+/*
+ * Converts a debug_action into a string.
+ */
+const char *dbg_action_2_str(dbg_action a)
+{
+#define CASE(a) case a: return #a
+
+ switch (a) {
+ CASE(dbg_error);
+ CASE(dbg_opt_ssa);
+ CASE(dbg_opt_auxnode);
+ CASE(dbg_const_eval);
+ CASE(dbg_opt_cse);
+ CASE(dbg_straightening);
+ CASE(dbg_if_simplification);
+ CASE(dbg_algebraic_simplification);
+ CASE(dbg_write_after_write);
+ CASE(dbg_write_after_read);
+ CASE(dbg_read_after_write);
+ CASE(dbg_read_after_read);
+ CASE(dbg_read_a_const);
+ CASE(dbg_rem_poly_call);
+ CASE(dbg_dead_code);
+ CASE(dbg_opt_confirm);
+ CASE(dbg_gvn_pre);
+ CASE(dbg_combo);
+ CASE(dbg_jumpthreading);
+ CASE(dbg_backend);
+ default:
+ if (a <= dbg_max)
+ return "string conversion not implemented";
+ else
+ panic("Missing debug action in dbg_action_2_str()");
+ }
+#undef CASE
+}
+
+void default_dbg_info_merge_pair(ir_node *nw, ir_node *old, dbg_action info)
+{
+ dbg_info *new_db = get_irn_dbg_info(nw);
+ (void) info;
+ if (new_db == NULL)
+ set_irn_dbg_info(nw, get_irn_dbg_info(old));
+}
+
+void default_dbg_info_merge_sets(ir_node **new_nodes, int n_new_nodes,
+ ir_node **old_nodes, int n_old_nodes,
+ dbg_action info)
+{
+ (void) info;
+ if (n_old_nodes == 1) {
+ dbg_info *old_db = get_irn_dbg_info(old_nodes[0]);
+ int i;
+
+ for (i = 0; i < n_new_nodes; ++i)
+ if (get_irn_dbg_info(new_nodes[i]) == NULL)
+ set_irn_dbg_info(new_nodes[i], old_db);
+ }
+}
+
+/** The debug info retriever function. */
+static retrieve_dbg_func retrieve_dbg = NULL;
+static retrieve_type_dbg_func retrieve_type_dbg = NULL;
+
+void ir_set_debug_retrieve(retrieve_dbg_func func)
+{
+ retrieve_dbg = func;
+}
+
+const char *ir_retrieve_dbg_info(const dbg_info *dbg, unsigned *line)
+{
+ if (retrieve_dbg)
+ return retrieve_dbg(dbg, line);
+
+ *line = 0;
+ return NULL;
+}
+
+void ir_set_type_debug_retrieve(retrieve_type_dbg_func func)
+{
+ retrieve_type_dbg = func;
+}
+
+void ir_retrieve_type_dbg_info(char *buffer, size_t buffer_size,
+ const type_dbg_info *tdbgi)
+{
+ if (retrieve_type_dbg)
+ retrieve_type_dbg(buffer, buffer_size, tdbgi);
+ assert(buffer_size > 0);
+ buffer[0] = 0;
+}
+
+void ir_dbg_info_snprint(char *buf, size_t bufsize, const dbg_info *dbg)
+{
+ unsigned line;
+ const char *source = ir_retrieve_dbg_info(dbg, &line);
+
+ if (source == NULL) {
+ assert(bufsize > 0);
+ buf[0] = 0;
+ return;
+ }
+ snprintf(buf, bufsize, "%s:%u", source, line);