remove #ifdef HAVE_CONFIG_Hs
[libfirm] / ir / stat / firmstat.c
index 5785708..853a8b5 100644 (file)
 /*
- * Project:     libFIRM
- * File name:   ir/ir/firmstat.c
- * Purpose:     Statistics for Firm.
- * Author:      Michael Beck
- * Created:
- * CVS-ID:      $Id$
- * Copyright:   (c) 2004 Universität Karlsruhe
- * Licence:     This file protected by GPL -  GNU GENERAL PUBLIC LICENSE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
+ * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
+ *
+ * This file is part of libFirm.
+ *
+ * This file may be distributed and/or modified under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation and appearing in the file LICENSE.GPL included in the
+ * packaging of this file.
+ *
+ * Licensees holding valid libFirm Professional Edition licenses may use
+ * this file in accordance with the libFirm Commercial License.
+ * Agreement provided with the Software.
+ *
+ * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+ * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.
+ */
 
-# include <string.h>
+/**
+ * @file
+ * @brief   Statistics for Firm.
+ * @author  Michael Beck
+ * @version $Id$
+ */
+#include "config.h"
+
+#ifdef FIRM_STATISTICS
 
 #include <stdio.h>
-#include <stdlib.h>
 
-#ifdef FIRM_STATISTICS
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+#ifdef HAVE_STRING_H
+# include <string.h>
+#endif
 
-#include "firmstat.h"
-# include "irop_t.h"
-# include "irnode_t.h"
-# include "irgraph_t.h"
-# include "pset.h"
-# include "irprog.h"
-# include "irgwalk.h"
-# include "pattern.h"
-# include "counter.h"
+#include "irouts.h"
+#include "irdump.h"
+#include "hashptr.h"
+#include "firmstat_t.h"
+#include "pattern.h"
+#include "dags.h"
+#include "stat_dmp.h"
+#include "xmalloc.h"
+#include "irhooks.h"
 
 /*
- * just be make some things clear :-), the
- * poor man "generics"
+ * need this to be static:
+ * Special pseudo Opcodes that we need to count some interesting cases
  */
-#define HASH_MAP(type) hmap_##type
-
-typedef pset hmap_node_entry_t;
-typedef pset hmap_graph_entry_t;
-typedef pset hmap_opt_entry_t;
-typedef pset hmap_block_entry_t;
-typedef pset hmap_ir_op;
 
-/*
- * An entry for ir_nodes, used in ir_graph statistics.
+/**
+ * The Phi0, a node that is created during SSA construction
  */
-typedef struct _node_entry_t {
-  counter_t   cnt_alive;               /**< amount of nodes in this entry */
-  counter_t   new_node;                        /**< amount of new nodes for this entry */
-  counter_t   into_Id;                 /**< amount of nodes that turned into Id's for this entry */
-  const ir_op *op;                     /**< the op for this entry */
-} node_entry_t;
+static ir_op _op_Phi0;
 
-/*
- * An entry for ir_graphs
+/** The PhiM, just to count memory Phi's. */
+static ir_op _op_PhiM;
+
+/** The Mul by Const node. */
+static ir_op _op_MulC;
+
+/** The Div by Const node. */
+static ir_op _op_DivC;
+
+/** The Div by Const node. */
+static ir_op _op_ModC;
+
+/** The Div by Const node. */
+static ir_op _op_DivModC;
+
+/** The Quot by Const node. */
+static ir_op _op_QuotC;
+
+/** The memory Proj node. */
+static ir_op _op_ProjM;
+
+/** A Sel of a Sel */
+static ir_op _op_SelSel;
+
+/** A Sel of a Sel of a Sel */
+static ir_op _op_SelSelSel;
+
+/* ---------------------------------------------------------------------------------- */
+
+/** Marks the begin of a statistic (hook) function. */
+#define STAT_ENTER             ++status->recursive
+
+/** Marks the end of a statistic (hook) functions. */
+#define STAT_LEAVE             --status->recursive
+
+/** Allows to enter a statistic function only when we are not already in a hook. */
+#define STAT_ENTER_SINGLE      do { if (status->recursive > 0) return; ++status->recursive; } while (0)
+
+/**
+ * global status
  */
-typedef struct _graph_entry_t {
-  HASH_MAP(node_entry_t)  *opcode_hash;                        /**< hash map containing the opcode counter */
-  HASH_MAP(block_entry_t) *block_hash;                 /**< hash map countaining the block counter */
-  counter_t               cnt_walked;                  /**< walker walked over the graph */
-  counter_t               cnt_walked_blocks;           /**< walker walked over the graph blocks */
-  counter_t               cnt_was_inlined;             /**< number of times other graph were inlined */
-  counter_t               cnt_got_inlined;             /**< number of times this graph was inlined */
-  counter_t               cnt_edges;                   /**< number of DF edges in this graph */
-  HASH_MAP(opt_entry_t)   *opt_hash[STAT_OPT_MAX];     /**< hash maps containing opcode counter for optimizations */
-  ir_graph                *irg;                                /**< the graph of this object */
-  entity                  *ent;                                /**< the entity of this graph if one exists */
-  int                     deleted;                     /**< set if this irg was deleted */
-} graph_entry_t;
+static const unsigned status_disable = 0;
+static stat_info_t *status = (stat_info_t *)&status_disable;
 
 /**
- * An entry for optimized ir_nodes
+ * Compare two elements of the opcode hash.
  */
-typedef struct _opt_entry_t {
-  counter_t   count;                   /**< optimization counter */
-  const ir_op *op;                     /**< the op for this entry */
-} opt_entry_t;
+static int opcode_cmp(const void *elt, const void *key) {
+       const node_entry_t *e1 = elt;
+       const node_entry_t *e2 = key;
+
+       return e1->op->code - e2->op->code;
+}  /* opcode_cmp */
 
 /**
- * An entry for a block in a ir-graph
+ * Compare two elements of the graph hash.
  */
-typedef struct _block_entry_t {
-  counter_t  cnt_nodes;                        /**< the counter of nodes in this block */
-  counter_t  cnt_edges;                        /**< the counter of edges in this block */
-  counter_t  cnt_in_edges;             /**< the counter of edges incoming from other blocks to this block */
-  counter_t  cnt_out_edges;            /**< the counter of edges outgoing from this block to other blocks */
-  long       block_nr;                 /**< block nr */
-} block_entry_t;
+static int graph_cmp(const void *elt, const void *key) {
+       const graph_entry_t *e1 = elt;
+       const graph_entry_t *e2 = key;
 
-/** forward */
-typedef struct _dumper_t dumper_t;
+       return e1->irg != e2->irg;
+}  /* graph_cmp */
 
 /**
- * handler for dumping an IRG
- *
- * @param dmp   the dumper
- * @param entry the IR-graph hash map entry
+ * Compare two elements of the optimization hash.
  */
-typedef void (*dump_graph_FUNC)(dumper_t *dmp, graph_entry_t *entry);
+static int opt_cmp(const void *elt, const void *key) {
+       const opt_entry_t *e1 = elt;
+       const opt_entry_t *e2 = key;
+
+       return e1->op->code != e2->op->code;
+}  /* opt_cmp */
 
 /**
- * handler for dumper init
- *
- * @param dmp   the dumper
- * @param name  name of the file to dump to
+ * Compare two elements of the block/extbb hash.
  */
-typedef void (*dump_init_FUNC)(dumper_t *dmp, const char *name);
+static int block_cmp(const void *elt, const void *key) {
+       const block_entry_t *e1 = elt;
+       const block_entry_t *e2 = key;
+
+       /* it's enough to compare the block number */
+       return e1->block_nr != e2->block_nr;
+}  /* block_cmp */
 
 /**
- * handler for dumper finish
- *
- * @param dmp   the dumper
+ * Compare two elements of the be_block hash.
  */
-typedef void (*dump_finish_FUNC)(dumper_t *dmp);
+static int be_block_cmp(const void *elt, const void *key) {
+       const be_block_entry_t *e1 = elt;
+       const be_block_entry_t *e2 = key;
 
+       return e1->block_nr != e2->block_nr;
+}  /* be_block_cmp */
 
 /**
- * a dumper description
+ * Compare two elements of reg pressure hash.
  */
-struct _dumper_t {
-  dump_graph_FUNC         dump_graph;          /**< handler for dumping an irg */
-  dump_init_FUNC          init;                        /**< handler for init */
-  dump_finish_FUNC        finish;              /**< handler for finish */
-  FILE                    *f;                  /**< the file to dump to */
-  dumper_t                *next;               /**< link to the next dumper */
-};
+static int reg_pressure_cmp(const void *elt, const void *key) {
+       const reg_pressure_entry_t *e1 = elt;
+       const reg_pressure_entry_t *e2 = key;
+
+       return e1->class_name != e2->class_name;
+}  /* reg_pressure_cmp */
 
 /**
- * statistics info
+ * Compare two elements of the perm_stat hash.
  */
-typedef struct _statistic_info_t {
-  struct obstack          cnts;                        /**< obstack containing the counters */
-  HASH_MAP(graph_entry_t) *irg_hash;           /**< hash map containing the counter for irgs */
-  HASH_MAP(ir_op)         *ir_op_hash;         /**< hash map containing all ir_ops (accessible by op_codes) */
-  int                     recursive;           /**< flag for detecting recursive hook calls */
-  int                     in_dead_node_elim;   /**< set, if dead node elimination runs */
-  ir_op                   *op_Phi0;            /**< needed pseudo op */
-  ir_op                   *op_PhiM;            /**< needed pseudo op */
-  dumper_t                *dumper;             /**< list of dumper */
-  int                     enable;              /**< if set, statistic is enabled */
-} stat_info_t;
+static int perm_stat_cmp(const void *elt, const void *key) {
+       const perm_stat_entry_t *e1 = elt;
+       const perm_stat_entry_t *e2 = key;
+
+       return e1->perm != e2->perm;
+}  /* perm_stat_cmp */
 
 /**
- * names of the optimizations
+ * Compare two elements of the perm_class hash.
  */
-static const char *opt_names[] = {
-  "straightening optimization",
-  "if simplification",
-  "algebraic simplification",
-  "Phi optmization",
-  "Write-After-Write optimization",
-  "Write-After-Read optimization",
-  "Read-After-Write optimization",
-  "Tuple optimization",
-  "ID optimization",
-  "Constant evaluation",
-  "Lowered",
-};
+static int perm_class_cmp(const void *elt, const void *key) {
+       const perm_class_entry_t *e1 = elt;
+       const perm_class_entry_t *e2 = key;
+
+       return e1->class_name != e2->class_name;
+}  /* perm_class_cmp */
 
 /**
- * need this to be static
+ * Compare two elements of the ir_op hash.
  */
-static ir_op _op_Phi0, _op_PhiM;
+static int opcode_cmp_2(const void *elt, const void *key) {
+       const ir_op *e1 = elt;
+       const ir_op *e2 = key;
 
-/* ---------------------------------------------------------------------------------- */
+       return e1->code != e2->code;
+}  /* opcode_cmp_2 */
 
-#define STAT_ENTER             ++status->recursive
-#define STAT_LEAVE             --status->recursive
-#define STAT_ENTER_SINGLE      do { if (status->recursive > 0) return; ++status->recursive; } while (0)
+/**
+ * Compare two elements of the address_mark set.
+ */
+static int address_mark_cmp(const void *elt, const void *key, size_t size) {
+       const address_mark_entry_t *e1 = elt;
+       const address_mark_entry_t *e2 = key;
+       (void) size;
+
+       /* compare only the nodes, the rest is used as data container */
+       return e1->node != e2->node;
+}  /* address_mark_cmp */
 
 /**
- * global status
+ * Clear all counter in a node_entry_t.
  */
-static stat_info_t _status, *status = &_status;
+static void opcode_clear_entry(node_entry_t *elem) {
+       cnt_clr(&elem->cnt_alive);
+       cnt_clr(&elem->new_node);
+       cnt_clr(&elem->into_Id);
+}  /* opcode_clear_entry */
 
 /**
- * compare two elements of the opcode hash
+ * Returns the associates node_entry_t for an ir_op
+ *
+ * @param op    the IR operation
+ * @param hmap  a hash map containing ir_op* -> node_entry_t*
  */
-static int opcode_cmp(const void *elt, const void *key)
-{
-  const node_entry_t *e1 = elt;
-  const node_entry_t *e2 = key;
+static node_entry_t *opcode_get_entry(const ir_op *op, hmap_node_entry_t *hmap) {
+       node_entry_t key;
+       node_entry_t *elem;
 
-  return e1->op->code - e2->op->code;
-}
+       key.op = op;
+
+       elem = pset_find(hmap, &key, op->code);
+       if (elem)
+               return elem;
+
+       elem = obstack_alloc(&status->cnts, sizeof(*elem));
+       memset(elem, 0, sizeof(*elem));
+
+       /* clear counter */
+       opcode_clear_entry(elem);
+
+       elem->op = op;
+
+       return pset_insert(hmap, elem, op->code);
+}  /* opcode_get_entry */
 
 /**
- * compare two elements of the graph hash
+ * Returns the associates ir_op for an opcode
+ *
+ * @param code  the IR opcode
+ * @param hmap  the hash map containing opcode -> ir_op*
  */
-static int graph_cmp(const void *elt, const void *key)
-{
-  const graph_entry_t *e1 = elt;
-  const graph_entry_t *e2 = key;
+static ir_op *opcode_find_entry(ir_opcode code, hmap_ir_op *hmap) {
+       ir_op key;
 
-  return e1->irg != e2->irg;
-}
+       key.code = code;
+       return pset_find(hmap, &key, code);
+}  /* opcode_find_entry */
 
 /**
- * compare two elements of the optimization hash
+ * Clears all counter in a graph_entry_t.
+ *
+ * @param elem  the graph entry
+ * @param all   if non-zero, clears all counters, else leave accumulated ones
  */
-static int opt_cmp(const void *elt, const void *key)
-{
-  const opt_entry_t *e1 = elt;
-  const opt_entry_t *e2 = key;
+static void graph_clear_entry(graph_entry_t *elem, int all) {
+       int i;
 
