typedef struct dbg_info dbg_info, *dbg_info_ptr;
typedef const struct _ident ident, *ir_ident_ptr;
typedef struct dbg_info dbg_info, *dbg_info_ptr;
typedef const struct _ident ident, *ir_ident_ptr;
typedef struct _ir_phase ir_phase, *ir_phase_ptr;
typedef struct _ir_extblk ir_extblk, *ir_extblk_ptr;
typedef struct ir_exec_freq ir_exec_freq, *ir_exec_freq_ptr;
typedef struct _ir_phase ir_phase, *ir_phase_ptr;
typedef struct _ir_extblk ir_extblk, *ir_extblk_ptr;
typedef struct ir_exec_freq ir_exec_freq, *ir_exec_freq_ptr;
typedef void irg_walk_func(ir_node *, void *);
typedef void irg_reg_walk_func(ir_region *, void *);
typedef void irg_walk_func(ir_node *, void *);
typedef void irg_reg_walk_func(ir_region *, void *);