File: vtable-key-function.cpp

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (33 lines) | stat: -rw-r--r-- 772 bytes parent folder | download | duplicates (38)
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
// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
// PR5697
namespace PR5697 {
struct A {
  virtual void f() { } 
  A();
  A(int);
};

// A does not have a key function, so the first constructor we emit should
// cause the vtable to be defined (without assertions.)
// CHECK: @_ZTVN6PR56971AE = linkonce_odr unnamed_addr constant
A::A() { }
A::A(int) { }
}

// Make sure that we don't assert when building the vtable for a class
// template specialization or explicit instantiation with a key
// function.
template<typename T>
struct Base {
  virtual ~Base();
};

template<typename T>
struct Derived : public Base<T> { };

template<>
struct Derived<char> : public Base<char> {
  virtual void anchor();
};

void Derived<char>::anchor() { }