llvm-project/clang/test/SemaCUDA/method-target.cu

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// RUN: %clang_cc1 -fsyntax-only -verify %s
#include "Inputs/cuda.h"
//------------------------------------------------------------------------------
// Test 1: host method called from device function
struct S1 {
void method() {}
};
__device__ void foo1(S1& s) {
s.method(); // expected-error {{reference to __host__ function 'method' in __device__ function}}
}
//------------------------------------------------------------------------------
// Test 2: host method called from device function, for overloaded method
struct S2 {
void method(int) {} // expected-note {{candidate function not viable: call to __host__ function from __device__ function}}
void method(float) {} // expected-note {{candidate function not viable: call to __host__ function from __device__ function}}
};
__device__ void foo2(S2& s, int i, float f) {
s.method(f); // expected-error {{no matching member function}}
}
//------------------------------------------------------------------------------
// Test 3: device method called from host function
struct S3 {
__device__ void method() {}
};
void foo3(S3& s) {
s.method(); // expected-error {{reference to __device__ function 'method' in __host__ function}}
}
//------------------------------------------------------------------------------
// Test 4: device method called from host&device function
struct S4 {
__device__ void method() {}
};
__host__ __device__ void foo4(S4& s) {
s.method();
}
//------------------------------------------------------------------------------
// Test 5: overloaded operators
struct S5 {
S5() {}
S5& operator=(const S5&) {return *this;} // expected-note {{candidate function not viable}}
};
__device__ void foo5(S5& s, S5& t) {
s = t; // expected-error {{no viable overloaded '='}}
}
//------------------------------------------------------------------------------
// Test 6: call method through pointer
struct S6 {
void method() {}
};
__device__ void foo6(S6* s) {
s->method(); // expected-error {{reference to __host__ function 'method' in __device__ function}}
}