removed call to my funcs. had to check in but couldn't test
[libfirm] / ir / be / bephiopt.c
1 /**
2  * @author Daniel Grund
3  * @date 04.01.2005
4  */
5
6 #include <stdlib.h>
7 #include <stdio.h>
8
9 #include "pset.h"
10 #include "irgraph.h"
11 #include "irnode.h"
12 #include "irgwalk.h"
13 #include "irdom.h"
14
15 #include "bephiopt.h"
16 #include "bephicongr_t.h"
17 #include "bephicoal_t.h"
18 #include "phistat.h"
19
20 #define DO_PHI_STATISTICS
21 #undef DUMP_IRG_PHI_STAT
22 #define DUMP_ALL_PHI_STAT
23
24 #define DEBUG_LVL 1
25
26 #define CUMULATIVE_FILE "all.phistat"
27 #define ENV_PHI_STAT "PHI_STAT"
28
29 static firm_dbg_module_t *dbgphi = NULL;
30
31 static void phi_node_walker(ir_node *node, void *env) {
32         if (is_Phi(node) && mode_is_datab(get_irn_mode(node)))
33                 pset_insert_ptr((pset *)env, node);
34 }
35
36
37 void be_phi_opt(ir_graph* irg) {
38         pset *all_phi_nodes, *all_phi_classes;
39
40         DBG((dbgphi, 1, "\n\n=======================> IRG: %s\n\n", get_entity_name(get_irg_entity(irg))));
41
42
43         /* get all phi nodes */
44         DBG((dbgphi, 1, "-----------------------> Collecting phi nodes <-----------------------\n\n"));
45         all_phi_nodes = pset_new_ptr(64);
46         irg_walk_graph(irg, phi_node_walker, NULL, all_phi_nodes);
47
48
49         /* get all phi congruence classes */
50         DBG((dbgphi, 1, "-----------------------> Collecting phi classes <---------------------\n\n"));
51         all_phi_classes = be_phi_congr_classes(all_phi_nodes);
52
53
54         /* do some statistics */
55 #ifdef DO_PHI_STATISTICS
56         DBG((dbgphi, 1, "-----------------------> Collecting phi stats <-----------------------\n\n"));
57         phi_stat_reset();
58         phi_stat_collect(irg, all_phi_nodes, all_phi_classes);
59 #ifdef DUMP_IRG_PHI_STAT
60         {
61                 char buf[1024];
62                 snprintf(buf, sizeof(buf), "%s.phistat", get_entity_name(get_irg_entity(irg)));
63                 //phi_stat_dump(buf);
64                 phi_stat_dump_pretty(buf);
65         }
66 #endif
67 #ifdef DUMP_ALL_PHI_STAT
68         phi_stat_update(CUMULATIVE_FILE);
69 #endif
70         phi_stat_update(getenv(ENV_PHI_STAT));
71 #endif
72
73
74         /* try to coalesce the colors of each phi class */
75         DBG((dbgphi, 1, "-----------------------> Coalescing <---------------------------------\n\n"));
76         compute_doms(irg);
77         be_phi_coalesce(all_phi_classes);
78         free_dom_and_peace(irg);
79 }
80
81
82 void be_phi_opt_init(void) {
83         dbgphi = firm_dbg_register("Phi optimizer");
84         firm_dbg_set_mask(dbgphi, DEBUG_LVL);
85
86         be_phi_congr_class_init();
87         be_phi_coal_init();
88 }