-  return e1->op->code != e2->op->code;
-}
+       /* clear accumulated / non-accumulated counter */
+       for (i = all ? 0 : _gcnt_non_acc; i < _gcnt_last; ++i) {
+               cnt_clr(&elem->cnt[i]);
+       }  /* for */
+
+       if (elem->block_hash) {
+               del_pset(elem->block_hash);
+               elem->block_hash = NULL;
+       }  /* if */
+
+       if (elem->extbb_hash) {
+               del_pset(elem->extbb_hash);
+               elem->extbb_hash = NULL;
+       }  /* if */
+
+       obstack_free(&elem->recalc_cnts, NULL);
+       obstack_init(&elem->recalc_cnts);
+}  /* graph_clear_entry */
 
 /**
- * compare two elements of the block hash
+ * Returns the associated graph_entry_t for an IR graph.
+ *
+ * @param irg   the IR graph
+ * @param hmap  the hash map containing ir_graph* -> graph_entry_t*
  */
-static int block_cmp(const void *elt, const void *key)
+static graph_entry_t *graph_get_entry(ir_graph *irg, hmap_graph_entry_t *hmap)
 {
-  const block_entry_t *e1 = elt;
-  const block_entry_t *e2 = key;
+       graph_entry_t key;
+       graph_entry_t *elem;
+       size_t i;
 
-  return e1->block_nr != e2->block_nr;
-}
+       key.irg = irg;
+
+       elem = pset_find(hmap, &key, HASH_PTR(irg));
+
+       if (elem) {
+               /* create hash map backend block information */
+               if (! elem->be_block_hash)
+                       elem->be_block_hash = new_pset(be_block_cmp, 5);
+
+               return elem;
+       }  /* if */
+
+       /* allocate a new one */
+       elem = obstack_alloc(&status->cnts, sizeof(*elem));
+       memset(elem, 0, sizeof(*elem));
+       obstack_init(&elem->recalc_cnts);
+
+       /* clear counter */
+       graph_clear_entry(elem, 1);
+
+       /* new hash table for opcodes here  */
+       elem->opcode_hash   = new_pset(opcode_cmp, 5);
+       elem->address_mark  = new_set(address_mark_cmp, 5);
+       elem->irg           = irg;
+
+       /* these hash tables are created on demand */
+       elem->block_hash = NULL;
+       elem->extbb_hash = NULL;
+
+       for (i = 0; i < sizeof(elem->opt_hash)/sizeof(elem->opt_hash[0]); ++i)
+               elem->opt_hash[i] = new_pset(opt_cmp, 4);
+
+       return pset_insert(hmap, elem, HASH_PTR(irg));
+}  /* graph_get_entry */
 
 /**
- * compare two elements of the ir_op hash
+ * Clear all counter in an opt_entry_t.
  */
-static int opcode_cmp_2(const void *elt, const void *key)
-{
-  const ir_op *e1 = elt;
-  const ir_op *e2 = key;
-
-  return e1->code != e2->code;
-}
+static void opt_clear_entry(opt_entry_t *elem) {
+       cnt_clr(&elem->count);
+}  /* opt_clear_entry */
 
 /**
- * Returns the associates node_entry_t for an ir_op
+ * Returns the associated opt_entry_t for an IR operation.
+ *
+ * @param op    the IR operation
+ * @param hmap  the hash map containing ir_op* -> opt_entry_t*
  */
-static node_entry_t *opcode_get_entry(const ir_op *op, pset *set)
+static opt_entry_t *opt_get_entry(const ir_op *op, hmap_opt_entry_t *hmap)
 {
-  node_entry_t key;
-  node_entry_t *elem;
+       opt_entry_t key;
+       opt_entry_t *elem;
 
-  key.op = op;
+       key.op = op;
 
-  elem = pset_find(set, &key, op->code);
-  if (elem)
-    return elem;
+       elem = pset_find(hmap, &key, op->code);
+       if (elem)
+               return elem;
 
-  elem = obstack_alloc(&status->cnts, sizeof(*elem));
+       elem = obstack_alloc(&status->cnts, sizeof(*elem));
+       memset(elem, 0, sizeof(*elem));
 
-  /* clear counter */
-  cnt_clr(&elem->cnt_alive);
-  cnt_clr(&elem->new_node);
-  cnt_clr(&elem->into_Id);
+       /* clear new counter */
+       opt_clear_entry(elem);
 
-  elem->op = op;
+       elem->op = op;
 
-  return pset_insert(set, elem, op->code);
-}
+       return pset_insert(hmap, elem, op->code);
+}  /* opt_get_entry */
 
 /**
- * Returns the associates ir_op for an opcode
+ * clears all counter in a block_entry_t
+ */
+static void block_clear_entry(block_entry_t *elem) {
+       int i;
+
+       for (i = 0; i < _bcnt_last; ++i)
+               cnt_clr(&elem->cnt[i]);
+}  /* block_clear_entry */
+
+/**
+ * Returns the associated block_entry_t for an block.
+ *
+ * @param block_nr  an IR  block number
+ * @param hmap      a hash map containing long -> block_entry_t
  */
-static ir_op *opcode_find_entry(opcode code, pset *set)
+static block_entry_t *block_get_entry(struct obstack *obst, long block_nr, hmap_block_entry_t *hmap)
 {
-  ir_op key;
+       block_entry_t key;
+       block_entry_t *elem;
 
-  key.code = code;
-  return pset_find(set, &key, code);
-}
+       key.block_nr = block_nr;
+
+       elem = pset_find(hmap, &key, block_nr);
+       if (elem)
+               return elem;
+
+       elem = obstack_alloc(obst, sizeof(*elem));
+       memset(elem, 0, sizeof(*elem));
+
+       /* clear new counter */
+       block_clear_entry(elem);
+
+       elem->block_nr = block_nr;
+
+       return pset_insert(hmap, elem, block_nr);
+}  /* block_get_entry */
 
 /**
- * calculates a hash value for an irg
- * Addresses are typically aligned at 32bit, so we ignore the lowest bits
+ * Clear all sets in be_block_entry_t.
  */
-static INLINE unsigned irg_hash(const ir_graph *irg)
+static void be_block_clear_entry(be_block_entry_t *elem)
 {
-  return (unsigned)irg >> 3;
-}
+       if (elem->reg_pressure)
+               del_pset(elem->reg_pressure);
+
+       if (elem->sched_ready)
+               stat_delete_distrib_tbl(elem->sched_ready);
+
+       if (elem->perm_class_stat)
+               del_pset(elem->perm_class_stat);
+
+       elem->reg_pressure    = new_pset(reg_pressure_cmp, 5);
+       elem->sched_ready     = stat_new_int_distrib_tbl();
+       elem->perm_class_stat = new_pset(perm_class_cmp, 5);
+}  /* be_block_clear_entry */
 
 /**
- * Returns the acssociates graph_entry_t for an irg
+ * Returns the associated be_block_entry_t for an block.
+ *
+ * @param block_nr  an IR  block number
+ * @param hmap      a hash map containing long -> be_block_entry_t
  */
-static graph_entry_t *graph_get_entry(ir_graph *irg, pset *set)
+static be_block_entry_t *be_block_get_entry(struct obstack *obst, long block_nr, hmap_be_block_entry_t *hmap)
 {
-  graph_entry_t key;
-  graph_entry_t *elem;
-  int i;
+       be_block_entry_t key;
+       be_block_entry_t *elem;
 
-  key.irg = irg;
+       key.block_nr = block_nr;
 
-  elem = pset_find(set, &key, irg_hash(irg));
-  if (elem)
-    return elem;
+       elem = pset_find(hmap, &key, block_nr);
+       if (elem)
+               return elem;
 
-  elem = obstack_alloc(&status->cnts, sizeof(*elem));
+       elem = obstack_alloc(obst, sizeof(*elem));
+       memset(elem, 0, sizeof(*elem));
 
-  cnt_clr(&elem->cnt_walked);
-  cnt_clr(&elem->cnt_walked_blocks);
-  cnt_clr(&elem->cnt_got_inlined);
-  cnt_clr(&elem->cnt_was_inlined);
-  cnt_clr(&elem->cnt_edges);
+       /* clear new counter */
+       be_block_clear_entry(elem);
 
-  /* new hash table for opcodes here  */
-  elem->opcode_hash  = new_pset(opcode_cmp, 5);
-  elem->block_hash   = new_pset(block_cmp, 5);
-  elem->irg          = irg;
+       elem->block_nr = block_nr;
 
-  for (i = 0; i < sizeof(elem->opt_hash)/sizeof(elem->opt_hash[0]); ++i)
-    elem->opt_hash[i] = new_pset(opt_cmp, 4);
+       return pset_insert(hmap, elem, block_nr);
+}  /* be_block_get_entry */
 
-  return pset_insert(set, elem, irg_hash(irg));
-}
+/**
+ * clears all sets in perm_class_entry_t
+ */
+static void perm_class_clear_entry(perm_class_entry_t *elem) {
+       if (elem->perm_stat)
+               del_pset(elem->perm_stat);
+
+       elem->perm_stat = new_pset(perm_stat_cmp, 5);
+}  /* perm_class_clear_entry */
 
 /**
- * Returns the associates opt_entry_t for an ir_op
+ * Returns the associated perm_class entry for a register class.
+ *
+ * @param class_name  the register class name
+ * @param hmap        a hash map containing class_name -> perm_class_entry_t
  */
-static opt_entry_t *opt_get_entry(const ir_op *op, pset *set)
+static perm_class_entry_t *perm_class_get_entry(struct obstack *obst, const char *class_name,
+                                                hmap_perm_class_entry_t *hmap)
 {
-  opt_entry_t key;
-  opt_entry_t *elem;
+       perm_class_entry_t key;
+       perm_class_entry_t *elem;
 
-  key.op = op;
+       key.class_name = class_name;
 
-  elem = pset_find(set, &key, op->code);
-  if (elem)
-    return elem;
+       elem = pset_find(hmap, &key, HASH_PTR(class_name));
+       if (elem)
+               return elem;
 
-  elem = obstack_alloc(&status->cnts, sizeof(*elem));
+       elem = obstack_alloc(obst, sizeof(*elem));
+       memset(elem, 0, sizeof(*elem));
 
-  /* clear new counter */
-  cnt_clr(&elem->count);
+       /* clear new counter */
+       perm_class_clear_entry(elem);
 
-  elem->op = op;
+       elem->class_name = class_name;
 
-  return pset_insert(set, elem, op->code);
-}
+       return pset_insert(hmap, elem, HASH_PTR(class_name));
+}  /* perm_class_get_entry */
 
 /**
- * Returns the associates block_entry_t for an block
+ * clears all sets in perm_stat_entry_t
  */
-static block_entry_t *block_get_entry(long block_nr, pset *set)
+static void perm_stat_clear_entry(perm_stat_entry_t *elem) {
+       if (elem->chains)
+               stat_delete_distrib_tbl(elem->chains);
+
+       if (elem->cycles)
+               stat_delete_distrib_tbl(elem->cycles);
+
+       elem->chains = stat_new_int_distrib_tbl();
+       elem->cycles = stat_new_int_distrib_tbl();
+}  /* perm_stat_clear_entry */
+
+/**
+ * Returns the associated perm_stat entry for a perm.
+ *
+ * @param perm      the perm node
+ * @param hmap      a hash map containing perm -> perm_stat_entry_t
+ */
+static perm_stat_entry_t *perm_stat_get_entry(struct obstack *obst, ir_node *perm, hmap_perm_stat_entry_t *hmap)
 {
-  block_entry_t key;
-  block_entry_t *elem;
+       perm_stat_entry_t key;
+       perm_stat_entry_t *elem;
 
-  key.block_nr = block_nr;
+       key.perm = perm;
 
-  elem = pset_find(set, &key, block_nr);
-  if (elem)
-    return elem;
+       elem = pset_find(hmap, &key, HASH_PTR(perm));
+       if (elem)
+               return elem;
 
-  elem = obstack_alloc(&status->cnts, sizeof(*elem));
+       elem = obstack_alloc(obst, sizeof(*elem));
+       memset(elem, 0, sizeof(*elem));
 
-  /* clear new counter */
-  cnt_clr(&elem->cnt_nodes);
-  cnt_clr(&elem->cnt_edges);
-  cnt_clr(&elem->cnt_in_edges);
-  cnt_clr(&elem->cnt_out_edges);
+       /* clear new counter */
+       perm_stat_clear_entry(elem);
 
-  elem->block_nr = block_nr;
+       elem->perm = perm;
 
-  return pset_insert(set, elem, block_nr);
-}
+       return pset_insert(hmap, elem, HASH_PTR(perm));
+}  /* perm_stat_get_entry */
 
+/**
+ * Clear optimizations counter,
+ */
+static void clear_optimization_counter(void)  {
+       int i;
+       for (i = 0; i < FS_OPT_MAX; ++i)
+               cnt_clr(&status->num_opts[i]);
+}
 
