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// RUN: %target-swift-frontend -primary-file %s -emit-ir | %FileCheck %s --check-prefix=CHECK-%target-runtime --check-prefix=CHECK -DINT=i%target-ptrsize
sil_stage canonical
import Builtin
import Swift
class C {}
class G<T> {}
protocol P {}
class D : C, P {}
class E<T> : G<T>, P {}
protocol R {}
// Make sure we use native reference counting when the existential has a Swift
// class bound.
// CHECK-objc-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc void @checkRefcounting(ptr %0, ptr %1, ptr %2, ptr %3)
// CHECK-native-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc void @checkRefcounting(ptr %0, ptr %1, ptr %2, ptr %3)
// CHECK-NEXT: entry:
// CHECK-objc-NEXT: call void @swift_unknownObjectRelease(ptr %2)
// CHECK-native-NEXT: call void @swift_release(ptr %2)
// CHECK-NEXT: call void @swift_release(ptr %0)
// CHECK-NEXT: ret void
sil [ossa] @checkRefcounting : $@convention(thin) (@owned C & P, @owned AnyObject & P) -> () {
bb0(%0 : @owned $C & P, %1 : @owned $AnyObject & P):
destroy_value %1 : $AnyObject & P
destroy_value %0 : $C & P
%6 = tuple ()
return %6 : $()
}
// Make sure we call the runtime function with the right arguments when we
// instantiate metadata for a subclass existential.
sil @takesMetadata : $@convention(thin) <T> (@thick T.Type) -> ()
// CHECK-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc void @checkMetadata()
// CHECK-NEXT: entry:
// CHECK-NEXT: [[TYPE:%.*]] = call {{.*}}@"$s21subclass_existentials1P_AA1CCXcMD"
// CHECK-NEXT: call swiftcc void @takesMetadata(ptr [[TYPE]], ptr [[TYPE]])
// CHECK-NEXT: ret void
sil [ossa] @checkMetadata : $@convention(thin) () -> () {
bb0:
%0 = function_ref @takesMetadata : $@convention(thin) <τ_0_0> (@thick τ_0_0.Type) -> ()
%1 = metatype $@thin (C & P).Protocol
%2 = metatype $@thick (C & P).Protocol
%3 = apply %0<(C & P)>(%2) : $@convention(thin) <τ_0_0> (@thick τ_0_0.Type) -> ()
%4 = tuple ()
return %4 : $()
}
// CHECK-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc { ptr, ptr } @eraseToExistential(ptr %0)
// CHECK: [[RESULT1:%.*]] = insertvalue { ptr, ptr } undef, ptr %0, 0
// CHECK-NEXT: [[RESULT2:%.*]] = insertvalue { ptr, ptr } [[RESULT1]], ptr @"$s21subclass_existentials1DCAA1PAAWP", 1
// CHECK-NEXT: ret { ptr, ptr } [[RESULT2]]
sil @eraseToExistential : $@convention(thin) (@owned D) -> @owned C & P {
bb0(%0 : $D):
%2 = init_existential_ref %0 : $D : $D, $C & P
return %2 : $C & P
}
// CHECK-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc { ptr, ptr } @eraseToExistentialWithGeneric(ptr %0)
// CHECK: [[RESULT1:%.*]] = insertvalue { ptr, ptr } undef, ptr %0, 0
// CHECK-NEXT: [[RESULT2:%.*]] = insertvalue { ptr, ptr } [[RESULT1]], ptr @"$s21subclass_existentials1ECyxGAA1PAAWP", 1
// CHECK-NEXT: ret { ptr, ptr } [[RESULT2]]
