llvm-project/clang/test/SemaOpenCLCXX/address-space-templates.clcpp

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//RUN: %clang_cc1 %s -pedantic -verify -ast-dump | FileCheck %s
template <typename T>
struct S {
T a; // expected-error{{field may not be qualified with an address space}}
T f1(); // we ignore address space on a return types.
void f2(T); // expected-error{{parameter may not be qualified with an address space}}
};
template <typename T>
T foo1(__global T *i) { // expected-note{{candidate template ignored: substitution failure [with T = __local int]: conflicting address space qualifiers are provided between types '__global T' and '__local int'}}
return *i;
}
template <typename T>
T *foo2(T *i) {
return i;
}
template <typename T>
void foo3() {
__private T ii; // expected-error{{conflicting address space qualifiers are provided between types '__private T' and '__global int'}}
}
template <class _Tp> struct remove_reference { typedef _Tp type; };
template <class _Tp> struct remove_reference<_Tp &> { typedef _Tp type; };
template <class _Tp> struct as_pointer {
typedef typename remove_reference<_Tp>::type* type;
};
// Check address space deduction in template parameter deduction.
struct rep {
// When there is no address space on a reference use __generic.
// CHECK: |-CXXConstructorDecl {{.*}} rep 'void (const __generic rep &__private){{.*}} __generic'
template<class U, class = typename as_pointer<U>::type>
rep(U&& v) {}
};
struct rep_outer : private rep {
rep_outer()
: rep(0) {}
};
template<class T, class F>
void foo4(T t, F f){
f(t);
}
void bar() {
S<const __global int> sintgl; // expected-note{{in instantiation of template class 'S<const __global int>' requested here}}
foo1<__local int>(1); // expected-error{{no matching function for call to 'foo1'}}
foo2<__global int>(0);
foo3<__global int>(); // expected-note{{in instantiation of function template specialization 'foo3<__global int>' requested here}}
rep_outer r;
int i;
// Preserve the address space of the type in forwarding reference.
// CHECK: CXXMethodDecl {{.*}} operator() 'void (__private int &__private){{.*}} const __generic'
foo4(i, [](auto&& x){;});
}