sel_bb_{head|end} return rtx_insn

2014-08-21  David Malcolm  <dmalcolm@redhat.com>

	* sel-sched-ir.h (exit_insn): Strengthen from rtx to rtx_insn *.
	(sel_bb_head): Strengthen return type insn_t (currently just an
	rtx) to rtx_insn *.
	(sel_bb_end): Likewise.

	* sel-sched-ir.c (exit_insn): Strengthen from rtx to rtx_insn *.
	(sel_bb_head): Strengthen return type and local "head" from
	insn_t (currently just an rtx) to rtx_insn *.
	(sel_bb_end): Likewise for return type.
	(free_nop_and_exit_insns): Replace use of NULL_RTX with NULL when
	working with insn.

From-SVN: r214247

gcc/ChangeLog

 2014-08-21  David Malcolm  <dmalcolm@redhat.com>
 
+	* sel-sched-ir.h (exit_insn): Strengthen from rtx to rtx_insn *.
+	(sel_bb_head): Strengthen return type insn_t (currently just an
+	rtx) to rtx_insn *.
+	(sel_bb_end): Likewise.
+
+	* sel-sched-ir.c (exit_insn): Strengthen from rtx to rtx_insn *.
+	(sel_bb_head): Strengthen return type and local "head" from
+	insn_t (currently just an rtx) to rtx_insn *.
+	(sel_bb_end): Likewise for return type.
+	(free_nop_and_exit_insns): Replace use of NULL_RTX with NULL when
+	working with insn.
+
+2014-08-21  David Malcolm  <dmalcolm@redhat.com>
+
 	* basic-block.h (get_last_bb_insn): Strengthen return type from
 	rtx to rtx_insn *.
 	* cfgrtl.c (get_last_bb_insn): Likewise, and for locals "tmp" and

gcc/sel-sched-ir.c

@@ -132,7 +132,7 @@ static vec<rtx_note *> bb_note_pool;
 rtx nop_pattern = NULL_RTX;
 /* A special instruction that resides in EXIT_BLOCK.
    EXIT_INSN is successor of the insns that lead to EXIT_BLOCK.  */
-rtx exit_insn = NULL_RTX;
+rtx_insn *exit_insn = NULL;
 
 /* TRUE if while scheduling current region, which is loop, its preheader
    was removed.  */
@@ -4530,10 +4530,10 @@ static struct
 /* Functions to work with control-flow graph.  */
 
 /* Return basic block note of BB.  */
-insn_t
+rtx_insn *
 sel_bb_head (basic_block bb)
 {
-  insn_t head;
+  rtx_insn *head;
 
   if (bb == EXIT_BLOCK_PTR_FOR_FN (cfun))
     {
@@ -4548,7 +4548,7 @@ sel_bb_head (basic_block bb)
       head = next_nonnote_insn (note);
 
       if (head && (BARRIER_P (head) || BLOCK_FOR_INSN (head) != bb))
-	head = NULL_RTX;
+	head = NULL;
     }
 
   return head;
@@ -4562,11 +4562,11 @@ sel_bb_head_p (insn_t insn)
 }
 
 /* Return last insn of BB.  */
-insn_t
+rtx_insn *
 sel_bb_end (basic_block bb)
 {
   if (sel_bb_empty_p (bb))
-    return NULL_RTX;
+    return NULL;
 
   gcc_assert (bb != EXIT_BLOCK_PTR_FOR_FN (cfun));
 
@@ -5853,7 +5853,7 @@ setup_nop_and_exit_insns (void)
 void
 free_nop_and_exit_insns (void)
 {
-  exit_insn = NULL_RTX;
+  exit_insn = NULL;
   nop_pattern = NULL_RTX;
 }
 

gcc/sel-sched-ir.h

@@ -809,7 +809,7 @@ extern flist_t fences;
 extern rtx nop_pattern;
 
 /* An insn that 'contained' in EXIT block.  */
-extern rtx exit_insn;
+extern rtx_insn *exit_insn;
 
 /* Provide a separate luid for the insn.  */
 #define INSN_INIT_TODO_LUID (1)
@@ -1012,8 +1012,8 @@ struct succs_info
 /* Some needed definitions.  */
 extern basic_block after_recovery;
 
-extern insn_t sel_bb_head (basic_block);
-extern insn_t sel_bb_end (basic_block);
+extern rtx_insn *sel_bb_head (basic_block);
+extern rtx_insn *sel_bb_end (basic_block);
 extern bool sel_bb_empty_p (basic_block);
 extern bool in_current_region_p (basic_block);
 
@@ -1583,9 +1583,9 @@ extern bool insn_at_boundary_p (insn_t);
 
 /* Basic block and CFG functions.  */
 
-extern insn_t sel_bb_head (basic_block);
+extern rtx_insn *sel_bb_head (basic_block);
 extern bool sel_bb_head_p (insn_t);
-extern insn_t sel_bb_end (basic_block);
+extern rtx_insn *sel_bb_end (basic_block);
 extern bool sel_bb_end_p (insn_t);
 extern bool sel_bb_empty_p (basic_block);