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

   1 #ifdef HAVE_CONFIG_H
   2 #include "config.h"
   3 #endif
   4
   5 #include <stdio.h>
   6
   7 #include "irgraph.h"
   8 #include "irgwalk.h"
   9 #include "ircons.h"
  10 #include "iropt.h"
  11 #include "irgopt.h"
  12 #include "irprintf.h"
  13
  14 #include "beutil.h"
  15 #include "besched_t.h"
  16 #include "bera_t.h"
  17
  18 static void dump_allocated_block(ir_node *block, void *env)
  19 {
  20         int i, n;
  21         const ir_node *irn;
  22         FILE *f = env;
  23
  24         ir_fprintf(f, "node:{title:\"b%N\"\nlabel:\"%n\n", block, block);
  25         sched_foreach(block, irn) {
  26                 const char *prefix = "";
  27
  28                 ir_fprintf(f, "\n");
  29                 if(is_color(get_irn_color(irn)))
  30                         ir_fprintf(f, "r%d = ", get_irn_color(irn));
  31                 ir_fprintf(f, "%n(", irn);
  32
  33                 if(block != get_irg_start_block(get_irn_irg(block))) {
  34                         for(i = 0, n = get_irn_arity(irn); i < n; ++i) {
  35                                 ir_node *op = get_irn_n(irn, i);
  36                                 if(is_allocatable_irn(op)) {
  37                                         ir_fprintf(f, "%sr%d", prefix, get_irn_color(op));
  38                                         prefix = ", ";
  39                                 }
  40                         }
  41                 }
  42
  43                 ir_fprintf(f, ")");
  44         }
  45         ir_fprintf(f, "\"}\n");
  46
  47         if(get_irg_start_block(get_irn_irg(block)) != block) {
  48                 for(i = 0, n = get_irn_arity(block); i < n; ++i) {
  49                         ir_node *pred_bl = get_nodes_block(get_irn_n(block, i));
  50                         ir_fprintf(f, "edge:{sourcename:\"b%N\" targetname:\"b%N\"}\n", pred_bl, block);
  51                 }
  52         }
  53 }
  54
  55 void dump_allocated_irg(ir_graph *irg, char *suffix)
  56 {
  57         char buf[1024];
  58         FILE *f;
  59
  60         snprintf(buf, sizeof(buf), "%s-alloc%s.vcg", get_entity_name(get_irg_entity(irg)), suffix);
  61
  62         if((f = fopen(buf, "wt")) != NULL) {
  63                 fprintf(f, "graph:{title:\"prg\"\n");
  64                 irg_block_walk_graph(irg, dump_allocated_block, NULL, f);
  65                 fprintf(f, "}\n");
  66                 fclose(f);
  67         }
  68 }
  69
  70 static void localize_const_walker(ir_node *irn, void *data)
  71 {
  72         if(!is_Block(irn)) {
  73                 int i, n;
  74
  75                 for(i = 0, n = get_irn_arity(irn); i < n; ++i) {
  76                         ir_node *op = get_irn_n(irn, i);
  77                         if(get_irn_opcode(op) == iro_Const) {
  78                                 ir_node *tgt_block, *cnst;
  79
  80                                 /* Special treatment for phi nodes, because phi-usage is different */
  81                                 tgt_block = get_nodes_block(irn);
  82                                 if(is_Phi(irn))
  83                                         tgt_block = get_nodes_block(get_irn_n(tgt_block, i));
  84
  85                                 /*
  86                                  * We have to create the const node by ourselves, since the
  87                                  * firmcons implementation always places it in the start block.
  88                                  */
  89                                 cnst = new_ir_node(NULL, get_irn_irg(irn),
  90                                                 tgt_block, op_Const, get_irn_mode(op), 0, NULL);
  91                                 cnst->attr.con.tv = get_Const_tarval(op);
  92                                 set_irn_n(irn, i, cnst);
  93                         }
  94                 }
  95         }
  96 }
  97
  98 void localize_consts(ir_graph *irg)
  99 {
 100         irg_walk_graph(irg, localize_const_walker, NULL, NULL);
 101         dead_node_elimination(irg);
 102 }