1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
// RUN: %target-swift-frontend -emit-sil -enable-copy-propagation=false -disable-objc-attr-requires-foundation-module %s | %FileCheck %s
// Using -enable-copy-propagation=false to pattern match against older SIL
// output. At least until -enable-copy-propagation has been around
// long enough in the same form to be worth rewriting CHECK lines.
// REQUIRES: objc_interop
// REQUIRES: swift_in_compiler
import ObjectiveC
// FIXME: This needs more tests
@objc protocol P3 {
init?(p3: Int64)
}
extension P3 {
// CHECK-LABEL: sil hidden @$s40definite_init_failable_initializers_objc2P3PAAE3p3axSgs5Int64V_tcfC : $@convention(method) <Self where Self : P3> (Int64, @thick Self.Type) -> @owned Optional<Self>
init!(p3a: Int64) {
self.init(p3: p3a)! // unnecessary-but-correct '!'
}
// CHECK-LABEL: sil hidden @$s40definite_init_failable_initializers_objc2P3PAAE3p3bxs5Int64V_tcfC : $@convention(method) <Self where Self : P3> (Int64, @thick Self.Type) -> @owned Self
init(p3b: Int64) {
self.init(p3: p3b)! // necessary '!'
}
}
class LifetimeTracked {
init(_: Int) {}
}
class FakeNSObject {
@objc dynamic init() {}
}
class Cat : FakeNSObject {
let x: LifetimeTracked
// CHECK-LABEL: sil hidden [exact_self_class] @$s40definite_init_failable_initializers_objc3CatC1n5afterACSgSi_SbtcfC
// CHECK: function_ref @$s40definite_init_failable_initializers_objc3CatC1n5afterACSgSi_Sbtcfc :
// CHECK: end sil function '$s40definite_init_failable_initializers_objc3CatC1n5afterACSgSi_SbtcfC'
// CHECK-LABEL: sil hidden @$s40definite_init_failable_initializers_objc3CatC1n5afterACSgSi_Sbtcfc : $@convention(method) (Int, Bool, @owned Cat) -> @owned Optional<Cat>
// CHECK: bb0([[ARG0:%.*]] : $Int, [[ARG1:%.*]] : $Bool, [[ARG2:%.*]] : $Cat):
// CHECK-NEXT: [[SELF_BOX:%.*]] = alloc_stack [var_decl] $Cat
// CHECK: store [[ARG2]] to [[SELF_BOX]] : $*Cat
// CHECK: [[FIELD_ADDR:%.*]] = ref_element_addr [[ARG2]] : $Cat, #Cat.x
// CHECK-NEXT: store {{%.*}} to [[FIELD_ADDR]] : $*LifetimeTracked
// CHECK-NEXT: strong_release [[ARG2]]
// CHECK-NEXT: [[COND:%.*]] = struct_extract %1 : $Bool, #Bool._value
// CHECK-NEXT: cond_br [[COND]], bb1, bb2
// CHECK: bb1:
// CHECK-NEXT: [[FIELD_ADDR:%.*]] = ref_element_addr [[ARG2]] : $Cat, #Cat.x
// CHECK-NEXT: [[FIELD_ADDR_ACCESS:%.*]] = begin_access [deinit] [static] [[FIELD_ADDR]]
// CHECK-NEXT: destroy_addr [[FIELD_ADDR_ACCESS]] : $*LifetimeTracked
// CHECK-NEXT: end_access [[FIELD_ADDR_ACCESS]]
// CHECK-NEXT: strong_release [[ARG2]]
// CHECK-NEXT: [[RELOAD_FROM_BOX:%.*]] = load [[SELF_BOX]]
// CHECK-NEXT: [[METATYPE:%.*]] = metatype $@thick Cat.Type
// CHECK-NEXT: dealloc_partial_ref [[RELOAD_FROM_BOX]] : $Cat, [[METATYPE]] : $@thick Cat.Type
// CHECK-NEXT: dealloc_stack [[SELF_BOX]] : $*Cat
// CHECK-NEXT: [[RESULT:%.*]] = enum $Optional<Cat>, #Optional.none!enumelt
// CHECK-NEXT: br bb3([[RESULT]] : $Optional<Cat>)
// CHECK: bb2:
// CHECK-NEXT: strong_release [[ARG2]]
// CHECK-NEXT: [[RELOAD_ARG2:%.*]] = load [[SELF_BOX]]
// CHECK-NEXT: [[SUPER:%.*]] = upcast [[RELOAD_ARG2]] : $Cat to $FakeNSObject
// CHECK-NEXT: [[SUB:%.*]] = unchecked_ref_cast [[RELOAD_ARG2]] : $Cat to $Cat
// CHECK-NEXT: [[SUPER_FN:%.*]] = objc_super_method [[SUB]] : $Cat, #FakeNSObject.init!initializer.foreign : (FakeNSObject.Type) -> () -> FakeNSObject, $@convention(objc_method) (@owned FakeNSObject) -> @owned FakeNSObject
// CHECK-NEXT: [[NEW_SUPER_SELF:%.*]] = apply [[SUPER_FN]]([[SUPER]]) : $@convention(objc_method) (@owned FakeNSObject) -> @owned FakeNSObject
// CHECK-NEXT: [[NEW_SELF:%.*]] = unchecked_ref_cast [[NEW_SUPER_SELF]] : $FakeNSObject to $Cat
// TODO: Once we re-enable arbitrary take promotion, this retain and the associated destroy_addr will go away.
