cfganal.c (pre_and_rev_post_order_compute_fn): Correctly enter entry and exit…

cfganal.c (pre_and_rev_post_order_compute_fn): Correctly enter entry and exit blocks for reverse post order.

	* cfganal.c (pre_and_rev_post_order_compute_fn): Correctly
	enter entry and exit blocks for reverse post order.

From-SVN: r227341

gcc/ChangeLog

+2015-08-31  Michael Matz  <matz@suse.de>
+
+	* cfganal.c (pre_and_rev_post_order_compute_fn): Correctly
+	enter entry and exit blocks for reverse post order.
+
 2015-08-31  Richard Biener  <rguenther@suse.de>
 
 	* lto-streamer.h (lto_location_cache::cached_location::sysp): Add.

gcc/cfganal.c

@@ -925,7 +925,7 @@ pre_and_rev_post_order_compute_fn (struct function *fn,
 	pre_order[pre_order_num] = ENTRY_BLOCK;
       pre_order_num++;
       if (rev_post_order)
-	rev_post_order[rev_post_order_num--] = ENTRY_BLOCK;
+	rev_post_order[rev_post_order_num--] = EXIT_BLOCK;
     }
   else
     rev_post_order_num -= NUM_FIXED_BLOCKS;
@@ -996,7 +996,7 @@ pre_and_rev_post_order_compute_fn (struct function *fn,
 	pre_order[pre_order_num] = EXIT_BLOCK;
       pre_order_num++;
       if (rev_post_order)
-	rev_post_order[rev_post_order_num--] = EXIT_BLOCK;
+	rev_post_order[rev_post_order_num--] = ENTRY_BLOCK;
     }
 
   return pre_order_num;