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
| //RUN: %clang_cc1 %s -emit-llvm -o - -triple=i686-unknown-linux | FileCheck --check-prefix=CHECKGEN %s
//RUN: %clang_cc1 %s -emit-llvm -o - -triple=thumbv7-apple-ios6.0 -target-abi apcs-gnu | FileCheck --check-prefix=CHECKARM %s
//RUN: %clang_cc1 %s -emit-llvm -o - -triple=thumbv7-apple-ios5.0 -target-abi apcs-gnu | FileCheck --check-prefix=CHECKIOS5 %s
//RUN: %clang_cc1 %s -emit-llvm -o - -triple=wasm32-unknown-unknown \
//RUN: | FileCheck --check-prefix=CHECKARM %s
//RUN: %clang_cc1 %s -emit-llvm -o - -triple=i386-pc-win32 -fno-rtti | FileCheck --check-prefix=CHECKMS %s
// FIXME: these tests crash on the bots when run with -triple=x86_64-pc-win32
// Make sure we attach the 'returned' attribute to the 'this' parameter of
// constructors and destructors which return this (and only these cases)
class A {
public:
A();
virtual ~A();
private:
int x_;
};
class B : public A {
public:
B(int *i);
virtual ~B();
private:
int *i_;
};
B::B(int *i) : i_(i) { }
B::~B() { }
// CHECKGEN-LABEL: define void @_ZN1BC2EPi(%class.B* %this, i32* %i)
// CHECKGEN-LABEL: define void @_ZN1BC1EPi(%class.B* %this, i32* %i)
// CHECKGEN-LABEL: define void @_ZN1BD2Ev(%class.B* %this)
// CHECKGEN-LABEL: define void @_ZN1BD1Ev(%class.B* %this)
// CHECKARM-LABEL: define %class.B* @_ZN1BC2EPi(%class.B* returned %this, i32* %i)
// CHECKARM-LABEL: define %class.B* @_ZN1BC1EPi(%class.B* returned %this, i32* %i)
// CHECKARM-LABEL: define %class.B* @_ZN1BD2Ev(%class.B* returned %this)
// CHECKARM-LABEL: define %class.B* @_ZN1BD1Ev(%class.B* returned %this)
// CHECKIOS5-LABEL: define %class.B* @_ZN1BC2EPi(%class.B* %this, i32* %i)
// CHECKIOS5-LABEL: define %class.B* @_ZN1BC1EPi(%class.B* %this, i32* %i)
// CHECKIOS5-LABEL: define %class.B* @_ZN1BD2Ev(%class.B* %this)
// CHECKIOS5-LABEL: define %class.B* @_ZN1BD1Ev(%class.B* %this)
// CHECKMS-LABEL: define dso_local x86_thiscallcc %class.B* @"??0B@@QAE@PAH@Z"(%class.B* returned %this, i32* %i)
// CHECKMS-LABEL: define dso_local x86_thiscallcc void @"??1B@@UAE@XZ"(%class.B* %this)
class C : public A, public B {
public:
C(int *i, char *c);
virtual ~C();
private:
char *c_;
};
C::C(int *i, char *c) : B(i), c_(c) { }
C::~C() { }
// CHECKGEN-LABEL: define void @_ZN1CC2EPiPc(%class.C* %this, i32* %i, i8* %c)
// CHECKGEN-LABEL: define void @_ZN1CC1EPiPc(%class.C* %this, i32* %i, i8* %c)
// CHECKGEN-LABEL: define void @_ZN1CD2Ev(%class.C* %this)
// CHECKGEN-LABEL: define void @_ZN1CD1Ev(%class.C* %this)
// CHECKGEN-LABEL: define void @_ZThn8_N1CD1Ev(%class.C* %this)
// CHECKGEN-LABEL: define void @_ZN1CD0Ev(%class.C* %this)
// CHECKGEN-LABEL: define void @_ZThn8_N1CD0Ev(%class.C* %this)
// CHECKARM-LABEL: define %class.C* @_ZN1CC2EPiPc(%class.C* returned %this, i32* %i, i8* %c)
// CHECKARM-LABEL: define %class.C* @_ZN1CC1EPiPc(%class.C* returned %this, i32* %i, i8* %c)