// CHECK-NEXT: strong_retain [[NEW_SELF]]
// CHECK-NEXT: store [[NEW_SELF]] to [[SELF_BOX]] : $*Cat
// CHECK-NEXT: [[RESULT:%.*]] = enum $Optional<Cat>, #Optional.some!enumelt, [[NEW_SELF]] : $Cat
// CHECK-NEXT: destroy_addr [[SELF_BOX]]
// CHECK-NEXT: dealloc_stack [[SELF_BOX]] : $*Cat
// CHECK-NEXT: br bb3([[RESULT]] : $Optional<Cat>)
// CHECK: bb3([[RESULT:%.*]] : $Optional<Cat>):
// CHECK-NEXT: return [[RESULT]] : $Optional<Cat>
// CHECK-LABEL: sil private [thunk] @$s40definite_init_failable_initializers_objc3CatC1n5afterACSgSi_SbtcfcTo
// CHECK: function_ref @$s40definite_init_failable_initializers_objc3CatC1n5afterACSgSi_Sbtcfc :
// CHECK: end sil function '$s40definite_init_failable_initializers_objc3CatC1n5afterACSgSi_SbtcfcTo'
@objc init?(n: Int, after: Bool) {
self.x = LifetimeTracked(0)
if after {
return nil
}
super.init()
}
// CHECK-LABEL: sil hidden @$s40definite_init_failable_initializers_objc3CatC4fail5afterACSgSb_SbtcfC
// CHECK: function_ref @$s40definite_init_failable_initializers_objc3CatC4fail5afterACSgSb_Sbtcfc :
// CHECK: end sil function '$s40definite_init_failable_initializers_objc3CatC4fail5afterACSgSb_SbtcfC'
// CHECK-LABEL: sil hidden @$s40definite_init_failable_initializers_objc3CatC4fail5afterACSgSb_Sbtcfc : $@convention(method) (Bool, Bool, @owned Cat) -> @owned Optional<Cat>
// CHECK: bb0([[ARG0:%.*]] : $Bool, [[ARG1:%.*]] : $Bool, [[ARG2:%.*]] : $Cat):
// CHECK-NEXT: [[HAS_RUN_INIT_BOX:%.+]] = alloc_stack $Builtin.Int1
// CHECK-NEXT: [[SELF_BOX:%.+]] = alloc_stack [dynamic_lifetime] [var_decl] $Cat
// CHECK: store [[ARG2]] to [[SELF_BOX]] : $*Cat
// CHECK-NEXT: [[COND:%.+]] = struct_extract [[ARG0]] : $Bool, #Bool._value
// CHECK-NEXT: cond_br [[COND]], bb1, bb2
// CHECK: bb1:
// CHECK-NEXT: br [[ERROR_BRANCH:bb[0-9]+]]
// CHECK: bb{{[0-9]+}}:
// CHECK: [[RELOAD_SELF:%.*]] = load [[SELF_BOX]]
// CHECK: [[SELF_INIT:%.+]] = objc_method [[RELOAD_SELF]] : $Cat, #Cat.init!initializer.foreign : (Cat.Type) -> (Int, Bool) -> Cat?
