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[PATCH 030/236] Convert various rtx to rtx_note *


gcc/
	* basic-block.h (create_basic_block_structure): Strengthen third
	param "bb_note" from rtx to rtx_note *.
	* rtl.h (emit_note_before): Strengthen return type from rtx to
	rtx_note *.
	(emit_note_after): Likewise.
	(emit_note): Likewise.
	(emit_note_copy): Likewise.  Also, strengthen param similarly.
	* function.h (struct rtl_data): Strengthen field
	"x_stack_check_probe_note" from rtx to rtx_note *.

	* cfgexpand.c (expand_gimple_basic_block): Strengthen local "note"
	from rtx to rtx_note *.
	* cfgrtl.c (create_basic_block_structure): Strengthen third param
	"bb_note" from rtx to rtx_note *.
	(duplicate_insn_chain): Likewise for local "last".  Add a checked cast
	when calling emit_note_copy.
	* emit-rtl.c (make_note_raw): Strengthen return type from rtx to
	rtx_note *.
	(emit_note_after): Likewise.
	(emit_note_before): Likewise.
	(emit_note_copy): Likewise.  Also, strengthen param similarly.
	(emit_note): Likewise.
	* except.c (convert_to_eh_region_ranges): Strengthen local "note"
	from rtx to rtx_note *.
	* final.c (change_scope): Likewise.
	(reemit_insn_block_notes): Likewise, for both locals named "note".
	Also, strengthen local "insn" from rtx to rtx_insn *.
	* haifa-sched.c (sched_extend_bb): Strengthen local "note" from
	rtx to rtx_note *.
	* reg-stack.c (compensate_edge): Likewise for local "after". Also,
	strengthen local "seq" from rtx to rtx_insn *.
	* reload1.c (reload_as_needed): Strengthen local "marker" from rtx
	to rtx_note *.
	* sel-sched-ir.c (bb_note_pool): Strengthen from rtx_vec_t to
	vec<rtx_note *>.
	(get_bb_note_from_pool): Strengthen return type from rtx to
	rtx_note *.
	(sel_create_basic_block): Strengthen local "new_bb_note" from
	insn_t to rtx_note *.
	* var-tracking.c (emit_note_insn_var_location): Strengthen local
	"note" from rtx to rtx_note *.
	(emit_notes_in_bb): Likewise.
---
 gcc/basic-block.h  |  3 ++-
 gcc/cfgexpand.c    |  4 ++--
 gcc/cfgrtl.c       |  8 +++++---
 gcc/emit-rtl.c     | 22 +++++++++++-----------
 gcc/except.c       |  3 ++-
 gcc/final.c        |  7 ++++---
 gcc/function.h     |  2 +-
 gcc/haifa-sched.c  |  2 +-
 gcc/reg-stack.c    |  3 ++-
 gcc/reload1.c      |  3 ++-
 gcc/rtl.h          |  8 ++++----
 gcc/sel-sched-ir.c | 10 +++++-----
 gcc/var-tracking.c |  6 ++++--
 13 files changed, 45 insertions(+), 36 deletions(-)

diff --git a/gcc/basic-block.h b/gcc/basic-block.h
index 87094c6..03dbdbc 100644
--- a/gcc/basic-block.h
+++ b/gcc/basic-block.h
@@ -412,7 +412,8 @@ extern void remove_edge_raw (edge);
 extern void redirect_edge_succ (edge, basic_block);
 extern edge redirect_edge_succ_nodup (edge, basic_block);
 extern void redirect_edge_pred (edge, basic_block);
-extern basic_block create_basic_block_structure (rtx, rtx, rtx, basic_block);
+extern basic_block create_basic_block_structure (rtx, rtx, rtx_note *,
+						 basic_block);
 extern void clear_bb_flags (void);
 extern void dump_bb_info (FILE *, basic_block, int, int, bool, bool);
 extern void dump_edge_info (FILE *, edge, int, int);
diff --git a/gcc/cfgexpand.c b/gcc/cfgexpand.c
index 643bb19..d2dc924 100644
--- a/gcc/cfgexpand.c
+++ b/gcc/cfgexpand.c
@@ -4878,7 +4878,7 @@ expand_gimple_basic_block (basic_block bb, bool disable_tail_calls)
   gimple_stmt_iterator gsi;
   gimple_seq stmts;
   gimple stmt = NULL;
-  rtx note;
+  rtx_note *note;
   rtx_insn *last;
   edge e;
   edge_iterator ei;
@@ -4951,7 +4951,7 @@ expand_gimple_basic_block (basic_block bb, bool disable_tail_calls)
       maybe_dump_rtl_for_gimple_stmt (stmt, last);
     }
   else
-    note = SET_BB_HEAD (bb) = emit_note (NOTE_INSN_BASIC_BLOCK);
+    SET_BB_HEAD (bb) = note = emit_note (NOTE_INSN_BASIC_BLOCK);
 