 /**
  * Returns the ir_op for an IR-node,
- * handles special cases and return pseudo op codes
+ * handles special cases and return pseudo op codes.
+ *
+ * @param none  an IR node
  */
-static ir_op *stat_get_irn_op(const ir_node *node)
+static ir_op *stat_get_irn_op(ir_node *node)
 {
-  ir_op *op = get_irn_op(node);
-
-  if (op->code == iro_Phi && get_irn_arity(node) == 0) {
-    /* special case, a Phi0 node, count on extra counter */
-    op = status->op_Phi0;
-  }
-  else if (op->code == iro_Phi && get_irn_mode(node) == mode_M) {
-    /* special case, a Memory Phi node, count on extra counter */
-    op = status->op_PhiM;
-  }
-  return op;
-}
+       ir_op *op = get_irn_op(node);
+       ir_opcode opc = op->code;
+
+       switch (opc) {
+       case iro_Phi:
+               if (get_irn_arity(node) == 0) {
+                       /* special case, a Phi0 node, count on extra counter */
+                       op = status->op_Phi0 ? status->op_Phi0 : op;
+               } else if (get_irn_mode(node) == mode_M) {
+                       /* special case, a Memory Phi node, count on extra counter */
+                       op = status->op_PhiM ? status->op_PhiM : op;
+               }  /* if */
+               break;
+       case iro_Proj:
+               if (get_irn_mode(node) == mode_M) {
+                       /* special case, a Memory Proj node, count on extra counter */
+                       op = status->op_ProjM ? status->op_ProjM : op;
+               }  /* if */
+               break;
+       case iro_Mul:
+               if (is_Const(get_Mul_left(node)) || is_Const(get_Mul_right(node))) {
+                       /* special case, a Multiply by a const, count on extra counter */
+                       op = status->op_MulC ? status->op_MulC : op;
+               }  /* if */
+               break;
+       case iro_Div:
+               if (is_Const(get_Div_right(node))) {
+                       /* special case, a division by a const, count on extra counter */
+                       op = status->op_DivC ? status->op_DivC : op;
+               }  /* if */
+               break;
+       case iro_Mod:
+               if (is_Const(get_Mod_right(node))) {
+                       /* special case, a module by a const, count on extra counter */
+                       op = status->op_ModC ? status->op_ModC : op;
+               }  /* if */
+               break;
+       case iro_DivMod:
+               if (is_Const(get_DivMod_right(node))) {
+                       /* special case, a division/modulo by a const, count on extra counter */
+                       op = status->op_DivModC ? status->op_DivModC : op;
+               }  /* if */
+               break;
+       case iro_Quot:
+               if (is_Const(get_Quot_right(node))) {
+                       /* special case, a floating point division by a const, count on extra counter */
+                       op = status->op_QuotC ? status->op_QuotC : op;
+               }  /* if */
+               break;
+       case iro_Sel:
+               if (is_Sel(get_Sel_ptr(node))) {
+                       /* special case, a Sel of a Sel, count on extra counter */
+                       op = status->op_SelSel ? status->op_SelSel : op;
+                       if (is_Sel(get_Sel_ptr(get_Sel_ptr(node)))) {
+                               /* special case, a Sel of a Sel of a Sel, count on extra counter */
+                               op = status->op_SelSelSel ? status->op_SelSelSel : op;
+                       }  /* if */
+               }  /* if */
+               break;
+       default:
+               ;
+       }  /* switch */
+
+       return op;
+}  /* stat_get_irn_op */
 
 /**
  * update the block counter
  */
-static void count_block_info(ir_node *node, graph_entry_t *graph)
+static void undate_block_info(ir_node *node, graph_entry_t *graph)
 {
-  ir_op *op = get_irn_op(node);
-  ir_node *block;
-  block_entry_t *b_entry;
-  int i, arity;
-
-  /* check for block */
-  if (op == op_Block) {
-    arity = get_irn_arity(node);
-    b_entry = block_get_entry(get_irn_node_nr(node), graph->block_hash);
-
-    /* count all incoming edges */
-    for (i = 0; i < arity; ++i) {
-      ir_node *pred = get_irn_n(node, i);
-      ir_node *other_block = get_nodes_Block(pred);
-      block_entry_t *b_entry_other = block_get_entry(get_irn_node_nr(other_block), graph->block_hash);
-
-      cnt_inc(&b_entry->cnt_in_edges); /* an edge coming from another block */
-      cnt_inc(&b_entry_other->cnt_out_edges);
-    }
-    return;
-  }
-  else if (op == op_Call) {
-    // return;
-  }
-
-  block   = get_nodes_Block(node);
-  b_entry = block_get_entry(get_irn_node_nr(block), graph->block_hash);
-
-  /* we have a new nodes */
-  cnt_inc(&b_entry->cnt_nodes);
-
-  arity = get_irn_arity(node);
-
-  for (i = 0; i < arity; ++i) {
-    ir_node *pred = get_irn_n(node, i);
-    ir_node *other_block;
-
-    if (get_irn_op(pred) == op_Block)
-      continue;
-
-    other_block = get_nodes_Block(pred);
-
-    if (other_block == block)
-      cnt_inc(&b_entry->cnt_edges);    /* a in block edge */
-    else {
-      block_entry_t *b_entry_other = block_get_entry(get_irn_node_nr(other_block), graph->block_hash);
-
-      cnt_inc(&b_entry->cnt_in_edges); /* an edge coming from another block */
-      cnt_inc(&b_entry_other->cnt_out_edges);
-    }
-  }
-}
+       ir_op *op = get_irn_op(node);
+       ir_node *block;
+       block_entry_t *b_entry;
+       int i, arity;
+
+       /* check for block */
+       if (op == op_Block) {
+               arity = get_irn_arity(node);
+               b_entry = block_get_entry(&graph->recalc_cnts, get_irn_node_nr(node), graph->block_hash);
+               /* mark start end block to allow to filter them out */
+               if (node == get_irg_start_block(graph->irg))
+                       b_entry->is_start = 1;
+               else if (node == get_irg_end_block(graph->irg))
+                       b_entry->is_end = 1;
+
+               /* count all incoming edges */
+               for (i = 0; i < arity; ++i) {
+                       ir_node *pred = get_irn_n(node, i);
+                       ir_node *other_block = get_nodes_block(pred);
+                       block_entry_t *b_entry_other = block_get_entry(&graph->recalc_cnts, get_irn_node_nr(other_block), graph->block_hash);
+
+                       cnt_inc(&b_entry->cnt[bcnt_in_edges]);  /* an edge coming from another block */
+                       cnt_inc(&b_entry_other->cnt[bcnt_out_edges]);
+               }  /* for */
+               return;
+       }  /* if */
+
+       block   = get_nodes_block(node);
+       b_entry = block_get_entry(&graph->recalc_cnts, get_irn_node_nr(block), graph->block_hash);
+
+       if (op == op_Phi && mode_is_datab(get_irn_mode(node))) {
+               /* count data Phi per block */
+               cnt_inc(&b_entry->cnt[bcnt_phi_data]);
+       }  /* if */
+
+       /* we have a new node in our block */
+       cnt_inc(&b_entry->cnt[bcnt_nodes]);
+
+       /* don't count keep-alive edges */
+       if (is_End(node))
+               return;
+
+       arity = get_irn_arity(node);
+
+       for (i = 0; i < arity; ++i) {
+               ir_node *pred = get_irn_n(node, i);
+               ir_node *other_block;
+
+               other_block = get_nodes_block(pred);
+
+               if (other_block == block)
+                       cnt_inc(&b_entry->cnt[bcnt_edges]);     /* a in block edge */
+               else {
+                       block_entry_t *b_entry_other = block_get_entry(&graph->recalc_cnts, get_irn_node_nr(other_block), graph->block_hash);
+
+                       cnt_inc(&b_entry->cnt[bcnt_in_edges]);  /* an edge coming from another block */
+                       cnt_inc(&b_entry_other->cnt[bcnt_out_edges]);
+               }  /* if */
+       }  /* for */
+}  /* undate_block_info */
 
 /**
- * walker for reachable nodes count
+ * Update the extended block counter.
  */
-static void count_nodes(ir_node *node, void *env)
+static void update_extbb_info(ir_node *node, graph_entry_t *graph)
 {
-  graph_entry_t *graph = env;
-  node_entry_t *entry;
+       ir_op *op = get_irn_op(node);
+       ir_extblk *extbb;
+       extbb_entry_t *eb_entry;
+       int i, arity;
+
+       /* check for block */
+       if (op == op_Block) {
+               extbb = get_nodes_extbb(node);
+               arity = get_irn_arity(node);
+               eb_entry = block_get_entry(&graph->recalc_cnts, get_extbb_node_nr(extbb), graph->extbb_hash);
+
+               /* count all incoming edges */
+               for (i = 0; i < arity; ++i) {
+                       ir_node *pred = get_irn_n(node, i);
+                       ir_extblk *other_extbb = get_nodes_extbb(pred);
+
+                       if (extbb != other_extbb) {
+                               extbb_entry_t *eb_entry_other = block_get_entry(&graph->recalc_cnts, get_extbb_node_nr(other_extbb), graph->extbb_hash);
+
+                               cnt_inc(&eb_entry->cnt[bcnt_in_edges]); /* an edge coming from another extbb */
+                               cnt_inc(&eb_entry_other->cnt[bcnt_out_edges]);
+                       }  /* if */
+               }  /* for */
+               return;
+       }  /* if */
+
+       extbb    = get_nodes_extbb(node);
+       eb_entry = block_get_entry(&graph->recalc_cnts, get_extbb_node_nr(extbb), graph->extbb_hash);
+
+       if (op == op_Phi && mode_is_datab(get_irn_mode(node))) {
+               /* count data Phi per extbb */
+               cnt_inc(&eb_entry->cnt[bcnt_phi_data]);
+       }  /* if */
+
+       /* we have a new node in our block */
+       cnt_inc(&eb_entry->cnt[bcnt_nodes]);
+
+       /* don't count keep-alive edges */
+       if (is_End(node))
+               return;
+
+       arity = get_irn_arity(node);
+
+       for (i = 0; i < arity; ++i) {
+               ir_node *pred = get_irn_n(node, i);
+               ir_extblk *other_extbb = get_nodes_extbb(pred);
+
+               if (other_extbb == extbb)
+                       cnt_inc(&eb_entry->cnt[bcnt_edges]);    /* a in extbb edge */
+               else {
+                       extbb_entry_t *eb_entry_other = block_get_entry(&graph->recalc_cnts, get_extbb_node_nr(other_extbb), graph->extbb_hash);
+
+                       cnt_inc(&eb_entry->cnt[bcnt_in_edges]); /* an edge coming from another extbb */
+                       cnt_inc(&eb_entry_other->cnt[bcnt_out_edges]);
+               }  /* if */
+       }  /* for */
+}  /* update_extbb_info */
 
-  ir_op *op = stat_get_irn_op(node);
-  int arity = get_irn_arity(node);
+/**
+ * Calculates how many arguments of the call are const, updates
+ * param distribution.
+ */
+static void analyse_params_of_Call(graph_entry_t *graph, ir_node *call) {
+       int i, num_const_args = 0, num_local_adr = 0;
+       int n = get_Call_n_params(call);
 
-  entry = opcode_get_entry(op, graph->opcode_hash);
+       for (i = 0; i < n; ++i) {
+               ir_node *param = get_Call_param(call, i);
 
-  cnt_inc(&entry->cnt_alive);
-  cnt_add_i(&graph->cnt_edges, arity);
+               if (is_irn_constlike(param))
+                       ++num_const_args;
+               else if (is_Sel(param)) {
+                       ir_node *base = param;
 
-  /* count block edges */
-  count_block_info(node, graph);
-}
+                       do {
+                               base = get_Sel_ptr(base);
+                       } while (is_Sel(base));
+
+                       if (base == get_irg_frame(current_ir_graph))
+                               ++num_local_adr;
+               }
+
+       }  /* for */
+
+       if (num_const_args > 0)
+               cnt_inc(&graph->cnt[gcnt_call_with_cnst_arg]);
+       if (num_const_args == n)
+               cnt_inc(&graph->cnt[gcnt_call_with_all_cnst_arg]);
+       if (num_local_adr > 0)
+               cnt_inc(&graph->cnt[gcnt_call_with_local_adr]);
+
+       stat_inc_int_distrib_tbl(status->dist_param_cnt, n);
+}  /* analyse_params_of_Call */
 
 /**
- * count all alive nodes and edges in a graph
+ * Update info on calls.
+ *
+ * @param call   The call
+ * @param graph  The graph entry containing the call
  */
-static void count_nodes_in_graph(graph_entry_t *global, graph_entry_t *graph)
+static void stat_update_call(ir_node *call, graph_entry_t *graph)
 {
-  node_entry_t *entry;
+       ir_node   *block = get_nodes_block(call);
+       ir_node   *ptr = get_Call_ptr(call);
+       ir_entity *ent = NULL;
+       ir_graph  *callee = NULL;
+
+       /*
+        * If the block is bad, the whole subgraph will collapse later
+        * so do not count this call.
+        * This happens in dead code.
+        */
+       if (is_Bad(block))
+               return;
+
+       cnt_inc(&graph->cnt[gcnt_all_calls]);
+
+       /* found a call, this function is not a leaf */
+       graph->is_leaf = 0;
+
+       if (is_SymConst(ptr)) {
+               if (get_SymConst_kind(ptr) == symconst_addr_ent) {
+                       /* ok, we seems to know the entity */
+                       ent = get_SymConst_entity(ptr);
+                       callee = get_entity_irg(ent);
+
+                       /* it is recursive, if it calls at least once */
+                       if (callee == graph->irg)
+                               graph->is_recursive = 1;
+                       if (callee == NULL)
+                               cnt_inc(&graph->cnt[gcnt_external_calls]);
+               }  /* if */
+       } else {
+               /* indirect call, be could not predict */
+               cnt_inc(&graph->cnt[gcnt_indirect_calls]);
+
+               /* NOT a leaf call */
+               graph->is_leaf_call = LCS_NON_LEAF_CALL;
+       }  /* if */
+
+       /* check, if it's a chain-call: Then, the call-block
+        * must dominate the end block. */
+       {
+               ir_node *curr = get_irg_end_block(graph->irg);
+               int depth = get_Block_dom_depth(block);
+
+               for (; curr != block && get_Block_dom_depth(curr) > depth;) {
+                       curr = get_Block_idom(curr);
+
+                       if (! curr || is_no_Block(curr))
+                               break;
+               }  /* for */
+
+               if (curr != block)
+                       graph->is_chain_call = 0;
+       }
+
+       /* check, if the callee is a leaf */
+       if (callee) {
+               graph_entry_t *called = graph_get_entry(callee, status->irg_hash);
+
+               if (called->is_analyzed) {
+                       if (! called->is_leaf)
+                               graph->is_leaf_call = LCS_NON_LEAF_CALL;
+               }  /* if */
+       }  /* if */
+
+       analyse_params_of_Call(graph, call);
+}  /* stat_update_call */
 
