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 #include "irdump.h"
  18
  19 #include "be_t.h"
  20 #include "bera_t.h"
  21 #include "benumb_t.h"
  22 #include "besched_t.h"
  23 #include "belistsched.h"
  24 #include "belive_t.h"
  25 #include "beutil.h"
  26 #include "phiclass_t.h"
  27 #include "bechordal.h"
  28 #include "bechordal.h"
  29 #include "bephiopt.h"
  30 #include "phistat.h"
  31
  32 #define DUMP_LOCAL 1
  33
  34 #define N_PHASES 256
  35
  36 typedef struct _be_graph_info_t {
  37         bitset_t *applied_phases;
  38 } be_graph_info_t;
  39
  40 static size_t be_info_offset = 0;
  41
  42 #define get_irg_be_info(irg) get_irg_data(irg, be_graph_info_t, be_info_offset)
  43
  44 static int phase_ids = 1;
  45 static struct obstack obst;
  46
  47 int phase_register(phase_t *phase)
  48 {
  49         phase->id = phase_ids;
  50         return phase_ids++;
  51 }
  52
  53 void phase_applied(const ir_graph *irg, const phase_t *phase)
  54 {
  55         be_graph_info_t *info = get_irg_be_info(irg);
  56
  57         if(!info->applied_phases)
  58                 info->applied_phases = bitset_obstack_alloc(&obst, N_PHASES);
  59
  60         bitset_set(info->applied_phases, phase->id);
  61 }
  62
  63 int phase_depends_on(const ir_graph *irg, const phase_t *phase, int n, ...)
  64 {
  65         int errors = 0;
  66         int i;
  67         va_list args;
  68
  69         if(n > 0) {
  70                 const be_graph_info_t *info = get_irg_be_info(irg);
  71                 const bitset_t *applied_phases = info->applied_phases;
  72
  73                 va_start(args, n);
  74
  75                 for(i = 0; i < n; ++i) {
  76                         const phase_t *dep_phase = va_arg(args, const phase_t *);
  77
  78                         if(!applied_phases || !bitset_is_set(applied_phases, dep_phase->id)) {
  79                                 errors++;
  80                                 fprintf(stderr, "phase dependency unfulfilled: \"%s\" depends on \"%s\"\n",
  81                                                 phase->name, dep_phase->name);
  82                         }
  83                 }
  84
  85                 va_end(args);
  86
  87                 assert(errors > 0 && "There were phase dependency errors");
  88         }
  89
  90         return errors;
  91 }
  92
  93 void be_init(void)
  94 {
  95         obstack_init(&obst);
  96         be_info_offset = register_additional_graph_data(sizeof(be_graph_info_t));
  97
  98         be_sched_init();
  99         be_liveness_init();
 100         be_numbering_init();
 101         be_ra_init();
 102         be_ra_chordal_init();
 103         be_phi_opt_init();
 104 }
 105
 106 extern void be_ra_chordal(ir_graph *irg);
 107
 108 static void be_main_loop(void)
 109 {
 110         int i, n;
 111
 112         for(i = 0, n = get_irp_n_irgs(); i < n; ++i) {
 113                 ir_graph *irg = get_irp_irg(i);
 114
 115                 localize_consts(irg);
 116                 if (DUMP_LOCAL) {
 117                         dump_consts_local(0);
 118                         dump_ir_block_graph(irg, "-local");
 119                 }
 120
 121                 be_numbering(irg);
 122                 list_sched(irg, trivial_selector, NULL);
 123                 be_liveness(irg);
 124                 be_ra_chordal(irg);
 125                 //be_phi_opt(irg);
 126                 //be_phi_destruction(irg);
 127
 128                 be_ra_chordal_done(irg);
 129                 be_numbering_done(irg);
 130         }
 131 }
 132
 133 void be_main(int argc, const char *argv[])
 134 {
 135         be_main_loop();
 136 }