   NOTE_BASIC_BLOCK (note) = bb;
 
diff --git a/gcc/cfgrtl.c b/gcc/cfgrtl.c
index ac3bc87..2a490f9 100644
--- a/gcc/cfgrtl.c
+++ b/gcc/cfgrtl.c
@@ -272,7 +272,8 @@ delete_insn_chain (rtx start, rtx finish, bool clear_bb)
    AFTER is the basic block we should be put after.  */
 
 basic_block
-create_basic_block_structure (rtx head, rtx end, rtx bb_note, basic_block after)
+create_basic_block_structure (rtx head, rtx end, rtx_note *bb_note,
+			      basic_block after)
 {
   basic_block bb;
 
@@ -4085,7 +4086,8 @@ cfg_layout_can_duplicate_bb_p (const_basic_block bb)
 rtx
 duplicate_insn_chain (rtx from, rtx to)
 {
-  rtx insn, next, last, copy;
+  rtx insn, next, copy;
+  rtx_note *last;
 
   /* Avoid updating of boundaries of previous basic block.  The
      note will get removed from insn stream in fixup.  */
@@ -4153,7 +4155,7 @@ duplicate_insn_chain (rtx from, rtx to)
 	      break;
 
 	    case NOTE_INSN_EPILOGUE_BEG:
-	      emit_note_copy (insn);
+	      emit_note_copy (as_a <rtx_note *> (insn));
 	      break;
 
 	    default:
diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c
index bbc7fb7..afbb6a0 100644
--- a/gcc/emit-rtl.c
+++ b/gcc/emit-rtl.c
@@ -3839,7 +3839,7 @@ make_call_insn_raw (rtx pattern)
 
 /* Like `make_insn_raw' but make a NOTE instead of an insn.  */
 
-static rtx
+static rtx_note *
 make_note_raw (enum insn_note subtype)
 {
   /* Some notes are never created this way at all.  These notes are
@@ -3847,7 +3847,7 @@ make_note_raw (enum insn_note subtype)
   gcc_assert (subtype != NOTE_INSN_DELETED_LABEL
 	      && subtype != NOTE_INSN_DELETED_DEBUG_LABEL);
 
-  rtx note = rtx_alloc (NOTE);
+  rtx_note *note = as_a <rtx_note *> (rtx_alloc (NOTE));
   INSN_UID (note) = cur_insn_uid++;
   NOTE_KIND (note) = subtype;
   BLOCK_FOR_INSN (note) = NULL;
@@ -4544,10 +4544,10 @@ note_outside_basic_block_p (enum insn_note subtype, bool on_bb_boundary_p)
 
 /* Emit a note of subtype SUBTYPE after the insn AFTER.  */
 
-rtx
+rtx_note *
 emit_note_after (enum insn_note subtype, rtx after)
 {
-  rtx note = make_note_raw (subtype);
+  rtx_note *note = make_note_raw (subtype);
   basic_block bb = BARRIER_P (after) ? NULL : BLOCK_FOR_INSN (after);
   bool on_bb_boundary_p = (bb != NULL && BB_END (bb) == after);
 
@@ -4560,10 +4560,10 @@ emit_note_after (enum insn_note subtype, rtx after)
 
 /* Emit a note of subtype SUBTYPE before the insn BEFORE.  */
 
-rtx
+rtx_note *
 emit_note_before (enum insn_note subtype, rtx before)
 {
-  rtx note = make_note_raw (subtype);
+  rtx_note *note = make_note_raw (subtype);
   basic_block bb = BARRIER_P (before) ? NULL : BLOCK_FOR_INSN (before);
   bool on_bb_boundary_p = (bb != NULL && BB_HEAD (bb) == before);
 
@@ -5010,11 +5010,11 @@ emit_barrier (void)
 
 /* Emit a copy of note ORIG.  */
 
-rtx
-emit_note_copy (rtx orig)
+rtx_note *
+emit_note_copy (rtx_note *orig)
 {
   enum insn_note kind = (enum insn_note) NOTE_KIND (orig);
-  rtx note = make_note_raw (kind);
+  rtx_note *note = make_note_raw (kind);
   NOTE_DATA (note) = NOTE_DATA (orig);
   add_insn (note);
   return note;
@@ -5023,10 +5023,10 @@ emit_note_copy (rtx orig)
 /* Make an insn of code NOTE or type NOTE_NO
    and add it to the end of the doubly-linked list.  */
 
