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
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
|
// RUN: %target-sil-opt -enable-sil-verify-all %s -sil-combine -jumpthread-simplify-cfg | %FileCheck %s
sil_stage canonical
import Builtin
import Swift
// CHECK-LABEL: sil [ossa] @convert_inject_enum_addr_select_enum_addr_into_cond_br : $@convention(thin) (@in Int, @inout _Stdout, @in_guaranteed any CustomStringConvertible) -> ()
// XHECK-NOT: init_existential_addr
// XHECK-NOT: inject_enum_addr
// XHECK-NOT: select_enum_addr
// XHECK-NOT: unchecked_take_enum_data_addr
// XHECK: return
// CHEcK: } // end sil function 'convert_inject_enum_addr_select_enum_addr_into_cond_br'
sil [ossa] @convert_inject_enum_addr_select_enum_addr_into_cond_br : $@convention(thin) (@in Int, @inout _Stdout, @in_guaranteed CustomStringConvertible) -> () {
bb0(%0 : $*Int, %1 : $*_Stdout, %1a : $*CustomStringConvertible):
%2 = alloc_stack $CustomStringConvertible
%3 = alloc_stack $Optional<CustomStringConvertible>
%4 = init_enum_data_addr %3 : $*Optional<CustomStringConvertible>, #Optional.some!enumelt
%5 = alloc_stack $Int
%6 = load [trivial] %0 : $*Int
store %6 to [trivial] %5 : $*Int
unconditional_checked_cast_addr Int in %5 : $*Int to CustomStringConvertible in %4 : $*CustomStringConvertible
inject_enum_addr %3 : $*Optional<CustomStringConvertible>, #Optional.some!enumelt
dealloc_stack %5 : $*Int
%11 = integer_literal $Builtin.Int1, -1
%12 = integer_literal $Builtin.Int1, 0
%13 = select_enum_addr %3 : $*Optional<CustomStringConvertible>, case #Optional.some!enumelt: %11, case #Optional.none!enumelt: %12 : $Builtin.Int1
cond_br %13, bb2, bb1a
bb1a:
destroy_addr %3 : $*Optional<CustomStringConvertible>
copy_addr %1a to [init] %2 : $*CustomStringConvertible
br bb1
bb1:
%15 = tuple ()
dealloc_stack %3 : $*Optional<CustomStringConvertible>
destroy_addr %2 : $*CustomStringConvertible
dealloc_stack %2 : $*CustomStringConvertible
return %15 : $()
bb2:
%19 = unchecked_take_enum_data_addr %3 : $*Optional<CustomStringConvertible>, #Optional.some!enumelt
copy_addr [take] %19 to [init] %2 : $*CustomStringConvertible
br bb1
}
// CHECK-LABEL: sil [ossa] @convert_inject_enum_addr_switch_enum_addr_into_cond_br : $@convention(thin) (@in Int, @inout _Stdout, @in_guaranteed any CustomStringConvertible) -> ()
// XHECK-NOT: init_existential_addr
// XHECK-NOT: inject_enum_addr
// XHECK-NOT: switch_enum_addr
// XHECK-NOT: unchecked_take_enum_data_addr
// XHECK: return
// XHECK: } // end sil function 'convert_inject_enum_addr_switch_enum_addr_into_cond_br'
sil [ossa] @convert_inject_enum_addr_switch_enum_addr_into_cond_br : $@convention(thin) (@in Int, @inout _Stdout, @in_guaranteed CustomStringConvertible) -> () {
bb0(%0 : $*Int, %1 : $*_Stdout, %1a : $*CustomStringConvertible):
%2 = alloc_stack $CustomStringConvertible
%3 = alloc_stack $Optional<CustomStringConvertible>
%4 = init_enum_data_addr %3 : $*Optional<CustomStringConvertible>, #Optional.some!enumelt
%5 = alloc_stack $Int
%6 = load [trivial] %0 : $*Int
store %6 to [trivial] %5 : $*Int
unconditional_checked_cast_addr Int in %5 : $*Int to CustomStringConvertible in %4 : $*CustomStringConvertible
inject_enum_addr %3 : $*Optional<CustomStringConvertible>, #Optional.some!enumelt
dealloc_stack %5 : $*Int
switch_enum_addr %3 : $*Optional<CustomStringConvertible>, case #Optional.some!enumelt: bb3, case #Optional.none!enumelt: bb2
bb1:
%15 = tuple ()
dealloc_stack %3 : $*Optional<CustomStringConvertible>
destroy_addr %2 : $*CustomStringConvertible
dealloc_stack %2 : $*CustomStringConvertible
return %15 : $()
bb2:
copy_addr %1a to [init] %2 : $*CustomStringConvertible
br bb1
bb3:
%19 = unchecked_take_enum_data_addr %3 : $*Optional<CustomStringConvertible>, #Optional.some!enumelt
copy_addr [take] %19 to [init] %2 : $*CustomStringConvertible
br bb1
}
// Check that a checked_cast_addr_br converting a known type into a protocol type
// is performed at the compile-time if protocol conformances are statically known.
