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
|
// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - -fcxx-exceptions -fexceptions | FileCheck %s
// Test IR generation for partial destruction of aggregates.
void opaque();
// Initializer lists.
namespace test0 {
struct A { A(int); A(); ~A(); void *v; };
void test() {
A as[10] = { 5, 7 };
opaque();
}
// CHECK: define void @_ZN5test04testEv()
// CHECK: [[AS:%.*]] = alloca [10 x [[A:%.*]]], align
// CHECK-NEXT: [[ENDVAR:%.*]] = alloca [[A]]*
// CHECK-NEXT: [[EXN:%.*]] = alloca i8*
// CHECK-NEXT: [[SEL:%.*]] = alloca i32
// Initialize.
// CHECK-NEXT: [[E_BEGIN:%.*]] = getelementptr inbounds [10 x [[A]]]* [[AS]], i64 0, i64 0
// CHECK-NEXT: store [[A]]* [[E_BEGIN]], [[A]]** [[ENDVAR]]
// CHECK-NEXT: invoke void @_ZN5test01AC1Ei([[A]]* [[E_BEGIN]], i32 5)
// CHECK: [[E1:%.*]] = getelementptr inbounds [[A]]* [[E_BEGIN]], i64 1
// CHECK-NEXT: store [[A]]* [[E1]], [[A]]** [[ENDVAR]]
// CHECK-NEXT: invoke void @_ZN5test01AC1Ei([[A]]* [[E1]], i32 7)
// CHECK: [[E2:%.*]] = getelementptr inbounds [[A]]* [[E1]], i64 1
// CHECK-NEXT: store [[A]]* [[E2]], [[A]]** [[ENDVAR]]
// CHECK-NEXT: [[E_END:%.*]] = getelementptr inbounds [[A]]* [[E_BEGIN]], i64 10
// CHECK-NEXT: br label
// CHECK: [[E_CUR:%.*]] = phi [[A]]* [ [[E2]], {{%.*}} ], [ [[E_NEXT:%.*]], {{%.*}} ]
// CHECK-NEXT: invoke void @_ZN5test01AC1Ev([[A]]* [[E_CUR]])
// CHECK: [[E_NEXT]] = getelementptr inbounds [[A]]* [[E_CUR]], i64 1
// CHECK-NEXT: store [[A]]* [[E_NEXT]], [[A]]** [[ENDVAR]]
// CHECK-NEXT: [[T0:%.*]] = icmp eq [[A]]* [[E_NEXT]], [[E_END]]
// CHECK-NEXT: br i1 [[T0]],
// Run.
// CHECK: invoke void @_Z6opaquev()
// Normal destroy.
// CHECK: [[ED_BEGIN:%.*]] = getelementptr inbounds [10 x [[A]]]* [[AS]], i32 0, i32 0
// CHECK-NEXT: [[ED_END:%.*]] = getelementptr inbounds [[A]]* [[ED_BEGIN]], i64 10
// CHECK-NEXT: br label
// CHECK: [[ED_AFTER:%.*]] = phi [[A]]* [ [[ED_END]], {{%.*}} ], [ [[ED_CUR:%.*]], {{%.*}} ]
// CHECK-NEXT: [[ED_CUR]] = getelementptr inbounds [[A]]* [[ED_AFTER]], i64 -1
// CHECK-NEXT: invoke void @_ZN5test01AD1Ev([[A]]* [[ED_CUR]])
// CHECK: [[T0:%.*]] = icmp eq [[A]]* [[ED_CUR]], [[ED_BEGIN]]
// CHECK-NEXT: br i1 [[T0]],
// CHECK: ret void
// Partial destroy for initialization.
// CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
// CHECK-NEXT: cleanup
// CHECK: [[PARTIAL_END:%.*]] = load [[A]]** [[ENDVAR]]
// CHECK-NEXT: [[T0:%.*]] = icmp eq [[A]]* [[E_BEGIN]], [[PARTIAL_END]]
// CHECK-NEXT: br i1 [[T0]],
// CHECK: [[E_AFTER:%.*]] = phi [[A]]* [ [[PARTIAL_END]], {{%.*}} ], [ [[E_CUR:%.*]], {{%.*}} ]
// CHECK-NEXT: [[E_CUR]] = getelementptr inbounds [[A]]* [[E_AFTER]], i64 -1
// CHECK-NEXT: invoke void @_ZN5test01AD1Ev([[A]]* [[E_CUR]])
// CHECK: [[T0:%.*]] = icmp eq [[A]]* [[E_CUR]], [[E_BEGIN]]
// CHECK-NEXT: br i1 [[T0]],
// Primary EH destructor.
// CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
// CHECK-NEXT: cleanup
// CHECK: [[E0:%.*]] = getelementptr inbounds [10 x [[A]]]* [[AS]], i32 0, i32 0
// CHECK-NEXT: [[E_END:%.*]] = getelementptr inbounds [[A]]* [[E0]], i64 10
// CHECK-NEXT: br label
// Partial destructor for primary normal destructor.
// FIXME: There's some really bad block ordering here which causes
// the partial destroy for the primary normal destructor to fall
// within the primary EH destructor.
// CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
// CHECK-NEXT: cleanup
// CHECK: [[T0:%.*]] = icmp eq [[A]]* [[ED_BEGIN]], [[ED_CUR]]
// CHECK-NEXT: br i1 [[T0]]
// CHECK: [[EDD_AFTER:%.*]] = phi [[A]]* [ [[ED_CUR]], {{%.*}} ], [ [[EDD_CUR:%.*]], {{%.*}} ]
// CHECK-NEXT: [[EDD_CUR]] = getelementptr inbounds [[A]]* [[EDD_AFTER]], i64 -1
// CHECK-NEXT: invoke void @_ZN5test01AD1Ev([[A]]* [[EDD_CUR]])
// CHECK: [[T0:%.*]] = icmp eq [[A]]* [[EDD_CUR]], [[ED_BEGIN]]
// CHECK-NEXT: br i1 [[T0]]
// Back to the primary EH destructor.
// CHECK: [[E_AFTER:%.*]] = phi [[A]]* [ [[E_END]], {{%.*}} ], [ [[E_CUR:%.*]], {{%.*}} ]
// CHECK-NEXT: [[E_CUR]] = getelementptr inbounds [[A]]* [[E_AFTER]], i64 -1
// CHECK-NEXT: invoke void @_ZN5test01AD1Ev([[A]]* [[E_CUR]])
// CHECK: [[T0:%.*]] = icmp eq [[A]]* [[E_CUR]], [[E0]]
// CHECK-NEXT: br i1 [[T0]],
}
namespace test1 {
struct A { A(); A(int); ~A(); };
struct B { A x, y, z; int w; };
void test() {
B v = { 5, 6, 7, 8 };
}
// CHECK: define void @_ZN5test14testEv()
// CHECK: [[V:%.*]] = alloca [[B:%.*]], align 4
// CHECK-NEXT: alloca i8*
// CHECK-NEXT: alloca i32
// CHECK-NEXT: [[X:%.*]] = getelementptr inbounds [[B]]* [[V]], i32 0, i32 0
// CHECK-NEXT: call void @_ZN5test11AC1Ei([[A:%.*]]* [[X]], i32 5)
// CHECK-NEXT: [[Y:%.*]] = getelementptr inbounds [[B]]* [[V]], i32 0, i32 1
// CHECK-NEXT: invoke void @_ZN5test11AC1Ei([[A]]* [[Y]], i32 6)
// CHECK: [[Z:%.*]] = getelementptr inbounds [[B]]* [[V]], i32 0, i32 2
// CHECK-NEXT: invoke void @_ZN5test11AC1Ei([[A]]* [[Z]], i32 7)
// CHECK: [[W:%.*]] = getelementptr inbounds [[B]]* [[V]], i32 0, i32 3
// CHECK-NEXT: store i32 8, i32* [[W]], align 4
// CHECK-NEXT: call void @_ZN5test11BD1Ev([[B]]* [[V]])
// CHECK-NEXT: ret void
// FIXME: again, the block ordering is pretty bad here
// CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
// CHECK-NEXT: cleanup
// CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
// CHECK-NEXT: cleanup
// CHECK: invoke void @_ZN5test11AD1Ev([[A]]* [[Y]])
// CHECK: invoke void @_ZN5test11AD1Ev([[A]]* [[X]])
}
namespace test2 {
struct A { A(); ~A(); };
void test() {
A v[4][7];
// CHECK: define void @_ZN5test24testEv()
// CHECK: [[V:%.*]] = alloca [4 x [7 x [[A:%.*]]]], align 1
// CHECK-NEXT: alloca i8*
// CHECK-NEXT: alloca i32
// Main initialization loop.
// CHECK-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [4 x [7 x [[A]]]]* [[V]], i32 0, i32 0, i32 0
// CHECK-NEXT: [[END:%.*]] = getelementptr inbounds [[A]]* [[BEGIN]], i64 28
// CHECK-NEXT: br label
// CHECK: [[CUR:%.*]] = phi [[A]]* [ [[BEGIN]], {{%.*}} ], [ [[NEXT:%.*]], {{%.*}} ]
// CHECK-NEXT: invoke void @_ZN5test21AC1Ev([[A]]* [[CUR]])
// CHECK: [[NEXT:%.*]] = getelementptr inbounds [[A]]* [[CUR]], i64 1
// CHECK-NEXT: [[DONE:%.*]] = icmp eq [[A]]* [[NEXT]], [[END]]
// CHECK-NEXT: br i1 [[DONE]],
// Partial destruction landing pad.
// CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
// CHECK-NEXT: cleanup
// CHECK: [[EMPTY:%.*]] = icmp eq [[A]]* [[BEGIN]], [[CUR]]
// CHECK-NEXT: br i1 [[EMPTY]],
// CHECK: [[PAST:%.*]] = phi [[A]]* [ [[CUR]], {{%.*}} ], [ [[DEL:%.*]], {{%.*}} ]
// CHECK-NEXT: [[DEL]] = getelementptr inbounds [[A]]* [[PAST]], i64 -1
// CHECK-NEXT: invoke void @_ZN5test21AD1Ev([[A]]* [[DEL]])
// CHECK: [[T0:%.*]] = icmp eq [[A]]* [[DEL]], [[BEGIN]]
// CHECK-NEXT: br i1 [[T0]],
}
}
// PR10351
namespace test3 {
struct A { A(); ~A(); void *p; };
struct B {
B() {}
A a;
};
B *test() {
return new B[10];
// invoke void @_ZN5test31BD1Ev(
}
}
|
