X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fstat%2Ffirmstat.c;h=8ae906b9a8f84be932073bc53695f642ff178a8d;hb=04321ea9f9ac1185bd7092813c34683aa15cd05f;hp=7da8c79eba9957098ca30ace081e0d056a5f9524;hpb=c848ba85e08b26de97a2a64cc4e15d082929a81c;p=libfirm

diff --git a/ir/stat/firmstat.c b/ir/stat/firmstat.c
index 7da8c79eb..8ae906b9a 100644
--- a/ir/stat/firmstat.c
+++ b/ir/stat/firmstat.c
@@ -23,25 +23,19 @@
  * @author  Michael Beck
  * @version $Id$
  */
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
+#include "config.h"
 
 #ifdef FIRM_STATISTICS
 
 #include <stdio.h>
-
-#ifdef HAVE_STDLIB_H
-# include <stdlib.h>
-#endif
-#ifdef HAVE_STRING_H
-# include <string.h>
-#endif
+#include <stdlib.h>
+#include <string.h>
 
 #include "irouts.h"
 #include "irdump.h"
 #include "hashptr.h"
 #include "firmstat_t.h"
+#include "irpass_t.h"
 #include "pattern.h"
 #include "dags.h"
 #include "stat_dmp.h"
@@ -105,7 +99,8 @@ static stat_info_t *status = (stat_info_t *)&status_disable;
 /**
  * Compare two elements of the opcode hash.
  */
-static int opcode_cmp(const void *elt, const void *key) {
+static int opcode_cmp(const void *elt, const void *key)
+{
 	const node_entry_t *e1 = elt;
 	const node_entry_t *e2 = key;
 
@@ -115,7 +110,8 @@ static int opcode_cmp(const void *elt, const void *key) {
 /**
  * Compare two elements of the graph hash.
  */
-static int graph_cmp(const void *elt, const void *key) {
+static int graph_cmp(const void *elt, const void *key)
+{
 	const graph_entry_t *e1 = elt;
 	const graph_entry_t *e2 = key;
 
@@ -125,7 +121,8 @@ static int graph_cmp(const void *elt, const void *key) {
 /**
  * Compare two elements of the optimization hash.
  */
-static int opt_cmp(const void *elt, const void *key) {
+static int opt_cmp(const void *elt, const void *key)
+{
 	const opt_entry_t *e1 = elt;
 	const opt_entry_t *e2 = key;
 
@@ -135,7 +132,8 @@ static int opt_cmp(const void *elt, const void *key) {
 /**
  * Compare two elements of the block/extbb hash.
  */
-static int block_cmp(const void *elt, const void *key) {
+static int block_cmp(const void *elt, const void *key)
+{
 	const block_entry_t *e1 = elt;
 	const block_entry_t *e2 = key;
 
@@ -146,7 +144,8 @@ static int block_cmp(const void *elt, const void *key) {
 /**
  * Compare two elements of the be_block hash.
  */
-static int be_block_cmp(const void *elt, const void *key) {
+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;
 
@@ -156,7 +155,8 @@ static int be_block_cmp(const void *elt, const void *key) {
 /**
  * Compare two elements of reg pressure hash.
  */
-static int reg_pressure_cmp(const void *elt, const void *key) {
+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;
 
@@ -166,7 +166,8 @@ static int reg_pressure_cmp(const void *elt, const void *key) {
 /**
  * Compare two elements of the perm_stat hash.
  */
-static int perm_stat_cmp(const void *elt, const void *key) {
+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;
 
@@ -176,7 +177,8 @@ static int perm_stat_cmp(const void *elt, const void *key) {
 /**
  * Compare two elements of the perm_class hash.
  */
-static int perm_class_cmp(const void *elt, const void *key) {
+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;
 
@@ -186,7 +188,8 @@ static int perm_class_cmp(const void *elt, const void *key) {
 /**
  * Compare two elements of the ir_op hash.
  */
-static int opcode_cmp_2(const void *elt, const void *key) {
+static int opcode_cmp_2(const void *elt, const void *key)
+{
 	const ir_op *e1 = elt;
 	const ir_op *e2 = key;
 
