File: simplify_destroy_value.sil

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// RUN: %target-sil-opt -enable-sil-verify-all %s -onone-simplification -simplify-instruction=destroy_value | %FileCheck %s

// REQUIRES: swift_in_compiler

sil_stage canonical

import Builtin
import Swift
import SwiftShims

sil @cl : $@convention(thin) () -> Int

// CHECK-LABEL: sil [ossa] @remove_copy :
// CHECK-NOT:     destroy_value
// CHECK:       } // end sil function 'remove_copy'
sil [ossa] @remove_copy : $@convention(thin) () -> () {
bb0:
  %0 = function_ref @cl : $@convention(thin) () -> Int
  %1 = thin_to_thick_function %0 : $@convention(thin) () -> Int to $@callee_guaranteed () -> Int
  destroy_value %1 : $@callee_guaranteed () -> Int
  %4 = tuple ()
  return %4 : $()
}