test/Bindings/Ocaml/executionengine.ml

   1 (* RUN: %ocamlopt -warn-error A llvm.cmxa llvm_target.cmxa llvm_executionengine.cmxa %s -o %t
   2  * RUN: %t
   3  * XFAIL: vg_leak
   4  *)
   5
   6 open Llvm
   7 open Llvm_executionengine
   8 open Llvm_target
   9
  10 (* Note that this takes a moment to link, so it's best to keep the number of
  11    individual tests low. *)
  12
  13 let context = global_context ()
  14 let i8_type = Llvm.i8_type context
  15 let i32_type = Llvm.i32_type context
  16 let i64_type = Llvm.i64_type context
  17 let double_type = Llvm.double_type context
  18
  19 let bomb msg =
  20   prerr_endline msg;
  21   exit 2
  22
  23 let define_main_fn m retval =
  24   let fn =
  25     let str_arr_type = pointer_type (pointer_type i8_type) in
  26     define_function "main" (function_type i32_type [| i32_type;
  27                                                       str_arr_type;
  28                                                       str_arr_type |]) m in
  29   let b = builder_at_end (global_context ()) (entry_block fn) in
  30   ignore (build_ret (const_int i32_type retval) b);
  31   fn
  32
  33 let define_plus m =
  34   let fn = define_function "plus" (function_type i32_type [| i32_type;
  35                                                              i32_type |]) m in
  36   let b = builder_at_end (global_context ()) (entry_block fn) in
  37   let add = build_add (param fn 0) (param fn 1) "sum" b in
  38   ignore (build_ret add b)
  39
  40 let test_genericvalue () =
  41   let tu = (1, 2) in
  42   let ptrgv = GenericValue.of_pointer tu in
  43   assert (tu = GenericValue.as_pointer ptrgv);
  44
  45   let fpgv = GenericValue.of_float double_type 2. in
  46   assert (2. = GenericValue.as_float double_type fpgv);
  47
  48   let intgv = GenericValue.of_int i32_type 3 in
  49   assert (3  = GenericValue.as_int intgv);
  50
  51   let i32gv = GenericValue.of_int32 i32_type (Int32.of_int 4) in
  52   assert ((Int32.of_int 4) = GenericValue.as_int32 i32gv);
  53
  54   let nigv = GenericValue.of_nativeint i32_type (Nativeint.of_int 5) in
  55   assert ((Nativeint.of_int 5) = GenericValue.as_nativeint nigv);
  56
  57   let i64gv = GenericValue.of_int64 i64_type (Int64.of_int 6) in
  58   assert ((Int64.of_int 6) = GenericValue.as_int64 i64gv)
  59
  60 let test_executionengine () =
  61   (* create *)
  62   let m = create_module (global_context ()) "test_module" in
  63   let main = define_main_fn m 42 in
  64
  65   let m2 = create_module (global_context ()) "test_module2" in
  66   define_plus m2;
  67
  68   let ee = ExecutionEngine.create m in
  69   ExecutionEngine.add_module m2 ee;
  70
  71   (* run_static_ctors *)
  72   ExecutionEngine.run_static_ctors ee;
  73
  74   (* run_function_as_main *)
  75   let res = ExecutionEngine.run_function_as_main main [|"test"|] [||] ee in
  76   if 42 != res then bomb "main did not return 42";
  77
  78   (* free_machine_code *)
  79   ExecutionEngine.free_machine_code main ee;
  80
  81   (* find_function *)
  82   match ExecutionEngine.find_function "dne" ee with
  83   | Some _ -> raise (Failure "find_function 'dne' failed")
  84   | None ->
  85
  86   match ExecutionEngine.find_function "plus" ee with
  87   | None -> raise (Failure "find_function 'plus' failed")
  88   | Some plus ->
  89
  90   (* run_function *)
  91   let res = ExecutionEngine.run_function plus
  92                                          [| GenericValue.of_int i32_type 2;
  93                                             GenericValue.of_int i32_type 2 |]
  94                                          ee in
  95   if 4 != GenericValue.as_int res then bomb "plus did not work";
  96
  97   (* remove_module *)
  98   Llvm.dispose_module (ExecutionEngine.remove_module m2 ee);
  99
 100   (* run_static_dtors *)
 101   ExecutionEngine.run_static_dtors ee;
 102
 103   (* Show that the target data binding links and runs.*)
 104   let td = ExecutionEngine.target_data ee in
 105
 106   (* Demonstrate that a garbage pointer wasn't returned. *)
 107   let ty = intptr_type td in
 108   if ty != i32_type && ty != i64_type then bomb "target_data did not work";
 109
 110   (* dispose *)
 111   ExecutionEngine.dispose ee
 112
 113 let _ =
 114   test_genericvalue ();
 115   test_executionengine ()