@@ -196,7 +199,8 @@ static int opcode_cmp_2(const void *elt, const void *key) {
 /**
  * Compare two elements of the address_mark set.
  */
-static int address_mark_cmp(const void *elt, const void *key, size_t size) {
+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;
@@ -208,19 +212,23 @@ static int address_mark_cmp(const void *elt, const void *key, size_t size) {
 /**
  * Clear all counter in a node_entry_t.
  */
-static void opcode_clear_entry(node_entry_t *elem) {
+static void opcode_clear_entry(node_entry_t *elem)
+{
 	cnt_clr(&elem->cnt_alive);
 	cnt_clr(&elem->new_node);
 	cnt_clr(&elem->into_Id);
+	cnt_clr(&elem->normalized);
 }  /* opcode_clear_entry */
 
 /**
- * Returns the associates node_entry_t for an ir_op
+ * Returns the associates node_entry_t for an ir_op (and allocates
+ * one if not yet available).
  *
  * @param op    the IR operation
  * @param hmap  a hash map containing ir_op* -> node_entry_t*
  */
-static node_entry_t *opcode_get_entry(const ir_op *op, hmap_node_entry_t *hmap) {
+static node_entry_t *opcode_get_entry(const ir_op *op, hmap_node_entry_t *hmap)
+{
 	node_entry_t key;
 	node_entry_t *elem;
 
@@ -230,8 +238,7 @@ static node_entry_t *opcode_get_entry(const ir_op *op, hmap_node_entry_t *hmap)
 	if (elem)
 		return elem;
 
-	elem = obstack_alloc(&status->cnts, sizeof(*elem));
-	memset(elem, 0, sizeof(*elem));
+	elem = OALLOCZ(&status->cnts, node_entry_t);
 
 	/* clear counter */
 	opcode_clear_entry(elem);
@@ -247,7 +254,8 @@ static node_entry_t *opcode_get_entry(const ir_op *op, hmap_node_entry_t *hmap)
  * @param code  the IR opcode
  * @param hmap  the hash map containing opcode -> ir_op*
  */
-static ir_op *opcode_find_entry(ir_opcode code, hmap_ir_op *hmap) {
+static ir_op *opcode_find_entry(ir_opcode code, hmap_ir_op *hmap)
+{
 	ir_op key;
 
 	key.code = code;
@@ -260,7 +268,8 @@ static ir_op *opcode_find_entry(ir_opcode code, hmap_ir_op *hmap) {
  * @param elem  the graph entry
  * @param all   if non-zero, clears all counters, else leave accumulated ones
  */
-static void graph_clear_entry(graph_entry_t *elem, int all) {
+static void graph_clear_entry(graph_entry_t *elem, int all)
+{
 	int i;
 
 	/* clear accumulated / non-accumulated counter */
@@ -285,7 +294,7 @@ static void graph_clear_entry(graph_entry_t *elem, int all) {
 /**
  * Returns the associated graph_entry_t for an IR graph.
  *
- * @param irg   the IR graph
+ * @param irg   the IR graph, NULL for the global counter
  * @param hmap  the hash map containing ir_graph* -> graph_entry_t*
  */
 static graph_entry_t *graph_get_entry(ir_graph *irg, hmap_graph_entry_t *hmap)
@@ -307,8 +316,7 @@ static graph_entry_t *graph_get_entry(ir_graph *irg, hmap_graph_entry_t *hmap)
 	}  /* if */
 
 	/* allocate a new one */
-	elem = obstack_alloc(&status->cnts, sizeof(*elem));
-	memset(elem, 0, sizeof(*elem));
+	elem = OALLOCZ(&status->cnts, graph_entry_t);
 	obstack_init(&elem->recalc_cnts);
 
 	/* clear counter */
@@ -332,7 +340,8 @@ static graph_entry_t *graph_get_entry(ir_graph *irg, hmap_graph_entry_t *hmap)
 /**
  * Clear all counter in an opt_entry_t.
  */
-static void opt_clear_entry(opt_entry_t *elem) {
+static void opt_clear_entry(opt_entry_t *elem)
+{
 	cnt_clr(&elem->count);
 }  /* opt_clear_entry */
 
