make next/prev nondebug_insn take rtx_insn *

gcc/ChangeLog:

2016-09-22  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* emit-rtl.c (next_nondebug_insn): Change argument type to
	rtx_insn *.
	(prev_nondebug_insn): Likewise.
	* loop-doloop.c (doloop_condition_get): Likewise.
	* rtl.h: Adjust prototype.
	* cfgloop.h: Likewise.

From-SVN: r240358

gcc/ChangeLog

 2016-09-22  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
 
+	* emit-rtl.c (next_nondebug_insn): Change argument type to
+	rtx_insn *.
+	(prev_nondebug_insn): Likewise.
+	* loop-doloop.c (doloop_condition_get): Likewise.
+	* rtl.h: Adjust prototype.
+	* cfgloop.h: Likewise.
+
+2016-09-22  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
+
 	* emit-rtl.c (next_nonnote_insn): Change argument type to
 	rtx_insn *.
 	(prev_nonnote_insn): Likewise.

gcc/cfgloop.h

@@ -371,7 +371,7 @@ extern bool just_once_each_iteration_p (const struct loop *, const_basic_block);
 gcov_type expected_loop_iterations_unbounded (const struct loop *,
 					      bool *read_profile_p = NULL);
 extern unsigned expected_loop_iterations (struct loop *);
-extern rtx doloop_condition_get (rtx);
+extern rtx doloop_condition_get (rtx_insn *);
 
 void mark_loop_for_removal (loop_p);
 

gcc/emit-rtl.c

@@ -3373,10 +3373,8 @@ prev_nonnote_insn_bb (rtx uncast_insn)
    routine does not look inside SEQUENCEs.  */
 
 rtx_insn *
-next_nondebug_insn (rtx uncast_insn)
+next_nondebug_insn (rtx_insn *insn)
 {
-  rtx_insn *insn = safe_as_a <rtx_insn *> (uncast_insn);
-
   while (insn)
     {
       insn = NEXT_INSN (insn);
@@ -3391,10 +3389,8 @@ next_nondebug_insn (rtx uncast_insn)
    This routine does not look inside SEQUENCEs.  */
 
 rtx_insn *
-prev_nondebug_insn (rtx uncast_insn)
+prev_nondebug_insn (rtx_insn *insn)
 {
-  rtx_insn *insn = safe_as_a <rtx_insn *> (uncast_insn);
-
   while (insn)
     {
       insn = PREV_INSN (insn);

gcc/loop-doloop.c

@@ -70,7 +70,7 @@ along with GCC; see the file COPYING3.  If not see
    if it is not a decrement and branch jump insn.  */
 
 rtx
-doloop_condition_get (rtx doloop_pat)
+doloop_condition_get (rtx_insn *doloop_pat)
 {
   rtx cmp;
   rtx inc;

gcc/rtl.h

@@ -2838,8 +2838,8 @@ extern rtx_insn *prev_nonnote_insn (rtx_insn *);
 extern rtx_insn *prev_nonnote_insn_bb (rtx);
 extern rtx_insn *next_nonnote_insn (rtx_insn *);
 extern rtx_insn *next_nonnote_insn_bb (rtx_insn *);
-extern rtx_insn *prev_nondebug_insn (rtx);
-extern rtx_insn *next_nondebug_insn (rtx);
+extern rtx_insn *prev_nondebug_insn (rtx_insn *);
+extern rtx_insn *next_nondebug_insn (rtx_insn *);
 extern rtx_insn *prev_nonnote_nondebug_insn (rtx);
 extern rtx_insn *next_nonnote_nondebug_insn (rtx);
 extern rtx_insn *prev_real_insn (rtx);