File: simplify_try_apply.sil

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

// REQUIRES: swift_in_compiler

sil_stage canonical

import Builtin
import Swift
import SwiftShims

class Bar {
  init()
  func foo() throws -> Int 
}

// CHECK-LABEL: sil @devirt_class_method :
// CHECK:         [[F:%.*]] = function_ref @bar_foo
// CHECK:         try_apply [[F]]
// CHECK:       } // end sil function 'devirt_class_method'
sil @devirt_class_method : $@convention(thin) () -> (Int, @error any Error) {
bb0:
  %0 = alloc_ref $Bar
  %1 = class_method %0 : $Bar, #Bar.foo : (Bar) -> () throws -> Int, $@convention(method) (@guaranteed Bar) -> (Int, @error any Error)
  try_apply %1(%0) : $@convention(method) (@guaranteed Bar) -> (Int, @error any Error), normal bb1, error bb2

bb1(%3 : $Int):
  strong_release %0 : $Bar
  return %3 : $Int

bb2(%6 : $Error):
  strong_release %0 : $Bar
  throw %6 : $Error
}

sil @bar_foo : $@convention(method) (@guaranteed Bar) -> (Int, @error any Error)

sil_vtable Bar {
  #Bar.foo: @bar_foo
}