@@ -353,8 +362,7 @@ static opt_entry_t *opt_get_entry(const ir_op *op, hmap_opt_entry_t *hmap)
 	if (elem)
 		return elem;
 
-	elem = obstack_alloc(&status->cnts, sizeof(*elem));
-	memset(elem, 0, sizeof(*elem));
+	elem = OALLOCZ(&status->cnts, opt_entry_t);
 
 	/* clear new counter */
 	opt_clear_entry(elem);
@@ -367,7 +375,8 @@ static opt_entry_t *opt_get_entry(const ir_op *op, hmap_opt_entry_t *hmap)
 /**
  * clears all counter in a block_entry_t
  */
-static void block_clear_entry(block_entry_t *elem) {
+static void block_clear_entry(block_entry_t *elem)
+{
 	int i;
 
 	for (i = 0; i < _bcnt_last; ++i)
@@ -391,8 +400,7 @@ static block_entry_t *block_get_entry(struct obstack *obst, long block_nr, hmap_
 	if (elem)
 		return elem;
 
-	elem = obstack_alloc(obst, sizeof(*elem));
-	memset(elem, 0, sizeof(*elem));
+	elem = OALLOCZ(obst, block_entry_t);
 
 	/* clear new counter */
 	block_clear_entry(elem);
@@ -438,8 +446,7 @@ static be_block_entry_t *be_block_get_entry(struct obstack *obst, long block_nr,
 	if (elem)
 		return elem;
 
-	elem = obstack_alloc(obst, sizeof(*elem));
-	memset(elem, 0, sizeof(*elem));
+	elem = OALLOCZ(obst, be_block_entry_t);
 
 	/* clear new counter */
 	be_block_clear_entry(elem);
@@ -452,7 +459,8 @@ static be_block_entry_t *be_block_get_entry(struct obstack *obst, long block_nr,
 /**
  * clears all sets in perm_class_entry_t
  */
-static void perm_class_clear_entry(perm_class_entry_t *elem) {
+static void perm_class_clear_entry(perm_class_entry_t *elem)
+{
 	if (elem->perm_stat)
 		del_pset(elem->perm_stat);
 
@@ -477,8 +485,7 @@ static perm_class_entry_t *perm_class_get_entry(struct obstack *obst, const char
 	if (elem)
 		return elem;
 
-	elem = obstack_alloc(obst, sizeof(*elem));
-	memset(elem, 0, sizeof(*elem));
+	elem = OALLOCZ(obst, perm_class_entry_t);
 
 	/* clear new counter */
 	perm_class_clear_entry(elem);
@@ -491,7 +498,8 @@ static perm_class_entry_t *perm_class_get_entry(struct obstack *obst, const char
 /**
  * clears all sets in perm_stat_entry_t
  */
-static void perm_stat_clear_entry(perm_stat_entry_t *elem) {
+static void perm_stat_clear_entry(perm_stat_entry_t *elem)
+{
 	if (elem->chains)
 		stat_delete_distrib_tbl(elem->chains);
 
@@ -519,8 +527,7 @@ static perm_stat_entry_t *perm_stat_get_entry(struct obstack *obst, ir_node *per
 	if (elem)
 		return elem;
 
-	elem = obstack_alloc(obst, sizeof(*elem));
-	memset(elem, 0, sizeof(*elem));
+	elem = OALLOCZ(obst, perm_stat_entry_t);
 
 	/* clear new counter */
 	perm_stat_clear_entry(elem);
@@ -533,7 +540,8 @@ static perm_stat_entry_t *perm_stat_get_entry(struct obstack *obst, ir_node *per
 /**
  * Clear optimizations counter,
  */
-static void clear_optimization_counter(void)  {
+static void clear_optimization_counter(void)
+{
 	int i;
 	for (i = 0; i < FS_OPT_MAX; ++i)
 		cnt_clr(&status->num_opts[i]);
@@ -597,10 +605,10 @@ static ir_op *stat_get_irn_op(ir_node *node)
 		}  /* if */
 		break;
 	case iro_Sel:
-		if (get_irn_op(get_Sel_ptr(node)) == op_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 (get_irn_op(get_Sel_ptr(get_Sel_ptr(node))) == op_Sel) {
+			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 */
@@ -722,7 +730,7 @@ static void update_extbb_info(ir_node *node, graph_entry_t *graph)
 	cnt_inc(&eb_entry->cnt[bcnt_nodes]);
 
