passes.c (init_optimization_passes): For -Og move pass_object_sizes inbetween CCP and copyprop.

2012-09-19  Richard Guenther  <rguenther@suse.de>

	* passes.c (init_optimization_passes): For -Og move
	pass_object_sizes inbetween CCP and copyprop.

From-SVN: r191476

gcc/ChangeLog

 2012-09-19  Richard Guenther  <rguenther@suse.de>
 
+	* passes.c (init_optimization_passes): For -Og move
+	pass_object_sizes inbetween CCP and copyprop.
+
+2012-09-19  Richard Guenther  <rguenther@suse.de>
+
 	* tree-ssa-forwprop.c (get_prop_source_stmt): Simplify. 
 
 2012-09-19  Jan Hubicka  <jh@suse.cz>

gcc/passes.c

@@ -1528,11 +1528,13 @@ init_optimization_passes (void)
       NEXT_PASS (pass_lower_vector_ssa);
       /* Perform simple scalar cleanup which is constant/copy propagation.  */
       NEXT_PASS (pass_ccp);
+      NEXT_PASS (pass_object_sizes);
+      /* Copy propagation also copy-propagates constants, this is necessary
+         to forward object-size results properly.  */
       NEXT_PASS (pass_copy_prop);
       NEXT_PASS (pass_rename_ssa_copies);
       NEXT_PASS (pass_dce);
       /* Fold remaining builtins.  */
-      NEXT_PASS (pass_object_sizes);
       NEXT_PASS (pass_fold_builtins);
       /* ???  We do want some kind of loop invariant motion, but we possibly
          need to adjust LIM to be more friendly towards preserving accurate