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