test/Bindings/Ocaml/scalar_opts.ml

   1 (* RUN: %ocamlopt -warn-error A llvm.cmxa llvm_scalar_opts.cmxa llvm_target.cmxa %s -o %t
   2  *)
   3
   4 (* Note: It takes several seconds for ocamlopt to link an executable with
   5          libLLVMCore.a, so it's better to write a big test than a bunch of
   6          little ones. *)
   7
   8 open Llvm
   9 open Llvm_scalar_opts
  10 open Llvm_target
  11
  12 let context = global_context ()
  13 let void_type = Llvm.void_type context
  14
  15 (* Tiny unit test framework - really just to help find which line is busted *)
  16 let suite name f =
  17   prerr_endline (name ^ ":");
  18   f ()
  19
  20
  21 (*===-- Fixture -----------------------------------------------------------===*)
  22
  23 let filename = Sys.argv.(1)
  24 let m = create_module context filename
  25 let mp = ModuleProvider.create m
  26
  27
  28 (*===-- Transforms --------------------------------------------------------===*)
  29
  30 let test_transforms () =
  31   let (++) x f = ignore (f x); x in
  32
  33   let fty = function_type void_type [| |] in
  34   let fn = define_function "fn" fty m in
  35   ignore (build_ret_void (builder_at_end context (entry_block fn)));
  36
  37   let td = TargetData.create (target_triple m) in
  38
  39   ignore (PassManager.create_function mp
  40            ++ TargetData.add td
  41            ++ add_instruction_combining
  42            ++ add_reassociation
  43            ++ add_gvn
  44            ++ add_cfg_simplification
  45            ++ add_constant_propagation
  46            ++ PassManager.initialize
  47            ++ PassManager.run_function fn
  48            ++ PassManager.finalize
  49            ++ PassManager.dispose);
  50
  51   TargetData.dispose td
  52
  53
  54 (*===-- Driver ------------------------------------------------------------===*)
  55
  56 let _ =
  57   suite "transforms" test_transforms;
  58   ModuleProvider.dispose mp