-  irg_walk_graph(graph->irg, count_nodes, NULL, graph);
+/**
+ * Update info on calls for graphs on the wait queue.
+ */
+static void stat_update_call_2(ir_node *call, graph_entry_t *graph)
+{
+       ir_node   *block = get_nodes_block(call);
+       ir_node   *ptr = get_Call_ptr(call);
+       ir_entity *ent = NULL;
+       ir_graph  *callee = NULL;
+
+       /*
+        * If the block is bad, the whole subgraph will collapse later
+        * so do not count this call.
+        * This happens in dead code.
+        */
+       if (is_Bad(block))
+               return;
+
+       if (is_SymConst(ptr)) {
+               if (get_SymConst_kind(ptr) == symconst_addr_ent) {
+                       /* ok, we seems to know the entity */
+                       ent = get_SymConst_entity(ptr);
+                       callee = get_entity_irg(ent);
+               }  /* if */
+       }  /* if */
+
+       /* check, if the callee is a leaf */
+       if (callee) {
+               graph_entry_t *called = graph_get_entry(callee, status->irg_hash);
+
+               assert(called->is_analyzed);
+
+               if (! called->is_leaf)
+                       graph->is_leaf_call = LCS_NON_LEAF_CALL;
+       } else
+               graph->is_leaf_call = LCS_NON_LEAF_CALL;
+}  /* stat_update_call_2 */
 
-  /* assume we walk every graph only ONCE, we could sum here the global count */
-  for (entry = pset_first(graph->opcode_hash); entry; entry = pset_next(graph->opcode_hash)) {
-    node_entry_t *g_entry = opcode_get_entry(entry->op, global->opcode_hash);
+/**
+ * Find the base address and entity of an Sel node.
+ *
+ * @param sel  the node
+ *
+ * @return the base address.
+ */
+static ir_node *find_base_adr(ir_node *sel) {
+       ir_node *ptr = get_Sel_ptr(sel);
 
-    /* update the node counter */
-    cnt_add(&g_entry->cnt_alive, &entry->cnt_alive);
-  }
+       while (is_Sel(ptr)) {
+               sel = ptr;
+               ptr = get_Sel_ptr(sel);
+       }
+       return ptr;
+}  /* find_base_adr */
 
-  /* update the edge counter */
-  cnt_add(&global->cnt_edges, &graph->cnt_edges);
-}
+/**
+ * Update info on Load/Store address statistics.
+ */
+static void stat_update_address(ir_node *node, graph_entry_t *graph) {
+       ir_opcode opc = get_irn_opcode(node);
+       ir_node *base;
+       ir_graph *irg;
+
+       switch (opc) {
+       case iro_SymConst:
+               /* a global address */
+               cnt_inc(&graph->cnt[gcnt_global_adr]);
+               break;
+       case iro_Sel:
+               base = find_base_adr(node);
+               irg = current_ir_graph;
+               if (base == get_irg_tls(irg)) {
+                       /* a TLS variable, like a global. */
+                       cnt_inc(&graph->cnt[gcnt_global_adr]);
+               } else if (base == get_irg_frame(irg)) {
+                       /* a local Variable. */
+                       cnt_inc(&graph->cnt[gcnt_local_adr]);
+               } else {
+                       /* Pointer access */
+                       if (is_Proj(base) && skip_Proj(get_Proj_pred(base)) == get_irg_start(irg)) {
+                               /* pointer access through parameter, check for THIS */
+                               ir_entity *ent = get_irg_entity(irg);
+
+                               if (ent != NULL) {
+                                       ir_type *ent_tp = get_entity_type(ent);
+
+                                       if (get_method_calling_convention(ent_tp) & cc_this_call) {
+                                               if (get_Proj_proj(base) == 0) {
+                                                       /* THIS pointer */
+                                                       cnt_inc(&graph->cnt[gcnt_this_adr]);
+                                                       goto end_parameter;
+                                               }  /* if */
+                                       }  /* if */
+                               }  /* if */
+                               /* other parameter */
+                               cnt_inc(&graph->cnt[gcnt_param_adr]);
+end_parameter: ;
+                       } else {
+                               /* unknown Pointer access */
+                               cnt_inc(&graph->cnt[gcnt_other_adr]);
+                       }  /* if */
+               }  /* if */
+       default:
+               ;
+       }  /* switch */
+}  /* stat_update_address */
 
 /**
- * register a dumper
+ * Walker for reachable nodes count.
  */
-static void stat_register_dumper(dumper_t *dumper, const char *name)
+static void update_node_stat(ir_node *node, void *env)
 {
-  dumper->next   = status->dumper;
-  status->dumper = dumper;
+       graph_entry_t *graph = env;
+       node_entry_t *entry;
+
+       ir_op *op = stat_get_irn_op(node);
+       int i, arity = get_irn_arity(node);
+
+       entry = opcode_get_entry(op, graph->opcode_hash);
+
+       cnt_inc(&entry->cnt_alive);
+       cnt_add_i(&graph->cnt[gcnt_edges], arity);
+
+       /* count block edges */
+       undate_block_info(node, graph);
+
+       /* count extended block edges */
+       if (status->stat_options & FIRMSTAT_COUNT_EXTBB) {
+               if (graph->irg != get_const_code_irg())
+                       update_extbb_info(node, graph);
+       }  /* if */
+
+       /* handle statistics for special node types */
+
+       switch (op->code) {
+       case iro_Call:
+               /* check for properties that depends on calls like recursion/leaf/indirect call */
+               stat_update_call(node, graph);
+               break;
+       case iro_Load:
+               /* check address properties */
+               stat_update_address(get_Load_ptr(node), graph);
+               break;
+       case iro_Store:
+               /* check address properties */
+               stat_update_address(get_Store_ptr(node), graph);
+               break;
+       case iro_Phi:
+               /* check for non-strict Phi nodes */
+               for (i = arity - 1; i >= 0; --i) {
+                       ir_node *pred = get_Phi_pred(node, i);
+                       if (is_Unknown(pred)) {
+                               /* found an Unknown predecessor, graph is not strict */
+                               graph->is_strict = 0;
+                               break;
+                       }
+               }
+       default:
+               ;
+       }  /* switch */
+
+       /* we want to count the constant IN nodes, not the CSE'ed constant's itself */
+       if (status->stat_options & FIRMSTAT_COUNT_CONSTS) {
+               int i;
+
+               for (i = get_irn_arity(node) - 1; i >= 0; --i) {
+                       ir_node *pred = get_irn_n(node, i);
+
+                       if (is_Const(pred)) {
+                               /* check properties of constants */
+                               stat_update_const(status, pred, graph);
+                       }  /* if */
+               }  /* for */
+       }  /* if */
+}  /* update_node_stat */
 
-  if (dumper->init)
-    dumper->init(dumper, name);
-}
+/**
+ * Walker for reachable nodes count for graphs on the wait_q.
+ */
+static void update_node_stat_2(ir_node *node, void *env) {
+       graph_entry_t *graph = env;
+
+       /* check for properties that depends on calls like recursion/leaf/indirect call */
+       if (is_Call(node))
+               stat_update_call_2(node, graph);
+}  /* update_node_stat_2 */
 
 /**
- * dumps an irg
+ * Get the current address mark.
  */
-static void dump_graph(graph_entry_t *entry)
-{
-  dumper_t *dumper;
+static unsigned get_adr_mark(graph_entry_t *graph, ir_node *node) {
+       address_mark_entry_t *value = set_find(graph->address_mark, &node, sizeof(*value), HASH_PTR(node));
 
-  for (dumper = status->dumper; dumper; dumper = dumper->next) {
-    if (dumper->dump_graph)
-      dumper->dump_graph(dumper, entry);
-  }
-}
+       return value ? value->mark : 0;
+}  /* get_adr_mark */
 
 /**
- * finish the dumper
+ * Set the current address mark.
  */
-static void dump_finish(void)
-{
-  dumper_t *dumper;
+static void set_adr_mark(graph_entry_t *graph, ir_node *node, unsigned val) {
+       address_mark_entry_t *value = set_insert(graph->address_mark, &node, sizeof(*value), HASH_PTR(node));
 
-  for (dumper = status->dumper; dumper; dumper = dumper->next) {
-    if (dumper->finish)
-      dumper->finish(dumper);
-  }
-}
+       value->mark = val;
+}  /* set_adr_mark */
 
-/* ---------------------------------------------------------------------- */
+#undef DUMP_ADR_MODE
 
+#ifdef DUMP_ADR_MODE
 /**
- * dumps a opcode hash into human readable form
+ * a vcg attribute hook: Color a node with a different color if
+ * it's identified as a part of an address expression or at least referenced
+ * by an address expression.
  */
-static void simple_dump_opcode_hash(dumper_t *dmp, pset *set)
+static int stat_adr_mark_hook(FILE *F, ir_node *node, ir_node *local)
 {
-  node_entry_t *entry;
-  counter_t f_alive;
-  counter_t f_new_node;
-  counter_t f_Id;
-
-  cnt_clr(&f_alive);
-  cnt_clr(&f_new_node);
-  cnt_clr(&f_Id);
-
-  fprintf(dmp->f, "%-16s %-8s %-8s %-8s\n", "Opcode", "alive", "created", "->Id");
-  for (entry = pset_first(set); entry; entry = pset_next(set)) {
-    fprintf(dmp->f, "%-16s %8d %8d %8d\n",
-      get_id_str(entry->op->name), entry->cnt_alive.cnt[0], entry->new_node.cnt[0], entry->into_Id.cnt[0]);
-
-    cnt_add(&f_alive,    &entry->cnt_alive);
-    cnt_add(&f_new_node, &entry->new_node);
-    cnt_add(&f_Id,       &entry->into_Id);
-  }
-  fprintf(dmp->f, "-------------------------------------------\n");
-  fprintf(dmp->f, "%-16s %8d %8d %8d\n", "Sum",
-     f_alive.cnt[0],
-     f_new_node.cnt[0],
-     f_Id.cnt[0]);
-}
+       ir_node *n           = local ? local : node;
+       ir_graph *irg        = get_irn_irg(n);
+       graph_entry_t *graph = graph_get_entry(irg, status->irg_hash);
+       unsigned mark        = get_adr_mark(graph, n);
+
+       if (mark & MARK_ADDRESS_CALC)
+               fprintf(F, "color: purple");
+       else if ((mark & (MARK_REF_ADR | MARK_REF_NON_ADR)) == MARK_REF_ADR)
+               fprintf(F, "color: pink");
+       else if ((mark & (MARK_REF_ADR | MARK_REF_NON_ADR)) == (MARK_REF_ADR|MARK_REF_NON_ADR))
+               fprintf(F, "color: lightblue");
+       else
+               return 0;
+
+       /* I know the color! */
+       return 1;
+}  /* stat_adr_mark_hook */
+#endif /* DUMP_ADR_MODE */
 
 /**
- * dumps a optimization hash into human readable form
+ * Return the "operational" mode of a Firm node.
  */
-static void simple_dump_opt_hash(dumper_t *dmp, pset *set, int index)
-{
-  opt_entry_t *entry = pset_first(set);
+static ir_mode *get_irn_op_mode(ir_node *node) {
+       switch (get_irn_opcode(node)) {
+       case iro_Load:
+               return get_Load_mode(node);
+       case iro_Store:
+               return get_irn_mode(get_Store_value(node));
+       case iro_DivMod:
+               return get_irn_mode(get_DivMod_left(node));
+       case iro_Div:
+               return get_irn_mode(get_Div_left(node));
+       case iro_Mod:
+               return get_irn_mode(get_Mod_left(node));
+       case iro_Cmp:
+               /* Cmp is no address calculation, or is it? */
+       default:
+               return get_irn_mode(node);
+       }  /* switch */
+}  /* get_irn_op_mode */
 
-  if (entry) {
-    fprintf(dmp->f, "\n%s:\n", opt_names[index]);
-    fprintf(dmp->f, "%-16s %-8s\n", "Opcode", "deref");
+/**
+ * Post-walker that marks every node that is an address calculation.
+ *
+ * Users of a node must be visited first. We ensure this by
+ * calling it in the post of an outs walk. This should work even in cycles,
+ * while the normal pre-walk will not.
+ */
+static void mark_address_calc(ir_node *node, void *env) {
+       graph_entry_t *graph = env;
+       ir_mode *mode = get_irn_op_mode(node);
+       int i, n;
+       unsigned mark_preds = MARK_REF_NON_ADR;
+
+       if (! mode_is_data(mode))
+               return;
+
+       if (mode_is_reference(mode)) {
+               /* a reference is calculated here, we are sure */
+               set_adr_mark(graph, node, MARK_ADDRESS_CALC);
+
+               mark_preds = MARK_REF_ADR;
+       } else {
+               unsigned mark = get_adr_mark(graph, node);
+
+               if ((mark & (MARK_REF_ADR | MARK_REF_NON_ADR)) == MARK_REF_ADR) {
+                       /*
+                        * this node has no reference mode, but is only
+                        * referenced by address calculations
+                        */
+                       mark_preds = MARK_REF_ADR;
+               }  /* if */
+       }  /* if */
+
+       /* mark all predecessors */
+       for (i = 0, n = get_irn_arity(node); i < n; ++i) {
+               ir_node *pred = get_irn_n(node, i);
+
+               mode = get_irn_op_mode(pred);
+               if (! mode_is_data(mode))
+                       continue;
+
+               set_adr_mark(graph, pred, get_adr_mark(graph, pred) | mark_preds);
+       }  /* for */
+}  /* mark_address_calc */
 
-    for (; entry; entry = pset_next(set)) {
-      fprintf(dmp->f, "%-16s %8d\n",
-        get_id_str(entry->op->name), entry->count.cnt[0]);
-    }
-  }
-}
+/**
+ * Post-walker that marks every node that is an address calculation.
+ *
+ * Users of a node must be visited first. We ensure this by
+ * calling it in the post of an outs walk. This should work even in cycles,
+ * while the normal pre-walk will not.
+ */
+static void count_adr_ops(ir_node *node, void *env) {
+       graph_entry_t *graph = env;
+       unsigned mark        = get_adr_mark(graph, node);
+
+       if (mark & MARK_ADDRESS_CALC)
+               cnt_inc(&graph->cnt[gcnt_pure_adr_ops]);
+       else if ((mark & (MARK_REF_ADR | MARK_REF_NON_ADR)) == MARK_REF_ADR)
+               cnt_inc(&graph->cnt[gcnt_pure_adr_ops]);
+       else if ((mark & (MARK_REF_ADR | MARK_REF_NON_ADR)) == (MARK_REF_ADR|MARK_REF_NON_ADR))
+               cnt_inc(&graph->cnt[gcnt_all_adr_ops]);
+}  /* count_adr_ops */
 
