+/*
+ * 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_backend);
+ default:
+ if (a <= dbg_max)
+ return "string conversion not implemented";
+ else
+ assert(!"Missing debug action in dbg_action_2_str()");
+ return NULL;
+ }
+#undef CASE
+} /* dbg_action_2_str */
+
+
+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));
+} /* default_dbg_info_merge_pair */
+
+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);
+ }
+} /* default_dbg_info_merge_sets */
+
+/** The debug info retriever function. */
+static retrieve_dbg_func retrieve_dbg = NULL;
+
+/* Sets a debug info retriever. */
+void ir_set_debug_retrieve(retrieve_dbg_func func) {
+ retrieve_dbg = func;