PR45450: disable legality check after an openscop read

2011-07-27  Sebastian Pop  <sebastian.pop@amd.com>

	PR middle-end/45450
	* graphite-poly.c (apply_poly_transforms): Disable legality check
	after an openscop read.

From-SVN: r176837

gcc/ChangeLog

 2011-07-27  Sebastian Pop  <sebastian.pop@amd.com>
 
+	PR middle-end/45450
+	* graphite-poly.c (apply_poly_transforms): Disable legality check
+	after an openscop read.
+
+2011-07-27  Sebastian Pop  <sebastian.pop@amd.com>
+
 	PR middle-end/47691
 	* graphite-clast-to-gimple.c (translate_clast_user): Update use of
 	copy_bb_and_scalar_dependences.

gcc/graphite-poly.c

@@ -738,7 +738,11 @@ apply_poly_transforms (scop_p scop)
       graphite_file = init_graphite_in_file (file_scop_number);
       transform_done |= graphite_read_scop_file (graphite_file, scop);
 
-      if (!graphite_legal_transform (scop))
+      /* We cannot check for the legality of the transform here: there
+	 are cases where graphite_legal_transform cannot determine the
+	 dependence at compile time.  For an example, see the
+	 explanation of why http://gcc.gnu.org/PR45450 is invalid.  */
+      if (0 && !graphite_legal_transform (scop))
 	fatal_error ("the graphite file read for scop %d does not contain a legal transform",
 		     (int) file_scop_number);