 /**
- * dumps the endges count
+ * Called for every graph when the graph is either deleted or stat_dump_snapshot()
+ * is called, must recalculate all statistic info.
+ *
+ * @param global    The global entry
+ * @param graph     The current entry
  */
-static void simple_dump_edges(dumper_t *dmp, counter_t *cnt)
+static void update_graph_stat(graph_entry_t *global, graph_entry_t *graph)
 {
-  fprintf(dmp->f, "%-16s %8d\n", "Edges", cnt->cnt[0]);
-}
+       node_entry_t *entry;
+       int i;
+
+       /* clear first the alive counter in the graph */
+       foreach_pset(graph->opcode_hash, entry) {
+               cnt_clr(&entry->cnt_alive);
+       }  /* foreach_pset */
+
+       /* set pessimistic values */
+       graph->is_leaf       = 1;
+       graph->is_leaf_call  = LCS_UNKNOWN;
+       graph->is_recursive  = 0;
+       graph->is_chain_call = 1;
+       graph->is_strict     = 1;
+
+       /* create new block counter */
+       graph->block_hash = new_pset(block_cmp, 5);
+
+       /* we need dominator info */
+       if (graph->irg != get_const_code_irg()) {
+               assure_doms(graph->irg);
+
+               if (status->stat_options & FIRMSTAT_COUNT_EXTBB) {
+                       /* we need extended basic blocks */
+                       compute_extbb(graph->irg);
+
+                       /* create new extbb counter */
+                       graph->extbb_hash = new_pset(block_cmp, 5);
+               }  /* if */
+       }  /* if */
+
+       /* count the nodes in the graph */
+       irg_walk_graph(graph->irg, update_node_stat, NULL, graph);
+
+#if 0
+       /* Uncomment this code if chain-call means call exact one. */
+       entry = opcode_get_entry(op_Call, graph->opcode_hash);
+
+       /* check if we have more than 1 call */
+       if (cnt_gt(entry->cnt_alive, 1))
+               graph->is_chain_call = 0;
+#endif
+
+       /* recursive functions are never chain calls, leafs don't have calls */
+       if (graph->is_recursive || graph->is_leaf)
+               graph->is_chain_call = 0;
+
+       /* assume we walk every graph only ONCE, we could sum here the global count */
+       foreach_pset(graph->opcode_hash, entry) {
+               node_entry_t *g_entry = opcode_get_entry(entry->op, global->opcode_hash);
+
+               /* update the node counter */
+               cnt_add(&g_entry->cnt_alive, &entry->cnt_alive);
+       }  /* foreach_pset */
+
+       /* count the number of address calculation */
+       if (graph->irg != get_const_code_irg()) {
+               ir_graph *rem = current_ir_graph;
+
+               assure_irg_outs(graph->irg);
+
+               /* Must be done an the outs graph */
+               current_ir_graph = graph->irg;
+               irg_out_walk(get_irg_start(graph->irg), NULL, mark_address_calc, graph);
+               current_ir_graph = rem;
+
+#ifdef DUMP_ADR_MODE
+               /* register the vcg hook and dump the graph for test */
+               set_dump_node_vcgattr_hook(stat_adr_mark_hook);
+               dump_ir_block_graph(graph->irg, "-adr");
+               set_dump_node_vcgattr_hook(NULL);
+#endif /* DUMP_ADR_MODE */
+
+               irg_walk_graph(graph->irg, NULL, count_adr_ops, graph);
+       }  /* if */
+
+       /* count the DAG's */
+       if (status->stat_options & FIRMSTAT_COUNT_DAG)
+               count_dags_in_graph(global, graph);
+
+       /* calculate the patterns of this graph */
+       stat_calc_pattern_history(graph->irg);
+
+       /* leaf function did not call others */
+       if (graph->is_leaf)
+               graph->is_leaf_call = LCS_NON_LEAF_CALL;
+       else if (graph->is_leaf_call == LCS_UNKNOWN) {
+               /* we still don't know if this graph calls leaf-functions, so enqueue */
+               pdeq_putl(status->wait_q, graph);
+       }  /* if */
+
+       /* we have analyzed this graph */
+       graph->is_analyzed = 1;
+
+       /* accumulate all counter's */
+       for (i = 0; i < _gcnt_last; ++i)
+               cnt_add(&global->cnt[i], &graph->cnt[i]);
+}  /* update_graph_stat */
 
 /**
- * dumps the IRG
+ * Called for every graph that was on the wait_q in stat_dump_snapshot()
+ * must finish all statistic info calculations.
+ *
+ * @param global    The global entry
+ * @param graph     The current entry
  */
-static void simple_dump_graph(dumper_t *dmp, graph_entry_t *entry)
+static void update_graph_stat_2(graph_entry_t *global, graph_entry_t *graph)
 {
-  int dump_opts = 1;
-  block_entry_t *b_entry;
-
-  if (entry->irg) {
-    ir_graph *const_irg = get_const_code_irg();
-
-    if (entry->irg == const_irg) {
-      fprintf(dmp->f, "\nConst code Irg %p", (void *)entry->irg);
-    }
-    else {
-      if (entry->ent)
-        fprintf(dmp->f, "\nEntity %s, Irg %p", get_entity_name(entry->ent), (void *)entry->irg);
-      else
-        fprintf(dmp->f, "\nIrg %p", (void *)entry->irg);
-    }
-
-    fprintf(dmp->f, " %swalked %d over blocks %d was inlined %d got inlined %d:\n",
-        entry->deleted ? "DELETED " : "",
-        entry->cnt_walked.cnt[0], entry->cnt_walked_blocks.cnt[0],
-        entry->cnt_was_inlined.cnt[0],
-        entry->cnt_got_inlined.cnt[0]
-    );
-  }
-  else {
-    fprintf(dmp->f, "\nGlobals counts:\n");
-    dump_opts = 0;
-  }
-
-  simple_dump_opcode_hash(dmp, entry->opcode_hash);
-  simple_dump_edges(dmp, &entry->cnt_edges);
-
-  /* effects of optimizations */
-  if (dump_opts) {
-    int i;
-
-    for (i = 0; i < sizeof(entry->opt_hash)/sizeof(entry->opt_hash[0]); ++i) {
-      simple_dump_opt_hash(dmp, entry->opt_hash[i], i);
-    }
-  }
-
-  /* dump block info */
-  fprintf(dmp->f, "\n%12s %12s %12s %12s %12s %12s\n", "Block Nr", "Nodes", "intern", "incoming", "outgoing", "quot");
-  for (b_entry = pset_first(entry->block_hash);
-       b_entry;
-       b_entry = pset_next(entry->block_hash)) {
-    fprintf(dmp->f, "%12ld %12u %12u %12u %12u %4.8f\n",
-       b_entry->block_nr,
-       b_entry->cnt_nodes.cnt[0],
-       b_entry->cnt_edges.cnt[0],
-       b_entry->cnt_in_edges.cnt[0],
-       b_entry->cnt_out_edges.cnt[0],
-       (double)b_entry->cnt_edges.cnt[0] / (double)b_entry->cnt_nodes.cnt[0]
-    );
-  }
-}
+       (void) global;
+       if (graph->is_deleted) {
+               /* deleted, ignore */
+               return;
+       }
+
+       if (graph->irg) {
+               /* count the nodes in the graph */
+               irg_walk_graph(graph->irg, update_node_stat_2, NULL, graph);
+
+               if (graph->is_leaf_call == LCS_UNKNOWN)
+                       graph->is_leaf_call = LCS_LEAF_CALL;
+       }  /* if */
+}  /* update_graph_stat_2 */
 
 /**
- * initialise the simple dumper
+ * Register a dumper.
  */
-static void simple_init(dumper_t *dmp, const char *name)
-{
-  dmp->f = fopen(name, "w");
-}
+static void stat_register_dumper(const dumper_t *dumper) {
+       dumper_t *p = XMALLOC(dumper_t);
+
+       memcpy(p, dumper, sizeof(*p));
+
+       p->next        = status->dumper;
+       p->status      = status;
+       status->dumper = p;
+
+       /* FIXME: memory leak */
+}  /* stat_register_dumper */
 
 /**
- * finishes the simple dumper
+ * Dumps the statistics of an IR graph.
  */
-static void simple_finish(dumper_t *dmp)
-{
-  fclose(dmp->f);
-  dmp->f = NULL;
-}
+static void stat_dump_graph(graph_entry_t *entry) {
+       dumper_t *dumper;
+
+       for (dumper = status->dumper; dumper; dumper = dumper->next) {
+               if (dumper->dump_graph)
+                       dumper->dump_graph(dumper, entry);
+       }  /* for */
+}  /* stat_dump_graph */
 
 /**
- * the simple human readable dumper
+ * Calls all registered dumper functions.
  */
-static dumper_t simple_dumper = {
-  simple_dump_graph,
-  simple_init,
-  simple_finish,
-  NULL,
-  NULL,
-};
+static void stat_dump_registered(graph_entry_t *entry) {
+       dumper_t *dumper;
 
-/* ---------------------------------------------------------------------- */
+       for (dumper = status->dumper; dumper; dumper = dumper->next) {
+               if (dumper->func_map) {
+                       dump_graph_FUNC func;
+
+                       foreach_pset(dumper->func_map, func)
+                               func(dumper, entry);
+               }  /* if */
+       }  /* for */
+}  /* stat_dump_registered */
 
 /**
- * count the nodes as needed:
- *
- * 1 normal (data) Phi's
- * 2 memory Phi's
- * 3 Proj
- * 0 all other nodes
+ * Dumps a constant table.
  */
-static void csv_count_nodes(graph_entry_t *graph, counter_t cnt[])
-{
-  node_entry_t *entry;
-  int i;
-
-  for (i = 0; i < 4; ++i)
-    cnt_clr(&cnt[i]);
-
-  for (entry = pset_first(graph->opcode_hash); entry; entry = pset_next(graph->opcode_hash)) {
-    if (entry->op == op_Phi) {
-      /* normal Phi */
-      cnt_add(&cnt[1], &entry->cnt_alive);
-    }
-    else if (entry->op == status->op_PhiM) {
-      /* memory Phi */
-      cnt_add(&cnt[2], &entry->cnt_alive);
-    }
-    else if (entry->op == op_Proj) {
-      /* Proj */
-      cnt_add(&cnt[3], &entry->cnt_alive);
-    }
-    else {
-      /* all other nodes */
-      cnt_add(&cnt[0], &entry->cnt_alive);
-    }
-  }
-}
+static void stat_dump_consts(const constant_info_t *tbl) {
+       dumper_t *dumper;
+
+       for (dumper = status->dumper; dumper; dumper = dumper->next) {
+               if (dumper->dump_const_tbl)
+                       dumper->dump_const_tbl(dumper, tbl);
+       }  /* for */
+}  /* stat_dump_consts */
 
 /**
- * dumps the IRG
+ * Dumps the parameter distribution
  */
-static void csv_dump_graph(dumper_t *dmp, graph_entry_t *entry)
-{
-  const char *name;
-
-  counter_t cnt[4];
-
-  if (entry->irg) {
-    ir_graph *const_irg = get_const_code_irg();
-
-    if (entry->irg == const_irg) {
-      name = "<Const code Irg>";
-      return;
-    }
-    else {
-      if (entry->ent)
-        name = get_entity_name(entry->ent);
-      else
-        name = "<UNKNOWN IRG>";
-    }
-
-    csv_count_nodes(entry, cnt);
-
-    fprintf(dmp->f, "%-40s, %p, %d, %d, %d, %d\n",
-        name,
-        (void *)entry->irg,
-        cnt[0].cnt[0],
-        cnt[1].cnt[0],
-        cnt[2].cnt[0],
-        cnt[3].cnt[0]
-    );
-  }
-}
+static void stat_dump_param_tbl(const distrib_tbl_t *tbl, graph_entry_t *global) {
+       dumper_t *dumper;
+
+       for (dumper = status->dumper; dumper; dumper = dumper->next) {
+               if (dumper->dump_param_tbl)
+                       dumper->dump_param_tbl(dumper, tbl, global);
+       }  /* for */
+}  /* stat_dump_param_tbl */
 
 /**
- * initialise the simple dumper
+ * Dumps the optimization counter
  */
-static void csv_init(dumper_t *dmp, const char *name)
-{
-  dmp->f = fopen(name, "a");
-}
+static void stat_dump_opt_cnt(const counter_t *tbl, unsigned len) {
+       dumper_t *dumper;
+
+       for (dumper = status->dumper; dumper; dumper = dumper->next) {
+               if (dumper->dump_opt_cnt)
+                       dumper->dump_opt_cnt(dumper, tbl, len);
+       }  /* for */
+}  /* stat_dump_opt_cnt */
 
 /**
- * finishes the simple dumper
+ * Initialize the dumper.
  */
-static void csv_finish(dumper_t *dmp)
-{
-  fclose(dmp->f);
-  dmp->f = NULL;
-}
+static void stat_dump_init(const char *name) {
+       dumper_t *dumper;
+
+       for (dumper = status->dumper; dumper; dumper = dumper->next) {
+               if (dumper->init)
+                       dumper->init(dumper, name);
+       }  /* for */
+}  /* stat_dump_init */
+
+/**
+ * Finish the dumper.
+ */
+static void stat_dump_finish(void) {
+       dumper_t *dumper;
+
+       for (dumper = status->dumper; dumper; dumper = dumper->next) {
+               if (dumper->finish)
+                       dumper->finish(dumper);
+       }  /* for */
+}  /* stat_dump_finish */
 
 /**
- * the simple human readable dumper
+ * Register an additional function for all dumper.
  */
-static dumper_t csv_dumper = {
-  csv_dump_graph,
-  csv_init,
-  csv_finish,
-  NULL,
-  NULL,
-};
+void stat_register_dumper_func(dump_graph_FUNC func) {
+       dumper_t *dumper;
 
+       for (dumper = status->dumper; dumper; dumper = dumper->next) {
+               if (! dumper->func_map)
+                       dumper->func_map = pset_new_ptr(3);
+               pset_insert_ptr(dumper->func_map, func);
+       }  /* for */
+}  /* stat_register_dumper_func */
 