 	/* don't count keep-alive edges */
-	if (get_irn_op(node) == op_End)
+	if (is_End(node))
 		return;
 
 	arity = get_irn_arity(node);
@@ -746,7 +754,8 @@ static void update_extbb_info(ir_node *node, graph_entry_t *graph)
  * 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) {
+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);
 
@@ -804,7 +813,7 @@ static void stat_update_call(ir_node *call, graph_entry_t *graph)
 	/* found a call, this function is not a leaf */
 	graph->is_leaf = 0;
 
-	if (get_irn_op(ptr) == op_SymConst) {
+	if (is_SymConst(ptr)) {
 		if (get_SymConst_kind(ptr) == symconst_addr_ent) {
 			/* ok, we seems to know the entity */
 			ent = get_SymConst_entity(ptr);
@@ -872,7 +881,7 @@ static void stat_update_call_2(ir_node *call, graph_entry_t *graph)
 	if (is_Bad(block))
 		return;
 
-	if (get_irn_op(ptr) == op_SymConst) {
+	if (is_SymConst(ptr)) {
 		if (get_SymConst_kind(ptr) == symconst_addr_ent) {
 			/* ok, we seems to know the entity */
 			ent = get_SymConst_entity(ptr);
@@ -899,7 +908,8 @@ static void stat_update_call_2(ir_node *call, graph_entry_t *graph)
  *
  * @return the base address.
  */
-static ir_node *find_base_adr(ir_node *sel) {
+static ir_node *find_base_adr(ir_node *sel)
+{
 	ir_node *ptr = get_Sel_ptr(sel);
 
 	while (is_Sel(ptr)) {
@@ -912,7 +922,8 @@ static ir_node *find_base_adr(ir_node *sel) {
 /**
  * Update info on Load/Store address statistics.
  */
-static void stat_update_address(ir_node *node, graph_entry_t *graph) {
+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;
@@ -970,7 +981,7 @@ static void update_node_stat(ir_node *node, void *env)
 	node_entry_t *entry;
 
 	ir_op *op = stat_get_irn_op(node);
-	int arity = get_irn_arity(node);
+	int i, arity = get_irn_arity(node);
 
 	entry = opcode_get_entry(op, graph->opcode_hash);
 
@@ -1001,6 +1012,16 @@ static void update_node_stat(ir_node *node, void *env)
 		/* 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 */
@@ -1023,7 +1044,8 @@ static void update_node_stat(ir_node *node, void *env)
 /**
  * Walker for reachable nodes count for graphs on the wait_q.
  */
-static void update_node_stat_2(ir_node *node, void *env) {
+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 */
@@ -1034,7 +1056,8 @@ static void update_node_stat_2(ir_node *node, void *env) {
 /**
  * Get the current address mark.
  */
-static unsigned get_adr_mark(graph_entry_t *graph, ir_node *node) {
+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));
 
 	return value ? value->mark : 0;
@@ -1043,7 +1066,8 @@ static unsigned get_adr_mark(graph_entry_t *graph, ir_node *node) {
 /**
  * Set the current address mark.
  */
-static void set_adr_mark(graph_entry_t *graph, ir_node *node, unsigned val) {
+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));
 
 	value->mark = val;
@@ -1081,7 +1105,8 @@ static int stat_adr_mark_hook(FILE *F, ir_node *node, ir_node *local)
 /**
  * Return the "operational" mode of a Firm node.
  */
-static ir_mode *get_irn_op_mode(ir_node *node) {
+static ir_mode *get_irn_op_mode(ir_node *node)
+{
 	switch (get_irn_opcode(node)) {
 	case iro_Load:
 		return get_Load_mode(node);
@@ -1107,7 +1132,8 @@ static ir_mode *get_irn_op_mode(ir_node *node) {
  * 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) {
+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;
@@ -1152,7 +1178,8 @@ static void mark_address_calc(ir_node *node, void *env) {
  * 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) {
+static void count_adr_ops(ir_node *node, void *env)
+{
 	graph_entry_t *graph = env;
 	unsigned mark        = get_adr_mark(graph, node);
 
