Add testcase from Jean-Marie Couteyen

tests/Makefile.am

@@ -1,6 +1,6 @@
 # StarPU --- Runtime system for heterogeneous multicore architectures.
 #
-# Copyright (C) 2009-2014  Université de Bordeaux
+# Copyright (C) 2009-2015  Université de Bordeaux
 # Copyright (C) 2010, 2011, 2012, 2013, 2014  Centre National de la Recherche Scientifique
 # Copyright (C) 2010, 2011, 2012  Institut National de Recherche en Informatique et Automatique
 #
@@ -210,6 +210,7 @@ noinst_PROGRAMS =				\
 	datawizard/wt_broadcast			\
 	datawizard/readonly			\
 	datawizard/specific_node		\
+	datawizard/task_with_multiple_time_the_same_handle	\
 	disk/disk_copy				\
 	disk/disk_compute			\
 	disk/disk_pack				\

tests/datawizard/task_with_multiple_time_the_same_handle.c

@@ -0,0 +1,84 @@
+/* StarPU --- Runtime system for heterogeneous multicore architectures.
+ *
+ * Copyright (C) 2015	Inria
+ *
+ * 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 "../helper.h"
+
+static void sum_cpu(void * descr[], void *cl_arg)
+{
+	double * v_dst = (double *) STARPU_VARIABLE_GET_PTR(descr[0]);
+	double * v_src = (double *) STARPU_VARIABLE_GET_PTR(descr[1]);
+	*v_dst+=*v_src;
+}
+
+static void sum3_cpu(void * descr[], void *cl_arg)
+{
+	double * v_src1 = (double *) STARPU_VARIABLE_GET_PTR(descr[1]);
+	double * v_src2 = (double *) STARPU_VARIABLE_GET_PTR(descr[1]);
+	double * v_dst = (double *) STARPU_VARIABLE_GET_PTR(descr[0]);
+	*v_dst+=*v_src1+*v_src2;
+}
+
+static struct starpu_codelet sum_cl =
+{
+	.cpu_funcs = {sum_cpu, NULL},
+	.nbuffers = 2,
+	.modes={STARPU_RW,STARPU_R}
+};
+
+static struct starpu_codelet sum3_cl =
+{
+	.cpu_funcs = {sum3_cpu, NULL},
+	.nbuffers = 3,
+	.modes={STARPU_R,STARPU_R,STARPU_RW}
+};
+
+int main(int argc, char * argv[])
+{
+	starpu_data_handle_t handle;
+	int ret = 0;
+	double value=1.0;
+	int i;
+
+	ret=starpu_init(NULL);
+	if (ret == -ENODEV) return STARPU_TEST_SKIPPED;
+
+	starpu_variable_data_register(&handle,0,(uintptr_t)&value,sizeof(double));
+
+	for (i=0; i<2; i++)
+	{
+		starpu_insert_task(&sum_cl,
+		                   STARPU_RW, handle,
+		                   STARPU_R, handle,
+		                   0);
+		starpu_insert_task(&sum3_cl,
+		                   STARPU_R, handle,
+		                   STARPU_R, handle,
+		                   STARPU_RW, handle,
+		                   0);
+	}
+
+	starpu_task_wait_for_all();
+	starpu_data_unregister(handle);
+	if (value != 36)
+	{
+		FPRINTF(stderr, "value is %f instead of %f\n", value, 36);
+		ret = EXIT_FAILURE;
+	}
+
+	starpu_shutdown();
+	return ret;
+}