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1// RUN: %clang_cc1 %s -triple spir-unknown-unknown -pedantic -verify -fsyntax-only2 3__global const int& f(__global float &ref) {4 return ref; // expected-error{{reference of type 'const __global int &' cannot bind to a temporary object because of address space mismatch}}5}6 7int bar(const __global unsigned int &i); // expected-note{{passing argument to parameter 'i' here}}8//FIXME: With the overload below the call should be resolved9// successfully. However, current overload resolution logic10// can't detect this case and therefore fails.11int bar(const unsigned int &i);12 13typedef short short2 __attribute__((ext_vector_type(2)));14class C {15public:16 void gen(const short2 &);17 void glob(__global const short2 &); //expected-note{{passing argument to parameter here}}18 void nested_list(const short2 (&)[2]);19};20 21void foo() {22 bar(1); // expected-error{{binding reference of type 'const __global unsigned int' to value of type 'int' changes address space}}23 C c;24 c.gen({1, 2});25 c.glob({1, 2}); //expected-error{{binding reference of type 'const __global short2' (vector of 2 'short' values) to value of type 'void' changes address space}}26 c.nested_list({{1, 2}, {3, 4}});27}28 29// Test addr space conversion with nested pointers30 31extern void nestptr(int *&); // expected-note {{candidate function not viable: no known conversion from '__global int *__private' to '__generic int *__generic &__private' for 1st argument}}32extern void nestptr_const(int * const &); // expected-note {{candidate function not viable: cannot pass pointer to address space '__constant' as a pointer to address space '__generic' in 1st argument}}33int test_nestptr(__global int *glob, __constant int *cons, int* gen) {34 nestptr(glob); // expected-error{{no matching function for call to 'nestptr'}}35 // Addr space conversion first occurs on a temporary.36 nestptr_const(glob);37 // No legal conversion between disjoint addr spaces.38 nestptr_const(cons); // expected-error{{no matching function for call to 'nestptr_const'}}39 return *(*cons ? glob : gen);40}41