@@ -1186,6 +1213,7 @@ static void update_graph_stat(graph_entry_t *global, graph_entry_t *graph)
 	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);
@@ -1298,16 +1326,15 @@ static void update_graph_stat_2(graph_entry_t *global, graph_entry_t *graph)
 /**
  * Register a dumper.
  */
-static void stat_register_dumper(const dumper_t *dumper) {
-	dumper_t *p = xmalloc(sizeof(*p));
+static void stat_register_dumper(const dumper_t *dumper)
+{
+	dumper_t *p = XMALLOC(dumper_t);
 
-	if (p) {
-		memcpy(p, dumper, sizeof(*p));
+	memcpy(p, dumper, sizeof(*p));
 
-		p->next        = status->dumper;
-		p->status      = status;
-		status->dumper = p;
-	}
+	p->next        = status->dumper;
+	p->status      = status;
+	status->dumper = p;
 
 	/* FIXME: memory leak */
 }  /* stat_register_dumper */
@@ -1315,7 +1342,8 @@ static void stat_register_dumper(const dumper_t *dumper) {
 /**
  * Dumps the statistics of an IR graph.
  */
-static void stat_dump_graph(graph_entry_t *entry) {
+static void stat_dump_graph(graph_entry_t *entry)
+{
 	dumper_t *dumper;
 
 	for (dumper = status->dumper; dumper; dumper = dumper->next) {
@@ -1327,7 +1355,8 @@ static void stat_dump_graph(graph_entry_t *entry) {
 /**
  * Calls all registered dumper functions.
  */
-static void stat_dump_registered(graph_entry_t *entry) {
+static void stat_dump_registered(graph_entry_t *entry)
+{
 	dumper_t *dumper;
 
 	for (dumper = status->dumper; dumper; dumper = dumper->next) {
@@ -1343,7 +1372,8 @@ static void stat_dump_registered(graph_entry_t *entry) {
 /**
  * Dumps a constant table.
  */
-static void stat_dump_consts(const constant_info_t *tbl) {
+static void stat_dump_consts(const constant_info_t *tbl)
+{
 	dumper_t *dumper;
 
 	for (dumper = status->dumper; dumper; dumper = dumper->next) {
@@ -1355,7 +1385,8 @@ static void stat_dump_consts(const constant_info_t *tbl) {
 /**
  * Dumps the parameter distribution
  */
-static void stat_dump_param_tbl(const distrib_tbl_t *tbl, graph_entry_t *global) {
+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) {
@@ -1367,7 +1398,8 @@ static void stat_dump_param_tbl(const distrib_tbl_t *tbl, graph_entry_t *global)
 /**
  * Dumps the optimization counter
  */
-static void stat_dump_opt_cnt(const counter_t *tbl, unsigned len) {
+static void stat_dump_opt_cnt(const counter_t *tbl, unsigned len)
+{
 	dumper_t *dumper;
 
 	for (dumper = status->dumper; dumper; dumper = dumper->next) {
@@ -1379,7 +1411,8 @@ static void stat_dump_opt_cnt(const counter_t *tbl, unsigned len) {
 /**
  * Initialize the dumper.
  */
-static void stat_dump_init(const char *name) {
+static void stat_dump_init(const char *name)
+{
 	dumper_t *dumper;
 
 	for (dumper = status->dumper; dumper; dumper = dumper->next) {
@@ -1391,7 +1424,8 @@ static void stat_dump_init(const char *name) {
 /**
  * Finish the dumper.
  */
-static void stat_dump_finish(void) {
+static void stat_dump_finish(void)
+{
 	dumper_t *dumper;
 
