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// RUN: %target-swift-frontend -enable-copy-propagation=requested-passes-only -enable-lexical-lifetimes=false -emit-sil %s -swift-version 5 -verify | %FileCheck %s
// Ensure that convenience initializers on concrete types can
// delegate to factory initializers defined in protocol
// extensions.
protocol TriviallyConstructible {
init(lower: Int)
}
extension TriviallyConstructible {
init(middle: Int) {
self.init(lower: middle)
}
init?(failingMiddle: Int) {
self.init(lower: failingMiddle)
}
init(throwingMiddle: Int) throws {
self.init(lower: throwingMiddle)
}
}
class TrivialClass : TriviallyConstructible {
required init(lower: Int) {}
// CHECK-LABEL: sil hidden @$s023definite_init_protocol_B012TrivialClassC5upperACSi_tcfC
// CHECK: bb0(%0 : $Int, [[SELF_META:%.*]] : $@thick TrivialClass.Type):
// CHECK-NEXT: [[SELF_BOX:%.*]] = alloc_stack [var_decl] $TrivialClass
// CHECK-NEXT: debug_value
// CHECK-NEXT: [[METATYPE:%.*]] = unchecked_trivial_bit_cast [[SELF_META]] {{.*}} to $@thick @dynamic_self TrivialClass.Type
// CHECK-NEXT: [[RESULT:%.*]] = alloc_stack $TrivialClass
// CHECK-NEXT: // function_ref
// CHECK-NEXT: [[FN:%.*]] = function_ref @$s023definite_init_protocol_B022TriviallyConstructiblePAAE6middlexSi_tcfC
// CHECK-NEXT: apply [[FN]]<@dynamic_self TrivialClass>([[RESULT]], %0, [[METATYPE]])
// CHECK-NEXT: [[NEW_SELF:%.*]] = load [[RESULT]]
// TODO: Once we restore arbitrary takes, the strong_retain/destroy_addr pair below will go away.
// CHECK-NEXT: strong_retain [[NEW_SELF]]
// CHECK-NEXT: store [[NEW_SELF]] to [[SELF_BOX]]
// CHECK-NEXT: dealloc_stack [[RESULT]]
// CHECK-NEXT: destroy_addr [[SELF_BOX]]
// CHECK-NEXT: dealloc_stack [[SELF_BOX]]
// CHECK-NEXT: return [[NEW_SELF]]
convenience init(upper: Int) {
self.init(middle: upper)
}
convenience init?(failingUpper: Int) {
self.init(failingMiddle: failingUpper)
}
convenience init(throwingUpper: Int) throws {
try self.init(throwingMiddle: throwingUpper)
}
}
struct TrivialStruct : TriviallyConstructible {
let x: Int
init(lower: Int) { self.x = lower }
// CHECK-LABEL: sil hidden @$s023definite_init_protocol_B013TrivialStructV5upperACSi_tcfC
// CHECK: bb0(%0 : $Int, %1 : $@thin TrivialStruct.Type):
// CHECK-NEXT: [[SELF:%.*]] = alloc_stack [var_decl] $TrivialStruct
// CHECK: [[SELF_BOX:%.*]] = alloc_stack $TrivialStruct
// CHECK-NEXT: [[METATYPE:%.*]] = metatype $@thick TrivialStruct.Type
// CHECK: [[FN:%.*]] = function_ref @$s023definite_init_protocol_B022TriviallyConstructiblePAAE6middlexSi_tcfC
// CHECK-NEXT: apply [[FN]]<TrivialStruct>([[SELF_BOX]], %0, [[METATYPE]])
// CHECK-NEXT: [[NEW_SELF:%.*]] = load [[SELF_BOX]]
// CHECK-NEXT: store [[NEW_SELF]] to [[SELF]]
// CHECK-NEXT: dealloc_stack [[SELF_BOX]]
// CHECK-NEXT: dealloc_stack [[SELF]]
// CHECK-NEXT: return [[NEW_SELF]]
init(upper: Int) {
self.init(middle: upper)
}
init?(failingUpper: Int) {
self.init(failingMiddle: failingUpper)
}
init(throwingUpper: Int) throws {
try self.init(throwingMiddle: throwingUpper)
}
}
struct AddressOnlyStruct : TriviallyConstructible {
let x: Any
init(lower: Int) { self.x = lower }
// CHECK-LABEL: sil hidden @$s023definite_init_protocol_B017AddressOnlyStructV5upperACSi_tcfC
// CHECK: bb0(%0 : $*AddressOnlyStruct, %1 : $Int, %2 : $@thin AddressOnlyStruct.Type):
// CHECK-NEXT: [[SELF:%.*]] = alloc_stack [var_decl] $AddressOnlyStruct
// CHECK: [[SELF_BOX:%.*]] = alloc_stack $AddressOnlyStruct
// CHECK-NEXT: [[METATYPE:%.*]] = metatype $@thick AddressOnlyStruct.Type
// CHECK: [[FN:%.*]] = function_ref @$s023definite_init_protocol_B022TriviallyConstructiblePAAE6middlexSi_tcfC
// CHECK-NEXT: apply [[FN]]<AddressOnlyStruct>([[SELF_BOX]], %1, [[METATYPE]])
// CHECK-NEXT: copy_addr [take] [[SELF_BOX]] to [init] [[SELF]]
// CHECK-NEXT: dealloc_stack [[SELF_BOX]]
// CHECK-NEXT: copy_addr [take] [[SELF]] to [init] %0
// CHECK-NEXT: dealloc_stack [[SELF]]
// CHECK-NEXT: [[RESULT:%.*]] = tuple ()
// CHECK-NEXT: return [[RESULT]]
init(upper: Int) {
self.init(middle: upper)
}
init?(failingUpper: Int) {
self.init(failingMiddle: failingUpper)
}
init(throwingUpper: Int) throws {
try self.init(throwingMiddle: throwingUpper)
}
}
enum TrivialEnum : TriviallyConstructible {
case NotSoTrivial
init(lower: Int) {
self = .NotSoTrivial
}
// CHECK-LABEL: sil hidden @$s023definite_init_protocol_B011TrivialEnumO5upperACSi_tcfC
// CHECK: bb0(%0 : $Int, %1 : $@thin TrivialEnum.Type):
// CHECK-NEXT: [[SELF:%.*]] = alloc_stack [var_decl] $TrivialEnum
// CHECK: [[SELF_BOX:%.*]] = alloc_stack $TrivialEnum
// CHECK-NEXT: [[METATYPE:%.*]] = metatype $@thick TrivialEnum.Type
// CHECK: [[FN:%.*]] = function_ref @$s023definite_init_protocol_B022TriviallyConstructiblePAAE6middlexSi_tcfC
// CHECK-NEXT: apply [[FN]]<TrivialEnum>([[SELF_BOX]], %0, [[METATYPE]])
// CHECK-NEXT: [[NEW_SELF:%.*]] = load [[SELF_BOX]]
// CHECK-NEXT: store [[NEW_SELF]] to [[SELF]]
// CHECK-NEXT: dealloc_stack [[SELF_BOX]]
// CHECK-NEXT: dealloc_stack [[SELF]]
// CHECK-NEXT: return [[NEW_SELF]]
init(upper: Int) {
self.init(middle: upper)
}
init?(failingUpper: Int) {
self.init(failingMiddle: failingUpper)
}
init(throwingUpper: Int) throws {
try self.init(throwingMiddle: throwingUpper)
}
}
|