sil @eraseToExistentialWithGeneric : $@convention(thin) <τ_0_0> (@owned E<τ_0_0>) -> @owned G<τ_0_0> & P {
bb0(%0 : $E<τ_0_0>):
%2 = init_existential_ref %0 : $E<τ_0_0> : $E<τ_0_0>, $G<τ_0_0> & P
return %2 : $G<τ_0_0> & P
}
// CHECK-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc void @checkExistentialDowncast(ptr %0, ptr %1, ptr %2)
sil [ossa] @checkExistentialDowncast : $@convention(thin) (@owned C, @owned C & P) -> () {
bb0(%0 : @owned $C, %1 : @owned $C & P):
// CHECK: [[METATYPE:%.*]] = load ptr, ptr %0, align {{4|8}}
// CHECK-NEXT: [[TMP:%.*]] = call swiftcc %swift.metadata_response @"$s21subclass_existentials1DCMa"([[INT]] 0)
// CHECK-NEXT: [[SUPERCLASS:%.*]] = extractvalue %swift.metadata_response [[TMP]], 0
// CHECK-NEXT: [[RESULT:%.*]] = call { ptr, ptr } @dynamic_cast_existential_1_superclass_unconditional(ptr %0, ptr [[METATYPE]], ptr [[SUPERCLASS]], {{.*}} @"$s21subclass_existentials1RMp"
// CHECK-NEXT: [[VALUE_ADDR:%.*]] = extractvalue { ptr, ptr } [[RESULT]], 0
// CHECK-NEXT: [[WTABLE:%.*]] = extractvalue { ptr, ptr } [[RESULT]], 1
%2 = unconditional_checked_cast %0 : $C to D & R
// CHECK-NEXT: call void @swift_release(ptr [[VALUE_ADDR]])
destroy_value %2 : $D & R
// CHECK-NEXT: [[RESULT:%.*]] = call ptr @swift_dynamicCastClassUnconditional(ptr %1, ptr [[SUPERCLASS]], {{.*}})
%3 = unconditional_checked_cast %1 : $C & P to D
// CHECK-NEXT: call void @swift_release(ptr [[RESULT]])
destroy_value %3 : $D
// CHECK-NEXT: ret void
%result = tuple ()
return %result : $()
}
// CHECK-LABEL: define linkonce_odr hidden { ptr, ptr } @dynamic_cast_existential_1_superclass_unconditional(ptr %0, ptr %1, ptr
// CHECK: entry:
// CHECK-NEXT: [[RESULT:%.*]] = call ptr @swift_dynamicCastMetatype(ptr %1, ptr %2)
// CHECK-NEXT: [[IS_SUBCLASS:%.*]] = icmp ne ptr [[RESULT]], null
// CHECK-NEXT: br i1 [[IS_SUBCLASS]], label %cont, label %fail
// CHECK: cont:
// CHECK-NEXT: [[WTABLE:%.*]] = call ptr @swift_conformsToProtocol{{(2)?}}(ptr %1, {{.*}} %3)
// CHECK-NEXT: [[IS_NOT_CONFORMING:%.*]] = icmp eq ptr [[WTABLE]], null
// CHECK-NEXT: br i1 [[IS_NOT_CONFORMING]], label %fail, label %cont1
// CHECK: cont1:
// CHECK-NEXT: [[RESULT1:%.*]] = insertvalue { ptr, ptr } undef, ptr %0, 0
// CHECK-NEXT: [[RESULT2:%.*]] = insertvalue { ptr, ptr } [[RESULT1]], ptr [[WTABLE]], 1
// CHECK-NEXT: ret { ptr, ptr } [[RESULT2]]
// CHECK: fail:
// CHECK-NEXT: call void @llvm.trap()
// CHECK-NEXT: unreachable
// CHECK-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc void @checkExistentialSameClassDowncast(ptr %0)
sil [ossa] @checkExistentialSameClassDowncast : $@convention(thin) (@owned C) -> () {
bb0(%0 : @owned $C):
// CHECK: [[METATYPE:%.*]] = load ptr, ptr %0, align {{4|8}}
// CHECK-NEXT: [[RESULT:%.*]] = call { ptr, ptr } @dynamic_cast_existential_1_unconditional(ptr %0, ptr [[METATYPE]], {{.*}} @"$s21subclass_existentials1PMp"
// CHECK-NEXT: [[VALUE_ADDR:%.*]] = extractvalue { ptr, ptr } [[RESULT]], 0
