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c5314bd3af
KeyPath's getter/setter/hash/equals functions have their own calling convention, which receives generic arguments and embedded indices from a given KeyPath argument buffer. The convention was previously implemented by: 1. Accepting an argument buffer as an UnsafeRawPointer and casting it to indices tuple pointer in SIL. 2. Bind generic arguments info from the given argument buffer while emitting prologue in IRGen by creating a new forwarding thunk. This 2-phase lowering approach was not ideal, as it blocked KeyPath projection optimization [^1], and also required having a target arch specific signature lowering logic in SIL-level [^2]. This patch centralizes the KeyPath accessor calling convention logic to IRGen, by introducing `@convention(keypath_accessor_XXX)` convention in SIL and lowering it in IRGen. This change unblocks the KeyPath projection optimization while capturing subscript indices, and also makes it easier to support WebAssembly target. [^1]: https://github.com/apple/swift/pull/28799 [^2]: https://forums.swift.org/t/wasm-support/16087/21
206 lines
17 KiB
Plaintext
206 lines
17 KiB
Plaintext
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// RUN: %target-sil-opt %s | %target-sil-opt | %FileCheck %s
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sil_stage canonical
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import Swift
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struct S: Hashable {
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var x: Int
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let y: String
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var z: C
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func hash(into hasher: inout Hasher)
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static func ==(x: S, y: S) -> Bool
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}
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class C: Hashable {
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final var x: Int
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final let y: String
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final var z: S
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init()
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var overridable: Int {
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get set
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}
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func hash(into hasher: inout Hasher)
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static func ==(x: C, y: C) -> Bool
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}
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protocol P {}
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protocol Q {}
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protocol R {}
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struct Gen<A: P, B: Q, C: R> {
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var x: A
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let y: B
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var z: C
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}
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public struct External<T> {
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var ro: T
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subscript<U: Hashable>(ro _: U) -> T { get }
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}
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struct T {
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var x: (Int, Int)
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var y: (a: Int, b: Int, c: Int)
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let z: (Int, Int)
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let w: (Int, C)
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}
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// CHECK-LABEL: sil shared @stored_properties
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sil shared @stored_properties : $@convention(thin) () -> () {
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entry:
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// CHECK: keypath $WritableKeyPath<S, Int>, (root $S; stored_property #S.x : $Int)
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%a = keypath $WritableKeyPath<S, Int>, (root $S; stored_property #S.x : $Int)
