1 // Tests handling of CUDA attributes that are bad either because they're
2 // applied to the wrong sort of thing, or because they're given in illegal
5 // You should be able to run this file through nvcc for compatibility testing.
7 // RUN: %clang_cc1 -fsyntax-only -Wcuda-compat -verify -DEXPECT_INLINE_WARNING %s
8 // RUN: %clang_cc1 -fcuda-is-device -fsyntax-only -Wcuda-compat -verify %s
10 #include "Inputs/cuda.h"
12 // Try applying attributes to functions and variables. Some should generate
13 // warnings; others not.
16 __host__ int b1; // expected-warning {{attribute only applies to functions}}
19 __constant__ void c2(); // expected-warning {{attribute only applies to variables}}
21 __shared__ void d2(); // expected-warning {{attribute only applies to variables}}
22 __global__ int e1; // expected-warning {{attribute only applies to functions}}
25 // Try all pairs of attributes which can be present on a function or a
26 // variable. Check both orderings of the attributes, as that can matter in
28 __device__ __host__ void z1();
29 __device__ __constant__ int z2;
30 __device__ __shared__ int z3;
31 __device__ __global__ void z4(); // expected-error {{attributes are not compatible}}
32 // expected-note@-1 {{conflicting attribute is here}}
34 __host__ __device__ void z5();
35 __host__ __global__ void z6(); // expected-error {{attributes are not compatible}}
36 // expected-note@-1 {{conflicting attribute is here}}
38 __constant__ __device__ int z7;
39 __constant__ __shared__ int z8; // expected-error {{attributes are not compatible}}
40 // expected-note@-1 {{conflicting attribute is here}}
42 __shared__ __device__ int z9;
43 __shared__ __constant__ int z10; // expected-error {{attributes are not compatible}}
44 // expected-note@-1 {{conflicting attribute is here}}
45 __constant__ __shared__ int z10a; // expected-error {{attributes are not compatible}}
46 // expected-note@-1 {{conflicting attribute is here}}
48 __global__ __device__ void z11(); // expected-error {{attributes are not compatible}}
49 // expected-note@-1 {{conflicting attribute is here}}
50 __global__ __host__ void z12(); // expected-error {{attributes are not compatible}}
51 // expected-note@-1 {{conflicting attribute is here}}
54 __global__ void foo() {}; // expected-error {{must be a free function or static member function}}
55 __global__ static void bar(); // expected-warning {{kernel function 'bar' is a member function}}
56 // Although this is implicitly inline, we shouldn't warn.
57 __global__ static void baz() {}; // expected-warning {{kernel function 'baz' is a member function}}
60 __global__ static inline void foobar() {};
61 #ifdef EXPECT_INLINE_WARNING
62 // expected-warning@-2 {{ignored 'inline' attribute on kernel function 'foobar'}}
65 __constant__ int global_constant;
67 __constant__ int c; // expected-error {{__constant__ variables must be global}}
68 __shared__ int s; // expected-error {{__shared__ local variables not allowed in __host__ functions}}
70 __device__ void device_fn() {
71 __constant__ int c; // expected-error {{__constant__ variables must be global}}