// CHECK-NEXT: [[WTABLE:%.*]] = extractvalue { ptr, ptr } [[RESULT]], 1
%2 = unconditional_checked_cast %0 : $C to C & P
// CHECK-NEXT: call void @swift_release(ptr [[VALUE_ADDR]])
destroy_value %2 : $C & P
// CHECK-NEXT: ret void
%result = tuple ()
return %result : $()
}
// CHECK-LABEL: define linkonce_odr hidden { ptr, ptr } @dynamic_cast_existential_1_unconditional(ptr %0, ptr
// CHECK: entry:
// CHECK-NEXT: [[WTABLE:%.*]] = call ptr @swift_conformsToProtocol{{(2)?}}(ptr %1, {{.*}} %2)
// CHECK-NEXT: [[IS_NOT_CONFORMING:%.*]] = icmp eq ptr [[WTABLE]], null
// CHECK-NEXT: br i1 [[IS_NOT_CONFORMING]], label %fail, label %cont
// CHECK: cont:
// CHECK-NEXT: [[RESULT1:%.*]] = insertvalue { ptr, ptr } undef, ptr %0, 0
// CHECK-NEXT: [[RESULT2:%.*]] = insertvalue { ptr, ptr } [[RESULT1]], ptr [[WTABLE]], 1
// CHECK-NEXT: ret { ptr, ptr } [[RESULT2]]
// CHECK: fail:
// CHECK-NEXT: call void @llvm.trap()
// CHECK-NEXT: unreachable
// CHECK-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc void @checkExistentialMetatypeDowncast(ptr %0, ptr %1, ptr %2)
sil @checkExistentialMetatypeDowncast : $@convention(thin) (@owned @thick C.Type, @owned @thick (C & P).Type) -> () {
bb0(%0 : $@thick C.Type, %1 : $@thick (C & P).Type):
// CHECK: [[TMP:%.*]] = call swiftcc %swift.metadata_response @"$s21subclass_existentials1DCMa"([[INT]] 0)
// CHECK-NEXT: [[SUPERCLASS:%.*]] = extractvalue %swift.metadata_response [[TMP]], 0
// CHECK-NEXT: [[RESULT:%.*]] = call { ptr, ptr } @dynamic_cast_existential_1_superclass_unconditional(ptr %0, ptr %0, ptr [[SUPERCLASS]], {{.*}} @"$s21subclass_existentials1RMp"
// CHECK-NEXT: [[VALUE_ADDR:%.*]] = extractvalue { ptr, ptr } [[RESULT]], 0
// CHECK-NEXT: [[WTABLE:%.*]] = extractvalue { ptr, ptr } [[RESULT]], 1
%2 = unconditional_checked_cast %0 : $@thick C.Type to @thick (D & R).Type
// CHECK-NEXT: [[RESULT:%.*]] = call ptr @swift_dynamicCastMetatypeUnconditional(ptr %1, ptr [[SUPERCLASS]], {{.*}})
%3 = unconditional_checked_cast %1 : $@thick (C & P).Type to @thick D.Type
// CHECK-NEXT: ret void
%result = tuple ()
return %result : $()
}
// CHECK-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc void @checkExistentialSameClassMetatypeDowncast(ptr %0)
sil @checkExistentialSameClassMetatypeDowncast : $@convention(thin) (@owned @thick C.Type) -> () {
bb0(%0 : $@thick C.Type):
// CHECK: [[RESULT:%.*]] = call { ptr, ptr } @dynamic_cast_existential_1_unconditional(ptr %0, ptr %0, {{.*}} @"$s21subclass_existentials1PMp"
// CHECK-NEXT: [[VALUE_ADDR:%.*]] = extractvalue { ptr, ptr } [[RESULT]], 0
// CHECK-NEXT: [[WTABLE:%.*]] = extractvalue { ptr, ptr } [[RESULT]], 1
%2 = unconditional_checked_cast %0 : $@thick C.Type to @thick (C & P).Type
// CHECK-NEXT: ret void
%result = tuple ()
return %result : $()
}
sil_vtable C {}
sil_vtable D {}
sil_vtable G {}
sil_vtable E {}
|
