extern struct rtl_opt_pass pass_initialize_regs;
extern struct rtl_opt_pass pass_combine;
extern struct rtl_opt_pass pass_if_after_combine;
+extern struct rtl_opt_pass pass_implicit_zee;
extern struct rtl_opt_pass pass_partition_blocks;
extern struct rtl_opt_pass pass_match_asm_constraints;
extern struct rtl_opt_pass pass_regmove;