1 files changed, 73 insertions(+), 0 deletions(-)

A clang/disable-test/Sema/warn-type-safety.cpp

@@ 0,0 1,73 @@
+// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
+
+typedef struct ompi_datatype_t *MPI_Datatype;
+
+#define OMPI_PREDEFINED_GLOBAL(type, global) ((type) &(global))
+
+#define MPI_FLOAT OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_mpi_float)
+#define MPI_INT   OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_mpi_int)
+#define MPI_NULL  OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_mpi_null)
+
+extern struct ompi_predefined_datatype_t ompi_mpi_float __attribute__(( type_tag_for_datatype(mpi,float) ));
+extern struct ompi_predefined_datatype_t ompi_mpi_int   __attribute__(( type_tag_for_datatype(mpi,int) ));
+extern struct ompi_predefined_datatype_t ompi_mpi_null  __attribute__(( type_tag_for_datatype(mpi,void,must_be_null) ));
+
+int f(int x) { return x; }
+static const int wrong_init __attribute__(( type_tag_for_datatype(zzz,int) )) = f(100); // expected-error {{'type_tag_for_datatype' attribute requires the initializer to be an integral constant expression}}
+
+//===--- Tests ------------------------------------------------------------===//
+// Check that hidden 'this' is handled correctly.
+
+class C
+{
+public:
+  void f1(void *buf, int count, MPI_Datatype datatype)
+       __attribute__(( pointer_with_type_tag(mpi,5,6) )); // expected-error {{attribute parameter 2 is out of bounds}}
+
+  void f2(void *buf, int count, MPI_Datatype datatype)
+       __attribute__(( pointer_with_type_tag(mpi,2,5) )); // expected-error {{attribute parameter 3 is out of bounds}}
+
+  void f3(void *buf, int count, MPI_Datatype datatype)
+       __attribute__(( pointer_with_type_tag(mpi,1,5) )); // expected-error {{attribute is invalid for the implicit this argument}}
+
+  void f4(void *buf, int count, MPI_Datatype datatype)
+       __attribute__(( pointer_with_type_tag(mpi,2,1) )); // expected-error {{attribute is invalid for the implicit this argument}}
+
+  void MPI_Send(void *buf, int count, MPI_Datatype datatype)
+       __attribute__(( pointer_with_type_tag(mpi,2,4) )); // no-error
+};
+
+// Check that we don't crash on type and value dependent expressions.
+template<int a>
+void value_dep(void *buf, int count, MPI_Datatype datatype)
+     __attribute__(( pointer_with_type_tag(mpi,a,5) )); // expected-error {{attribute requires parameter 2 to be an integer constant}}
+
+class OperatorIntStar
+{
+public:
+  operator int*();
+};
+
+void test1(C *c, int *int_buf)
+{
+  c->MPI_Send(int_buf, 1, MPI_INT); // no-warning
+  c->MPI_Send(int_buf, 1, MPI_FLOAT); // expected-warning {{argument type 'int *' doesn't match specified 'mpi' type tag that requires 'float *'}}
+  c->MPI_Send(0, 0, MPI_INT); // no-warning
+  c->MPI_Send(nullptr, 0, MPI_INT); // no-warning
+
+  OperatorIntStar i;
+  c->MPI_Send(i, 1, MPI_INT); // no-warning
+  c->MPI_Send(i, 1, MPI_FLOAT); // expected-warning {{argument type 'int *' doesn't match specified 'mpi' type tag that requires 'float *'}}
+}
+
+template<typename T>
+void test2(C *c, int *int_buf, T tag)
+{
+  c->MPI_Send(int_buf, 1, tag); // no-warning
+}
+
+void test3(C *c, int *int_buf) {
+  test2(c, int_buf, MPI_INT);
+  test2(c, int_buf, MPI_NULL);
+}
+