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
|
// RUN: %target-swift-frontend -primary-file %s -emit-ir -Onone -enable-copy-propagation | %FileCheck %s -DINT=i%target-ptrsize
//
// This test is currently disabled because mandatory copy propagation
// is not part of the pipeline. It may be re-added to the pipeline,
// but it isn't clear if we'll still need to emit poison references by
// that time.
//
// REQUIRES: mandatory_copy_propagation
// Test debug_value [poison] emission
class K {
init() {}
}
protocol P : AnyObject {}
class D : P {}
protocol Q {}
class E : Q {}
func useInt(_ i: Int) {}
func useAny(_: Any) {}
func useOptionalAny(_: Any?) {}
func useNone() {}
func getK() -> K { return K() }
func getOptionalK() -> K? { return K() }
private func useK(_: K) -> Int {
return 2
}
private func useOptionalK(_: K?) -> Int {
return 2
}
// Hoist and poison 'b' above useInt(y).
//
// CHECK-LABEL: define {{.*}}swiftcc void @"$s12debug_poison13testPoisonRefyyF"
// CHECK: %b.debug = alloca %T12debug_poison1KC*
// CHECK: %y.debug = alloca [[INT]]
// CHECK: [[REF:%.*]] = call {{.*}} %T12debug_poison1KC* @"$s12debug_poison4getKAA1KCyF"()
// CHECK: store %T12debug_poison1KC* [[REF]], %T12debug_poison1KC** %b.debug
// CHECK: [[Y:%.*]] = call {{.*}} [[INT]] @"$s12debug_poison4use{{.*}}"(%T12debug_poison1KC* [[REF]])
// CHECK: call void {{.*}} @swift_release {{.*}} [[REF]]
// CHECK: store %T12debug_poison1KC* inttoptr ([[INT]] 1088 to %T12debug_poison1KC*), %T12debug_poison1KC** %b.debug
// CHECK: store [[INT]] [[Y]], [[INT]]* %y.debug
// CHECK: call {{.*}} void @"$s12debug_poison6useIntyySiF"([[INT]] [[Y]])
public func testPoisonRef() {
let b = getK()
let y = useK(b)
useInt(y)
}
// Hoist and poison 'b' above useInt(y).
//
// CHECK-LABEL: define {{.*}}swiftcc void @"$s12debug_poison21testPoisonOptionalRefyyF"
// CHECK: %b.debug = alloca [[INT]]
// CHECK: %y.debug = alloca [[INT]]
// CHECK: [[REF:%.*]] = call {{.*}} [[INT]] @"$s12debug_poison12getOptionalKAA1KCSgyF"()
// CHECK: store [[INT]] [[REF]], [[INT]]* %b.debug
// CHECK: [[Y:%.*]] = call {{.*}} [[INT]] @"$s12debug_poison12useOptionalK{{.*}}"([[INT]] [[REF]])
// CHECK: call void @swift_release
// CHECK: [[NIL:%.*]] = icmp eq [[INT]] [[REF]], 0
// CHECK: [[POISON:%.*]] = select i1 [[NIL]], [[INT]] [[REF]], [[INT]] 1088
// CHECK: store [[INT]] [[POISON]], [[INT]]* %b.debug
// CHECK: store [[INT]] [[Y]], [[INT]]* %y.debug
// CHECK: call {{.*}} void @"$s12debug_poison6useIntyySiF"([[INT]] [[Y]])
public func testPoisonOptionalRef() {
let b: K? = getOptionalK()
let y = useOptionalK(b)
useInt(y)
}
// Hoist and poison 'b' above useNone.
//
// CHECK-LABEL: define {{.*}}swiftcc void @"$s12debug_poison21testPoisonExistentialyyF"
// CHECK: %b.debug = alloca %T12debug_poison1PP
// CHECK: [[INIT:%.*]] = call {{.*}} %T12debug_poison1DC* @"$s12debug_poison1DCACycfC"(
// CHECK: [[REF:%.*]] = bitcast %T12debug_poison1DC* [[INIT]] to %[[REFTY:.*]]*
// CHECK: [[GEP0:%.*]] = getelementptr inbounds %T12debug_poison1PP, %T12debug_poison1PP* %b.debug, i32 0, i32 0
// CHECK: store %[[REFTY]]* [[REF]], %[[REFTY]]** [[GEP0]]
// CHECK: store i8** getelementptr inbounds ([1 x i8*], [1 x i8*]* @"$s12debug_poison1DCAA1PAAWP", i32 0, i32 0), i8***
// CHECK: call %[[REFTY]]* @swift_{{unknownObjectRetain|retain}}(%[[REFTY]]* returned [[REF]])
// CHECK: store %[[REFTY]]* [[REF]], %[[REFTY]]**
// CHECK: call {{.*}} void @"$s12debug_poison6useAnyyyypF"(
// CHECK: call void @swift_{{unknownObjectRelease|release}}(%[[REFTY]]* [[REF]])
// CHECK: [[GEP1:%.*]] = getelementptr inbounds %T12debug_poison1PP, %T12debug_poison1PP* %b.debug, i32 0, i32 0
// CHECK: store %[[REFTY]]* inttoptr ([[INT]] 1088 to %[[REFTY]]*), %[[REFTY]]** [[GEP1]]
// CHECK: call {{.*}} void @"$s12debug_poison7useNoneyyF"()
public func testPoisonExistential() {
let b: P = D()
useAny(b)
useNone()
}
// Hoist and poison 'b' above useNone.
