Add a test for passing the same parameter several times

tests/Makefile.am

@@ -142,6 +142,7 @@ noinst_PROGRAMS =				\
 	datawizard/sync_and_notify_data		\
 	datawizard/sync_and_notify_data_implicit\
 	datawizard/dsm_stress			\
+	datawizard/double_parameter		\
 	datawizard/write_only_tmp_buffer	\
 	datawizard/data_invalidation		\
 	datawizard/dining_philosophers		\

tests/datawizard/double_parameter.c

@@ -0,0 +1,85 @@
+/* StarPU --- Runtime system for heterogeneous multicore architectures.
+ *
+ * Copyright (C) 2011  Université de Bordeaux 1
+ *
+ * StarPU is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at
+ * your option) any later version.
+ *
+ * StarPU is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * See the GNU Lesser General Public License in COPYING.LGPL for more details.
+ */
+
+#include <starpu.h>
+#include "../common/helper.h"
+
+static void dummy_func(void *descr[] __attribute__ ((unused)), void *arg __attribute__ ((unused)))
+{
+}
+
+static struct starpu_codelet codelet =
+{
+        .where = STARPU_CPU,
+        .cpu_funcs = { dummy_func, NULL },
+        .model = NULL,
+        .nbuffers = 2
+};
+
+
+int main(int argc, char **argv)
+{
+	float foo = 0.0f;
+	starpu_data_handle_t handle;
+	int ret;
+	struct starpu_task *task;
+
+	ret = starpu_init(NULL);
+	STARPU_CHECK_RETURN_VALUE(ret, "starpu_init");
+
+	starpu_variable_data_register(&handle, 0, (uintptr_t)&foo, sizeof(foo));
+
+	task = starpu_task_create();
+
+#define SUBMIT(mode1, mode2) \
+	task->cl = &codelet; \
+	task->buffers[0].handle = handle; \
+	task->buffers[0].mode = STARPU_##mode1; \
+	task->buffers[1].handle = handle; \
+	task->buffers[1].mode = STARPU_##mode2; \
+\
+	ret = starpu_task_submit(task); \
+	if (ret == -ENODEV) goto enodev; \
+	STARPU_CHECK_RETURN_VALUE(ret, "starpu_task_submit");
+
+	SUBMIT(R,R);
+#if 0
+	/* Not possible yet */
+	SUBMIT(R,W);
+	SUBMIT(R,RW);
+	SUBMIT(W,R);
+	SUBMIT(W,W);
+	SUBMIT(W,RW);
+	SUBMIT(RW,R);
+	SUBMIT(RW,W);
+	SUBMIT(RW,RW);
+#endif
+
+	ret = starpu_task_wait_for_all();
+	STARPU_CHECK_RETURN_VALUE(ret, "starpu_task_wait_for_all");
+	starpu_data_unregister(handle);
+	starpu_shutdown();
+
+        return EXIT_SUCCESS;
+
+enodev:
+	starpu_data_unregister(handle);
+	fprintf(stderr, "WARNING: No one can execute this task\n");
+	/* yes, we do not perform the computation but we did detect that no one
+ 	 * could perform the kernel, so this is not an error from StarPU */
+	starpu_shutdown();
+	return 77;
+}