| // RUN: %target-swift-frontend -primary-file %s -emit-ir > %t.ll |
| // RUN: FileCheck %s -check-prefix=GLOBAL < %t.ll |
| // RUN: FileCheck %s < %t.ll |
| // REQUIRES: CPU=x86_64 |
| |
| protocol P {} |
| protocol Q {} |
| |
| protocol Assocked { |
| typealias Assoc : P, Q |
| } |
| |
| struct Universal : P, Q {} |
| |
| // Witness table access functions for Universal : P and Universal : Q. |
| // CHECK-LABEL: define hidden i8** @_TWaV23associated_type_witness9UniversalS_1PS_() |
| // CHECK: ret i8** getelementptr inbounds ([0 x i8*], [0 x i8*]* @_TWPV23associated_type_witness9UniversalS_1PS_, i32 0, i32 0) |
| // CHECK-LABEL: define hidden i8** @_TWaV23associated_type_witness9UniversalS_1QS_() |
| // CHECK: ret i8** getelementptr inbounds ([0 x i8*], [0 x i8*]* @_TWPV23associated_type_witness9UniversalS_1QS_, i32 0, i32 0) |
| |
| // Witness table for WithUniversal : Assocked. |
| // GLOBAL-LABEL: @_TWPV23associated_type_witness13WithUniversalS_8AssockedS_ = hidden constant [3 x i8*] [ |
| // GLOBAL-SAME: i8* bitcast (%swift.type* ()* @_TMaV23associated_type_witness9Universal to i8*) |
| // GLOBAL-SAME: i8* bitcast (i8** ()* @_TWaV23associated_type_witness9UniversalS_1PS_ to i8*) |
| // GLOBAL-SAME: i8* bitcast (i8** ()* @_TWaV23associated_type_witness9UniversalS_1QS_ to i8*) |
| // GLOBAL-SAME: ] |
| struct WithUniversal : Assocked { |
| typealias Assoc = Universal |
| } |
| |
| // Witness table for GenericWithUniversal : Assocked. |
| // GLOBAL-LABEL: @_TWPurGV23associated_type_witness20GenericWithUniversalx_S_8AssockedS_ = hidden constant [3 x i8*] [ |
| // GLOBAL-SAME: i8* bitcast (%swift.type* ()* @_TMaV23associated_type_witness9Universal to i8*) |
| // GLOBAL-SAME: i8* bitcast (i8** ()* @_TWaV23associated_type_witness9UniversalS_1PS_ to i8*) |
| // GLOBAL-SAME: i8* bitcast (i8** ()* @_TWaV23associated_type_witness9UniversalS_1QS_ to i8*) |
| // GLOBAL-SAME: ] |
| struct GenericWithUniversal<T> : Assocked { |
| typealias Assoc = Universal |
| } |
| |
| // Witness table for Fulfilled : Assocked. |
| // GLOBAL-LABEL: @_TWPuRx23associated_type_witness1PxS_1QrGVS_9Fulfilledx_S_8AssockedS_ = hidden constant [3 x i8*] [ |
| // GLOBAL-SAME: i8* bitcast (%swift.type* (%swift.type*, i8**)* @_TWtuRx23associated_type_witness1PxS_1QrGVS_9Fulfilledx_S_8AssockedS_5Assoc to i8*) |
| // GLOBAL-SAME: i8* bitcast (i8** (%swift.type*, %swift.type*, i8**)* @_TWTuRx23associated_type_witness1PxS_1QrGVS_9Fulfilledx_S_8AssockedS_5AssocPS_1P_ to i8*) |
| // GLOBAL-SAME: i8* bitcast (i8** (%swift.type*, %swift.type*, i8**)* @_TWTuRx23associated_type_witness1PxS_1QrGVS_9Fulfilledx_S_8AssockedS_5AssocPS_1Q_ to i8*) |
| // GLOBAL-SAME: ] |
| struct Fulfilled<T : protocol<P, Q> > : Assocked { |
| typealias Assoc = T |
| } |
| |
| // Associated type metadata access function for Fulfilled.Assoc. |
| // CHECK-LABEL: define internal %swift.type* @_TWtuRx23associated_type_witness1PxS_1QrGVS_9Fulfilledx_S_8AssockedS_5Assoc(%swift.type* %Self, i8** %wtable) |
| // CHECK: [[T0:%.*]] = bitcast %swift.type* %Self to %swift.type** |
| // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds %swift.type*, %swift.type** [[T0]], i64 3 |
| // CHECK-NEXT: [[T2:%.*]] = load %swift.type*, %swift.type** [[T1]], align 8, !invariant.load |
| // CHECK-NEXT: ret %swift.type* [[T2]] |
| |
| // Associated type witness table access function for Fulfilled.Assoc : P. |
