File: union-dtor.cpp

package info (click to toggle)
llvm-toolchain-6.0 1%3A6.0.1-10
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 598,080 kB
  • sloc: cpp: 3,046,253; ansic: 595,057; asm: 271,965; python: 128,926; objc: 106,554; sh: 21,906; lisp: 10,191; pascal: 6,094; ml: 5,544; perl: 5,265; makefile: 2,227; cs: 2,027; xml: 686; php: 212; csh: 117
file content (42 lines) | stat: -rw-r--r-- 706 bytes parent folder | download | duplicates (31)
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 -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