#define hook_new_graph(irg, ent) hook_exec(hook_new_graph, (ctx, irg, ent))
#define hook_free_graph(irg) hook_exec(hook_free_graph, (ctx, irg))
#define hook_irg_walk(irg, pre, post) hook_exec(hook_irg_walk, (ctx, irg, pre, post))
#define hook_new_graph(irg, ent) hook_exec(hook_new_graph, (ctx, irg, ent))
#define hook_free_graph(irg) hook_exec(hook_free_graph, (ctx, irg))
#define hook_irg_walk(irg, pre, post) hook_exec(hook_irg_walk, (ctx, irg, pre, post))