.Int64) -> () {
bb0(%0 : $Builtin.Int64):
  %1 = function_ref @opaque_copy : $@convention(thin) <T> (@in_guaranteed T) -> @out T
  %2 = apply %1<Builtin.Int64>(%0) : $@convention(thin) <T> (@in_guaranteed T) -> @out T
  %3 = function_ref @opaque_arg_copy : $@convention(thin) <T> (@in T) -> @out T
  apply %3<Builtin.Int64>(%0) : $@convention(thin) <T> (@in T) -> @out T
  %9999 = tuple()
  return %9999 : $()
}