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// CHECK: keypath $ReferenceWritableKeyPath<C, Int>, (root $C; stored_property #C.x : $Int)
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%b = keypath $ReferenceWritableKeyPath<C, Int>, (root $C; stored_property #C.x : $Int)
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// CHECK: keypath $KeyPath<S, String>, (root $S; stored_property #S.y : $String)
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%c = keypath $KeyPath<S, String>, (root $S; stored_property #S.y : $String)
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// CHECK: keypath $ReferenceWritableKeyPath<S, Int>, (root $S; stored_property #S.z : $C; stored_property #C.x : $Int)
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%d = keypath $ReferenceWritableKeyPath<S, Int>, (root $S; stored_property #S.z : $C; stored_property #C.x : $Int)
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return undef : $()
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}
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// CHECK-LABEL: sil shared @stored_properties_generic
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sil shared @stored_properties_generic : $@convention(thin) <D: P, E: Q, F: R> () -> () {
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entry:
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// CHECK: keypath $WritableKeyPath<Gen<D, E, F>, D>, <τ_0_0, τ_0_1, τ_0_2 where {{.*}}> (root $Gen<τ_0_0, τ_0_1, τ_0_2>; stored_property #Gen.x : $τ_0_0) <D, E, F>
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%a = keypath $WritableKeyPath<Gen<D,E,F>, D>, <G: P, H: Q, I: R> (root $Gen<G, H, I>; stored_property #Gen.x : $G) <D, E, F>
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// CHECK: keypath $KeyPath<Gen<D, E, F>, E>, <τ_0_0, τ_0_1, τ_0_2 where {{.*}}> (root $Gen<τ_0_0, τ_0_1, τ_0_2>; stored_property #Gen.y : $τ_0_1) <D, E, F>
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%b = keypath $KeyPath<Gen<D,E,F>, E>, <G: P, H: Q, I: R> (root $Gen<G, H, I>; stored_property #Gen.y : $H) <D, E, F>
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return undef : $()
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}
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// CHECK-LABEL: sil shared @tuple_elements
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sil shared @tuple_elements : $@convention(thin) () -> () {
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entry:
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// CHECK: keypath $WritableKeyPath<T, Int>, (root $T; stored_property #T.x : $(Int, Int); tuple_element #0 : $Int)
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%a = keypath $WritableKeyPath<T, Int>, (root $T; stored_property #T.x : $(Int, Int); tuple_element #0 : $Int)
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// CHECK: keypath $WritableKeyPath<T, Int>, (root $T; stored_property #T.y : $(a: Int, b: Int, c: Int); tuple_element #2 : $Int)
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%b = keypath $WritableKeyPath<T, Int>, (root $T; stored_property #T.y : $(a: Int, b: Int, c: Int); tuple_element #2 : $Int)
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// CHECK: keypath $KeyPath<T, Int>, (root $T; stored_property #T.z : $(Int, Int); tuple_element #1 : $Int)
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%c = keypath $KeyPath<T, Int>, (root $T; stored_property #T.z : $(Int, Int); tuple_element #1 : $Int)
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// CHECK: keypath $ReferenceWritableKeyPath<T, C>, (root $T; stored_property #T.w : $(Int, C); tuple_element #1 : $C)
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%d = keypath $ReferenceWritableKeyPath<T, C>, (root $T; stored_property #T.w : $(Int, C); tuple_element #1 : $C)
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return undef : $()
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}
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sil @id_a : $@convention(thin) () -> ()
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sil @get_s_int : $@convention(keypath_accessor_getter) (@in_guaranteed S) -> @out Int
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sil @set_s_int : $@convention(keypath_accessor_setter) (@in_guaranteed Int, @in_guaranteed S) -> ()
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sil @get_c_int : $@convention(keypath_accessor_getter) (@in_guaranteed C) -> @out Int
