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This is kind of complicated, because an enum can be trivial for one case and not trivial for another case. We need to check at which parts of the function we can prove that the enum does (or could) have a trivial case. In such a branch, it's not required in SIL to destroy the enum location. Also, document the rules and requirements for enum memory locations in SIL.rst. rdar://73770085
109 lines
7.5 KiB
Swift
109 lines
7.5 KiB
Swift
// RUN: %target-swift-emit-silgen(mock-sdk: %clang-importer-sdk) -I %S/../IDE/Inputs/custom-modules %s | %FileCheck %s
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// REQUIRES: objc_interop
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import Foundation
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import ImportAsMember.Class
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// CHECK-LABEL: sil shared [serializable] [thunk] [ossa] @$sSo4HiveC5queenABSgSo3BeeCSg_tcfCTO : $@convention(method) (@owned Optional<Bee>, @thick Hive.Type) -> @owned Optional<Hive>
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func testInstanceTypeFactoryMethod(queen: Bee) {
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// CHECK: bb0([[QUEEN:%[0-9]+]] : @owned $Optional<Bee>, [[HIVE_META:%[0-9]+]] : $@thick Hive.Type):
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// CHECK-NEXT: [[HIVE_META_OBJC:%[0-9]+]] = thick_to_objc_metatype [[HIVE_META]] : $@thick Hive.Type to $@objc_metatype Hive.Type
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// CHECK-NEXT: [[FACTORY:%[0-9]+]] = objc_method [[HIVE_META_OBJC]] : $@objc_metatype Hive.Type, #Hive.init!allocator.foreign : (Hive.Type) -> (Bee?) -> Hive?, $@convention(objc_method) (Optional<Bee>, @objc_metatype Hive.Type) -> @autoreleased Optional<Hive>
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// CHECK-NEXT: [[HIVE:%[0-9]+]] = apply [[FACTORY]]([[QUEEN]], [[HIVE_META_OBJC]]) : $@convention(objc_method) (Optional<Bee>, @objc_metatype Hive.Type) -> @autoreleased Optional<Hive>
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// CHECK-NEXT: destroy_value [[QUEEN]]
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// CHECK-NEXT: return [[HIVE]] : $Optional<Hive>
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var hive1 = Hive(queen: queen)
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}
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extension Hive {
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// FIXME: This whole approach is wrong. This should be a factory initializer,
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// not a convenience initializer, which means it does not have an initializing
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// entry point at all.
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// CHECK-LABEL: sil hidden [ossa] @$sSo4HiveC17objc_factory_initE10otherQueenABSo3BeeC_tcfC
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// CHECK: bb0([[QUEEN:%.*]] : @owned $Bee, [[META:%.*]] : $@thick Hive.Type):
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// CHECK: [[SELF_BOX:%.*]] = alloc_box ${ var Hive }, let, name "self"
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// CHECK: [[MU:%.*]] = mark_uninitialized [delegatingself] [[SELF_BOX]]
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// CHECK: [[PB_BOX:%.*]] = project_box [[MU]] : ${ var Hive }, 0
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// CHECK: [[OBJC_META:%[0-9]+]] = thick_to_objc_metatype [[META]] : $@thick Hive.Type to $@objc_metatype Hive.Type
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// CHECK: [[BORROWED_QUEEN:%.*]] = begin_borrow [[QUEEN]]
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// CHECK: [[COPIED_BORROWED_QUEEN:%.*]] = copy_value [[BORROWED_QUEEN]]
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// CHECK: [[OPT_COPIED_BORROWED_QUEEN:%.*]] = enum $Optional<Bee>, #Optional.some!enumelt, [[COPIED_BORROWED_QUEEN]]
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// CHECK: [[FACTORY:%[0-9]+]] = objc_method [[OBJC_META]] : $@objc_metatype Hive.Type, #Hive.init!allocator.foreign : (Hive.Type) -> (Bee?) -> Hive?, $@convention(objc_method) (Optional<Bee>, @objc_metatype Hive.Type) -> @autoreleased Optional<Hive>