 	for (dumper = status->dumper; dumper; dumper = dumper->next) {
@@ -1403,7 +1437,8 @@ static void stat_dump_finish(void) {
 /**
  * Register an additional function for all dumper.
  */
-void stat_register_dumper_func(dump_graph_FUNC func) {
+void stat_register_dumper_func(dump_graph_FUNC func)
+{
 	dumper_t *dumper;
 
 	for (dumper = status->dumper; dumper; dumper = dumper->next) {
@@ -1418,7 +1453,8 @@ void stat_register_dumper_func(dump_graph_FUNC func) {
 /*
  * Helper: get an ir_op from an opcode.
  */
-ir_op *stat_get_op_from_opcode(ir_opcode code) {
+ir_op *stat_get_op_from_opcode(ir_opcode code)
+{
 	return opcode_find_entry(code, status->ir_op_hash);
 }  /* stat_get_op_from_opcode */
 
@@ -1428,7 +1464,8 @@ ir_op *stat_get_op_from_opcode(ir_opcode code) {
  * @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) {
+static void stat_new_ir_op(void *ctx, ir_op *op)
+{
 	(void) ctx;
 	if (! status->stat_options)
 		return;
@@ -1451,7 +1488,8 @@ static void stat_new_ir_op(void *ctx, ir_op *op) {
  * @param ctx  the hook context
  * @param op   the IR opcode that is freed
  */
-static void stat_free_ir_op(void *ctx, ir_op *op) {
+static void stat_free_ir_op(void *ctx, ir_op *op)
+{
 	(void) ctx;
 	(void) op;
 	if (! status->stat_options)
@@ -1470,7 +1508,8 @@ static void stat_free_ir_op(void *ctx, ir_op *op) {
  * @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) {
+static void stat_new_node(void *ctx, ir_graph *irg, ir_node *node)
+{
 	(void) ctx;
 	(void) irg;
 	if (! status->stat_options)
@@ -1505,7 +1544,8 @@ static void stat_new_node(void *ctx, ir_graph *irg, ir_node *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) {
+static void stat_turn_into_id(void *ctx, ir_node *node)
+{
 	(void) ctx;
 	if (! status->stat_options)
 		return;
@@ -1529,6 +1569,37 @@ static void stat_turn_into_id(void *ctx, ir_node *node) {
 	STAT_LEAVE;
 }  /* stat_turn_into_id */
 
+/**
+ * Hook: A node is normalized
+ *
+ * @param ctx   the hook context
+ * @param node  the IR node that was normalized
+ */
+static void stat_normalize(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->normalized);
+
+		/* increase local value */
+		graph = graph_get_entry(current_ir_graph, status->irg_hash);
+		entry = opcode_get_entry(op, graph->opcode_hash);
+		cnt_inc(&entry->normalized);
+	}
+	STAT_LEAVE;
+}  /* stat_normalize */
+
 /**
  * Hook: A new graph was created
  *
@@ -1536,7 +1607,8 @@ static void stat_turn_into_id(void *ctx, ir_node *node) {
  * @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) {
+static void stat_new_graph(void *ctx, ir_graph *irg, ir_entity *ent)
+{
 	(void) ctx;
 	if (! status->stat_options)
 		return;
@@ -1552,6 +1624,7 @@ static void stat_new_graph(void *ctx, ir_graph *irg, ir_entity *ent) {
 		graph->is_leaf_call  = 0;
 		graph->is_recursive  = 0;
 		graph->is_chain_call = 0;
+		graph->is_strict     = 1;
 		graph->is_analyzed   = 0;
 	}
 	STAT_LEAVE;
@@ -1567,7 +1640,8 @@ static void stat_new_graph(void *ctx, ir_graph *irg, ir_entity *ent) {
  * 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) {
+static void stat_free_graph(void *ctx, ir_graph *irg)
+{
 	(void) ctx;
 	if (! status->stat_options)
 		return;
@@ -1660,7 +1734,8 @@ static void stat_irg_block_walk(void *ctx, ir_graph *irg, ir_node *node, generic
  * @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) {
+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);
 