//
// CHECK-LABEL: define {{.*}}swiftcc void @"$s12debug_poison19testPoisonCompositeyyF"()
// CHECK: %b.debug = alloca %T12debug_poison1Q_Xl
// CHECK: [[INIT:%.*]] = call {{.*}} %T12debug_poison1EC* @"$s12debug_poison1ECACycfC"(
// CHECK: [[REF:%.*]] = bitcast %T12debug_poison1EC* [[INIT]] to %[[REFTY]]*
// CHECK: [[GEP0:%.*]] = getelementptr inbounds %T12debug_poison1Q_Xl, %T12debug_poison1Q_Xl* %b.debug, i32 0, i32 0
// CHECK: store %[[REFTY]]* [[REF]], %[[REFTY]]** [[GEP0]]
// CHECK: store i8** getelementptr inbounds ([1 x i8*], [1 x i8*]* @"$s12debug_poison1ECAA1QAAWP", i32 0, i32 0), i8***
// CHECK: call %[[REFTY]]* @swift_{{unknownObjectRetain|retain}}(%[[REFTY]]* returned [[REF]])
// CHECK: store %[[REFTY]]* [[REF]], %[[REFTY]]**
// CHECK: call {{.*}} void @"$s12debug_poison6useAnyyyypF"(
// CHECK: call void @swift_{{unknownObjectRelease|release}}(%[[REFTY]]* [[REF]])
// CHECK: [[GEP1:%.*]] = getelementptr inbounds %T12debug_poison1Q_Xl, %T12debug_poison1Q_Xl* %b.debug, i32 0, i32 0
// CHECK: store %[[REFTY]]* inttoptr ([[INT]] 1088 to %[[REFTY]]*), %[[REFTY]]** [[GEP1]]
// CHECK: call {{.*}} void @"$s12debug_poison7useNoneyyF"()
public func testPoisonComposite() {
let b: Q & AnyObject = E()
useAny(b)
useNone()
}
// CopyPropagation hoists 'b' above useNone, but IRGen currently bails on emitting poison.
//
// CHECK-LABEL: define {{.*}}swiftcc void @"$s12debug_poison27testPoisonOptionalCompositeyyF"()
// CHECK: %b.debug = alloca %T12debug_poison1Q_XlSg
// CHECK: [[INIT:%.*]] = call {{.*}} %T12debug_poison1EC* @"$s12debug_poison1ECACycfC"(
// CHECK: [[REF0:%.*]] = bitcast %T12debug_poison1EC* [[INIT]] to %[[REFTY]]*
// CHECK: [[REFINT0:%.*]] = ptrtoint %[[REFTY]]* [[REF0]] to [[INT]]
// CHECK: [[SHADOW0:%.*]] = bitcast %T12debug_poison1Q_XlSg* %b.debug to { [[INT]], [[INT]] }*
// CHECK: [[GEP0:%.*]] = getelementptr inbounds {{.*}} [[SHADOW0]], i32 0, i32 0
// CHECK: store [[INT]] [[REFINT0]], [[INT]]* [[GEP0]]
// CHECK: store [[INT]] ptrtoint ([1 x i8*]* @"$s12debug_poison1ECAA1QAAWP" to [[INT]]),
// CHECK: [[REF1:%.*]] = inttoptr [[INT]] [[REFINT0]] to %[[REFTY]]*
// CHECK: call %[[REFTY]]* @swift_{{unknownObjectRetain|retain}}(%[[REFTY]]* returned [[REF1]])
// CHECK: icmp eq [[INT]] [[REFINT0]], 0
// CHECK: [[PHI:%.*]] = phi %[[REFTY]]*
// CHECK: call void @swift_{{unknownObjectRelease|release}}(%[[REFTY]]*
// CHECK: store %[[REFTY]]* [[PHI]], %[[REFTY]]**
// CHECK: call {{.*}} void @"$s12debug_poison14useOptionalAnyyyypSgF"(
//
// Currently no poison store here.
// CHECK-NOT: store
// CHECK: call {{.*}} void @"$s12debug_poison7useNoneyyF"()
public func testPoisonOptionalComposite() {
let b: Optional<Q & AnyObject> = E()
useOptionalAny(b)
useNone()
}
|
