Bugfix

[libfirm] / ir / be / becopyopt.h

diff --git a/ir/be/becopyopt.h b/ir/be/becopyopt.h
index 3b56cf4..c18e387 100644 (file)
--- a/ir/be/becopyopt.h
+++ b/ir/be/becopyopt.h
@@ -107,7 +107,7 @@ void free_copy_opt(copy_opt_t *co);
 /**
  * Checks if a node is optimizable, viz. is a target of a 'copy-op'
  */
-#define is_optimizable(arch_env, irn) (is_Phi(irn) || is_Copy(arch_env, irn))
+#define is_optimizable(arch_env, irn) ((is_Phi(irn) && mode_is_datab(get_irn_mode(irn))) || is_Copy(arch_env, irn))
 
 /**
  * Checks if the irn is a non-interfering argument of a node which 'is_optimizable'
@@ -129,6 +129,18 @@ int get_costs_loop_depth(ir_node *root, ir_node* arg, int pos);
  */
 int get_costs_all_one(ir_node *root, ir_node* arg, int pos);
 
+/**
+ * Returns the maximal costs possible, i.e. the costs if all
+ * pairs would be assigned different registers.
+ */
+int co_get_max_copy_costs(const copy_opt_t *co);
+
+/**
+ * Returns the inevitable costs, i.e. the costs of
+ * all copy pairs which interfere.
+ */
+int co_get_inevit_copy_costs(const copy_opt_t *co);
+
 /**
  * Returns the current costs the copies are causing.
  * The result includes inevitable costs and the costs