typedef struct ir_op ir_op, *ir_op_ptr;
typedef struct ir_mode ir_mode, *ir_mode_ptr;
typedef struct ir_edge_t ir_edge_t, *ir_edge_ptr;
+typedef struct ir_heights_t ir_heights_t;
typedef struct tarval tarval, *ir_tarval_ptr;
typedef struct ir_enum_const ir_enum_const, *ir_enum_const_ptr;
typedef struct ir_type ir_type, *ir_type_ptr;
typedef struct ir_cdep ir_cdep, *ir_cdep_ptr;
typedef struct sn_entry *seqno_t;
typedef struct arch_irn_ops_t arch_irn_ops_t;
-typedef struct ident_if_t ident_if_t;
typedef struct type_identify_if_t type_identify_if_t;
typedef struct ir_graph_pass_t ir_graph_pass_t;
typedef struct ir_prog_pass_t ir_prog_pass_t;