virtual-function-calls.cpp
1.02 KB
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
// RUN: %clang_cc1 %s -triple %itanium_abi_triple -std=c++11 -emit-llvm -o - | FileCheck %s
// RUN: %clang_cc1 %s -triple %itanium_abi_triple -std=c++11 -emit-llvm -o - -fstrict-vtable-pointers -O1 | FileCheck --check-prefix=CHECK-INVARIANT %s
// PR5021
namespace PR5021 {
struct A {
virtual void f(char);
};
void f(A *a) {
// CHECK: call {{.*}}void %
a->f('c');
}
struct B : virtual A {
virtual void f();
};
void f(B * b) {
b->f();
}
}
namespace Test1 {
struct A {
virtual ~A();
};
struct B : A {
virtual ~B();
virtual void f();
};
void f(B *b) {
b->f();
}
}
namespace VirtualNoreturn {
struct A {
[[noreturn]] virtual void f();
};
// CHECK-LABEL: @_ZN15VirtualNoreturn1f
// CHECK-INVARIANT-LABEL: define {{(dso_local )?}}void @_ZN15VirtualNoreturn1f
void f(A *p) {
p->f();
// CHECK: call {{.*}}void %{{[^#]*$}}
// CHECK-NOT: unreachable
// CHECK-INVARIANT: load {{.*}} !invariant.load ![[EMPTY_NODE:[0-9]+]]
}
}
// CHECK-INVARIANT: ![[EMPTY_NODE]] = !{}