//
// TODO: This is disabled for now since the transformation is done by jumpthread
// simplify-cfg that has not been updated yet for ossa.
//
// CHECK-LABEL: sil [ossa] @convert_checked_cast_addr_br_into_unconditional_checked_cast_addr_cond_br : $@convention(thin) (@in Int, @inout _Stdout) -> ()
// XHECK: checked_cast_addr_br
// XHECK: } // end sil function 'convert_checked_cast_addr_br_into_unconditional_checked_cast_addr_cond_br'
// xXHECK: store
// xXHECK-NOT: checked_cast_addr_br
// xXHECK-NOT: bb1
// xXHECK: inject_enum_addr %{{.*}} : $*Optional<CustomStringConvertible>, #Optional.some!enumelt
// xXHECK: dealloc_stack
// xXHECK: return
sil [ossa] @convert_checked_cast_addr_br_into_unconditional_checked_cast_addr_cond_br : $@convention(thin) (@in Int, @inout _Stdout) -> () {
bb0(%0 : $*Int, %1 : $*_Stdout):
%2 = alloc_stack $CustomStringConvertible
%3 = alloc_stack $Optional<CustomStringConvertible>
%4 = init_enum_data_addr %3 : $*Optional<CustomStringConvertible>, #Optional.some!enumelt
%5 = alloc_stack $Int
%6 = load [trivial] %0 : $*Int
store %6 to [trivial] %5 : $*Int
checked_cast_addr_br take_always Int in %5 : $*Int to CustomStringConvertible in %4 : $*CustomStringConvertible, bb1, bb22
bb1:
inject_enum_addr %3 : $*Optional<CustomStringConvertible>, #Optional.some!enumelt
br bb2
bb2:
dealloc_stack %5 : $*Int
destroy_addr %3 : $*Optional<CustomStringConvertible>
dealloc_stack %3 : $*Optional<CustomStringConvertible>
%12 = integer_literal $Builtin.Int1, -1
%13 = integer_literal $Builtin.Int1, 0
%26 = tuple ()
dealloc_stack %2 : $*CustomStringConvertible
return %26 : $()
bb22:
inject_enum_addr %3 : $*Optional<CustomStringConvertible>, #Optional.none!enumelt
br bb2
}
class A {
}
private final class B {
}
public class C {
}
// D cannot be extended elsewhere, but C can!
private class D : C {
}
// Check that a checked_cast_addr_br converting a known type into a protocol type
// is performed at the compile-time if protocol conformances are statically known.
// In a negative case, take care that check for internal types are not folded (unless
// a whole module optimization is used), because an extension implementing a conformance
// could be defined elsewhere.
//
// CHECK-LABEL: sil [ossa] @convert_checked_cast_addr_br_with_internal_type : $@convention(thin) (@in A, @inout _Stdout) -> ()
// XHECK: checked_cast_addr_br
// XHECK: inject_enum_addr %{{.*}} : $*Optional<CustomStringConvertible>, #Optional.some!enumelt
// XHECK: dealloc_stack
// XHECK: return
// XHECK: inject_enum_addr %{{.*}} : $*Optional<CustomStringConvertible>, #Optional.none!enumelt
// XHECK: }
sil [ossa] @convert_checked_cast_addr_br_with_internal_type : $@convention(thin) (@in A, @inout _Stdout) -> () {
bb0(%0 : $*A, %1 : $*_Stdout):
%2 = alloc_stack $CustomStringConvertible
%3 = alloc_stack $Optional<CustomStringConvertible>
%4 = init_enum_data_addr %3 : $*Optional<CustomStringConvertible>, #Optional.some!enumelt
%5 = alloc_stack $A
%6 = load [take] %0 : $*A
store %6 to [init] %5 : $*A
checked_cast_addr_br take_always A in %5 : $*A to CustomStringConvertible in %4 : $*CustomStringConvertible, bb1, bb22
bb1:
inject_enum_addr %3 : $*Optional<CustomStringConvertible>, #Optional.some!enumelt
br bb2
bb2:
dealloc_stack %5 : $*A
destroy_addr %3 : $*Optional<CustomStringConvertible>
dealloc_stack %3 : $*Optional<CustomStringConvertible>
%12 = integer_literal $Builtin.Int1, -1
%13 = integer_literal $Builtin.Int1, 0
%26 = tuple ()
dealloc_stack %2 : $*CustomStringConvertible
return %26 : $()
bb22:
inject_enum_addr %3 : $*Optional<CustomStringConvertible>, #Optional.none!enumelt
br bb2
}
// Check that a checked_cast_addr_br converting a known type into a protocol type
// is performed at the compile-time if protocol conformances are statically known.