-rtx
+rtx_note *
 emit_note (enum insn_note kind)
 {
-  rtx note = make_note_raw (kind);
+  rtx_note *note = make_note_raw (kind);
   add_insn (note);
   return note;
 }
diff --git a/gcc/except.c b/gcc/except.c
index fe1de06..ec712a9 100644
--- a/gcc/except.c
+++ b/gcc/except.c
@@ -2479,7 +2479,8 @@ add_call_site (rtx landing_pad, int action, int section)
 static unsigned int
 convert_to_eh_region_ranges (void)
 {
-  rtx insn, iter, note;
+  rtx insn, iter;
+  rtx_note *note;
   action_hash_type ar_hash;
   int last_action = -3;
   rtx last_action_insn = NULL_RTX;
diff --git a/gcc/final.c b/gcc/final.c
index c6339ae..38f6e0c 100644
--- a/gcc/final.c
+++ b/gcc/final.c
@@ -1631,7 +1631,7 @@ change_scope (rtx orig_insn, tree s1, tree s2)
   s = s1;
   while (s != com)
     {
-      rtx note = emit_note_before (NOTE_INSN_BLOCK_END, insn);
+      rtx_note *note = emit_note_before (NOTE_INSN_BLOCK_END, insn);
       NOTE_BLOCK (note) = s;
       s = BLOCK_SUPERCONTEXT (s);
     }
@@ -1653,7 +1653,8 @@ static void
 reemit_insn_block_notes (void)
 {
   tree cur_block = DECL_INITIAL (cfun->decl);
-  rtx insn, note;
+  rtx_insn *insn;
+  rtx_note *note;
 
   insn = get_insns ();
   for (; insn; insn = NEXT_INSN (insn))
@@ -1666,7 +1667,7 @@ reemit_insn_block_notes (void)
           for (tree s = cur_block; s != DECL_INITIAL (cfun->decl);
                s = BLOCK_SUPERCONTEXT (s))
             {
-              rtx note = emit_note_before (NOTE_INSN_BLOCK_END, insn);
+              rtx_note *note = emit_note_before (NOTE_INSN_BLOCK_END, insn);
               NOTE_BLOCK (note) = s;
               note = emit_note_after (NOTE_INSN_BLOCK_BEG, insn);
               NOTE_BLOCK (note) = s;
diff --git a/gcc/function.h b/gcc/function.h
index 0367225..575de1b 100644
--- a/gcc/function.h
+++ b/gcc/function.h
@@ -286,7 +286,7 @@ struct GTY(()) rtl_data {
   struct frame_space *frame_space_list;
 
   /* Place after which to insert the tail_recursion_label if we need one.  */
-  rtx x_stack_check_probe_note;
+  rtx_note *x_stack_check_probe_note;
 
   /* Location at which to save the argument pointer if it will need to be
      referenced.  There are two cases where this is done: if nonlocal gotos
diff --git a/gcc/haifa-sched.c b/gcc/haifa-sched.c
index caee1b8..04a3576 100644
--- a/gcc/haifa-sched.c
+++ b/gcc/haifa-sched.c
@@ -7549,7 +7549,7 @@ sched_extend_bb (void)
 	  /* Don't emit a NOTE if it would end up before a BARRIER.  */
 	  && !BARRIER_P (NEXT_INSN (end))))
     {
-      rtx note = emit_note_after (NOTE_INSN_DELETED, end);
+      rtx_note *note = emit_note_after (NOTE_INSN_DELETED, end);
       /* Make note appear outside BB.  */
       set_block_for_insn (note, NULL);
       SET_BB_END (EXIT_BLOCK_PTR_FOR_FN (cfun)->prev_bb) = end;
diff --git a/gcc/reg-stack.c b/gcc/reg-stack.c
index e0d5d70..94de021 100644
--- a/gcc/reg-stack.c
+++ b/gcc/reg-stack.c
@@ -2815,7 +2815,8 @@ compensate_edge (edge e)
     }
   else
     {
-      rtx seq, after;
+      rtx_insn *seq;
+      rtx_note *after;
 
       current_block = NULL;
       start_sequence ();
diff --git a/gcc/reload1.c b/gcc/reload1.c
index 9daafa4..940fa67 100644
--- a/gcc/reload1.c
+++ b/gcc/reload1.c
@@ -4586,7 +4586,8 @@ reload_as_needed (int live_known)
 #if defined (AUTO_INC_DEC)
   int i;
 #endif
-  rtx x, marker;
+  rtx x;
+  rtx_note *marker;
 
