File: union-dtor.cpp

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (42 lines) | stat: -rw-r--r-- 703 bytes parent folder | download | duplicates (7) 
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
 
// RUN: %clang_cc1 -std=c++11 %s -o - -emit-llvm | FileCheck %s

// PR10304: destructors should not call destructors for variant members.

template<bool b = false>
struct Foo {
  Foo() { static_assert(b, "Foo::Foo used"); }
  ~Foo() { static_assert(b, "Foo::~Foo used"); }
};

struct Bar {
  Bar();
  ~Bar();
};

union FooBar {
  FooBar() {}
  ~FooBar() {}
  Foo<> foo;
  Bar bar;
};

struct Variant {
  Variant() {}
  ~Variant() {}
  union {
    Foo<> foo;
    Bar bar;
  };
};

FooBar foobar;
Variant variant;

// The ctor and dtor of Foo<> and Bar should not be mentioned in the resulting
// code.
//
// CHECK-NOT: 3FooILb1EEC1
// CHECK-NOT: 3BarC1
//
// CHECK-NOT: 3FooILb1EED1
// CHECK-NOT: 3BarD1