 /* ---------------------------------------------------------------------- */
 
 /*
- * helper: get an ir_op from an opcode
+ * Helper: get an ir_op from an opcode.
  */
-ir_op *stat_get_op_from_opcode(opcode code)
-{
-  return opcode_find_entry(code, status->ir_op_hash);
-}
+ir_op *stat_get_op_from_opcode(ir_opcode code) {
+       return opcode_find_entry(code, status->ir_op_hash);
+}  /* stat_get_op_from_opcode */
 
-/* initialize the statistics module. */
-void stat_init(unsigned enable_options)
-{
-#define X(a)  a, sizeof(a)-1
-
-  int pseudo_id = 0;
-
-  /* enable statistics */
-  status->enable = enable_options & FIRMSTAT_ENABLED;
+/**
+ * Hook: A new IR op is registered.
+ *
+ * @param ctx  the hook context
+ * @param op   the new IR opcode that was created.
+ */
+static void stat_new_ir_op(void *ctx, ir_op *op) {
+       (void) ctx;
+       if (! status->stat_options)
+               return;
 
-  if (! status->enable)
-   return;
+       STAT_ENTER;
+       {
+               graph_entry_t *graph = graph_get_entry(NULL, status->irg_hash);
 
-  obstack_init(&status->cnts);
+               /* execute for side effect :-) */
+               (void)opcode_get_entry(op, graph->opcode_hash);
 
-  /* build the pseudo-ops */
-  _op_Phi0.code = --pseudo_id;
-  _op_Phi0.name = id_from_str(X("Phi0"));
+               pset_insert(status->ir_op_hash, op, op->code);
+       }
+       STAT_LEAVE;
+}  /* stat_new_ir_op */
 
-  _op_PhiM.code = --pseudo_id;
-  _op_PhiM.name = id_from_str(X("PhiM"));
+/**
+ * Hook: An IR op is freed.
+ *
+ * @param ctx  the hook context
+ * @param op   the IR opcode that is freed
+ */
+static void stat_free_ir_op(void *ctx, ir_op *op) {
+       (void) ctx;
+       (void) op;
+       if (! status->stat_options)
+               return;
+
+       STAT_ENTER;
+       {
+       }
+       STAT_LEAVE;
+}  /* stat_free_ir_op */
 
-  /* create the hash-tables */
-  status->irg_hash   = new_pset(graph_cmp, 8);
-  status->ir_op_hash = new_pset(opcode_cmp_2, 1);
+/**
+ * Hook: A new node is created.
+ *
+ * @param ctx   the hook context
+ * @param irg   the IR graph on which the node is created
+ * @param node  the new IR node that was created
+ */
+static void stat_new_node(void *ctx, ir_graph *irg, ir_node *node) {
+       (void) ctx;
+       (void) irg;
+       if (! status->stat_options)
+               return;
+
+       /* do NOT count during dead node elimination */
+       if (status->in_dead_node_elim)
+               return;
+
+       STAT_ENTER;
+       {
+               node_entry_t *entry;
+               graph_entry_t *graph;
+               ir_op *op = stat_get_irn_op(node);
+
+               /* increase global value */
+               graph = graph_get_entry(NULL, status->irg_hash);
+               entry = opcode_get_entry(op, graph->opcode_hash);
+               cnt_inc(&entry->new_node);
+
+               /* increase local value */
+               graph = graph_get_entry(current_ir_graph, status->irg_hash);
+               entry = opcode_get_entry(op, graph->opcode_hash);
+               cnt_inc(&entry->new_node);
+       }
+       STAT_LEAVE;
+}  /* stat_new_node */
 
-  status->op_Phi0    = &_op_Phi0;
-  status->op_PhiM    = &_op_PhiM;
+/**
+ * Hook: A node is changed into a Id node
+ *
+ * @param ctx   the hook context
+ * @param node  the IR node that will be turned into an ID
+ */
+static void stat_turn_into_id(void *ctx, ir_node *node) {
+       (void) ctx;
+       if (! status->stat_options)
+               return;
+
+       STAT_ENTER;
+       {
+               node_entry_t *entry;
+               graph_entry_t *graph;
+               ir_op *op = stat_get_irn_op(node);
+
+               /* increase global value */
+               graph = graph_get_entry(NULL, status->irg_hash);
+               entry = opcode_get_entry(op, graph->opcode_hash);
+               cnt_inc(&entry->into_Id);
+
+               /* increase local value */
+               graph = graph_get_entry(current_ir_graph, status->irg_hash);
+               entry = opcode_get_entry(op, graph->opcode_hash);
+               cnt_inc(&entry->into_Id);
+       }
+       STAT_LEAVE;
+}  /* stat_turn_into_id */
 
-  stat_register_dumper(&simple_dumper, "firmstat.txt");
-  stat_register_dumper(&csv_dumper, "firmstat.csv");
+/**
+ * Hook: A new graph was created
+ *
+ * @param ctx  the hook context
+ * @param irg  the new IR graph that was created
+ * @param ent  the entity of this graph
+ */
+static void stat_new_graph(void *ctx, ir_graph *irg, ir_entity *ent) {
+       (void) ctx;
+       if (! status->stat_options)
+               return;
+
+       STAT_ENTER;
+       {
+               /* execute for side effect :-) */
+               graph_entry_t * graph = graph_get_entry(irg, status->irg_hash);
+
+               graph->ent           = ent;
+               graph->is_deleted    = 0;
+               graph->is_leaf       = 0;
+               graph->is_leaf_call  = 0;
+               graph->is_recursive  = 0;
+               graph->is_chain_call = 0;
+               graph->is_strict     = 1;
+               graph->is_analyzed   = 0;
+       }
+       STAT_LEAVE;
+}  /* stat_new_graph */
 
-  /* initialize the pattern hash */
-  stat_init_pattern_history(enable_options & FIRMSTAT_PATTERN_ENABLED);
-#undef X
-}
+/**
+ * Hook: A graph will be deleted
+ *
+ * @param ctx  the hook context
+ * @param irg  the IR graph that will be deleted
+ *
+ * Note that we still hold the information for this graph
+ * in our hash maps, only a flag is set which prevents this
+ * information from being changed, it's "frozen" from now.
+ */
+static void stat_free_graph(void *ctx, ir_graph *irg) {
+       (void) ctx;
+       if (! status->stat_options)
+               return;
+
+       STAT_ENTER;
+       {
+               graph_entry_t *graph  = graph_get_entry(irg, status->irg_hash);
+               graph_entry_t *global = graph_get_entry(NULL, status->irg_hash);
+
+               graph->is_deleted = 1;
+
+               if (status->stat_options & FIRMSTAT_COUNT_DELETED) {
+                       /* count the nodes of the graph yet, it will be destroyed later */
+                       update_graph_stat(global, graph);
+               }  /* if */
+       }
+       STAT_LEAVE;
+}  /* stat_free_graph */
 
-/* A new IR op is registered. */
-void stat_new_ir_op(const ir_op *op)
+/**
+ * Hook: A walk over a graph is initiated. Do not count walks from statistic code.
+ *
+ * @param ctx  the hook context
+ * @param irg  the IR graph that will be walked
+ * @param pre  the pre walker
+ * @param post the post walker
+ */
+static void stat_irg_walk(void *ctx, ir_graph *irg, generic_func *pre, generic_func *post)
 {
-  if (! status->enable)
-    return;
-
-  STAT_ENTER;
-  {
-    graph_entry_t *graph = graph_get_entry(NULL, status->irg_hash);
+       (void) ctx;
+       (void) pre;
+       (void) post;
+       if (! status->stat_options)
+               return;
 
-    /* execute for side effect :-) */
-    opcode_get_entry(op, graph->opcode_hash);
+       STAT_ENTER_SINGLE;
+       {
+               graph_entry_t *graph = graph_get_entry(irg, status->irg_hash);
 
-    pset_insert(status->ir_op_hash, op, op->code);
-  }
-  STAT_LEAVE;
-}
+               cnt_inc(&graph->cnt[gcnt_acc_walked]);
+       }
+       STAT_LEAVE;
+}  /* stat_irg_walk */
 
-/* An IR op is freed. */
-void stat_free_ir_op(const ir_op *op)
+/**
+ * Hook: A walk over a graph in block-wise order is initiated. Do not count walks from statistic code.
+ *
+ * @param ctx  the hook context
+ * @param irg  the IR graph that will be walked
+ * @param pre  the pre walker
+ * @param post the post walker
+ */
+static void stat_irg_walk_blkwise(void *ctx, ir_graph *irg, generic_func *pre, generic_func *post)
 {
-  if (! status->enable)
-    return;
-
-  STAT_ENTER;
-  {
-  }
-  STAT_LEAVE;
-}
+       /* for now, do NOT differentiate between blockwise and normal */
+       stat_irg_walk(ctx, irg, pre, post);
+}  /* stat_irg_walk_blkwise */
 
-/* A new node is created. */
-void stat_new_node(const ir_node *node)
+/**
+ * Hook: A walk over the graph's blocks is initiated. Do not count walks from statistic code.
+ *
+ * @param ctx  the hook context
+ * @param irg  the IR graph that will be walked
+ * @param node the IR node
+ * @param pre  the pre walker
+ * @param post the post walker
+ */
+static void stat_irg_block_walk(void *ctx, ir_graph *irg, ir_node *node, generic_func *pre, generic_func *post)
 {
-  if (! status->enable)
-    return;
-
-  /* do NOT count during dead node elimination */
-  if (status->in_dead_node_elim > 0)
-    return;
-
-  STAT_ENTER;
-  {
-    node_entry_t *entry;
-    graph_entry_t *graph;
-    ir_op *op = stat_get_irn_op(node);
-
-    /* increase global value */
-    graph = graph_get_entry(NULL, status->irg_hash);
-    entry = opcode_get_entry(op, graph->opcode_hash);
-    cnt_inc(&entry->new_node);
-
-    /* increase local value */
-    graph = graph_get_entry(current_ir_graph, status->irg_hash);
-    entry = opcode_get_entry(op, graph->opcode_hash);
-    cnt_inc(&entry->new_node);
-  }
-  STAT_LEAVE;
-}
+       (void) ctx;
+       (void) node;
+       (void) pre;
+       (void) post;
+       if (! status->stat_options)
+               return;
+
+       STAT_ENTER_SINGLE;
+       {
+               graph_entry_t *graph = graph_get_entry(irg, status->irg_hash);
+
+               cnt_inc(&graph->cnt[gcnt_acc_walked_blocks]);
+       }
+       STAT_LEAVE;
+}  /* stat_irg_block_walk */
 
-/* A node is changed into a Id node */
-void stat_turn_into_id(const ir_node *node)
-{
-  if (! status->enable)
-    return;
-
-  STAT_ENTER;
-  {
-    node_entry_t *entry;
-    graph_entry_t *graph;
-    ir_op *op = stat_get_irn_op(node);
-
-    /* increase global value */
-    graph = graph_get_entry(NULL, status->irg_hash);
-    entry = opcode_get_entry(op, graph->opcode_hash);
-    cnt_inc(&entry->into_Id);
-
-    /* increase local value */
-    graph = graph_get_entry(current_ir_graph, status->irg_hash);
-    entry = opcode_get_entry(op, graph->opcode_hash);
-    cnt_inc(&entry->into_Id);
-  }
-  STAT_LEAVE;
-}
+/**
+ * Called for every node that is removed due to an optimization.
+ *
+ * @param n     the IR node that will be removed
+ * @param hmap  the hash map containing ir_op* -> opt_entry_t*
+ * @param kind  the optimization kind
+ */
+static void removed_due_opt(ir_node *n, hmap_opt_entry_t *hmap, hook_opt_kind kind) {
+       opt_entry_t *entry;
+       ir_op *op = stat_get_irn_op(n);
 
-/* A new graph was created */
-void stat_new_graph(ir_graph *irg, entity *ent)
-{
-  if (! status->enable)
-    return;
-
-  STAT_ENTER;
-  {
-    /* execute for side effect :-) */
-    graph_entry_t * graph = graph_get_entry(irg, status->irg_hash);
-
-    graph->ent     = ent;
-    graph->deleted = 0;
-  }
-  STAT_LEAVE;
-}
+       /* ignore CSE for Constants */
+       if (kind == HOOK_OPT_CSE && (is_Const(n) || is_SymConst(n)))
+               return;
 
-/*
- * A graph was deleted
+       /* increase global value */
+       entry = opt_get_entry(op, hmap);
+       cnt_inc(&entry->count);
+}  /* removed_due_opt */
+
+/**
+ * Hook: Some nodes were optimized into some others due to an optimization.
+ *
+ * @param ctx  the hook context
  */
-void stat_free_graph(ir_graph *irg)
+static void stat_merge_nodes(
+    void *ctx,
+    ir_node **new_node_array, int new_num_entries,
+    ir_node **old_node_array, int old_num_entries,
+    hook_opt_kind opt)
 {
-  if (! status->enable)
-    return;
+       (void) ctx;
+       if (! status->stat_options)
+               return;
+
+       STAT_ENTER;
+       {
+               int i, j;
+               graph_entry_t *graph = graph_get_entry(current_ir_graph, status->irg_hash);
+
+               cnt_inc(&status->num_opts[opt]);
+               if (status->reassoc_run)
+                       opt = HOOK_OPT_REASSOC;
+
+               for (i = 0; i < old_num_entries; ++i) {
+                       /* nodes might be in new and old, so if we found a node
+                          in both sets, this one  is NOT removed */
+                       for (j = 0; j < new_num_entries; ++j) {
+                               if (old_node_array[i] == new_node_array[j])
+                                       break;
+                       }  /* for */
+                       if (j >= new_num_entries) {
+                               int xopt = opt;
+
+                               /* sometimes we did not detect, that it is replaced by a Const */
+                               if (opt == HOOK_OPT_CONFIRM && new_num_entries == 1) {
+                                       ir_op *op = get_irn_op(new_node_array[0]);
+
+                                       if (op == op_Const || op == op_SymConst)
+                                               xopt = HOOK_OPT_CONFIRM_C;
+                               }  /* if */
+
+                               removed_due_opt(old_node_array[i], graph->opt_hash[xopt], xopt);
+                       }  /* if */
+               }  /* for */
+       }
+       STAT_LEAVE;
+}  /* stat_merge_nodes */
 
