test/Bindings/Ocaml/executionengine.ml

   1 (* RUN: %ocamlc -warn-error A llvm.cma llvm_target.cma llvm_executionengine.cma %s -o %t 2> /dev/null
   2  * RUN: ./%t %t.bc
   3  *)
   4
   5 open Llvm
   6 open Llvm_executionengine
   7 open Llvm_target
   8
   9 (* Note that this takes a moment to link, so it's best to keep the number of
  10    individual tests low. *)
  11
  12 let bomb msg =
  13   prerr_endline msg;
  14   exit 2
  15
  16 let define_main_fn m retval =
  17   let fn =
  18     let str_arr_type = pointer_type (pointer_type i8_type) in
  19     define_function "main" (function_type i32_type [| i32_type;
  20                                                       str_arr_type;
  21                                                       str_arr_type |]) m in
  22   let b = builder_at_end (entry_block fn) in
  23   ignore (build_ret (const_int i32_type retval) b);
  24   fn
  25
  26 let define_plus m =
  27   let fn = define_function "plus" (function_type i32_type [| i32_type;
  28                                                              i32_type |]) m in
  29   let b = builder_at_end (entry_block fn) in
  30   let add = build_add (param fn 0) (param fn 1) "sum" b in
  31   ignore (build_ret add b)
  32
  33 let test_genericvalue () =
  34   let tu = (1, 2) in
  35   let ptrgv = GenericValue.of_pointer tu in
  36   assert (tu = GenericValue.as_pointer ptrgv);
  37
  38   let fpgv = GenericValue.of_float double_type 2. in
  39   assert (2. = GenericValue.as_float double_type fpgv);
  40
  41   let intgv = GenericValue.of_int i32_type 3 in
  42   assert (3  = GenericValue.as_int intgv);
  43
  44   let i32gv = GenericValue.of_int32 i32_type (Int32.of_int 4) in
  45   assert ((Int32.of_int 4) = GenericValue.as_int32 i32gv);
  46
  47   let nigv = GenericValue.of_nativeint i32_type (Nativeint.of_int 5) in
  48   assert ((Nativeint.of_int 5) = GenericValue.as_nativeint nigv);
  49
  50   let i64gv = GenericValue.of_int64 i64_type (Int64.of_int 6) in
  51   assert ((Int64.of_int 6) = GenericValue.as_int64 i64gv)
  52
  53 let test_executionengine () =
  54   (* create *)
  55   let m = create_module "test_module" in
  56   let main = define_main_fn m 42 in
  57
  58   let m2 = create_module "test_module2" in
  59   define_plus m2;
  60
  61   let ee = ExecutionEngine.create (ModuleProvider.create m) in
  62   let mp2 = ModuleProvider.create m2 in
  63   ExecutionEngine.add_module_provider mp2 ee;
  64
  65   (* run_static_ctors *)
  66   ExecutionEngine.run_static_ctors ee;
  67
  68   (* run_function_as_main *)
  69   let res = ExecutionEngine.run_function_as_main main [|"test"|] [||] ee in
  70   if 42 != res then bomb "main did not return 42";
  71
  72   (* free_machine_code *)
  73   ExecutionEngine.free_machine_code main ee;
  74
  75   (* find_function *)
  76   match ExecutionEngine.find_function "dne" ee with
  77   | Some _ -> raise (Failure "find_function 'dne' failed")
  78   | None ->
  79
  80   match ExecutionEngine.find_function "plus" ee with
  81   | None -> raise (Failure "find_function 'plus' failed")
  82   | Some plus ->
  83
  84   (* run_function *)
  85   let res = ExecutionEngine.run_function plus
  86                                          [| GenericValue.of_int i32_type 2;
  87                                             GenericValue.of_int i32_type 2 |]
  88                                          ee in
  89   if 4 != GenericValue.as_int res then bomb "plus did not work";
  90
  91   (* remove_module_provider *)
  92   Llvm.dispose_module (ExecutionEngine.remove_module_provider mp2 ee);
  93
  94   (* run_static_dtors *)
  95   ExecutionEngine.run_static_dtors ee;
  96
  97   (* Show that the target data binding links and runs.*)
  98   let td = ExecutionEngine.target_data ee in
  99
 100   (* Demonstrate that a garbage pointer wasn't returned. *)
 101   let ty = intptr_type td in
 102   if ty != i32_type && ty != i64_type then bomb "target_data did not work";
 103
 104   (* dispose *)
 105   ExecutionEngine.dispose ee
 106
 107 let _ =
 108   test_genericvalue ();
 109   test_executionengine ()