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 "irdump_t.h"
  10 #include "ircons.h"
  11 #include "iropt.h"
  12 #include "irgopt.h"
  13 #include "irprintf.h"
  14
  15 #include "beutil.h"
  16 #include "besched_t.h"
  17 #include "bearch.h"
  18
  19 struct dump_env {
  20   FILE *f;
  21   arch_env_t *env;
  22 };
  23
  24 static void dump_allocated_block(ir_node *block, void *data)
  25 {
  26         int i, n;
  27         const ir_node *irn;
  28         struct dump_env *dump_env = data;
  29         FILE *f = dump_env->f;
  30         arch_env_t *env = dump_env->env;
  31
  32         ir_fprintf(f, "node:{title:\"b%N\"\nlabel:\"", block);
  33         sched_foreach(block, irn) {
  34                 const char *prefix = "";
  35
  36                 const arch_register_t *reg = arch_get_irn_register(env, irn);
  37
  38                 ir_fprintf(f, "\n");
  39                 if(reg)
  40                         ir_fprintf(f, "%s = ", arch_register_get_name(reg));
  41
  42                 ir_fprintf(f, "%n(", irn);
  43
  44                 if(block != get_irg_start_block(get_irn_irg(block))) {
  45                         for(i = 0, n = get_irn_arity(irn); i < n; ++i) {
  46                                 ir_node *op = get_irn_n(irn, i);
  47                                 if(arch_is_register_operand(dump_env->env, op, -1)) {
  48                                         ir_fprintf(f, "%s%s", prefix,
  49                                                 arch_register_get_name(arch_get_irn_register(env, op)));
  50                                         prefix = ", ";
  51                                 }
  52                         }
  53                 }
  54
  55                 ir_fprintf(f, ")");
  56         }
  57         ir_fprintf(f, "\"}\n");
  58
  59         if(get_irg_start_block(get_irn_irg(block)) != block) {
  60                 for(i = 0, n = get_irn_arity(block); i < n; ++i) {
  61                         ir_node *pred_bl = get_nodes_block(get_irn_n(block, i));
  62                         ir_fprintf(f, "edge:{sourcename:\"b%N\" targetname:\"b%N\"}\n", block, pred_bl);
  63                 }
  64         }
  65 }
  66
  67 void dump_allocated_irg(arch_env_t *arch_env, ir_graph *irg, char *suffix)
  68 {
  69         char buf[1024];
  70   struct dump_env env;
  71
  72   env.env = arch_env;
  73
  74         ir_snprintf(buf, sizeof(buf), "%F-alloc%s.vcg", irg, suffix);
  75
  76         if((env.f = fopen(buf, "wt")) != NULL) {
  77                 fprintf(env.f, "graph:{title:\"prg\"\n");
  78                 irg_block_walk_graph(irg, dump_allocated_block, NULL, &env);
  79                 fprintf(env.f, "}\n");
  80                 fclose(env.f);
  81         }
  82 }
  83
  84 static void localize_const_walker(ir_node *irn, void *data)
  85 {
  86         if(!is_Block(irn)) {
  87                 int i, n;
  88
  89                 for(i = 0, n = get_irn_arity(irn); i < n; ++i) {
  90                         ir_node *op = get_irn_n(irn, i);
  91                         if(get_irn_opcode(op) == iro_Const) {
  92                                 ir_node *tgt_block, *cnst;
  93
  94                                 /* Special treatment for phi nodes, because phi-usage is different */
  95                                 tgt_block = get_nodes_block(irn);
  96                                 if(is_Phi(irn))
  97                                         tgt_block = get_nodes_block(get_irn_n(tgt_block, i));
  98
  99                                 /*
 100                                  * We have to create the const node by ourselves, since the
 101                                  * firmcons implementation always places it in the start block.
 102                                  */
 103                                 cnst = new_ir_node(NULL, get_irn_irg(irn),
 104                                                 tgt_block, op_Const, get_irn_mode(op), 0, NULL);
 105                                 cnst->attr.con.tv = get_Const_tarval(op);
 106                                 set_irn_n(irn, i, cnst);
 107                         }
 108                 }
 109         }
 110 }
 111
 112 void localize_consts(ir_graph *irg)
 113 {
 114         irg_walk_graph(irg, localize_const_walker, NULL, NULL);
 115         dead_node_elimination(irg);
 116 }
 117
 118 static int sched_edge_hook(FILE *F, ir_node *irn)
 119 {
 120     if(sched_is_scheduled(irn) && sched_has_prev(irn)) {
 121         ir_node *prev = sched_prev(irn);
 122         fprintf(F, "edge:{sourcename:\"");
 123         PRINT_NODEID(irn);
 124         fprintf(F, "\" targetname:\"");
 125         PRINT_NODEID(prev);
 126         fprintf(F, "\" color:magenta}\n");
 127     }
 128     return 1;
 129 }
 130
 131 void dump_ir_block_graph_sched(ir_graph *irg, const char *suffix) {
 132     DUMP_NODE_EDGE_FUNC old = get_dump_node_edge_hook();
 133
 134                 dump_consts_local(0);
 135     set_dump_node_edge_hook(sched_edge_hook);
 136     dump_ir_block_graph(irg, suffix);
 137     set_dump_node_edge_hook(old);
 138 }
 139
 140 static void clear_link(ir_node *irn, void *data)
 141 {
 142   set_irn_link(irn, NULL);
 143 }
 144
 145 static void collect_phis(ir_node *irn, void *data)
 146 {
 147   if(is_Phi(irn)) {
 148     ir_node *bl = get_nodes_block(irn);
 149     set_irn_link(irn, get_irn_link(bl));
 150     set_irn_link(bl, irn);
 151   }
 152 }
 153
 154 void be_clear_links(ir_graph *irg)
 155 {
 156         irg_walk_graph(irg, clear_link, NULL, NULL);
 157 }
 158
 159 void be_collect_phis(ir_graph *irg)
 160 {
 161         irg_walk_graph(irg, collect_phis, NULL, NULL);
 162 }