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sil @set_c_int : $@convention(keypath_accessor_setter) (@in_guaranteed Int, @in_guaranteed C) -> ()
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sil @get_fns_fnc : $@convention(keypath_accessor_getter) (@in_guaranteed @callee_guaranteed @substituted <A, B> (@in_guaranteed A) -> @out B for <S, S>) -> @out @callee_guaranteed @substituted <A, B> (@in_guaranteed A) -> @out B for <C, C>
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sil @set_fns_fnc : $@convention(keypath_accessor_setter) (@in_guaranteed @callee_guaranteed @substituted <A, B> (@in_guaranteed A) -> @out B for <C, C>, @in_guaranteed @callee_guaranteed @substituted <A, B> (@in_guaranteed A) -> @out B for <S, S>) -> ()
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sil @get_s_int_subs : $@convention(keypath_accessor_getter) (@in_guaranteed S, @in_guaranteed (S, C)) -> @out Int
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sil @set_s_int_subs : $@convention(keypath_accessor_setter) (@in_guaranteed Int, @in_guaranteed S, @in_guaranteed (S, C)) -> ()
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sil @subs_eq : $@convention(keypath_accessor_equals) (@in_guaranteed (S, C), @in_guaranteed (S, C)) -> Bool
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sil @subs_hash : $@convention(keypath_accessor_hash) (@in_guaranteed (S, C)) -> Int
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sil @get_gen_int_subs : $@convention(keypath_accessor_getter) <A: Hashable, B: Hashable, C: Hashable> (@in_guaranteed A, @in_guaranteed (S, C)) -> @out C
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sil @set_gen_int_subs : $@convention(keypath_accessor_setter) <A: Hashable, B: Hashable, C: Hashable> (@in_guaranteed C, @in_guaranteed A, @in_guaranteed (S, C)) -> ()
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sil @gen_subs_eq : $@convention(keypath_accessor_equals) <A: Hashable, B: Hashable, C: Hashable> (@in_guaranteed (S, C), @in_guaranteed (S, C)) -> Bool
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sil @gen_subs_hash : $@convention(keypath_accessor_hash) <A: Hashable, B: Hashable, C: Hashable> (@in_guaranteed (S, C)) -> Int
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// CHECK-LABEL: sil shared @computed_properties
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sil shared @computed_properties : $@convention(thin) () -> () {
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entry:
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// CHECK: keypath $KeyPath<S, Int>, (root $S; gettable_property $Int, id @id_a : $@convention(thin) () -> (), getter @get_s_int : $@convention(keypath_accessor_getter) (@in_guaranteed S) -> @out Int)
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%a = keypath $KeyPath<S, Int>, (root $S; gettable_property $Int, id @id_a : $@convention(thin) () -> (), getter @get_s_int : $@convention(keypath_accessor_getter) (@in_guaranteed S) -> @out Int)
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// CHECK: keypath $WritableKeyPath<S, Int>, (root $S; settable_property $Int, id @id_a : $@convention(thin) () -> (), getter @get_s_int : $@convention(keypath_accessor_getter) (@in_guaranteed S) -> @out Int, setter @set_s_int : $@convention(keypath_accessor_setter) (@in_guaranteed Int, @in_guaranteed S) -> ())
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%b = keypath $WritableKeyPath<S, Int>, (root $S; settable_property $Int, id @id_a : $@convention(thin) () -> (), getter @get_s_int : $@convention(keypath_accessor_getter) (@in_guaranteed S) -> @out Int, setter @set_s_int : $@convention(keypath_accessor_setter) (@in_guaranteed Int, @in_guaranteed S) -> ())
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// CHECK: keypath $WritableKeyPath<(S) -> S, (C) -> C>, (root $(S) -> S; settable_property $(C) -> C, id @id_a : $@convention(thin) () -> (), getter @get_fns_fnc : $@convention(keypath_accessor_getter) (@in_guaranteed @callee_guaranteed @substituted <τ_0_0, τ_0_1> (@in_guaranteed τ_0_0) -> @out τ_0_1 for <S, S>) -> @out @callee_guaranteed @substituted <τ_0_0, τ_0_1> (@in_guaranteed τ_0_0) -> @out τ_0_1 for <C, C>, setter @set_fns_fnc : $@convention(keypath_accessor_setter) (@in_guaranteed @callee_guaranteed @substituted <τ_0_0, τ_0_1> (@in_guaranteed τ_0_0) -> @out τ_0_1 for <C, C>, @in_guaranteed @callee_guaranteed @substituted <τ_0_0, τ_0_1> (@in_guaranteed τ_0_0) -> @out τ_0_1 for <S, S>) -> ())
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%c = keypath $WritableKeyPath<(S) -> S, (C) -> C>, (
