+external add_sccp : [<Llvm.PassManager.any] Llvm.PassManager.t -> unit
+ = "llvm_add_sccp"
+external add_dead_store_elimination : [<Llvm.PassManager.any] Llvm.PassManager.t
+ -> unit
+ = "llvm_add_dead_store_elimination"
+external add_aggressive_dce : [<Llvm.PassManager.any] Llvm.PassManager.t -> unit
+ = "llvm_add_aggressive_dce"
+external
+add_scalar_repl_aggregation : [<Llvm.PassManager.any] Llvm.PassManager.t -> unit
+ = "llvm_add_scalar_repl_aggregation"
+external add_ind_var_simplification : [<Llvm.PassManager.any] Llvm.PassManager.t
+ -> unit
+ = "llvm_add_ind_var_simplification"
+external
+add_instruction_combination : [<Llvm.PassManager.any] Llvm.PassManager.t
+ -> unit
+ = "llvm_add_instruction_combination"
+external add_licm : [<Llvm.PassManager.any] Llvm.PassManager.t
+ -> unit
+ = "llvm_add_licm"
+external add_loop_unswitch : [<Llvm.PassManager.any] Llvm.PassManager.t
+ -> unit
+ = "llvm_add_loop_unswitch"
+external add_loop_unroll : [<Llvm.PassManager.any] Llvm.PassManager.t
+ -> unit
+ = "llvm_add_loop_unroll"
+external add_loop_rotation : [<Llvm.PassManager.any] Llvm.PassManager.t
+ -> unit
+ = "llvm_add_loop_rotation"