clang/test/Parser/opencl-cxx-virtual.cl

   1 // RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -fsyntax-only -verify
   2 // RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -fsyntax-only -verify -DFUNCPTREXT
   3
   4 #ifdef FUNCPTREXT
   5 #pragma OPENCL EXTENSION __cl_clang_function_pointers : enable
   6 //expected-no-diagnostics
   7 #endif
   8
   9 // Test that virtual functions and abstract classes are rejected
  10 // unless specific clang extension is used.
  11 class virtual_functions {
  12   virtual void bad1() {}
  13 #ifndef FUNCPTREXT
  14   //expected-error@-2 {{virtual functions are not supported in C++ for OpenCL}}
  15 #endif
  16
  17   virtual void bad2() = 0;
  18 #ifndef FUNCPTREXT
  19   //expected-error@-2 {{virtual functions are not supported in C++ for OpenCL}}
  20   //expected-error@-3 {{'bad2' is not virtual and cannot be declared pure}}
  21 #endif
  22 };
  23
  24 template <typename T>
  25 class X {
  26   virtual T f();
  27 #ifndef FUNCPTREXT
  28   //expected-error@-2 {{virtual functions are not supported in C++ for OpenCL}}
  29 #endif
  30 };
  31
  32 // Test that virtual base classes are allowed.
  33 struct A {
  34   int a;
  35   void foo();
  36 };
  37
  38 struct B : virtual A {
  39   int b;
  40 };
  41
  42 struct C : public virtual A {
  43   int c;
  44 };
  45
  46 struct D : B, C {
  47   int d;
  48 };
  49
  50 kernel void virtual_inheritance() {
  51   D d;
  52
  53   d.foo();
  54   d.a = 11;
  55   d.b = 22;
  56   d.c = 33;
  57   d.d = 44;
  58 }