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// CHECK: [[NEW_HIVE:%.*]] = apply [[FACTORY]]([[OPT_COPIED_BORROWED_QUEEN]], [[OBJC_META]]) : $@convention(objc_method) (Optional<Bee>, @objc_metatype Hive.Type) -> @autoreleased Optional<Hive>
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// CHECK: destroy_value [[OPT_COPIED_BORROWED_QUEEN]]
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// CHECK: end_borrow [[BORROWED_QUEEN]]
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// CHECK: switch_enum [[NEW_HIVE]] : $Optional<Hive>, case #Optional.some!enumelt: [[SOME_BB:bb[0-9]+]]
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//
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// CHECK: [[SOME_BB]]([[NEW_HIVE:%.*]] : @owned $Hive):
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// CHECK: assign [[NEW_HIVE]] to [[PB_BOX]]
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// CHECK: } // end sil function '$sSo4HiveC17objc_factory_initE10otherQueenABSo3BeeC_tcfC'
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convenience init(otherQueen other: Bee) {
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self.init(queen: other)
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}
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// CHECK-LABEL: sil hidden [ossa] @$sSo4HiveC17objc_factory_initE15otherFlakyQueenABSo3BeeC_tKcfC
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// CHECK: bb0([[QUEEN:%.*]] : @owned $Bee, [[META:%.*]] : $@thick Hive.Type):
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// CHECK: [[SELF_BOX:%.*]] = alloc_box ${ var Hive }, let, name "self"
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// CHECK: [[MU:%.*]] = mark_uninitialized [delegatingself] [[SELF_BOX]]
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// CHECK: [[PB_BOX:%.*]] = project_box [[MU]] : ${ var Hive }, 0
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// CHECK: [[FOREIGN_ERROR_STACK:%.*]] = alloc_stack [dynamic_lifetime] $Optional<NSError>
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// CHECK: [[OBJC_META:%[0-9]+]] = thick_to_objc_metatype [[META]] : $@thick Hive.Type to $@objc_metatype Hive.Type
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// CHECK: [[BORROWED_QUEEN:%.*]] = begin_borrow [[QUEEN]]
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// CHECK: [[COPIED_BORROWED_QUEEN:%.*]] = copy_value [[BORROWED_QUEEN]]
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// CHECK: [[OPT_COPIED_BORROWED_QUEEN:%.*]] = enum $Optional<Bee>, #Optional.some!enumelt, [[COPIED_BORROWED_QUEEN]]
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// CHECK: [[FACTORY:%[0-9]+]] = objc_method [[OBJC_META]] : $@objc_metatype Hive.Type, #Hive.init!allocator.foreign : (Hive.Type) -> (Bee?) throws -> Hive, $@convention(objc_method) (Optional<Bee>, Optional<AutoreleasingUnsafeMutablePointer<Optional<NSError>>>, @objc_metatype Hive.Type) -> @autoreleased Optional<Hive> // user: %25
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// CHECK: [[ERROR_PTR_STACK:%.*]] = alloc_stack $AutoreleasingUnsafeMutablePointer<Optional<NSError>>
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// CHECK: [[ERROR_PTR:%.*]] = load [trivial] [[ERROR_PTR_STACK]]
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// CHECK: [[OPT_ERROR_PTR:%.*]] = enum $Optional<AutoreleasingUnsafeMutablePointer<Optional<NSError>>>, #Optional.some!enumelt, [[ERROR_PTR]]
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// CHECK: [[OPT_NEW_HIVE:%.*]] = apply [[FACTORY]]([[OPT_COPIED_BORROWED_QUEEN]], [[OPT_ERROR_PTR]], [[OBJC_META]]) : $@convention(objc_method) (Optional<Bee>, Optional<AutoreleasingUnsafeMutablePointer<Optional<NSError>>>, @objc_metatype Hive.Type) -> @autoreleased Optional<Hive>
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// CHECK: switch_enum [[OPT_NEW_HIVE]] : $Optional<Hive>, case #Optional.some!enumelt: [[NORMAL_BB:bb[0-9]+]], case #Optional.none!enumelt: [[ERROR_BB:bb[0-9]+]] // id: %34
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//
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// CHECK: bb1([[HIVE:%.*]] : @owned $Hive):
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// CHECK: assign [[HIVE]] to [[PB_BOX]]
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// CHECK: dealloc_stack [[FOREIGN_ERROR_STACK]]
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// CHECK: [[HIVE_COPY:%.*]] = load [copy] [[PB_BOX]]
