Change the types of arguments and return values for several functions from rtx to rtx_insn *

gcc/ChangeLog:

2014-09-04  Trevor Saunders  <tsaunders@mozilla.com>

	* emit-rtl.c (get_first_nonnote_insn): Return rtx_insn * instead of
	rtx.
	(get_last_nonnote_insn): Likewise.
	(next_nonnote_insn_bb): Take rtx_insn * instead of rtx.
	* resource.c (find_basic_block): Likewise.
	* rtl.h: Adjust.
	* rtlanal.c (keep_with_call_p): Take const rtx_insn * instead of
	const_rtx.

From-SVN: r214922

gcc/ChangeLog

+2014-09-04  Trevor Saunders  <tsaunders@mozilla.com>
+
+	* emit-rtl.c (get_first_nonnote_insn): Return rtx_insn * instead of
+	rtx.
+	(get_last_nonnote_insn): Likewise.
+	(next_nonnote_insn_bb): Take rtx_insn * instead of rtx.
+	* resource.c (find_basic_block): Likewise.
+	* rtl.h: Adjust.
+	* rtlanal.c (keep_with_call_p): Take const rtx_insn * instead of
+	const_rtx.
+
 2014-09-04  David Malcolm  <dmalcolm@redhat.com>
 
 	* genattr.c (main): Within the prototype of insn_latency written

gcc/emit-rtl.c

@@ -3141,7 +3141,7 @@ get_last_insn_anywhere (void)
 /* Return the first nonnote insn emitted in current sequence or current
    function.  This routine looks inside SEQUENCEs.  */
 
-rtx
+rtx_insn *
 get_first_nonnote_insn (void)
 {
   rtx_insn *insn = get_insns ();
@@ -3167,7 +3167,7 @@ get_first_nonnote_insn (void)
 /* Return the last nonnote insn emitted in current sequence or current
    function.  This routine looks inside SEQUENCEs.  */
 
-rtx
+rtx_insn *
 get_last_nonnote_insn (void)
 {
   rtx_insn *insn = get_last_insn ();
@@ -3267,10 +3267,8 @@ next_nonnote_insn (rtx uncast_insn)
    look inside SEQUENCEs.  */
 
 rtx_insn *
-next_nonnote_insn_bb (rtx uncast_insn)
+next_nonnote_insn_bb (rtx_insn *insn)
 {
-  rtx_insn *insn = safe_as_a <rtx_insn *> (uncast_insn);
-
   while (insn)
     {
       insn = NEXT_INSN (insn);

gcc/resource.c

@@ -78,7 +78,7 @@ static HARD_REG_SET current_live_regs;
 static HARD_REG_SET pending_dead_regs;
 
 static void update_live_status (rtx, const_rtx, void *);
-static int find_basic_block (rtx, int);
+static int find_basic_block (rtx_insn *, int);
 static rtx_insn *next_insn_no_annul (rtx_insn *);
 static rtx_insn *find_dead_or_set_registers (rtx_insn *, struct resources*,
 					     rtx *, int, struct resources,
@@ -132,7 +132,7 @@ update_live_status (rtx dest, const_rtx x, void *data ATTRIBUTE_UNUSED)
    correct.  */
 
 static int
-find_basic_block (rtx insn, int search_limit)
+find_basic_block (rtx_insn *insn, int search_limit)
 {
   /* Scan backwards to the previous BARRIER.  Then see if we can find a
      label that starts a basic block.  Return the basic block number.  */

gcc/rtl.h

@@ -2530,8 +2530,8 @@ extern rtx convert_memory_address_addr_space (enum machine_mode, rtx,
 	convert_memory_address_addr_space ((to_mode), (x), ADDR_SPACE_GENERIC)
 extern const char *get_insn_name (int);
 extern rtx_insn *get_last_insn_anywhere (void);
-extern rtx get_first_nonnote_insn (void);
-extern rtx get_last_nonnote_insn (void);
+extern rtx_insn *get_first_nonnote_insn (void);
+extern rtx_insn *get_last_nonnote_insn (void);
 extern void start_sequence (void);
 extern void push_to_sequence (rtx_insn *);
 extern void push_to_sequence2 (rtx_insn *, rtx_insn *);
@@ -2625,7 +2625,7 @@ extern rtx_insn *next_insn (rtx_insn *);
 extern rtx_insn *prev_nonnote_insn (rtx);
 extern rtx_insn *prev_nonnote_insn_bb (rtx);
 extern rtx_insn *next_nonnote_insn (rtx);
-extern rtx_insn *next_nonnote_insn_bb (rtx);
+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_nonnote_nondebug_insn (rtx);
@@ -2830,7 +2830,7 @@ extern void remove_node_from_expr_list (const_rtx, rtx_expr_list **);
 extern void remove_node_from_insn_list (const rtx_insn *, rtx_insn_list **);
 extern int loc_mentioned_in_p (rtx *, const_rtx);
 extern rtx_insn *find_first_parameter_load (rtx_insn *, rtx_insn *);
-extern bool keep_with_call_p (const_rtx);
+extern bool keep_with_call_p (const rtx_insn *);
 extern bool label_is_jump_target_p (const_rtx, const rtx_insn *);
 extern int insn_rtx_cost (rtx, bool);
 

gcc/rtlanal.c

@@ -3800,7 +3800,7 @@ find_first_parameter_load (rtx_insn *call_insn, rtx_insn *boundary)
    call instruction.  */
 
 bool
-keep_with_call_p (const_rtx insn)
+keep_with_call_p (const rtx_insn *insn)
 {
   rtx set;
 
@@ -3824,7 +3824,8 @@ keep_with_call_p (const_rtx insn)
 	  /* This CONST_CAST is okay because next_nonnote_insn just
 	     returns its argument and we assign it to a const_rtx
 	     variable.  */
-	  const rtx_insn *i2 = next_nonnote_insn (CONST_CAST_RTX (insn));
+	  const rtx_insn *i2
+	    = next_nonnote_insn (const_cast<rtx_insn *> (insn));
 	  if (i2 && keep_with_call_p (i2))
 	    return true;
 	}