Dont add unknown subscript upper bounds.

2009-08-11  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite-sese-to-poly.c (pdr_add_data_dimensions): Dont add
	unknown subscript upper bounds.

	* testsuite/gcc.dg/graphite/interchange-6.c: Un-XFAIL.

From-SVN: r150693

gcc/ChangeLog

 2009-08-12  Sebastian Pop  <sebastian.pop@amd.com>
+
+	* graphite-sese-to-poly.c (pdr_add_data_dimensions): Dont add
+	unknown subscript upper bounds.
+
+2009-08-12  Sebastian Pop  <sebastian.pop@amd.com>
 	    Pranav Garg  <pranav.garg2107@gmail.com>
 
 	* graphite-interchange.c (gather_access_strides): Removed.

gcc/ChangeLog.graphite

 2009-08-11  Sebastian Pop  <sebastian.pop@amd.com>
+
+	* graphite-sese-to-poly.c (pdr_add_data_dimensions): Dont add
+	unknown subscript upper bounds.
+
+	* testsuite/gcc.dg/graphite/interchange-6.c: Un-XFAIL.
+
+2009-08-11  Sebastian Pop  <sebastian.pop@amd.com>
 	    Pranav Garg  <pranav.garg2107@gmail.com>
 
 	* graphite-interchange.c (gather_access_strides): Removed.

gcc/graphite-sese-to-poly.c

@@ -1669,6 +1669,7 @@ pdr_add_data_dimensions (ppl_Polyhedron_t accesses, data_reference_p dr,
       ppl_Linear_Expression_t expr;
       ppl_Constraint_t cstr;
       ppl_dimension_type subscript = dom_nb_dims + 1 + i;
+      int size;
 
       /* 0 <= subscript */
       ppl_new_Linear_Expression_with_dimension (&expr, accessp_nb_dims);
@@ -1685,16 +1686,19 @@ pdr_add_data_dimensions (ppl_Polyhedron_t accesses, data_reference_p dr,
 	break;
 
       /* subscript <= array_size */
-      ppl_new_Linear_Expression_with_dimension (&expr, accessp_nb_dims);
-      ppl_set_coef (expr, subscript, -1);
+      size = elt_size ? int_cst_value (array_size) / elt_size : 0;
+      if (size)
+	{
+	  ppl_new_Linear_Expression_with_dimension (&expr, accessp_nb_dims);
+	  ppl_set_coef (expr, subscript, -1);
 
-      if (elt_size)
-	ppl_set_inhomogeneous (expr, int_cst_value (array_size) / elt_size);
+	  ppl_set_inhomogeneous (expr, size);
 
-      ppl_new_Constraint (&cstr, expr, PPL_CONSTRAINT_TYPE_GREATER_OR_EQUAL);
-      ppl_Polyhedron_add_constraint (accesses, cstr);
-      ppl_delete_Linear_Expression (expr);
-      ppl_delete_Constraint (cstr);
+	  ppl_new_Constraint (&cstr, expr, PPL_CONSTRAINT_TYPE_GREATER_OR_EQUAL);
+	  ppl_Polyhedron_add_constraint (accesses, cstr);
+	  ppl_delete_Linear_Expression (expr);
+	  ppl_delete_Constraint (cstr);
+	}
 
       elt_size = int_cst_value (array_size);
     }

gcc/testsuite/ChangeLog

 2009-08-12  Sebastian Pop  <sebastian.pop@amd.com>
+
+	* testsuite/gcc.dg/graphite/interchange-6.c: Un-XFAIL.
+
+2009-08-12  Sebastian Pop  <sebastian.pop@amd.com>
 	    Pranav Garg  <pranav.garg2107@gmail.com>
 
 	* testsuite/gcc.dg/graphite/interchange-6.c: XFAILed.

gcc/testsuite/gcc.dg/graphite/interchange-6.c

@@ -13,5 +13,5 @@ int medium_loop_interchange(int A[100][200])
   return A[1][1];
 }
 
-/* { dg-final { scan-tree-dump-times "will be interchanged" 1 "graphite" { xfail *-*-* } } } */
+/* { dg-final { scan-tree-dump-times "will be interchanged" 1 "graphite" } } */
 /* { dg-final { cleanup-tree-dump "graphite" } } */