// CHECK: [[NEW_OPT_SELF:%.+]] = apply [[SELF_INIT]]({{%.+}}, {{%.+}}, {{%.+}}) : $@convention(objc_method) (Int, ObjCBool, @owned Cat) -> @owned Optional<Cat>
// CHECK: [[COND:%.+]] = select_enum [[NEW_OPT_SELF]] : $Optional<Cat>
// CHECK-NEXT: cond_br [[COND]], [[SUCCESS_BRANCH:bb[0-9]+]], [[RELEASE_THEN_ERROR_BRANCH:bb[0-9]+]]
// CHECK: [[RELEASE_THEN_ERROR_BRANCH]]:
// CHECK-NEXT: release_value [[NEW_OPT_SELF]]
// CHECK-NEXT: br [[ERROR_BRANCH]]
// CHECK: [[SUCCESS_BRANCH]]:
// CHECK-NEXT: [[NEW_SELF:%.+]] = unchecked_enum_data [[NEW_OPT_SELF]] : $Optional<Cat>, #Optional.some!enumelt
// TODO: Once we re-enable arbitrary take promotion, this retain and the associated destroy_addr will go away.
// CHECK-NEXT: strong_retain [[NEW_SELF]]
// CHECK-NEXT: store [[NEW_SELF]] to [[SELF_BOX]] : $*Cat
// CHECK-NEXT: [[RESULT:%.+]] = enum $Optional<Cat>, #Optional.some!enumelt, [[NEW_SELF]] : $Cat
// CHECK-NEXT: destroy_addr [[SELF_BOX]]
// CHECK-NEXT: dealloc_stack [[SELF_BOX]] : $*Cat
// CHECK-NEXT: br [[RESULT_BRANCH:bb[0-9]+]]([[RESULT]] : $Optional<Cat>)
// CHECK: [[ERROR_BRANCH]]:
// CHECK-NEXT: [[COND:%.+]] = load [[HAS_RUN_INIT_BOX]] : $*Builtin.Int1
// CHECK-NEXT: cond_br [[COND]], [[ERROR_WITHOUT_DESTROY_BRANCH:bb[0-9]+]], [[ERROR_WITH_DESTROY_BRANCH:bb[0-9]+]]
// CHECK: [[ERROR_WITHOUT_DESTROY_BRANCH]]:
// CHECK-NEXT: br [[ERROR_CLEANUP_BRANCH:bb[0-9]+]]
// CHECK: [[ERROR_WITH_DESTROY_BRANCH]]:
// CHECK: [[RELOAD_SELF:%.*]] = load [[SELF_BOX]]
// CHECK-NEXT: [[MOST_DERIVED_TYPE:%.+]] = value_metatype $@thick Cat.Type, [[RELOAD_SELF]] : $Cat
// CHECK-NEXT: dealloc_partial_ref [[RELOAD_SELF]] : $Cat, [[MOST_DERIVED_TYPE]] : $@thick Cat.Type
// CHECK-NEXT: br [[ERROR_CLEANUP_BRANCH]]
// CHECK: [[ERROR_CLEANUP_BRANCH]]:
// CHECK-NEXT: dealloc_stack [[SELF_BOX]] : $*Cat
// CHECK-NEXT: [[NIL_RESULT:%.+]] = enum $Optional<Cat>, #Optional.none!enumelt
// CHECK-NEXT: br [[RESULT_BRANCH]]([[NIL_RESULT]] : $Optional<Cat>)
// CHECK: [[RESULT_BRANCH]]([[RESULT:%.+]] : $Optional<Cat>):
// CHECK-NEXT: dealloc_stack [[HAS_RUN_INIT_BOX]] : $*Builtin.Int1
// CHECK-NEXT: return [[RESULT]] : $Optional<Cat>
// CHECK: end sil function '$s40definite_init_failable_initializers_objc3CatC4fail5afterACSgSb_Sbtcfc'
// CHECK-LABEL: sil private [thunk] @$s40definite_init_failable_initializers_objc3CatC4fail5afterACSgSb_SbtcfcTo
// CHECK: function_ref @$s40definite_init_failable_initializers_objc3CatC4fail5afterACSgSb_Sbtcfc :
// CHECK: end sil function '$s40definite_init_failable_initializers_objc3CatC4fail5afterACSgSb_SbtcfcTo'
@objc convenience init?(fail: Bool, after: Bool) {
if fail {
return nil
}
self.init(n: 0, after: after)
}
}
|
