--- /dev/null
+(*===-- llvm_passmgr_builder.ml - LLVM OCaml Interface --------*- OCaml -*-===*
+ *
+ * The LLVM Compiler Infrastructure
+ *
+ * This file is distributed under the University of Illinois Open Source
+ * License. See LICENSE.TXT for details.
+ *
+ *===----------------------------------------------------------------------===*)
+
+type t
+
+external create : unit -> t
+ = "llvm_pmbuilder_create"
+external set_opt_level : int -> t -> unit
+ = "llvm_pmbuilder_set_opt_level"
+external set_size_level : int -> t -> unit
+ = "llvm_pmbuilder_set_size_level"
+external set_disable_unit_at_a_time : bool -> t -> unit
+ = "llvm_pmbuilder_set_disable_unit_at_a_time"
+external set_disable_unroll_loops : bool -> t -> unit
+ = "llvm_pmbuilder_set_disable_unroll_loops"
+external use_inliner_with_threshold : int -> t -> unit
+ = "llvm_pmbuilder_use_inliner_with_threshold"
+external populate_function_pass_manager
+ : [ `Function ] Llvm.PassManager.t -> t -> unit
+ = "llvm_pmbuilder_populate_function_pass_manager"
+external populate_module_pass_manager
+ : [ `Module ] Llvm.PassManager.t -> t -> unit
+ = "llvm_pmbuilder_populate_module_pass_manager"
+external populate_lto_pass_manager
+ : [ `Module ] Llvm.PassManager.t -> internalize:bool -> run_inliner:bool -> t -> unit
+ = "llvm_pmbuilder_populate_lto_pass_manager"
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