make delete_insn () take a rtx_insn *

gcc/ChangeLog:

2016-11-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* cfgrtl.c (delete_insn): Change argument type to rtx_insn *.
	(fixup_reorder_chain): Adjust.
	* cfgrtl.h: Adjust prototype.

From-SVN: r242653

gcc/ChangeLog

 2016-11-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
 
+	* cfgrtl.c (delete_insn): Change argument type to rtx_insn *.
+	(fixup_reorder_chain): Adjust.
+	* cfgrtl.h: Adjust prototype.
+
+2016-11-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
+
 	* rtl.h: Adjust prototype.
 	* rtlanal.c (replace_label_in_insn): Change argument type to
 	rtx_insn *.

gcc/cfgrtl.c

@@ -123,9 +123,8 @@ can_delete_label_p (const rtx_code_label *label)
 /* Delete INSN by patching it out.  */
 
 void
-delete_insn (rtx uncast_insn)
+delete_insn (rtx_insn *insn)
 {
-  rtx_insn *insn = as_a <rtx_insn *> (uncast_insn);
   rtx note;
   bool really_delete = true;
 
@@ -3817,7 +3816,7 @@ fixup_reorder_chain (void)
 		  update_br_prob_note (bb);
 		  if (LABEL_NUSES (ret_label) == 0
 		      && single_pred_p (e_taken->dest))
-		    delete_insn (ret_label);
+		    delete_insn (as_a<rtx_insn *> (ret_label));
 		  continue;
 		}
 	    }

gcc/cfgrtl.h

@@ -20,7 +20,7 @@ along with GCC; see the file COPYING3.  If not see
 #ifndef GCC_CFGRTL_H
 #define GCC_CFGRTL_H
 
-extern void delete_insn (rtx);
+extern void delete_insn (rtx_insn *);
 extern bool delete_insn_and_edges (rtx_insn *);
 extern void delete_insn_chain (rtx, rtx_insn *, bool);
 extern basic_block create_basic_block_structure (rtx_insn *, rtx_insn *,