Free invalid postdominance info.

2011-01-25  Vladimir Kargov  <kargov@gmail.com>

	* graphite-scop-detection.c (canonicalize_loop_closed_ssa): Free
	invalid postdominance info.

From-SVN: r169194

gcc/ChangeLog

+2011-01-25  Vladimir Kargov  <kargov@gmail.com>
+
+	* graphite-scop-detection.c (canonicalize_loop_closed_ssa): Free
+	invalid postdominance info.
+
 2011-01-24  Jan Hubicka  <jh@suse.cz>
 
 	PR c/21659

gcc/ChangeLog.graphite

+2011-01-05  Vladimir Kargov  <kargov@gmail.com>
+
+	* graphite-scop-detection.c (canonicalize_loop_closed_ssa): Free
+	invalid postdominance info
+
 2010-12-29  Sebastian Pop  <sebastian.pop@amd.com>
 
 	* Makefile.in (graphite-opencl-codegen.o): Update dependences.

gcc/graphite-scop-detection.c

@@ -1249,6 +1249,10 @@ canonicalize_loop_closed_ssa (loop_p loop)
 	      }
 	}
     }
+
+  /* The code above does not properly handle changes in the post dominance
+     information (yet).  */
+  free_dominance_info (CDI_POST_DOMINATORS);
 }
 
 /* Converts the current loop closed SSA form to a canonical form