Use rtx_insn in more places in fwprop.c

gcc/
2014-08-26  David Malcolm  <dmalcolm@redhat.com>

	* fwprop.c (local_ref_killed_between_p): Strengthen params "from",
	"to" and local "insn" from rtx to rtx_insn *.

From-SVN: r214541

gcc/ChangeLog

 2014-08-26  David Malcolm  <dmalcolm@redhat.com>
 
+	* fwprop.c (local_ref_killed_between_p): Strengthen params "from",
+	"to" and local "insn" from rtx to rtx_insn *.
+
+2014-08-26  David Malcolm  <dmalcolm@redhat.com>
+
 	* sel-sched.c (find_place_for_bookkeeping): Strengthen local "insn"
 	from rtx to rtx_insn *.
 	(need_nop_to_preserve_insn_bb): Likewise for param "insn".

gcc/fwprop.c

@@ -692,9 +692,9 @@ propagate_rtx (rtx x, enum machine_mode mode, rtx old_rtx, rtx new_rtx,
    between FROM to (but not including) TO.  */
 
 static bool
-local_ref_killed_between_p (df_ref ref, rtx from, rtx to)
+local_ref_killed_between_p (df_ref ref, rtx_insn *from, rtx_insn *to)
 {
-  rtx insn;
+  rtx_insn *insn;
 
   for (insn = from; insn != to; insn = NEXT_INSN (insn))
     {