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root $(S) -> S;
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settable_property $(C) -> C,
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id @id_a : $@convention(thin) () -> (),
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getter @get_fns_fnc : $@convention(keypath_accessor_getter) (@in_guaranteed @callee_guaranteed @substituted <A, B> (@in_guaranteed A) -> @out B for <S, S>) -> @out @callee_guaranteed @substituted <A, B> (@in_guaranteed A) -> @out B for <C, C>,
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setter @set_fns_fnc : $@convention(keypath_accessor_setter) (@in_guaranteed @callee_guaranteed @substituted <A, B> (@in_guaranteed A) -> @out B for <C, C>, @in_guaranteed @callee_guaranteed @substituted <A, B> (@in_guaranteed A) -> @out B for <S, S>) -> ())
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// CHECK: keypath $WritableKeyPath<C, Int>, (root $C; settable_property $Int, id #C.overridable!getter : (C) -> () -> Int, getter @get_c_int : $@convention(keypath_accessor_getter) (@in_guaranteed C) -> @out Int, setter @set_c_int : $@convention(keypath_accessor_setter) (@in_guaranteed Int, @in_guaranteed C) -> ())
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%d = keypath $WritableKeyPath<C, Int>, (root $C; settable_property $Int, id #C.overridable!getter : (C) -> () -> Int, getter @get_c_int : $@convention(keypath_accessor_getter) (@in_guaranteed C) -> @out Int, setter @set_c_int : $@convention(keypath_accessor_setter) (@in_guaranteed Int, @in_guaranteed C) -> ())
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return undef : $()
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}
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sil @get_gen_a : $@convention(keypath_accessor_getter) <X1: P, Y1: Q, Z1: R> (@in_guaranteed Gen<X1, Y1, Z1>) -> @out X1
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sil @set_gen_a : $@convention(keypath_accessor_setter) <X2: P, Y2: Q, Z2: R> (@in_guaranteed X2, @in_guaranteed Gen<X2, Y2, Z2>) -> ()
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// CHECK-LABEL: sil shared @computed_properties_generic
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sil shared @computed_properties_generic : $@convention(thin) <D: P, E: Q, F: R> () -> () {
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entry:
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// CHECK: keypath $KeyPath<Gen<D, E, F>, D>, <τ_0_0, τ_0_1, τ_0_2 where τ_0_0 : P, τ_0_1 : Q, τ_0_2 : R> (root $Gen<τ_0_0, τ_0_1, τ_0_2>; settable_property $τ_0_0, id @id_a : $@convention(thin) () -> (), getter @get_gen_a : $@convention(keypath_accessor_getter) <τ_0_0, τ_0_1, τ_0_2 where τ_0_0 : P, τ_0_1 : Q, τ_0_2 : R> (@in_guaranteed Gen<τ_0_0, τ_0_1, τ_0_2>) -> @out τ_0_0, setter @set_gen_a : $@convention(keypath_accessor_setter) <τ_0_0, τ_0_1, τ_0_2 where τ_0_0 : P, τ_0_1 : Q, τ_0_2 : R> (@in_guaranteed τ_0_0, @in_guaranteed Gen<τ_0_0, τ_0_1, τ_0_2>) -> ()) <D, E, F>
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%a = keypath $KeyPath<Gen<D, E, F>, D>, <G: P, H: Q, I: R> (root $Gen<G, H, I>; settable_property $G, id @id_a : $@convention(thin) () -> (), getter @get_gen_a : $@convention(keypath_accessor_getter) <X3: P, Y3: Q, Z3: R> (@in_guaranteed Gen<X3, Y3, Z3>) -> @out X3, setter @set_gen_a : $@convention(keypath_accessor_setter) <X4: P, Y4: Q, Z4: R> (@in_guaranteed X4, @in_guaranteed Gen<X4, Y4, Z4>) -> ()) <D, E, F>
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return undef : $()
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}
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// CHECK-LABEL: sil shared @tuple_generic
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sil shared @ tuple_generic : $@convention(thin) <T, U> () -> () {
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entry:
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// CHECK: keypath $WritableKeyPath<(T, U), T>, <τ_0_0, τ_0_1> (root $(τ_0_0, τ_0_1); tuple_element #0 : $τ_0_0) <T, U>
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%a = keypath $WritableKeyPath<(T, U), T>, <τ_0_0, τ_0_1> (root $(τ_0_0, τ_0_1); tuple_element #0 : $τ_0_0) <T, U>
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// CHECK: keypath $WritableKeyPath<(T, U), U>, <τ_0_0, τ_0_1> (root $(τ_0_0, τ_0_1); tuple_element #1 : $τ_0_1) <T, U>
