4fde2b6a0c
The new clang internal extension '__cl_clang_function_pointers' allows use of function pointers and other features that have the same functionality: - Use of member function pointers; - Unrestricted use of references to functions; - Virtual member functions. This not a vendor extension and therefore it doesn't require any special target support. Exposing this functionality fully will require vendor or Khronos extension. Tags: #clang Differential Revision: https://reviews.llvm.org/D94021
59 lines
1.2 KiB
Common Lisp
59 lines
1.2 KiB
Common Lisp
// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -fsyntax-only -verify
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// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -fsyntax-only -verify -DFUNCPTREXT
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#ifdef FUNCPTREXT
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#pragma OPENCL EXTENSION __cl_clang_function_pointers : enable
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//expected-no-diagnostics
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#endif
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// Test that virtual functions and abstract classes are rejected
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// unless specific clang extension is used.
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class virtual_functions {
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virtual void bad1() {}
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#ifndef FUNCPTREXT
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//expected-error@-2 {{virtual functions are not supported in C++ for OpenCL}}
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#endif
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virtual void bad2() = 0;
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#ifndef FUNCPTREXT
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//expected-error@-2 {{virtual functions are not supported in C++ for OpenCL}}
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//expected-error@-3 {{'bad2' is not virtual and cannot be declared pure}}
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#endif
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};
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template <typename T>
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class X {
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virtual T f();
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#ifndef FUNCPTREXT
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//expected-error@-2 {{virtual functions are not supported in C++ for OpenCL}}
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#endif
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};
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// Test that virtual base classes are allowed.
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struct A {
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int a;
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void foo();
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};
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struct B : virtual A {
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int b;
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};
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struct C : public virtual A {
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int c;
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};
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struct D : B, C {
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int d;
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};
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kernel void virtual_inheritance() {
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D d;
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d.foo();
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d.a = 11;
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d.b = 22;
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d.c = 33;
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d.d = 44;
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}
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