// RUN: %target-swift-frontend %s -emit-ir | %FileCheck %s

sil_stage canonical

import Swift

class Foo {}
sil_vtable Foo {}

sil @$s10objc_block3FooCfD : $(Foo) -> ()

sil @call_block : $@convention(thin) (@convention(block) (Foo) -> Foo, Foo) -> Foo {
entry(%b : $@convention(block) (Foo) -> Foo, %x : $Foo):
  %y = apply %b(%x) : $@convention(block) (Foo) -> Foo
  return %y : $Foo
}
// CHECK-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc ptr @call_block(ptr %0, ptr %1) {{.*}} {
// CHECK:       entry:
// CHECK:         [[T0:%.*]] = getelementptr inbounds %objc_block, ptr %0, i32 0, i32 3
// CHECK:         [[T1:%.*]] = load ptr, ptr [[T0]]
// CHECK:         [[T4:%.*]] = call ptr [[T1]](ptr %0, ptr %1)
// CHECK:         ret ptr [[T4]]
// CHECK:       }