Fix PR47561: print the Graphite flags.

2011-02-01  Sebastian Pop  <sebastian.pop@amd.com>

	PR tree-optimization/47561
	* toplev.c (process_options): Print the Graphite flags.  Add
	flag_loop_flatten to the list of options requiring Graphite.

From-SVN: r169496

gcc/ChangeLog

+2011-02-01  Sebastian Pop  <sebastian.pop@amd.com>
+
+	PR tree-optimization/47561
+	* toplev.c (process_options): Print the Graphite flags.  Add
+	flag_loop_flatten to the list of options requiring Graphite.
+
 2011-02-01  Joseph Myers  <joseph@codesourcery.com>
 
 	* config/i386/cygming.opt (posix): New Driver option.

gcc/toplev.c

@@ -1314,12 +1314,16 @@ process_options (void)
 
 #ifndef HAVE_cloog
   if (flag_graphite
+      || flag_graphite_identity
       || flag_loop_block
+      || flag_loop_flatten
       || flag_loop_interchange
       || flag_loop_strip_mine
-      || flag_graphite_identity
       || flag_loop_parallelize_all)
-    sorry ("Graphite loop optimizations cannot be used");
+    sorry ("Graphite loop optimizations cannot be used (-fgraphite, "
+	   "-fgraphite-identity, -floop-block, -floop-flatten, "
+	   "-floop-interchange, -floop-strip-mine, -floop-parallelize-all, "
+	   "and -ftree-loop-linear)");
 #endif
 
   /* Unrolling all loops implies that standard loop unrolling must also