@@ -1728,7 +1803,8 @@ static void stat_merge_nodes(
  * @param ctx   the hook context
  * @param flag  if non-zero, reassociation is started else stopped
  */
-static void stat_reassociate(void *ctx, int flag) {
+static void stat_reassociate(void *ctx, int flag)
+{
 	(void) ctx;
 	if (! status->stat_options)
 		return;
@@ -1746,7 +1822,8 @@ static void stat_reassociate(void *ctx, int flag) {
  * @param ctx  the hook context
  * @param node the IR node that will be lowered
  */
-static void stat_lower(void *ctx, ir_node *node) {
+static void stat_lower(void *ctx, ir_node *node)
+{
 	(void) ctx;
 	if (! status->stat_options)
 		return;
@@ -1791,7 +1868,8 @@ static void stat_inline(void *ctx, ir_node *call, ir_graph *called_irg)
  *
  * @param ctx  the hook context
  */
-static void stat_tail_rec(void *ctx, ir_graph *irg, int n_calls) {
+static void stat_tail_rec(void *ctx, ir_graph *irg, int n_calls)
+{
 	(void) ctx;
 	if (! status->stat_options)
 		return;
@@ -1810,7 +1888,8 @@ static void stat_tail_rec(void *ctx, ir_graph *irg, int n_calls) {
  *
  * @param ctx  the hook context
  */
-static void stat_strength_red(void *ctx, ir_graph *irg, ir_node *strong) {
+static void stat_strength_red(void *ctx, ir_graph *irg, ir_node *strong)
+{
 	(void) ctx;
 	if (! status->stat_options)
 		return;
@@ -1830,7 +1909,8 @@ static void stat_strength_red(void *ctx, ir_graph *irg, ir_node *strong) {
  *
  * @param ctx  the hook context
  */
-static void stat_dead_node_elim(void *ctx, ir_graph *irg, int start) {
+static void stat_dead_node_elim(void *ctx, ir_graph *irg, int start)
+{
 	(void) ctx;
 	(void) irg;
 	if (! status->stat_options)
@@ -1885,7 +1965,8 @@ static void stat_func_call(void *context, ir_graph *irg, ir_node *call)
  *
  * @param ctx  the hook context
  */
-static void stat_arch_dep_replace_mul_with_shifts(void *ctx, ir_node *mul) {
+static void stat_arch_dep_replace_mul_with_shifts(void *ctx, ir_node *mul)
+{
 	(void) ctx;
 	if (! status->stat_options)
 		return;
@@ -1904,7 +1985,8 @@ static void stat_arch_dep_replace_mul_with_shifts(void *ctx, ir_node *mul) {
  * @param ctx   the hook context
  * @param node  the division node that will be optimized
  */
-static void stat_arch_dep_replace_division_by_const(void *ctx, ir_node *node) {
+static void stat_arch_dep_replace_division_by_const(void *ctx, ir_node *node)
+{
 	(void) ctx;
 	if (! status->stat_options)
 		return;
@@ -1937,8 +2019,7 @@ void stat_be_block_regpressure(ir_graph *irg, ir_node *block, int pressure, cons
 		reg_pressure_entry_t *rp_ent;
 
 		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));
+		rp_ent    = OALLOCZ(&status->be_data, reg_pressure_entry_t);
 
 		rp_ent->class_name = class_name;
 		rp_ent->pressure   = pressure;
@@ -2096,10 +2177,10 @@ void stat_dump_snapshot(const char *name, const char *phase)
 			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));
+		strncat(fname, "firmstat-", sizeof(fname)-1);
+		strncat(fname, phase, sizeof(fname)-1);
+		strncat(fname, "-", sizeof(fname)-1);
+		strncat(fname, p, sizeof(fname)-1);
 
 		stat_dump_init(fname);
 
@@ -2158,7 +2239,7 @@ void stat_dump_snapshot(const char *name, const char *phase)
 
 		stat_finish_pattern_history(fname);
 
-		/* clear the global counter here */
+		/* clear the global counters here */
 		{
 			node_entry_t *entry;
 
