1 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -fsycl-is-device -verify %s 2 3 // Only function templates 4 [[clang::sycl_kernel]] int gv2 = 0; // expected-warning {{'sycl_kernel' attribute only applies to function templates}} 5 __attribute__((sycl_kernel)) int gv3 = 0; // expected-warning {{'sycl_kernel' attribute only applies to function templates}} 6 7 __attribute__((sycl_kernel)) void foo(); // expected-warning {{'sycl_kernel' attribute only applies to function templates}} 8 [[clang::sycl_kernel]] void foo1(); // expected-warning {{'sycl_kernel' attribute only applies to function templates}} 9 10 // Attribute takes no arguments 11 template <typename T, typename A> 12 __attribute__((sycl_kernel(1))) void foo(T P); // expected-error {{'sycl_kernel' attribute takes no arguments}} 13 template <typename T, typename A, int I> 14 [[clang::sycl_kernel(1)]] void foo1(T P);// expected-error {{'sycl_kernel' attribute takes no arguments}} 15 16 // At least two template parameters 17 template <typename T> 18 __attribute__((sycl_kernel)) void foo(T P); // expected-warning {{'sycl_kernel' attribute only applies to a function template with at least two template parameters}} 19 template <typename T> 20 [[clang::sycl_kernel]] void foo1(T P); // expected-warning {{'sycl_kernel' attribute only applies to a function template with at least two template parameters}} 21 22 // First two template parameters cannot be non-type template parameters 23 template <typename T, int A> 24 __attribute__((sycl_kernel)) void foo(T P); // expected-warning {{template parameter of a function template with the 'sycl_kernel' attribute cannot be a non-type template parameter}} 25 template <int A, typename T> 26 [[clang::sycl_kernel]] void foo1(T P); // expected-warning {{template parameter of a function template with the 'sycl_kernel' attribute cannot be a non-type template parameter}} 27 28 // Must return void 29 template <typename T, typename A> 30 __attribute__((sycl_kernel)) int foo(T P); // expected-warning {{function template with 'sycl_kernel' attribute must have a 'void' return type}} 31 template <typename T, typename A> 32 [[clang::sycl_kernel]] int foo1(T P); // expected-warning {{function template with 'sycl_kernel' attribute must have a 'void' return type}} 33 34 // Must take at least one argument 35 template <typename T, typename A> 36 __attribute__((sycl_kernel)) void foo(); // expected-warning {{function template with 'sycl_kernel' attribute must have a single parameter}} 37 template <typename T, typename A> 38 [[clang::sycl_kernel]] void foo1(T t, A a); // expected-warning {{function template with 'sycl_kernel' attribute must have a single parameter}} 39 40 // No diagnostics 41 template <typename T, typename A> 42 __attribute__((sycl_kernel)) void foo(T P); 43 template <typename T, typename A, int I> 44 [[clang::sycl_kernel]] void foo1(T P); 45