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