CUDA: diagnose invalid calls across targets

llvm-svn: 140978

1 files changed, 44 insertions, 0 deletions

diff --git a/clang/test/SemaCUDA/function-target.cu b/clang/test/SemaCUDA/function-target.cu
new file mode 100644
index 00000000000..c7a55e2fad8
--- /dev/null
+++ b/clang/test/SemaCUDA/function-target.cu
@@ -0,0 +1,44 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+#include "cuda.h"
+
+__host__ void h1h(void);
+__device__ void h1d(void); // expected-note {{candidate function not viable: call to __device__ function from __host__ function}}
+__host__ __device__ void h1hd(void);
+__global__ void h1g(void);
+
+struct h1ds { // expected-note {{requires 1 argument}}
+  __device__ h1ds(); // expected-note {{candidate constructor not viable: call to __device__ function from __host__ function}}
+};
+
+__host__ void h1(void) {
+  h1h();
+  h1d(); // expected-error {{no matching function}}
+  h1hd();
+  h1g<<<1, 1>>>();
+  h1ds x; // expected-error {{no matching constructor}}
+}
+
+__host__ void d1h(void); // expected-note {{candidate function not viable: call to __host__ function from __device__ function}}
+__device__ void d1d(void);
+__host__ __device__ void d1hd(void);
+__global__ void d1g(void); // expected-note {{'d1g' declared here}}
+
+__device__ void d1(void) {
+  d1h(); // expected-error {{no matching function}}
+  d1d();
+  d1hd();
+  d1g<<<1, 1>>>(); // expected-error {{reference to __global__ function 'd1g' in __device__ function}}
+}
+
+__host__ void hd1h(void); // expected-note {{candidate function not viable: call to __host__ function from __host__ __device__ function}}
+__device__ void hd1d(void); // expected-note {{candidate function not viable: call to __device__ function from __host__ __device__ function}}
+__host__ __device__ void hd1hd(void);
+__global__ void hd1g(void); // expected-note {{'hd1g' declared here}}
+
+__host__ __device__ void hd1(void) {
+  hd1h(); // expected-error {{no matching function}}
+  hd1d(); // expected-error {{no matching function}}
+  hd1hd();
+  hd1g<<<1, 1>>>(); // expected-error {{reference to __global__ function 'hd1g' in __host__ __device__ function}}
+}