* c-dump.h: New file.

From-SVN: r37368

gcc/ChangeLog

+2000-11-10  Mark Mitchell  <mark@codesourcery.com>
+
+	* c-dump.h: New file.
+
 2000-11-10  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 
 	* alpha.c (check_float_value): Use memcpy, not bcopy.

gcc/c-dump.h

+/* Tree-dumping functionality for intermediate representation.
+   Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+   Written by Mark Mitchell <mark@codesourcery.com>
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* Flags used with queue functions.  */
+#define DUMP_NONE     0
+#define DUMP_BINFO    1
+
+/* Information about a node to be dumped.  */
+
+typedef struct dump_node_info
+{
+  /* The index for the node.  */
+  unsigned int index;
+  /* Nonzero if the node is a binfo.  */
+  unsigned int binfo_p : 1;
+} *dump_node_info_p;
+
+/* A dump_queue is a link in the queue of things to be dumped.  */
+
+typedef struct dump_queue
+{
+  /* The queued tree node.  */
+  splay_tree_node node;
+  /* The next node in the queue.  */
+  struct dump_queue *next;
+} *dump_queue_p;
+
+/* A dump_info gives information about how we should perform the dump 
+   and about the current state of the dump.  */
+
+struct dump_info
+{
+  /* The stream on which to dump the information.  */
+  FILE *stream;
+  /* The next unused node index.  */
+  unsigned int index;
+  /* The next column.  */
+  unsigned int column;
+  /* The first node in the queue of nodes to be written out.  */
+  dump_queue_p queue;
+  /* The last node in the queue.  */
+  dump_queue_p queue_end;
+  /* Free queue nodes.  */
+  dump_queue_p free_list;
+  /* The tree nodes which we have already written out.  The 
+     keys are the addresses of the nodes; the values are the integer
+     indices we assigned them.  */
+  splay_tree nodes;
+};
+
+/* Dump the CHILD and its children.  */
+#define dump_child(field, child) \
+  queue_and_dump_index (di, field, child, DUMP_NONE)
+
+extern void dump_int 
+  PARAMS ((dump_info_p, const char *, int));
+extern void dump_string 
+  PARAMS ((dump_info_p, const char *));
+extern void dump_stmt 
+  PARAMS ((dump_info_p, tree));
+extern void dump_next_stmt 
+  PARAMS ((dump_info_p, tree));
+extern void queue_and_dump_index 
+  PARAMS ((dump_info_p, const char *, tree, int));
+extern void queue_and_dump_type 
+  PARAMS ((dump_info_p, tree));