nsz Git - libfirm/blob - ir/be/bemain.c

   1 /**
   2  * Backend driver.
   3  * @author Sebastian Hack
   4  * @date 25.11.2004
   5  */
   6 #ifdef HAVE_CONFIG_H
   7 #include "config.h"
   8 #endif
   9
  10 #include <stdarg.h>
  11
  12 #include "obst.h"
  13 #include "bitset.h"
  14
  15 #include "irprog.h"
  16 #include "irgraph.h"
  17
  18 #include "be_t.h"
  19 #include "bera_t.h"
  20 #include "benumb_t.h"
  21 #include "besched_t.h"
  22 #include "belistsched.h"
  23 #include "belive_t.h"
  24 #include "beutil.h"
  25 #include "bephicongr_t.h"
  26 #include "bechordal.h"
  27 #include "bechordal.h"
  28 #include "bephiopt.h"
  29 #include "phistat.h"
  30
  31 #define N_PHASES 256
  32
  33 typedef struct _be_graph_info_t {
  34         bitset_t *applied_phases;
  35 } be_graph_info_t;
  36
  37 static size_t be_info_offset = 0;
  38
  39 #define get_irg_be_info(irg) get_irg_data(irg, be_graph_info_t, be_info_offset)
  40
  41 static int phase_ids = 1;
  42 static struct obstack obst;
  43
  44 int phase_register(phase_t *phase)
  45 {
  46         phase->id = phase_ids;
  47         return phase_ids++;
  48 }
  49
  50 void phase_applied(const ir_graph *irg, const phase_t *phase)
  51 {
  52         be_graph_info_t *info = get_irg_be_info(irg);
  53
  54         if(!info->applied_phases)
  55                 info->applied_phases = bitset_obstack_alloc(&obst, N_PHASES);
  56
  57         bitset_set(info->applied_phases, phase->id);
  58 }
  59
  60 int phase_depends_on(const ir_graph *irg, const phase_t *phase, int n, ...)
  61 {
  62         int errors = 0;
  63         int i;
  64         va_list args;
  65
  66         if(n > 0) {
  67                 const be_graph_info_t *info = get_irg_be_info(irg);
  68                 const bitset_t *applied_phases = info->applied_phases;
  69
  70                 va_start(args, n);
  71
  72                 for(i = 0; i < n; ++i) {
  73                         const phase_t *dep_phase = va_arg(args, const phase_t *);
  74
  75                         if(!applied_phases || !bitset_is_set(applied_phases, dep_phase->id)) {
  76                                 errors++;
  77                                 fprintf(stderr, "phase dependency unfulfilled: \"%s\" depends on \"%s\"\n",
  78                                                 phase->name, dep_phase->name);
  79                         }
  80                 }
  81
  82                 va_end(args);
  83
  84                 assert(errors > 0 && "There were phase dependency errors");
  85         }
  86
  87         return errors;
  88 }
  89
  90 void be_init(void)
  91 {
  92         obstack_init(&obst);
  93         be_info_offset = register_additional_graph_data(sizeof(be_graph_info_t));
  94
  95         be_sched_init();
  96         be_liveness_init();
  97         be_numbering_init();
  98         be_ra_init();
  99         be_ra_chordal_init();
 100         be_phi_congr_class_init();
 101 }
 102
 103 extern void be_ra_chordal(ir_graph *irg);
 104
 105 static void be_main_loop(void)
 106 {
 107         int i, n;
 108
 109         for(i = 0, n = get_irp_n_irgs(); i < n; ++i) {
 110                 ir_graph *irg = get_irp_irg(i);
 111
 112                 localize_consts(irg);
 113                 be_numbering(irg);
 114                 list_sched(irg, trivial_selector, NULL);
 115                 be_liveness(irg);
 116                 be_ra_chordal(irg);
 117                 //be_phi_opt(irg);
 118
 119                 //dump_allocated_irg(irg);
 120
 121                 be_ra_chordal_done(irg);
 122                 be_numbering_done(irg);
 123         }
 124 }
 125
 126 void be_main(int argc, const char *argv[])
 127 {
 128         be_main_loop();
 129 }