ir_visited_t block_visited; /**< For the walker that walks over all blocks. */
/* Attributes private to construction: */
unsigned is_matured:1; /**< If set, all in-nodes of the block are fixed. */
- unsigned is_dead:1; /**< If set, the block is dead (and could be replace by a Bad. */
unsigned marked:1; /**< Can be set/unset to temporary mark a block. */
ir_node **graph_arr; /**< An array to store all parameters. */
/* Attributes holding analyses information */