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%b = keypath $WritableKeyPath<(T, U), U>, <τ_0_0, τ_0_1> (root $(τ_0_0, τ_0_1); tuple_element #1 : $τ_0_1) <T, U>
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return undef : $()
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}
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// CHECK-LABEL: sil @optional
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sil @optional : $@convention(thin) () -> () {
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entry:
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// CHECK: keypath $KeyPath<Optional<Int>, Optional<Int>>, (root $Optional<Int>; optional_chain : $Int; optional_wrap : $Optional<Int>)
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%a = keypath $KeyPath<Optional<Int>, Optional<Int>>, (root $Optional<Int>; optional_chain : $Int; optional_wrap : $Optional<Int>)
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// CHECK: keypath $KeyPath<Optional<Int>, Int>, (root $Optional<Int>; optional_force : $Int)
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%b = keypath $KeyPath<Optional<Int>, Int>, (root $Optional<Int>; optional_force : $Int)
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return undef : $()
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}
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// CHECK-LABEL: sil @indexes
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sil @indexes : $@convention(thin) (S, C) -> () {
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// CHECK: bb0([[S:%.*]] : $S, [[C:%.*]] : $C):
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entry(%s : $S, %c : $C):
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// CHECK: keypath $KeyPath<S, Int>, (root $S; settable_property $Int, id @id_a : $@convention(thin) () -> (), getter @get_s_int_subs : $@convention(keypath_accessor_getter) (@in_guaranteed S, @in_guaranteed (S, C)) -> @out Int, setter @set_s_int_subs : $@convention(keypath_accessor_setter) (@in_guaranteed Int, @in_guaranteed S, @in_guaranteed (S, C)) -> (), indices [%$0 : $S : $S, %$1 : $C : $C], indices_equals @subs_eq : $@convention(keypath_accessor_equals) (@in_guaranteed (S, C), @in_guaranteed (S, C)) -> Bool, indices_hash @subs_hash : $@convention(keypath_accessor_hash) (@in_guaranteed (S, C)) -> Int) ([[S]], [[C]])
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%a = keypath $KeyPath<S, Int>, (root $S; settable_property $Int, id @id_a : $@convention(thin) () -> (), getter @get_s_int_subs : $@convention(keypath_accessor_getter) (@in_guaranteed S, @in_guaranteed (S, C)) -> @out Int, setter @set_s_int_subs : $@convention(keypath_accessor_setter) (@in_guaranteed Int, @in_guaranteed S, @in_guaranteed (S, C)) -> (), indices [%$0 : $S : $S, %$1 : $C : $C], indices_equals @subs_eq : $@convention(keypath_accessor_equals) (@in_guaranteed (S, C), @in_guaranteed (S, C)) -> Bool, indices_hash @subs_hash : $@convention(keypath_accessor_hash) (@in_guaranteed (S, C)) -> Int) (%s, %c)
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// CHECK: [[T:%.*]] = alloc_stack
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%t = alloc_stack $S
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// CHECK: [[D:%.*]] = alloc_stack
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%d = alloc_stack $C
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// CHECK: keypath $KeyPath<S, Int>, <τ_0_0, τ_0_1, τ_0_2 where τ_0_0 : Hashable, τ_0_1 : Hashable, τ_0_2 : Hashable> (root $τ_0_0; settable_property $τ_0_2, id @id_a : $@convention(thin) () -> (), getter @get_gen_int_subs : $@convention(keypath_accessor_getter) <τ_0_0, τ_0_1, τ_0_2 where τ_0_0 : Hashable, τ_0_1 : Hashable, τ_0_2 : Hashable> (@in_guaranteed τ_0_0, @in_guaranteed (S, τ_0_2)) -> @out τ_0_2, setter @set_gen_int_subs : $@convention(keypath_accessor_setter) <τ_0_0, τ_0_1, τ_0_2 where τ_0_0 : Hashable, τ_0_1 : Hashable, τ_0_2 : Hashable> (@in_guaranteed τ_0_2, @in_guaranteed τ_0_0, @in_guaranteed (S, τ_0_2)) -> (), indices [%$0 : $τ_0_0 : $*τ_0_0, %$1 : $τ_0_1 : $*τ_0_1], indices_equals @gen_subs_eq : $@convention(keypath_accessor_equals) <τ_0_0, τ_0_1, τ_0_2 where τ_0_0 : Hashable, τ_0_1 : Hashable, τ_0_2 : Hashable> (@in_guaranteed (S, τ_0_2), @in_guaranteed (S, τ_0_2)) -> Bool, indices_hash @gen_subs_hash : $@convention(keypath_accessor_hash) <τ_0_0, τ_0_1, τ_0_2 where τ_0_0 : Hashable, τ_0_1 : Hashable, τ_0_2 : Hashable> (@in_guaranteed (S, τ_0_2)) -> Int) <S, C, Int> ([[T]], [[D]])
