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52 lines
2.1 KiB
Swift
52 lines
2.1 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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// CHECK-LABEL:sil hidden @_TFV9unmanaged6HolderCfMS0_FT5valueCS_1C_S0_ : $@convention(thin) (@owned C, @thin Holder.Type) -> Holder
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// CHECK-NEXT: 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(inout #holder: Holder) {
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holder.value = C()
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}
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// CHECK-LABEL:sil hidden @_TF9unmanaged3setFT6holderRVS_6Holder_T_ : $@convention(thin) (@inout Holder) -> ()
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// CHECK-NEXT: bb0([[ADDR:%.*]] : $*Holder):
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// CHECK: [[T0:%.*]] = function_ref @_TFC9unmanaged1CCfMS0_FT_S0_
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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(inout #holder: Holder) -> C {
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return holder.value
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}
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// CHECK-LABEL:sil hidden @_TF9unmanaged3getFT6holderRVS_6Holder_CS_1C : $@convention(thin) (@inout Holder) -> @owned C
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// CHECK-NEXT: bb0([[ADDR:%.*]] : $*Holder):
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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: () -> Holder) -> C {
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return fn().value
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}
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// CHECK-LABEL:sil hidden @_TF9unmanaged7projectFT2fnFT_VS_6Holder_CS_1C : $@convention(thin) (@owned @callee_owned () -> Holder) -> @owned C
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// CHECK-NEXT: 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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