extern struct gimple_opt_pass pass_merge_phi;
extern struct gimple_opt_pass pass_split_crit_edges;
extern struct gimple_opt_pass pass_pre;
+extern unsigned int tail_merge_optimize (unsigned int);
extern struct gimple_opt_pass pass_profile;
extern struct gimple_opt_pass pass_strip_predict_hints;
extern struct gimple_opt_pass pass_lower_complex_O0;
extern struct gimple_opt_pass pass_expand_omp;
extern struct gimple_opt_pass pass_expand_omp_ssa;
extern struct gimple_opt_pass pass_object_sizes;
+extern struct gimple_opt_pass pass_strlen;
extern struct gimple_opt_pass pass_fold_builtins;
extern struct gimple_opt_pass pass_stdarg;
extern struct gimple_opt_pass pass_early_warn_uninitialized;