struct obstack obst; /**< An obstack for temporary storage. */
be_ra_chordal_opts_t *opts; /**< A pointer to the chordal ra options. */
firm_dbg_module_t *dbg; /**< Debug module for the chordal register allocator. */
- const be_main_env_t *main_env; /**< Environment with back-end data. */
+ const be_irg_t *birg; /**< Back-end IRG session. */
dom_front_info_t *dom_front; /**< Dominance frontiers. */
ir_graph *irg; /**< The graph under examination. */
const arch_register_class_t *cls; /**< The current register class. */
#define border_prev(b) (list_entry((b)->list.prev, border_t, list))
#define chordal_has_class(chordal_env, irn) \
- arch_irn_has_reg_class(chordal_env->main_env->arch_env, irn, -1, chordal_env->cls)
+ arch_irn_consider_in_reg_alloc(chordal_env->birg->main_env->arch_env, chordal_env->cls, irn)
int nodes_interfere(const be_chordal_env_t *env, const ir_node *a, const ir_node *b);