-  STAT_ENTER;
-  {
-    graph_entry_t *graph  = graph_get_entry(irg, status->irg_hash);
-    graph_entry_t *global = graph_get_entry(NULL, status->irg_hash);
+/**
+ * Hook: Reassociation is started/stopped.
+ *
+ * @param ctx   the hook context
+ * @param flag  if non-zero, reassociation is started else stopped
+ */
+static void stat_reassociate(void *ctx, int flag) {
+       (void) ctx;
+       if (! status->stat_options)
+               return;
+
+       STAT_ENTER;
+       {
+               status->reassoc_run = flag;
+       }
+       STAT_LEAVE;
+}  /* stat_reassociate */
 
-    graph->deleted = 1;
+/**
+ * Hook: A node was lowered into other nodes
+ *
+ * @param ctx  the hook context
+ * @param node the IR node that will be lowered
+ */
+static void stat_lower(void *ctx, ir_node *node) {
+       (void) ctx;
+       if (! status->stat_options)
+               return;
 
-    /* count the nodes of the graph yet, it will be destroyed later */
-    count_nodes_in_graph(global, graph);
+       STAT_ENTER;
+       {
+               graph_entry_t *graph = graph_get_entry(current_ir_graph, status->irg_hash);
 
-    /* calculate the pattern */
-    stat_calc_pattern_history(irg);
-  }
-  STAT_LEAVE;
-}
+               removed_due_opt(node, graph->opt_hash[HOOK_LOWERED], HOOK_LOWERED);
+       }
+       STAT_LEAVE;
+}  /* stat_lower */
 
-/*
- * A walk over a graph is initiated. Do not count walks from statistic code.
+/**
+ * Hook: A graph was inlined.
+ *
+ * @param ctx  the hook context
+ * @param call the IR call that will re changed into the body of
+ *             the called IR graph
+ * @param called_irg  the IR graph representing the called routine
  */
-void stat_irg_walk(ir_graph *irg, void *pre, void *post)
+static void stat_inline(void *ctx, ir_node *call, ir_graph *called_irg)
 {
-  if (! status->enable)
-    return;
+       (void) ctx;
+       if (! status->stat_options)
+               return;
+
+       STAT_ENTER;
+       {
+               ir_graph *irg = get_irn_irg(call);
+               graph_entry_t *i_graph = graph_get_entry(called_irg, status->irg_hash);
+               graph_entry_t *graph   = graph_get_entry(irg, status->irg_hash);
+
+               cnt_inc(&graph->cnt[gcnt_acc_got_inlined]);
+               cnt_inc(&i_graph->cnt[gcnt_acc_was_inlined]);
+       }
+       STAT_LEAVE;
+}  /* stat_inline */
 
-  STAT_ENTER_SINGLE;
-  {
-    graph_entry_t *graph = graph_get_entry(irg, status->irg_hash);
+/**
+ * Hook: A graph with tail-recursions was optimized.
+ *
+ * @param ctx  the hook context
+ */
+static void stat_tail_rec(void *ctx, ir_graph *irg, int n_calls) {
+       (void) ctx;
+       if (! status->stat_options)
+               return;
 
-    cnt_inc(&graph->cnt_walked);
-  }
-  STAT_LEAVE;
-}
+       STAT_ENTER;
+       {
+               graph_entry_t *graph = graph_get_entry(irg, status->irg_hash);
 
-/*
- * A walk over a graph in block-wise order is initiated. Do not count walks from statistic code.
- */
-void stat_irg_walk_blkwise(ir_graph *irg, void *pre, void *post)
-{
-  /* for now, do NOT differentiate between blockwise and normal */
-  stat_irg_walk(irg, pre, post);
-}
+               graph->num_tail_recursion += n_calls;
+       }
+       STAT_LEAVE;
+}  /* stat_tail_rec */
 
-/*
- * A walk over the graph's blocks is initiated. Do not count walks from statistic code.
+/**
+ * Strength reduction was performed on an iteration variable.
+ *
+ * @param ctx  the hook context
  */
-void stat_irg_block_walk(ir_graph *irg, const ir_node *node, void *pre, void *post)
-{
-  if (! status->enable)
-    return;
+static void stat_strength_red(void *ctx, ir_graph *irg, ir_node *strong) {
+       (void) ctx;
+       if (! status->stat_options)
+               return;
 
-  STAT_ENTER_SINGLE;
-  {
-    graph_entry_t *graph = graph_get_entry(irg, status->irg_hash);
+       STAT_ENTER;
+       {
+               graph_entry_t *graph = graph_get_entry(irg, status->irg_hash);
+               cnt_inc(&graph->cnt[gcnt_acc_strength_red]);
 
-    cnt_inc(&graph->cnt_walked_blocks);
-  }
-  STAT_LEAVE;
-}
+               removed_due_opt(strong, graph->opt_hash[HOOK_OPT_STRENGTH_RED], HOOK_OPT_STRENGTH_RED);
+       }
+       STAT_LEAVE;
+}  /* stat_strength_red */
 
 /**
- * called for every node that is removed due to an optimization
+ * Hook: Start/Stop the dead node elimination.
+ *
+ * @param ctx  the hook context
  */
-static void removed_due_opt(ir_node *n, pset *set)
-{
-  ir_op *op          = get_irn_op(n);
-  opt_entry_t *entry = opt_get_entry(op, set);
+static void stat_dead_node_elim(void *ctx, ir_graph *irg, int start) {
+       (void) ctx;
+       (void) irg;
+       if (! status->stat_options)
+               return;
 
-  /* increase global value */
-  cnt_inc(&entry->count);
-}
+       status->in_dead_node_elim = (start != 0);
+}  /* stat_dead_node_elim */
 
-/*
- * Some nodes were optimized into some others due to an optimization
+/**
+ * Hook: if-conversion was tried.
  */
-void stat_merge_nodes(
-    ir_node **new_node_array, int new_num_entries,
-    ir_node **old_node_array, int old_num_entries,
-    stat_opt_kind opt)
+static void stat_if_conversion(void *context, ir_graph *irg, ir_node *phi,
+                               int pos, ir_node *mux, if_result_t reason)
 {
-  if (! status->enable)
-    return;
-
-  STAT_ENTER;
-  {
-    int i, j;
-    graph_entry_t *graph = graph_get_entry(current_ir_graph, status->irg_hash);
-
-    for (i = 0; i < old_num_entries; ++i) {
-      for (j = 0; j < new_num_entries; ++j)
-        if (old_node_array[i] == new_node_array[j])
-          break;
-
-      /* nodes might be in new and old, these are NOT removed */
-      if (j >= new_num_entries) {
-        removed_due_opt(old_node_array[i], graph->opt_hash[opt]);
-      }
-    }
-  }
-  STAT_LEAVE;
-}
+       (void) context;
+       (void) phi;
+       (void) pos;
+       (void) mux;
+       if (! status->stat_options)
+               return;
+
+       STAT_ENTER;
+       {
+               graph_entry_t *graph = graph_get_entry(irg, status->irg_hash);
+
+               cnt_inc(&graph->cnt[gcnt_if_conv + reason]);
+       }
+       STAT_LEAVE;
+}  /* stat_if_conversion */
 
-/*
- * A node was lowered into other nodes
+/**
+ * Hook: real function call was optimized.
  */
-void stat_lower(ir_node *node)
+static void stat_func_call(void *context, ir_graph *irg, ir_node *call)
 {
-  if (! status->enable)
-    return;
+       (void) context;
+       (void) call;
+       if (! status->stat_options)
+               return;
 
-  STAT_ENTER;
-  {
-    graph_entry_t *graph = graph_get_entry(current_ir_graph, status->irg_hash);
+       STAT_ENTER;
+       {
+               graph_entry_t *graph = graph_get_entry(irg, status->irg_hash);
 
-    removed_due_opt(node, graph->opt_hash[STAT_LOWERED]);
-  }
-  STAT_LEAVE;
-}
+               cnt_inc(&graph->cnt[gcnt_acc_real_func_call]);
+       }
+       STAT_LEAVE;
+}  /* stat_func_call */
 
-/*
- * A graph was inlined
+/**
+ * Hook: A multiply was replaced by a series of Shifts/Adds/Subs.
+ *
+ * @param ctx  the hook context
  */
-void stat_inline(ir_node *call, ir_graph *called_irg)
-{
-  if (! status->enable)
-    return;
-
-  STAT_ENTER;
-  {
-    ir_graph *irg = get_irn_irg(call);
-    graph_entry_t *i_graph = graph_get_entry(called_irg, status->irg_hash);
-    graph_entry_t *graph   = graph_get_entry(irg, status->irg_hash);
-
-    cnt_inc(&graph->cnt_got_inlined);
-    cnt_inc(&i_graph->cnt_was_inlined);
-  }
-  STAT_LEAVE;
-}
+static void stat_arch_dep_replace_mul_with_shifts(void *ctx, ir_node *mul) {
+       (void) ctx;
+       if (! status->stat_options)
+               return;
+
+       STAT_ENTER;
+       {
+               graph_entry_t *graph = graph_get_entry(current_ir_graph, status->irg_hash);
+               removed_due_opt(mul, graph->opt_hash[HOOK_OPT_ARCH_DEP], HOOK_OPT_ARCH_DEP);
+       }
+       STAT_LEAVE;
+}  /* stat_arch_dep_replace_mul_with_shifts */
 
-/*
- * Start the dead node elimination.
+/**
+ * Hook: A division by const was replaced.
+ *
+ * @param ctx   the hook context
+ * @param node  the division node that will be optimized
  */
-void stat_dead_node_elim_start(ir_graph *irg)
-{
-  if (! status->enable)
-    return;
-
-  ++status->in_dead_node_elim;
-}
+static void stat_arch_dep_replace_division_by_const(void *ctx, ir_node *node) {
+       (void) ctx;
+       if (! status->stat_options)
+               return;
+
+       STAT_ENTER;
+       {
+               graph_entry_t *graph = graph_get_entry(current_ir_graph, status->irg_hash);
+               removed_due_opt(node, graph->opt_hash[HOOK_OPT_ARCH_DEP], HOOK_OPT_ARCH_DEP);
+       }
+       STAT_LEAVE;
+}  /* stat_arch_dep_replace_division_by_const */
 
 /*
- * Stops the dead node elimination.
+ * Update the register pressure of a block.
+ *
+ * @param irg        the irg containing the block
+ * @param block      the block for which the reg pressure should be set
+ * @param pressure   the pressure
+ * @param class_name the name of the register class
  */
-void stat_dead_node_elim_stop(ir_graph *irg)
+void stat_be_block_regpressure(ir_graph *irg, ir_node *block, int pressure, const char *class_name)
 {
-  if (! status->enable)
-    return;
+       if (! status->stat_options)
+               return;
 
-  --status->in_dead_node_elim;
-}
-
-/* Finish the statistics */
-void stat_finish(void)
-{
-  if (! status->enable)
-    return;
+       STAT_ENTER;
+       {
+               graph_entry_t        *graph = graph_get_entry(irg, status->irg_hash);
+               be_block_entry_t     *block_ent;
+               reg_pressure_entry_t *rp_ent;
 
-  STAT_ENTER;
-  {
-    graph_entry_t *entry;
-    graph_entry_t *global = graph_get_entry(NULL, status->irg_hash);
+               block_ent = be_block_get_entry(&status->be_data, get_irn_node_nr(block), graph->be_block_hash);
+               rp_ent    = obstack_alloc(&status->be_data, sizeof(*rp_ent));
+               memset(rp_ent, 0, sizeof(*rp_ent));
 
-    /* dump per graph */
-    for (entry = pset_first(status->irg_hash); entry; entry = pset_next(status->irg_hash)) {
+               rp_ent->class_name = class_name;
+               rp_ent->pressure   = pressure;
 
-      if (entry->irg == NULL) {
-        /* special entry for the global count */
-        continue;
-      }
+               pset_insert(block_ent->reg_pressure, rp_ent, HASH_PTR(class_name));
+       }
+       STAT_LEAVE;
+}  /* stat_be_block_regpressure */
 
-      if (! entry->deleted) {
-        /* the graph is still alive, count the nodes on it */
-        count_nodes_in_graph(global, entry);
+/**
+ * Update the distribution of ready nodes of a block
+ *
+ * @param irg        the irg containing the block
+ * @param block      the block for which the reg pressure should be set
+ * @param num_ready  the number of ready nodes
+ */
+void stat_be_block_sched_ready(ir_graph *irg, ir_node *block, int num_ready)
+{
+       if (! status->stat_options)
+               return;
 
-        /* calculate the pattern */
-        stat_calc_pattern_history(entry->irg);
-      }
+       STAT_ENTER;
+       {
+               graph_entry_t    *graph = graph_get_entry(irg, status->irg_hash);
+               be_block_entry_t *block_ent;
 
-      dump_graph(entry);
-    }
+               block_ent = be_block_get_entry(&status->be_data, get_irn_node_nr(block), graph->be_block_hash);
 
-    /* dump global */
-    dump_graph(global);
-    dump_finish();
+               /* increase the counter of corresponding number of ready nodes */
+               stat_inc_int_distrib_tbl(block_ent->sched_ready, num_ready);
+       }
+       STAT_LEAVE;
+}  /* stat_be_block_sched_ready */
 
-    stat_finish_pattern_history();
+/**
+ * Update the permutation statistic of a block.
+ *
+ * @param class_name the name of the register class
+ * @param n_regs     number of registers in the register class
+ * @param perm       the perm node
+ * @param block      the block containing the perm
+ * @param size       the size of the perm
+ * @param real_size  number of pairs with different registers
+ */
+void stat_be_block_stat_perm(const char *class_name, int n_regs, ir_node *perm, ir_node *block,
+                             int size, int real_size)
+{
+       if (! status->stat_options)
+               return;
 
-    /* finished */
-    status->enable = 0;
-  }
-  STAT_LEAVE;
-}
+       STAT_ENTER;
+       {
+               graph_entry_t      *graph = graph_get_entry(get_irn_irg(block), status->irg_hash);
+               be_block_entry_t   *block_ent;
+               perm_class_entry_t *pc_ent;
+               perm_stat_entry_t  *ps_ent;
 