   memset (spill_reg_rtx, 0, sizeof spill_reg_rtx);
   memset (spill_reg_store, 0, sizeof spill_reg_store);
diff --git a/gcc/rtl.h b/gcc/rtl.h
index 51e8a45..cca0e20 100644
--- a/gcc/rtl.h
+++ b/gcc/rtl.h
@@ -2371,7 +2371,7 @@ extern rtx emit_debug_insn_before_noloc (rtx, rtx);
 extern rtx emit_debug_insn_before_setloc (rtx, rtx, int);
 extern rtx emit_barrier_before (rtx);
 extern rtx emit_label_before (rtx, rtx);
-extern rtx emit_note_before (enum insn_note, rtx);
+extern rtx_note *emit_note_before (enum insn_note, rtx);
 extern rtx emit_insn_after (rtx, rtx);
 extern rtx emit_insn_after_noloc (rtx, rtx, basic_block);
 extern rtx emit_insn_after_setloc (rtx, rtx, int);
@@ -2386,7 +2386,7 @@ extern rtx emit_debug_insn_after_noloc (rtx, rtx);
 extern rtx emit_debug_insn_after_setloc (rtx, rtx, int);
 extern rtx emit_barrier_after (rtx);
 extern rtx emit_label_after (rtx, rtx);
-extern rtx emit_note_after (enum insn_note, rtx);
+extern rtx_note *emit_note_after (enum insn_note, rtx);
 extern rtx emit_insn (rtx);
 extern rtx emit_debug_insn (rtx);
 extern rtx emit_jump_insn (rtx);
@@ -2394,8 +2394,8 @@ extern rtx emit_call_insn (rtx);
 extern rtx emit_label (rtx);
 extern rtx emit_jump_table_data (rtx);
 extern rtx emit_barrier (void);
-extern rtx emit_note (enum insn_note);
-extern rtx emit_note_copy (rtx);
+extern rtx_note *emit_note (enum insn_note);
+extern rtx_note *emit_note_copy (rtx_note *);
 extern rtx gen_clobber (rtx);
 extern rtx emit_clobber (rtx);
 extern rtx gen_use (rtx);
diff --git a/gcc/sel-sched-ir.c b/gcc/sel-sched-ir.c
index 01e1dd3..d7352b7 100644
--- a/gcc/sel-sched-ir.c
+++ b/gcc/sel-sched-ir.c
@@ -126,7 +126,7 @@ static struct
 } nop_pool = { NULL, 0, 0 };
 
 /* The pool for basic block notes.  */
-static rtx_vec_t bb_note_pool;
+static vec<rtx_note *> bb_note_pool;
 
 /* A NOP pattern used to emit placeholder insns.  */
 rtx nop_pattern = NULL_RTX;
@@ -4981,14 +4981,14 @@ return_bb_to_pool (basic_block bb)
 }
 
 /* Get a bb_note from pool or return NULL_RTX if pool is empty.  */
-static rtx
+static rtx_note *
 get_bb_note_from_pool (void)
 {
   if (bb_note_pool.is_empty ())
-    return NULL_RTX;
+    return NULL;
   else
     {
-      rtx note = bb_note_pool.pop ();
+      rtx_note *note = bb_note_pool.pop ();
 
       SET_PREV_INSN (note) = NULL_RTX;
       SET_NEXT_INSN (note) = NULL_RTX;
@@ -5346,7 +5346,7 @@ static basic_block
 sel_create_basic_block (void *headp, void *endp, basic_block after)
 {
   basic_block new_bb;
-  insn_t new_bb_note;
+  rtx_note *new_bb_note;
 
   gcc_assert (flag_sel_sched_pipelining_outer_loops
               || !last_added_blocks.exists ());
diff --git a/gcc/var-tracking.c b/gcc/var-tracking.c
index 9e71165..ed8abdc 100644
--- a/gcc/var-tracking.c
+++ b/gcc/var-tracking.c
@@ -8588,7 +8588,8 @@ emit_note_insn_var_location (variable_def **varp, emit_note_data *data)
   rtx insn = data->insn;
   enum emit_note_where where = data->where;
   variable_table_type vars = data->vars;
-  rtx note, note_vl;
+  rtx_note *note;
+  rtx note_vl;
   int i, j, n_var_parts;
   bool complete;
   enum var_init_status initialized = VAR_INIT_STATUS_UNINITIALIZED;
@@ -9134,7 +9135,8 @@ emit_notes_in_bb (basic_block bb, dataflow_set *set)
 	    dataflow_set_clear_at_call (set);
 	    emit_notes_for_changes (insn, EMIT_NOTE_AFTER_CALL_INSN, set->vars);
 	    {
-	      rtx arguments = mo->u.loc, *p = &arguments, note;
+	      rtx arguments = mo->u.loc, *p = &arguments;
+	      rtx_note *note;
 	      while (*p)
 		{
 		  XEXP (XEXP (*p, 0), 1)
-- 
1.8.5.3


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