@@ -2166,12 +2247,68 @@ void stat_dump_snapshot(const char *name, const char *phase)
 				opcode_clear_entry(entry);
 			}  /* for */
 			/* clear all global counter */
-			graph_clear_entry(global, 1);
+			graph_clear_entry(global, /*all=*/1);
 		}
 	}
 	STAT_LEAVE;
 }  /* stat_dump_snapshot */
 
+struct pass_t {
+	ir_prog_pass_t pass;
+	const char     *fname;
+	const char     *phase;
+};
+
+/**
+ * Wrapper to run stat_dump_snapshot() as a ir_prog wrapper.
+ */
+static int stat_dump_snapshot_wrapper(ir_prog *irp, void *context)
+{
+	struct pass_t *pass = context;
+
+	(void)irp;
+	stat_dump_snapshot(pass->fname, pass->phase);
+	return 0;
+}  /* stat_dump_snapshot_wrapper */
+
+/**
+ * Ensure that no verifier is run from the wrapper.
+ */
+static int no_verify(ir_prog *prog, void *ctx)
+{
+	(void)prog;
+	(void)ctx;
+	return 0;
+}
+
+/**
+ * Ensure that no dumper is run from the wrapper.
+ */
+static void no_dump(ir_prog *prog, void *ctx, unsigned idx)
+{
+	(void)prog;
+	(void)ctx;
+	(void)idx;
+}
+
+/* create an ir_pog pass */
+ir_prog_pass_t *stat_dump_snapshot_pass(
+	const char *name, const char *fname, const char *phase)
+{
+	struct pass_t *pass = XMALLOCZ(struct pass_t);
+
+	def_prog_pass_constructor(
+		&pass->pass, name ? name : "stat_snapshot", stat_dump_snapshot_wrapper);
+	pass->fname = fname;
+	pass->phase = phase;
+
+	/* no dump/verify */
+	pass->pass.dump_irprog   = no_dump;
+	pass->pass.verify_irprog = no_verify;
+
+	return &pass->pass;
+}  /* stat_dump_snapshot_pass */
+
 /** the hook entries for the Firm statistics module */
 static hook_entry_t stat_hooks[hook_last];
 
@@ -2186,8 +2323,7 @@ void firm_init_stat(unsigned enable_options)
 	if (! (enable_options & FIRMSTAT_ENABLED))
 		return;
 
-	status = xmalloc(sizeof(*status));
-	memset(status, 0, sizeof(*status));
+	status = XMALLOCZ(stat_info_t);
 
 	/* enable statistics */
 	status->stat_options = enable_options & FIRMSTAT_ENABLED ? enable_options : 0;
@@ -2197,6 +2333,7 @@ void firm_init_stat(unsigned enable_options)
 	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_normalize,                          stat_normalize);
 	HOOK(hook_new_graph,                          stat_new_graph);
 	HOOK(hook_free_graph,                         stat_free_graph);
 	HOOK(hook_irg_walk,                           stat_irg_walk);
@@ -2310,7 +2447,8 @@ void firm_init_stat(unsigned enable_options)
 /**
  * Frees all dumper structures.
  */
-static void stat_term_dumper(void) {
+static void stat_term_dumper(void)
+{
 	dumper_t *dumper, *next_dumper;
 
 	for (dumper = status->dumper; dumper; /* iteration done in loop body */ ) {
@@ -2325,7 +2463,8 @@ static void stat_term_dumper(void) {
 
 
 /* Terminates the statistics module, frees all memory. */
-void stat_term(void) {
+void stat_term(void)
+{
 	if (status != (stat_info_t *)&status_disable) {
 		obstack_free(&status->be_data, NULL);
 		obstack_free(&status->cnts, NULL);
@@ -2338,7 +2477,8 @@ void stat_term(void) {
 }  /* stat_term */
 
 /* returns 1 if statistics were initialized, 0 otherwise */
-int stat_is_active(void) {
+int stat_is_active(void)
+{
 	return status != (stat_info_t *)&status_disable;
 }  /* stat_is_active */