// CHECKARM-LABEL: define %class.C* @_ZN1CD2Ev(%class.C* returned %this)
// CHECKARM-LABEL: define %class.C* @_ZN1CD1Ev(%class.C* returned %this)
// CHECKARM-LABEL: define %class.C* @_ZThn8_N1CD1Ev(%class.C* %this)
// CHECKARM-LABEL: define void @_ZN1CD0Ev(%class.C* %this)
// CHECKARM-LABEL: define void @_ZThn8_N1CD0Ev(%class.C* %this)
// CHECKIOS5-LABEL: define %class.C* @_ZN1CC2EPiPc(%class.C* %this, i32* %i, i8* %c)
// CHECKIOS5-LABEL: define %class.C* @_ZN1CC1EPiPc(%class.C* %this, i32* %i, i8* %c)
// CHECKIOS5-LABEL: define %class.C* @_ZN1CD2Ev(%class.C* %this)
// CHECKIOS5-LABEL: define %class.C* @_ZN1CD1Ev(%class.C* %this)
// CHECKIOS5-LABEL: define %class.C* @_ZThn8_N1CD1Ev(%class.C* %this)
// CHECKIOS5-LABEL: define void @_ZN1CD0Ev(%class.C* %this)
// CHECKIOS5-LABEL: define void @_ZThn8_N1CD0Ev(%class.C* %this)
// CHECKMS-LABEL: define dso_local x86_thiscallcc %class.C* @"??0C@@QAE@PAHPAD@Z"(%class.C* returned %this, i32* %i, i8* %c)
// CHECKMS-LABEL: define dso_local x86_thiscallcc void @"??1C@@UAE@XZ"(%class.C* %this)
class D : public virtual A {
public:
D();
~D();
};
D::D() { }
D::~D() { }
// CHECKGEN-LABEL: define void @_ZN1DC2Ev(%class.D* %this, i8** %vtt)
// CHECKGEN-LABEL: define void @_ZN1DC1Ev(%class.D* %this)
// CHECKGEN-LABEL: define void @_ZN1DD2Ev(%class.D* %this, i8** %vtt)
// CHECKGEN-LABEL: define void @_ZN1DD1Ev(%class.D* %this)
// CHECKARM-LABEL: define %class.D* @_ZN1DC2Ev(%class.D* returned %this, i8** %vtt)
// CHECKARM-LABEL: define %class.D* @_ZN1DC1Ev(%class.D* returned %this)
// CHECKARM-LABEL: define %class.D* @_ZN1DD2Ev(%class.D* returned %this, i8** %vtt)
// CHECKARM-LABEL: define %class.D* @_ZN1DD1Ev(%class.D* returned %this)
// CHECKIOS5-LABEL: define %class.D* @_ZN1DC2Ev(%class.D* %this, i8** %vtt)
// CHECKIOS5-LABEL: define %class.D* @_ZN1DC1Ev(%class.D* %this)
// CHECKIOS5-LABEL: define %class.D* @_ZN1DD2Ev(%class.D* %this, i8** %vtt)
// CHECKIOS5-LABEL: define %class.D* @_ZN1DD1Ev(%class.D* %this)
// CHECKMS-LABEL: define dso_local x86_thiscallcc %class.D* @"??0D@@QAE@XZ"(%class.D* returned %this, i32 %is_most_derived)
// CHECKMS-LABEL: define dso_local x86_thiscallcc void @"??1D@@UAE@XZ"(%class.D* %this)
class E {
public:
E();
virtual ~E();
};
E* gete();
void test_destructor() {
const E& e1 = E();
E* e2 = gete();
e2->~E();
}
// CHECKARM-LABEL: define void @_Z15test_destructorv()
// Verify that virtual calls to destructors are not marked with a 'returned'
// this parameter at the call site...
// CHECKARM: [[VFN:%.*]] = getelementptr inbounds %class.E* (%class.E*)*, %class.E* (%class.E*)**
// CHECKARM: [[THUNK:%.*]] = load %class.E* (%class.E*)*, %class.E* (%class.E*)** [[VFN]]
// CHECKARM: call %class.E* [[THUNK]](%class.E* %
// ...but static calls create declarations with 'returned' this
// CHECKARM: {{%.*}} = call %class.E* @_ZN1ED1Ev(%class.E* %
// CHECKARM: declare %class.E* @_ZN1ED1Ev(%class.E* returned)
|