// In a negative case, if the source type is private, it is safe to fold the check,
// because a conformance for this type cannot be defined elsewhere.
//
// TODO: This is handled by jumpthread simplify-cfg which has not been updated
// yet for OSSA so just validate we don't optimize this.
//
// CHECK-LABEL: sil [ossa] @convert_checked_cast_addr_br_with_private_type : $@convention(thin) (@in B, @inout _Stdout) -> ()
// XHECK: checked_cast_addr_br
// XHECK: } // end sil function 'convert_checked_cast_addr_br_with_private_type'
// xXHECK: store
// xXHECK-NOT: checked_cast_addr_br
// xXHECK-NOT: bb1
// xXHECK: inject_enum_addr %{{.*}} : $*Optional<CustomStringConvertible>, #Optional.none!enumelt
// xXHECK: dealloc_stack
// xXHECK: return
sil [ossa] @convert_checked_cast_addr_br_with_private_type : $@convention(thin) (@in B, @inout _Stdout) -> () {
bb0(%0 : $*B, %1 : $*_Stdout):
%2 = alloc_stack $CustomStringConvertible
%3 = alloc_stack $Optional<CustomStringConvertible>
%4 = init_enum_data_addr %3 : $*Optional<CustomStringConvertible>, #Optional.some!enumelt
%5 = alloc_stack $B
%6 = load [take] %0 : $*B
store %6 to [init] %5 : $*B
checked_cast_addr_br take_always B in %5 : $*B to CustomStringConvertible in %4 : $*CustomStringConvertible, bb1, bb22
bb1:
inject_enum_addr %3 : $*Optional<CustomStringConvertible>, #Optional.some!enumelt
br bb2
bb2:
dealloc_stack %5 : $*B
destroy_addr %3 : $*Optional<CustomStringConvertible>
dealloc_stack %3 : $*Optional<CustomStringConvertible>
%12 = integer_literal $Builtin.Int1, -1
%13 = integer_literal $Builtin.Int1, 0
%26 = tuple ()
dealloc_stack %2 : $*CustomStringConvertible
return %26 : $()
bb22:
inject_enum_addr %3 : $*Optional<CustomStringConvertible>, #Optional.none!enumelt
br bb2
}
// Check that a checked_cast_addr_br converting a known type into a protocol type
// is performed at the compile-time if protocol conformances are statically known.
// In a negative case, take care that cast for private types are not folded if one
// of its superclasses could have a conformance extension defined elsewhere.
//
// CHECK-LABEL: sil [ossa] @convert_checked_cast_addr_br_with_non_private_superclass : $@convention(thin) (@in D, @inout _Stdout) -> ()
// XHECK: checked_cast_addr_br
// XHECK: inject_enum_addr %{{.*}} : $*Optional<CustomStringConvertible>, #Optional.some!enumelt
// XHECK: dealloc_stack
// XHECK: return
// XHECK: inject_enum_addr %{{.*}} : $*Optional<CustomStringConvertible>, #Optional.none!enumelt
// XHECK: }
sil [ossa] @convert_checked_cast_addr_br_with_non_private_superclass : $@convention(thin) (@in D, @inout _Stdout) -> () {
bb0(%0 : $*D, %1 : $*_Stdout):
%2 = alloc_stack $CustomStringConvertible
%3 = alloc_stack $Optional<CustomStringConvertible>
%4 = init_enum_data_addr %3 : $*Optional<CustomStringConvertible>, #Optional.some!enumelt
%5 = alloc_stack $D
%6 = load [take] %0 : $*D
store %6 to [init] %5 : $*D
checked_cast_addr_br take_always D in %5 : $*D to CustomStringConvertible in %4 : $*CustomStringConvertible, bb1, bb22
bb1:
inject_enum_addr %3 : $*Optional<CustomStringConvertible>, #Optional.some!enumelt
br bb2
bb2:
dealloc_stack %5 : $*D
destroy_addr %3 : $*Optional<CustomStringConvertible>
dealloc_stack %3 : $*Optional<CustomStringConvertible>
%12 = integer_literal $Builtin.Int1, -1
%13 = integer_literal $Builtin.Int1, 0
%26 = tuple ()
dealloc_stack %2 : $*CustomStringConvertible
return %26 : $()
bb22:
inject_enum_addr %3 : $*Optional<CustomStringConvertible>, #Optional.none!enumelt
br bb2
}
|
