test/Bindings/Ocaml/executionengine.ml

   1 (* RUN: %ocamlc -warn-error A llvm.cma llvm_executionengine.cma %s -o %t
   2  * RUN: ./%t %t.bc
   3  *)
   4
   5 open Llvm
   6 open Llvm_executionengine
   7
   8 (* Note that this takes a moment to link, so it's best to keep the number of
   9    individual tests low. *)
  10
  11 let bomb msg =
  12   prerr_endline msg;
  13   exit 2
  14
  15 let define_main_fn m retval =
  16   let fn =
  17     let str_arr_type = pointer_type (pointer_type i8_type) in
  18     define_function "main" (function_type i32_type [| i32_type;
  19                                                       str_arr_type;
  20                                                       str_arr_type |]) m in
  21   let b = builder_at_end (entry_block fn) in
  22   ignore (build_ret (const_int i32_type retval) b);
  23   fn
  24
  25 let define_plus m =
  26   let fn = define_function "plus" (function_type i32_type [| i32_type;
  27                                                              i32_type |]) m in
  28   let b = builder_at_end (entry_block fn) in
  29   let add = build_add (param fn 0) (param fn 1) "sum" b in
  30   ignore (build_ret add b)
  31
  32 let test_genericvalue () =
  33   let tu = (1, 2) in
  34   let ptrgv = GenericValue.of_pointer tu in
  35   assert (tu = GenericValue.as_pointer ptrgv);
  36
  37   let fpgv = GenericValue.of_float double_type 2. in
  38   assert (2. = GenericValue.as_float double_type fpgv);
  39
  40   let intgv = GenericValue.of_int i32_type 3 in
  41   assert (3  = GenericValue.as_int intgv);
  42
  43   let i32gv = GenericValue.of_int32 i32_type (Int32.of_int 4) in
  44   assert ((Int32.of_int 4) = GenericValue.as_int32 i32gv);
  45
  46   let nigv = GenericValue.of_nativeint i32_type (Nativeint.of_int 5) in
  47   assert ((Nativeint.of_int 5) = GenericValue.as_nativeint nigv);
  48
  49   let i64gv = GenericValue.of_int64 i64_type (Int64.of_int 6) in
  50   assert ((Int64.of_int 6) = GenericValue.as_int64 i64gv)
  51
  52 let test_executionengine () =
  53   (* create *)
  54   let m = create_module "test_module" in
  55   let main = define_main_fn m 42 in
  56
  57   let m2 = create_module "test_module2" in
  58   define_plus m2;
  59
  60   let ee = ExecutionEngine.create (ModuleProvider.create m) in
  61   let mp2 = ModuleProvider.create m2 in
  62   ExecutionEngine.add_module_provider mp2 ee;
  63
  64   (* run_static_ctors *)
  65   ExecutionEngine.run_static_ctors ee;
  66
  67   (* run_function_as_main *)
  68   let res = ExecutionEngine.run_function_as_main main [|"test"|] [||] ee in
  69   if 42 != res then bomb "main did not return 42";
  70
  71   (* free_machine_code *)
  72   ExecutionEngine.free_machine_code main ee;
  73
  74   (* find_function *)
  75   match ExecutionEngine.find_function "dne" ee with
  76   | Some _ -> raise (Failure "find_function 'dne' failed")
  77   | None ->
  78
  79   match ExecutionEngine.find_function "plus" ee with
  80   | None -> raise (Failure "find_function 'plus' failed")
  81   | Some plus ->
  82
  83   (* run_function *)
  84   let res = ExecutionEngine.run_function plus
  85                                          [| GenericValue.of_int i32_type 2;
  86                                             GenericValue.of_int i32_type 2 |]
  87                                          ee in
  88   if 4 != GenericValue.as_int res then bomb "plus did not work";
  89
  90   (* remove_module_provider *)
  91   Llvm.dispose_module (ExecutionEngine.remove_module_provider mp2 ee);
  92
  93   (* run_static_dtors *)
  94   ExecutionEngine.run_static_dtors ee;
  95
  96   (* dispose *)
  97   ExecutionEngine.dispose ee
  98
  99 let _ =
 100   test_genericvalue ();
 101   test_executionengine ()