Strengthen return_label and naked_return_label to rtx_code_label *

gcc/
2014-08-28  David Malcolm  <dmalcolm@redhat.com>

	* function.h (struct rtl_data): Strengthen fields "x_return_label"
	and "x_naked_return_label" from rtx to rtx_code_label *.

From-SVN: r214686

gcc/ChangeLog

 2014-08-28  David Malcolm  <dmalcolm@redhat.com>
 
+	* function.h (struct rtl_data): Strengthen fields "x_return_label"
+	and "x_naked_return_label" from rtx to rtx_code_label *.
+
+2014-08-28  David Malcolm  <dmalcolm@redhat.com>
+
 	* rtl.h (SET_PREV_INSN): Strengthen param from rtx to rtx_insn *.
 	(SET_NEXT_INSN): Likewise.
 	(gen_rtvec_v): Add an overload for param types (int, rtx_insn **).

gcc/function.h

@@ -271,12 +271,12 @@ struct GTY(()) rtl_data {
   /* Label that will go on function epilogue.
      Jumping to this label serves as a "return" instruction
      on machines which require execution of the epilogue on all returns.  */
-  rtx x_return_label;
+  rtx_code_label *x_return_label;
 
   /* Label that will go on the end of function epilogue.
      Jumping to this label serves as a "naked return" instruction
      on machines which require execution of the epilogue on all returns.  */
-  rtx x_naked_return_label;
+  rtx_code_label *x_naked_return_label;
 
   /* List (chain of EXPR_LISTs) of all stack slots in this function.
      Made for the sake of unshare_all_rtl.  */