| // RUN: %target-swift-frontend -emit-sil %s | %FileCheck %s |
| |
| class C {} |
| |
| struct Holder { |
| unowned(unsafe) var value: C |
| } |
| _ = Holder(value: C()) |
| // CHECK-LABEL:sil hidden @_T09unmanaged6HolderV{{[_0-9a-zA-Z]*}}fC : $@convention(method) (@owned C, @thin Holder.Type) -> Holder |
| // CHECK: bb0([[T0:%.*]] : $C, |
| // CHECK-NEXT: [[T1:%.*]] = ref_to_unmanaged [[T0]] : $C to $@sil_unmanaged C |
| // CHECK-NEXT: strong_release [[T0]] : $C |
| // CHECK-NEXT: [[T2:%.*]] = struct $Holder ([[T1]] : $@sil_unmanaged C) |
| // CHECK-NEXT: return [[T2]] : $Holder |
| |
| func set(holder holder: inout Holder) { |
| holder.value = C() |
| } |
| // CHECK-LABEL:sil hidden @_T09unmanaged3setyAA6HolderVz6holder_tF : $@convention(thin) (@inout Holder) -> () |
| // CHECK: bb0([[ADDR:%.*]] : $*Holder): |
| // CHECK: [[T0:%.*]] = function_ref @_T09unmanaged1CC{{[_0-9a-zA-Z]*}}fC |
| // CHECK: [[C:%.*]] = apply [[T0]]( |
| // CHECK-NEXT: [[WRITE:%.*]] = begin_access [modify] [static] [[ADDR]] : $*Holder |
| // CHECK-NEXT: [[T0:%.*]] = struct_element_addr [[WRITE]] : $*Holder, #Holder.value |
| // CHECK-NEXT: [[T1:%.*]] = ref_to_unmanaged [[C]] |
| // CHECK-NEXT: store [[T1]] to [[T0]] |
| // CHECK-NEXT: strong_release [[C]] |
| // CHECK-NEXT: end_access [[WRITE]] : $*Holder |
| // CHECK-NEXT: tuple () |
| // CHECK-NEXT: return |
| |
| func get(holder holder: inout Holder) -> C { |
| return holder.value |
| } |
| // CHECK-LABEL:sil hidden @_T09unmanaged3getAA1CCAA6HolderVz6holder_tF : $@convention(thin) (@inout Holder) -> @owned C |
| // CHECK: bb0([[ADDR:%.*]] : $*Holder): |
| // CHECK-NEXT: debug_value_addr %0 : $*Holder, var, name "holder", argno 1 |
| // CHECK-NEXT: [[READ:%.*]] = begin_access [read] [static] [[ADDR]] : $*Holder |
| // CHECK-NEXT: [[T0:%.*]] = struct_element_addr [[READ]] : $*Holder, #Holder.value |
| // CHECK-NEXT: [[T1:%.*]] = load [[T0]] : $*@sil_unmanaged C |
| // CHECK-NEXT: [[T2:%.*]] = unmanaged_to_ref [[T1]] |
| // CHECK-NEXT: strong_retain [[T2]] |
| // CHECK-NEXT: end_access [[READ]] : $*Holder |
| // CHECK-NEXT: return [[T2]] |
| |
| func project(fn fn: () -> Holder) -> C { |
| return fn().value |
| } |
| // CHECK-LABEL:sil hidden @_T09unmanaged7projectAA1CCAA6HolderVyc2fn_tF : $@convention(thin) (@owned @callee_owned () -> Holder) -> @owned C |
| // CHECK: bb0([[FN:%.*]] : $@callee_owned () -> Holder): |
| // CHECK: strong_retain [[FN]] |
| // CHECK-NEXT: [[T0:%.*]] = apply [[FN]]() |
| // CHECK-NEXT: [[T1:%.*]] = struct_extract [[T0]] : $Holder, #Holder.value |
| // CHECK-NEXT: [[T2:%.*]] = unmanaged_to_ref [[T1]] |
| // CHECK-NEXT: strong_retain [[T2]] |
| // CHECK-NEXT: strong_release [[FN]] |
| // CHECK-NEXT: return [[T2]] |