mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
59 lines
2.6 KiB
Swift
59 lines
2.6 KiB
Swift
// RUN: %target-swift-frontend -enable-sil-ownership -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 @_T09unmanaged3set6holderyAA6HolderVz_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 @_T09unmanaged3get6holderAA1CCAA6HolderVz_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 @_T09unmanaged7project2fnAA1CCAA6HolderVyc_tF : $@convention(thin) (@owned @noescape @callee_guaranteed () -> Holder) -> @owned C
|
|
// CHECK: bb0([[FN:%.*]] : $@noescape @callee_guaranteed () -> 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: strong_release [[FN]]
|
|
// CHECK-NEXT: return [[T2]]
|