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%b = keypath $KeyPath<S, Int>, <τ_0_0: Hashable, Y: Hashable, Z: Hashable> (root $τ_0_0; settable_property $Z, id @id_a : $@convention(thin) () -> (), getter @get_gen_int_subs : $@convention(keypath_accessor_getter) <A: Hashable, B: Hashable, C: Hashable> (@in_guaranteed A, @in_guaranteed (S, C)) -> @out C, setter @set_gen_int_subs : $@convention(keypath_accessor_setter) <A: Hashable, B: Hashable, C: Hashable> (@in_guaranteed C, @in_guaranteed A, @in_guaranteed (S, C)) -> (), indices [%$0 : $τ_0_0 : $*τ_0_0, %$1 : $Y : $*Y], indices_equals @gen_subs_eq : $@convention(keypath_accessor_equals) <A: Hashable, B: Hashable, C: Hashable> (@in_guaranteed (S, C), @in_guaranteed (S, C)) -> Bool, indices_hash @gen_subs_hash : $@convention(keypath_accessor_hash) <A: Hashable, B: Hashable, C: Hashable> (@in_guaranteed (S, C)) -> Int) <S, C, Int> (%t, %d)
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dealloc_stack %d : $*C
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dealloc_stack %t : $*S
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return undef : $()
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}
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// CHECK-LABEL: sil @external
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sil @external : $@convention(thin) <D: P, E: Q, F: R> () -> () {
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entry:
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// CHECK: keypath $KeyPath<Gen<D, E, F>, D>, <τ_0_0, τ_0_1, τ_0_2 where τ_0_0 : P, τ_0_1 : Q, τ_0_2 : R> (root $Gen<τ_0_0, τ_0_1, τ_0_2>; settable_property $τ_0_0, id @id_a : $@convention(thin) () -> (), getter @get_gen_a : $@convention(keypath_accessor_getter) <τ_0_0, τ_0_1, τ_0_2 where τ_0_0 : P, τ_0_1 : Q, τ_0_2 : R> (@in_guaranteed Gen<τ_0_0, τ_0_1, τ_0_2>) -> @out τ_0_0, setter @set_gen_a : $@convention(keypath_accessor_setter) <τ_0_0, τ_0_1, τ_0_2 where τ_0_0 : P, τ_0_1 : Q, τ_0_2 : R> (@in_guaranteed τ_0_0, @in_guaranteed Gen<τ_0_0, τ_0_1, τ_0_2>) -> (), external #Gen.x<τ_0_0, τ_0_1, τ_0_2>) <D, E, F>
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%a = keypath $KeyPath<Gen<D, E, F>, D>, <G: P, H: Q, I: R> (root $Gen<G, H, I>; settable_property $G, id @id_a : $@convention(thin) () -> (), getter @get_gen_a : $@convention(keypath_accessor_getter) <X3: P, Y3: Q, Z3: R> (@in_guaranteed Gen<X3, Y3, Z3>) -> @out X3, setter @set_gen_a : $@convention(keypath_accessor_setter) <X4: P, Y4: Q, Z4: R> (@in_guaranteed X4, @in_guaranteed Gen<X4, Y4, Z4>) -> (), external #Gen.x<G, H, I>) <D, E, F>
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return undef : $()
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}
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sil @get_external_subscript : $@convention(keypath_accessor_getter) <T, U: Hashable> (@in_guaranteed External<T>, @in_guaranteed U) -> @out T
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sil @equals_external_subscript : $@convention(keypath_accessor_equals) <U: Hashable, T> (@in_guaranteed U, @in_guaranteed U) -> Bool
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sil @hash_external_subscript : $@convention(keypath_accessor_hash) <U: Hashable, T> (@in_guaranteed U) -> Int
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// CHECK-LABEL: sil_property #External.ro<τ_0_0> (stored_property #External.ro : $τ_0_0)
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sil_property #External.ro <T> (stored_property #External.ro : $T)
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// CHECK-LABEL: sil_property #External.subscript<τ_0_0><τ_1_0 where τ_1_0 : Hashable> (gettable_property $τ_0_0,
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// CHECK-SAME: id @id_a : $@convention(thin) () -> (),
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// CHECK-SAME: getter @get_external_subscript : $@convention(keypath_accessor_getter) <τ_0_0, τ_0_1 where τ_0_1 : Hashable> (@in_guaranteed External<τ_0_0>, @in_guaranteed τ_0_1) -> @out τ_0_0
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sil_property #External.subscript <T><U: Hashable> (gettable_property $T,
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id @id_a : $@convention(thin) () -> (),
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getter @get_external_subscript : $@convention(keypath_accessor_getter) <T, U: Hashable> (@in_guaranteed External<T>, @in_guaranteed U) -> @out T)
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