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 "bearch.h"
  17
  18 struct dump_env {
  19   FILE *f;
  20   arch_env_t *env;
  21 };
  22
  23 static void dump_allocated_block(ir_node *block, void *data)
  24 {
  25         int i, n;
  26         const ir_node *irn;
  27   struct dump_env *dump_env = data;
  28         FILE *f = dump_env->f;
  29   arch_env_t *env = dump_env->env;
  30
  31         ir_fprintf(f, "node:{title:\"b%N\"\nlabel:\"%n\n", block, block);
  32         sched_foreach(block, irn) {
  33                 const char *prefix = "";
  34     const arch_register_t *reg = arch_get_irn_register(env, irn, 0);
  35
  36                 ir_fprintf(f, "\n");
  37     if(reg)
  38       ir_fprintf(f, "%s = ", arch_register_get_name(reg));
  39                 ir_fprintf(f, "%n(", irn);
  40
  41                 if(block != get_irg_start_block(get_irn_irg(block))) {
  42                         for(i = 0, n = get_irn_arity(irn); i < n; ++i) {
  43                                 ir_node *op = get_irn_n(irn, i);
  44         if(arch_is_register_operand(dump_env->env, op, arch_pos_make_out(0))) {
  45                                         ir_fprintf(f, "%s%s", prefix,
  46               arch_register_get_name(arch_get_irn_register(env, op, 0)));
  47                                         prefix = ", ";
  48                                 }
  49                         }
  50                 }
  51
  52                 ir_fprintf(f, ")");
  53         }
  54         ir_fprintf(f, "\"}\n");
  55
  56         if(get_irg_start_block(get_irn_irg(block)) != block) {
  57                 for(i = 0, n = get_irn_arity(block); i < n; ++i) {
  58                         ir_node *pred_bl = get_nodes_block(get_irn_n(block, i));
  59                         ir_fprintf(f, "edge:{sourcename:\"b%N\" targetname:\"b%N\"}\n", pred_bl, block);
  60                 }
  61         }
  62 }
  63
  64 void dump_allocated_irg(arch_env_t *arch_env, ir_graph *irg, char *suffix)
  65 {
  66         char buf[1024];
  67   struct dump_env env;
  68
  69   env.env = arch_env;
  70
  71         ir_snprintf(buf, sizeof(buf), "%F-alloc%s.vcg", irg, suffix);
  72
  73         if((env.f = fopen(buf, "wt")) != NULL) {
  74                 fprintf(env.f, "graph:{title:\"prg\"\n");
  75                 irg_block_walk_graph(irg, dump_allocated_block, NULL, &env);
  76                 fprintf(env.f, "}\n");
  77                 fclose(env.f);
  78         }
  79 }
  80
  81 static void localize_const_walker(ir_node *irn, void *data)
  82 {
  83         if(!is_Block(irn)) {
  84                 int i, n;
  85
  86                 for(i = 0, n = get_irn_arity(irn); i < n; ++i) {
  87                         ir_node *op = get_irn_n(irn, i);
  88                         if(get_irn_opcode(op) == iro_Const) {
  89                                 ir_node *tgt_block, *cnst;
  90
  91                                 /* Special treatment for phi nodes, because phi-usage is different */
  92                                 tgt_block = get_nodes_block(irn);
  93                                 if(is_Phi(irn))
  94                                         tgt_block = get_nodes_block(get_irn_n(tgt_block, i));
  95
  96                                 /*
  97                                  * We have to create the const node by ourselves, since the
  98                                  * firmcons implementation always places it in the start block.
  99                                  */
 100                                 cnst = new_ir_node(NULL, get_irn_irg(irn),
 101                                                 tgt_block, op_Const, get_irn_mode(op), 0, NULL);
 102                                 cnst->attr.con.tv = get_Const_tarval(op);
 103                                 set_irn_n(irn, i, cnst);
 104                         }
 105                 }
 106         }
 107 }
 108
 109 void localize_consts(ir_graph *irg)
 110 {
 111         irg_walk_graph(irg, localize_const_walker, NULL, NULL);
 112         dead_node_elimination(irg);
 113 }