-#else
+               block_ent = be_block_get_entry(&status->be_data, get_irn_node_nr(block), graph->be_block_hash);
+               pc_ent    = perm_class_get_entry(&status->be_data, class_name, block_ent->perm_class_stat);
+               ps_ent    = perm_stat_get_entry(&status->be_data, perm, pc_ent->perm_stat);
 
-/* need this for prototypes */
-#define FIRM_STATISTICS
-#include "firmstat.h"
+               pc_ent->n_regs = n_regs;
 
-void stat_init(void) {}
+               /* update information */
+               ps_ent->size      = size;
+               ps_ent->real_size = real_size;
+       }
+       STAT_LEAVE;
+}  /* stat_be_block_stat_perm */
 
-void stat_finish(void) {}
+/**
+ * Update the permutation statistic of a single perm.
+ *
+ * @param class_name the name of the register class
+ * @param perm       the perm node
+ * @param block      the block containing the perm
+ * @param is_chain   1 if chain, 0 if cycle
+ * @param size       length of the cycle/chain
+ * @param n_ops      the number of ops representing this cycle/chain after lowering
+ */
+void stat_be_block_stat_permcycle(const char *class_name, ir_node *perm, ir_node *block,
+                                  int is_chain, int size, int n_ops)
+{
+       if (! status->stat_options)
+               return;
+
+       STAT_ENTER;
+       {
+               graph_entry_t      *graph = graph_get_entry(get_irn_irg(block), status->irg_hash);
+               be_block_entry_t   *block_ent;
+               perm_class_entry_t *pc_ent;
+               perm_stat_entry_t  *ps_ent;
+
+               block_ent = be_block_get_entry(&status->be_data, get_irn_node_nr(block), graph->be_block_hash);
+               pc_ent    = perm_class_get_entry(&status->be_data, class_name, block_ent->perm_class_stat);
+               ps_ent    = perm_stat_get_entry(&status->be_data, perm, pc_ent->perm_stat);
+
+               if (is_chain) {
+                       ps_ent->n_copies += n_ops;
+                       stat_inc_int_distrib_tbl(ps_ent->chains, size);
+               } else {
+                       ps_ent->n_exchg += n_ops;
+                       stat_inc_int_distrib_tbl(ps_ent->cycles, size);
+               }  /* if */
+       }
+       STAT_LEAVE;
+}  /* stat_be_block_stat_permcycle */
+
+/* Dumps a statistics snapshot. */
+void stat_dump_snapshot(const char *name, const char *phase)
+{
+       char fname[2048];
+       const char *p;
+       int l;
+
+       if (! status->stat_options)
+               return;
+
+       STAT_ENTER;
+       {
+               graph_entry_t *entry;
+               graph_entry_t *global = graph_get_entry(NULL, status->irg_hash);
+
+               /*
+                * The constant counter is only global, so we clear it here.
+                * Note that it does NOT contain the constants in DELETED
+                * graphs due to this.
+                */
+               if (status->stat_options & FIRMSTAT_COUNT_CONSTS)
+                       stat_const_clear(status);
+
+               /* build the name */
+               p = strrchr(name, '/');
+#ifdef _WIN32
+               {
+                       const char *q;
+
+                       q = strrchr(name, '\\');
+
+                       /* NULL might be not the smallest pointer */
+                       if (q && (!p || q > p))
+                               p = q;
+               }
+#endif /* _WIN32 */
+               if (p) {
+                       ++p;
+                       l = p - name;
+
+                       if (l > (int) (sizeof(fname) - 1))
+                               l = sizeof(fname) - 1;
+
+                       memcpy(fname, name, l);
+                       fname[l] = '\0';
+               } else {
+                       fname[0] = '\0';
+                       p = name;
+               }  /* if */
+               strncat(fname, "firmstat-", sizeof(fname));
+               strncat(fname, phase, sizeof(fname));
+               strncat(fname, "-", sizeof(fname));
+               strncat(fname, p, sizeof(fname));
+
+               stat_dump_init(fname);
+
+               /* calculate the graph statistics */
+               for (entry = pset_first(status->irg_hash); entry; entry = pset_next(status->irg_hash)) {
+                       if (entry->irg == NULL) {
+                               /* special entry for the global count */
+                               continue;
+                       }  /* if */
+                       if (! entry->is_deleted) {
+                               /* the graph is still alive, count the nodes on it */
+                               update_graph_stat(global, entry);
+                       }  /* if */
+               }  /* for */
+
+               /* some calculations are dependent, we pushed them on the wait_q */
+               while (! pdeq_empty(status->wait_q)) {
+                       entry = pdeq_getr(status->wait_q);
+
+                       update_graph_stat_2(global, entry);
+               }  /* while */
+
+               /* dump per graph */
+               for (entry = pset_first(status->irg_hash); entry; entry = pset_next(status->irg_hash)) {
+                       if (entry->irg == NULL) {
+                               /* special entry for the global count */
+                               continue;
+                       }  /* if */
+
+                       if (! entry->is_deleted || status->stat_options & FIRMSTAT_COUNT_DELETED) {
+                               stat_dump_graph(entry);
+                               stat_dump_registered(entry);
+                       }  /* if */
+
+                       if (! entry->is_deleted) {
+                               /* clear the counter that are not accumulated */
+                               graph_clear_entry(entry, 0);
+                       }  /* if */
+               }  /* for */
+
+               /* dump global */
+               stat_dump_graph(global);
+
+               /* dump the const info */
+               if (status->stat_options & FIRMSTAT_COUNT_CONSTS)
+                       stat_dump_consts(&status->const_info);
+
+               /* dump the parameter distribution */
+               stat_dump_param_tbl(status->dist_param_cnt, global);
+
+               /* dump the optimization counter and clear them */
+               stat_dump_opt_cnt(status->num_opts, ARR_SIZE(status->num_opts));
+               clear_optimization_counter();
+
+               stat_dump_finish();
+
+               stat_finish_pattern_history(fname);
+
+               /* clear the global counter here */
+               {
+                       node_entry_t *entry;
+
+                       for (entry = pset_first(global->opcode_hash); entry; entry = pset_next(global->opcode_hash)) {
+                               opcode_clear_entry(entry);
+                       }  /* for */
+                       /* clear all global counter */
+                       graph_clear_entry(global, 1);
+               }
+       }
+       STAT_LEAVE;
+}  /* stat_dump_snapshot */
+
+/** the hook entries for the Firm statistics module */
+static hook_entry_t stat_hooks[hook_last];
 
-void stat_new_ir_op(const ir_op *op) {}
+/* initialize the statistics module. */
+void firm_init_stat(unsigned enable_options)
+{
+#define X(a)  a, sizeof(a)-1
+#define HOOK(h, fkt) \
+       stat_hooks[h].hook._##h = fkt; register_hook(h, &stat_hooks[h])
+       unsigned num = 0;
+
+       if (! (enable_options & FIRMSTAT_ENABLED))
+               return;
+
+       status = XMALLOCZ(stat_info_t);
+
+       /* enable statistics */
+       status->stat_options = enable_options & FIRMSTAT_ENABLED ? enable_options : 0;
+
+       /* register all hooks */
+       HOOK(hook_new_ir_op,                          stat_new_ir_op);
+       HOOK(hook_free_ir_op,                         stat_free_ir_op);
+       HOOK(hook_new_node,                           stat_new_node);
+       HOOK(hook_turn_into_id,                       stat_turn_into_id);
+       HOOK(hook_new_graph,                          stat_new_graph);
+       HOOK(hook_free_graph,                         stat_free_graph);
+       HOOK(hook_irg_walk,                           stat_irg_walk);
+       HOOK(hook_irg_walk_blkwise,                   stat_irg_walk_blkwise);
+       HOOK(hook_irg_block_walk,                     stat_irg_block_walk);
+       HOOK(hook_merge_nodes,                        stat_merge_nodes);
+       HOOK(hook_reassociate,                        stat_reassociate);
+       HOOK(hook_lower,                              stat_lower);
+       HOOK(hook_inline,                             stat_inline);
+       HOOK(hook_tail_rec,                           stat_tail_rec);
+       HOOK(hook_strength_red,                       stat_strength_red);
+       HOOK(hook_dead_node_elim,                     stat_dead_node_elim);
+       HOOK(hook_if_conversion,                      stat_if_conversion);
+       HOOK(hook_func_call,                          stat_func_call);
+       HOOK(hook_arch_dep_replace_mul_with_shifts,   stat_arch_dep_replace_mul_with_shifts);
+       HOOK(hook_arch_dep_replace_division_by_const, stat_arch_dep_replace_division_by_const);
+
+       obstack_init(&status->cnts);
+       obstack_init(&status->be_data);
+
+       /* create the hash-tables */
+       status->irg_hash   = new_pset(graph_cmp, 8);
+       status->ir_op_hash = new_pset(opcode_cmp_2, 1);
+
+       /* create the wait queue */
+       status->wait_q     = new_pdeq();
+
+       if (enable_options & FIRMSTAT_COUNT_STRONG_OP) {
+               /* build the pseudo-ops */
+
+               _op_Phi0.code    = --num;
+               _op_Phi0.name    = new_id_from_chars(X("Phi0"));
+
+               _op_PhiM.code    = --num;
+               _op_PhiM.name    = new_id_from_chars(X("PhiM"));
+
+               _op_ProjM.code   = --num;
+               _op_ProjM.name   = new_id_from_chars(X("ProjM"));
+
+               _op_MulC.code    = --num;
+               _op_MulC.name    = new_id_from_chars(X("MulC"));
+
+               _op_DivC.code    = --num;
+               _op_DivC.name    = new_id_from_chars(X("DivC"));
+
+               _op_ModC.code    = --num;
+               _op_ModC.name    = new_id_from_chars(X("ModC"));
+
+               _op_DivModC.code = --num;
+               _op_DivModC.name = new_id_from_chars(X("DivModC"));
+
+               _op_QuotC.code   = --num;
+               _op_QuotC.name   = new_id_from_chars(X("QuotC"));
+
+               status->op_Phi0    = &_op_Phi0;
+               status->op_PhiM    = &_op_PhiM;
+               status->op_ProjM   = &_op_ProjM;
+               status->op_MulC    = &_op_MulC;
+               status->op_DivC    = &_op_DivC;
+               status->op_ModC    = &_op_ModC;
+               status->op_DivModC = &_op_DivModC;
+               status->op_QuotC   = &_op_QuotC;
+       } else {
+               status->op_Phi0    = NULL;
+               status->op_PhiM    = NULL;
+               status->op_ProjM   = NULL;
+               status->op_MulC    = NULL;
+               status->op_DivC    = NULL;
+               status->op_ModC    = NULL;
+               status->op_DivModC = NULL;
+               status->op_QuotC   = NULL;
+       }  /* if */
+
+       /* for Florian: count the Sel depth */
+       if (enable_options & FIRMSTAT_COUNT_SELS) {
+               _op_SelSel.code    = --num;
+               _op_SelSel.name    = new_id_from_chars(X("Sel(Sel)"));
+
+               _op_SelSelSel.code = --num;
+               _op_SelSelSel.name = new_id_from_chars(X("Sel(Sel(Sel))"));
+
+               status->op_SelSel    = &_op_SelSel;
+               status->op_SelSelSel = &_op_SelSelSel;
+       } else {
+               status->op_SelSel    = NULL;
+               status->op_SelSelSel = NULL;
+       }  /* if */
+
+       /* register the dumper */
+       stat_register_dumper(&simple_dumper);
+
+       if (enable_options & FIRMSTAT_CSV_OUTPUT)
+               stat_register_dumper(&csv_dumper);
+
+       /* initialize the pattern hash */
+       stat_init_pattern_history(enable_options & FIRMSTAT_PATTERN_ENABLED);
+
+       /* initialize the Const options */
+       if (enable_options & FIRMSTAT_COUNT_CONSTS)
+               stat_init_const_cnt(status);
+
+       /* distribution table for parameter counts */
+       status->dist_param_cnt = stat_new_int_distrib_tbl();
+
+       clear_optimization_counter();
+
+#undef HOOK
+#undef X
+}  /* firm_init_stat */
 
-void stat_free_ir_op(const ir_op *op) {}
+/**
+ * Frees all dumper structures.
+ */
+static void stat_term_dumper(void) {
+       dumper_t *dumper, *next_dumper;
 
-void stat_new_node(const ir_node *node) {}
+       for (dumper = status->dumper; dumper; /* iteration done in loop body */ ) {
+               if (dumper->func_map)
+                       del_pset(dumper->func_map);
 
-void stat_turn_into_id(const ir_node *node) {}
+               next_dumper = dumper->next;
+               free(dumper);
+               dumper = next_dumper;
+       }  /* for */
+}  /* stat_term_dumper */
 
-void stat_new_graph(ir_graph *irg, entity *ent) {}
 
-void stat_free_graph(ir_graph *irg) {}
+/* Terminates the statistics module, frees all memory. */
+void stat_term(void) {
+       if (status != (stat_info_t *)&status_disable) {
+               obstack_free(&status->be_data, NULL);
+               obstack_free(&status->cnts, NULL);
 
-void stat_irg_walk(ir_graph *irg, void *pre, void *post) {}
+               stat_term_dumper();
 
-void stat_irg_block_walk(ir_graph *irg, const ir_node *node, void *pre, void *post) {}
+               xfree(status);
+               status = (stat_info_t *)&status_disable;
+       }
+}  /* stat_term */
 
-void stat_merge_nodes(
-    ir_node **new_node_array, int new_num_entries,
-    ir_node **old_node_array, int old_num_entries,
-    stat_opt_kind opt) {}
+/* returns 1 if statistics were initialized, 0 otherwise */
+int stat_is_active(void) {
+       return status != (stat_info_t *)&status_disable;
+}  /* stat_is_active */
 
-void stat_lower(ir_node *node) {}
+#else
 
-void stat_inline(ir_node *call, ir_graph *irg) {}
+/* initialize the statistics module. */
+void firm_init_stat(unsigned enable_options) {}
 
-void stat_dead_node_elim_start(ir_graph *irg) {}
+/* Dumps a statistics snapshot */
+void stat_dump_snapshot(const char *name, const char *phase) {}
 
-void stat_dead_node_elim_stop(ir_graph *irg) {}
+/* terminates the statistics module, frees all memory */
+void stat_term(void);
 
-#endif
+#endif /* FIRM_STATISTICS */