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      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 ()
    116