| // CHECK-LABEL: define internal i8** @_TWTuRx23associated_type_witness1PxS_1QrGVS_9Fulfilledx_S_8AssockedS_5AssocPS_1P_(%swift.type* %Self.Assoc, %swift.type* %Self, i8** %wtable) |
| // CHECK: [[T0:%.*]] = bitcast %swift.type* %Self to i8*** |
| // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8**, i8*** [[T0]], i64 4 |
| // CHECK-NEXT: [[T2:%.*]] = load i8**, i8*** [[T1]], align 8, !invariant.load |
| // CHECK-NEXT: ret i8** [[T2]] |
| |
| // Associated type witness table access function for Fulfilled.Assoc : Q. |
| // CHECK-LABEL: define internal i8** @_TWTuRx23associated_type_witness1PxS_1QrGVS_9Fulfilledx_S_8AssockedS_5AssocPS_1Q_(%swift.type* %Self.Assoc, %swift.type* %Self, i8** %wtable) |
| // CHECK: [[T0:%.*]] = bitcast %swift.type* %Self to i8*** |
| // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8**, i8*** [[T0]], i64 5 |
| // CHECK-NEXT: [[T2:%.*]] = load i8**, i8*** [[T1]], align 8, !invariant.load |
| // CHECK-NEXT: ret i8** [[T2]] |
| |
| struct Pair<T, U> : P, Q {} |
| |
| // Generic witness table pattern for Computed : Assocked. |
| // GLOBAL-LABEL: @_TWPu0_rGV23associated_type_witness8Computedxq__S_8AssockedS_ = hidden constant [3 x i8*] [ |
| // GLOBAL-SAME: i8* bitcast (%swift.type* (%swift.type*, i8**)* @_TWtu0_rGV23associated_type_witness8Computedxq__S_8AssockedS_5Assoc to i8*) |
| // GLOBAL-SAME: i8* bitcast (i8** (%swift.type*, %swift.type*, i8**)* @_TWTu0_rGV23associated_type_witness8Computedxq__S_8AssockedS_5AssocPS_1P_ to i8*) |
| // GLOBAL-SAME: i8* bitcast (i8** (%swift.type*, %swift.type*, i8**)* @_TWTu0_rGV23associated_type_witness8Computedxq__S_8AssockedS_5AssocPS_1Q_ to i8*) |
| // GLOBAL-SAME: ] |
| // Generic witness table cache for Computed : Assocked. |
| // GLOBAL-LABEL: @_TWGu0_rGV23associated_type_witness8Computedxq__S_8AssockedS_ = internal global %swift.generic_witness_table_cache { |
| // GLOBAL-SAME: i16 4, |
| // GLOBAL-SAME: i16 3, |
| // GLOBAL-SAME: i32 trunc (i64 sub (i64 ptrtoint ([3 x i8*]* @_TWPu0_rGV23associated_type_witness8Computedxq__S_8AssockedS_ to i64), i64 ptrtoint (i32* getelementptr inbounds (%swift.generic_witness_table_cache, %swift.generic_witness_table_cache* @_TWGu0_rGV23associated_type_witness8Computedxq__S_8AssockedS_, i32 0, i32 2) to i64)) to i32) |
| // GLOBAL-SAME: i32 0, |
| // GLOBAL-SAME: [16 x i8*] zeroinitializer |
| // GLOBAL-SAME: } |
| struct Computed<T, U> : Assocked { |
| typealias Assoc = Pair<T, U> |
| } |
| |
| // Associated type metadata access function for Computed.Assoc. |
| // CHECK-LABEL: define internal %swift.type* @_TWtu0_rGV23associated_type_witness8Computedxq__S_8AssockedS_5Assoc(%swift.type* %Self, i8** %wtable) |
| // CHECK: entry: |
| // CHECK: [[T0:%.*]] = getelementptr inbounds i8*, i8** %wtable, i32 3 |
| // CHECK-NEXT: [[CACHE:%.*]] = bitcast i8** [[T0]] to %swift.type** |
| // CHECK-NEXT: [[CACHE_RESULT:%.*]] = load %swift.type*, %swift.type** [[CACHE]], align 8 |
| // CHECK-NEXT: [[T1:%.*]] = icmp eq %swift.type* [[CACHE_RESULT]], null |
| // CHECK-NEXT: br i1 [[T1]], label %fetch, label %cont |
| // CHECK: cont: |
| // CHECK-NEXT: [[T0:%.*]] = phi %swift.type* [ [[CACHE_RESULT]], %entry ], [ [[FETCH_RESULT:%.*]], %fetch ] |
| // CHECK-NEXT: ret %swift.type* [[T0]] |
| // CHECK: fetch: |
| // CHECK-NEXT: [[T0:%.*]] = bitcast %swift.type* %Self to %swift.type** |
| // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds %swift.type*, %swift.type** [[T0]], i64 3 |
| // CHECK-NEXT: [[T:%.*]] = load %swift.type*, %swift.type** [[T1]], align 8, !invariant.load |
| // CHECK: [[T0:%.*]] = bitcast %swift.type* %Self to %swift.type** |
| // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds %swift.type*, %swift.type** [[T0]], i64 4 |
| // CHECK-NEXT: [[U:%.*]] = load %swift.type*, %swift.type** [[T1]], align 8, !invariant.load |
| // CHECK: [[T0:%.*]] = bitcast %swift.type* [[T]] to i8* |
| // CHECK-NEXT: [[T1:%.*]] = bitcast %swift.type* [[U]] to i8* |
| // CHECK-NEXT: [[FETCH_RESULT]] = call %swift.type* @swift_getGenericMetadata2({{.*}}, i8* [[T0]], i8* [[T1]]) |
| // CHECK-NEXT: store atomic %swift.type* [[FETCH_RESULT]], %swift.type** [[CACHE]] release, align 8 |
| // CHECK-NEXT: br label %cont |
| |
| struct PBox<T: P> {} |
| protocol HasSimpleAssoc { |
| typealias Assoc |
| } |
| protocol DerivedFromSimpleAssoc : HasSimpleAssoc {} |
| |
| |
| // Generic witness table pattern for GenericComputed : DerivedFromSimpleAssoc. |
| // GLOBAL-LABEL: @_TWPuRx23associated_type_witness1PrGVS_15GenericComputedx_S_22DerivedFromSimpleAssocS_ = hidden constant [1 x i8*] zeroinitializer |
| // Generic witness table cache for GenericComputed : DerivedFromSimpleAssoc. |
| // GLOBAL-LABEL: @_TWGuRx23associated_type_witness1PrGVS_15GenericComputedx_S_22DerivedFromSimpleAssocS_ = internal global %swift.generic_witness_table_cache { |
| // GLOBAL-SAME: i16 1, |
| // GLOBAL-SAME: i16 1, |
| // GLOBAL-SAME: i32 trunc (i64 sub (i64 ptrtoint ([1 x i8*]* @_TWPuRx23associated_type_witness1PrGVS_15GenericComputedx_S_22DerivedFromSimpleAssocS_ to i64), i64 ptrtoint (i32* getelementptr inbounds (%swift.generic_witness_table_cache, %swift.generic_witness_table_cache* @_TWGuRx23associated_type_witness1PrGVS_15GenericComputedx_S_22DerivedFromSimpleAssocS_, i32 0, i32 2) to i64)) to i32) |
| // GLOBAL-SAME: i32 trunc (i64 sub (i64 ptrtoint (void (i8**, %swift.type*, i8**)* @_TWIuRx23associated_type_witness1PrGVS_15GenericComputedx_S_22DerivedFromSimpleAssocS_ to i64), i64 ptrtoint (i32* getelementptr inbounds (%swift.generic_witness_table_cache, %swift.generic_witness_table_cache* @_TWGuRx23associated_type_witness1PrGVS_15GenericComputedx_S_22DerivedFromSimpleAssocS_, i32 0, i32 3) to i64)) to i32), |
| // GLOBAL-SAME: [16 x i8*] zeroinitializer |
| // GLOBAL-SAME: } |
| struct GenericComputed<T: P> : DerivedFromSimpleAssoc { |
| typealias Assoc = PBox<T> |
| } |
| |
| // Instantiation function for GenericComputed : DerivedFromSimpleAssoc. |
| // CHECK-LABEL: define internal void @_TWIuRx23associated_type_witness1PrGVS_15GenericComputedx_S_22DerivedFromSimpleAssocS_(i8**, %swift.type*, i8**) |
| // CHECK: [[T0:%.*]] = call i8** @_TWauRx23associated_type_witness1PrGVS_15GenericComputedx_S_14HasSimpleAssocS_(%swift.type* %1) |
| // CHECK-NEXT: [[T1:%.*]] = bitcast i8** [[T0]] to i8* |
| // CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds i8*, i8** %0, i32 0 |
| // CHECK-NEXT: store i8* [[T1]], i8** [[T2]], align 8 |
| // CHECK-NEXT: ret void |
| |
| protocol HasAssocked { |
| typealias Contents : Assocked |
| } |
| struct FulfilledFromAssociatedType<T : HasAssocked> : HasSimpleAssoc { |
| typealias Assoc = PBox<T.Contents.Assoc> |
| } |
| |
| struct UsesVoid : HasSimpleAssoc { |
| typealias Assoc = () |
| } |