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// CHECK: return [[HIVE_COPY]]
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// CHECK: bb2:
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// CHECK: [[OPTIONAL_NSERROR:%.*]] = load [take] [[FOREIGN_ERROR_STACK]] : $*Optional<NSError>
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// CHECK: [[CONVERT_NSERROR_TO_ERROR_FUNC:%.*]] = function_ref @$s10Foundation22_convertNSErrorToErrorys0E0_pSo0C0CSgF : $@convention(thin) (@guaranteed Optional<NSError>) -> @owned Error
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// CHECK: [[ERROR:%.*]] = apply [[CONVERT_NSERROR_TO_ERROR_FUNC]]([[OPTIONAL_NSERROR]]) : $@convention(thin) (@guaranteed Optional<NSError>) -> @owned Error
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// CHECK: "willThrow"([[ERROR]] : $Error)
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// CHECK: dealloc_stack [[FOREIGN_ERROR_STACK]]
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// CHECK: throw [[ERROR]] : $Error
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// CHECK: } // end sil function '$sSo4HiveC17objc_factory_initE15otherFlakyQueenABSo3BeeC_tKcfC'
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convenience init(otherFlakyQueen other: Bee) throws {
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try self.init(flakyQueen: other)
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}
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}
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extension SomeClass {
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// CHECK-LABEL: sil hidden [ossa] @$sSo12IAMSomeClassC17objc_factory_initE6doubleABSd_tcfC
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// CHECK: bb0([[DOUBLE:%.*]] : $Double,
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// CHECK-NOT: value_metatype
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// CHECK: [[FNREF:%[0-9]+]] = function_ref @MakeIAMSomeClass
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// CHECK: apply [[FNREF]]([[DOUBLE]])
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convenience init(double: Double) {
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self.init(value: double)
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}
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}
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class SubHive : Hive {
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// CHECK-LABEL: sil hidden [ossa] @$s17objc_factory_init7SubHiveC20delegatesToInheritedACyt_tcfC
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// CHECK: bb0([[METATYPE:%.*]] : $@thick SubHive.Type):
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// CHECK: [[SELF_BOX:%.*]] = alloc_box ${ var SubHive }, let, name "self"
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// CHECK: [[MU:%.*]] = mark_uninitialized [delegatingself] [[SELF_BOX]] : ${ var SubHive }
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// CHECK: [[PB_BOX:%.*]] = project_box [[MU]] : ${ var SubHive }, 0
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// CHECK: [[UP_METATYPE:%.*]] = upcast [[METATYPE]]
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// CHECK: [[OBJC_METATYPE:%.*]] = thick_to_objc_metatype [[UP_METATYPE]]
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// CHECK: [[QUEEN:%.*]] = unchecked_ref_cast {{.*}} : $Bee to $Optional<Bee>
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// CHECK: [[HIVE_INIT_FN:%.*]] = objc_method [[OBJC_METATYPE]] : $@objc_metatype Hive.Type, #Hive.init!allocator.foreign
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// CHECK: apply [[HIVE_INIT_FN]]([[QUEEN]], [[OBJC_METATYPE]]) : $@convention(objc_method) (Optional<Bee>, @objc_metatype Hive.Type) -> @autoreleased Optional<Hive>
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// CHECK: destroy_value [[QUEEN]]
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// CHECK: } // end sil function '$s17objc_factory_init7SubHiveC20delegatesToInheritedACyt_tcfC'
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convenience init(delegatesToInherited: ()) {
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self.init(queen: Bee())
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}
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}
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