File: microsoft-abi-vtables-ambiguous.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 (44 lines) | stat: -rw-r--r-- 1,170 bytes parent folder | download | duplicates (34)
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
// RUN: %clang_cc1 %s -emit-llvm-only -triple=i386-pc-win32 -verify -DTEST1
// RUN: %clang_cc1 %s -emit-llvm-only -triple=i386-pc-win32 -verify -DTEST2

#ifdef TEST1
struct A {
  virtual A *foo();  // in vftable slot #0.
  virtual A *bar();  // in vftable slot #1.
};

struct B : virtual A {
  // appended to the A subobject's vftable in slot #2.
  virtual B *foo(); // expected-note{{covariant thunk required by 'foo'}}
};

struct C : virtual A {
  // appended to the A subobject's vftable in slot #2.
  virtual C *bar(); // expected-note{{covariant thunk required by 'bar'}}
};

struct D : B, C { D(); }; // expected-error{{ambiguous vftable component}}
D::D() {}
#endif

#ifdef TEST2
struct A {
  virtual A *foo(); // in vftable slot #0
};

struct B : virtual A {
  // appended to the A subobject's vftable in slot #1.
  virtual B *foo(); // expected-note{{covariant thunk required by 'foo'}}
};

struct C : virtual A {
  // appended to the A subobject's vftable in slot #1.
  virtual C *foo(); // expected-note{{covariant thunk required by 'foo'}}
};

struct D : B, C { // expected-error{{ambiguous vftable component}}
  virtual D *foo();
  D();
};
D::D() {}
#endif