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      1 (* RUN: rm -rf %t.builddir
      2  * RUN: mkdir -p %t.builddir
      3  * RUN: cp %s %t.builddir
      4  * RUN: %ocamlopt -warn-error A llvm.cmxa llvm_target.cmxa llvm_executionengine.cmxa %t.builddir/executionengine.ml -o %t
      5  * RUN: %t
      6  * XFAIL: vg_leak
      7  *)
      8 
      9 open Llvm
     10 open Llvm_executionengine
     11 open Llvm_target
     12 
     13 (* Note that this takes a moment to link, so it's best to keep the number of
     14    individual tests low. *)
     15 
     16 let context = global_context ()
     17 let i8_type = Llvm.i8_type context
     18 let i32_type = Llvm.i32_type context
     19 let i64_type = Llvm.i64_type context
     20 let double_type = Llvm.double_type context
     21 
     22 let bomb msg =
     23   prerr_endline msg;
     24   exit 2
     25 
     26 let define_main_fn m retval =
     27   let fn =
     28     let str_arr_type = pointer_type (pointer_type i8_type) in
     29     define_function "main" (function_type i32_type [| i32_type;
     30                                                       str_arr_type;
     31                                                       str_arr_type |]) m in
     32   let b = builder_at_end (global_context ()) (entry_block fn) in
     33   ignore (build_ret (const_int i32_type retval) b);
     34   fn
     35 
     36 let define_plus m =
     37   let fn = define_function "plus" (function_type i32_type [| i32_type;
     38                                                              i32_type |]) m in
     39   let b = builder_at_end (global_context ()) (entry_block fn) in
     40   let add = build_add (param fn 0) (param fn 1) "sum" b in
     41   ignore (build_ret add b)
     42 
     43 let test_genericvalue () =
     44   let tu = (1, 2) in
     45   let ptrgv = GenericValue.of_pointer tu in
     46   assert (tu = GenericValue.as_pointer ptrgv);
     47   
     48   let fpgv = GenericValue.of_float double_type 2. in
     49   assert (2. = GenericValue.as_float double_type fpgv);
     50   
     51   let intgv = GenericValue.of_int i32_type 3 in
     52   assert (3  = GenericValue.as_int intgv);
     53   
     54   let i32gv = GenericValue.of_int32 i32_type (Int32.of_int 4) in
     55   assert ((Int32.of_int 4) = GenericValue.as_int32 i32gv);
     56   
     57   let nigv = GenericValue.of_nativeint i32_type (Nativeint.of_int 5) in
     58   assert ((Nativeint.of_int 5) = GenericValue.as_nativeint nigv);
     59   
     60   let i64gv = GenericValue.of_int64 i64_type (Int64.of_int 6) in
     61   assert ((Int64.of_int 6) = GenericValue.as_int64 i64gv)
     62 
     63 let test_executionengine () =
     64   (* create *)
     65   let m = create_module (global_context ()) "test_module" in
     66   let main = define_main_fn m 42 in
     67   
     68   let m2 = create_module (global_context ()) "test_module2" in
     69   define_plus m2;
     70   
     71   let ee = ExecutionEngine.create m in
     72   ExecutionEngine.add_module m2 ee;
     73   
     74   (* run_static_ctors *)
     75   ExecutionEngine.run_static_ctors ee;
     76   
     77   (* run_function_as_main *)
     78   let res = ExecutionEngine.run_function_as_main main [|"test"|] [||] ee in
     79   if 42 != res then bomb "main did not return 42";
     80   
     81   (* free_machine_code *)
     82   ExecutionEngine.free_machine_code main ee;
     83   
     84   (* find_function *)
     85   match ExecutionEngine.find_function "dne" ee with
     86   | Some _ -> raise (Failure "find_function 'dne' failed")
     87   | None ->
     88   
     89   match ExecutionEngine.find_function "plus" ee with
     90   | None -> raise (Failure "find_function 'plus' failed")
     91   | Some plus ->
     92   
     93   (* run_function *)
     94   let res = ExecutionEngine.run_function plus
     95                                          [| GenericValue.of_int i32_type 2;
     96                                             GenericValue.of_int i32_type 2 |]
     97                                          ee in
     98   if 4 != GenericValue.as_int res then bomb "plus did not work";
     99   
    100   (* remove_module *)
    101   Llvm.dispose_module (ExecutionEngine.remove_module m2 ee);
    102   
    103   (* run_static_dtors *)
    104   ExecutionEngine.run_static_dtors ee;
    105 
    106   (* Show that the data layout binding links and runs.*)
    107   let dl = ExecutionEngine.data_layout ee in
    108 
    109   (* Demonstrate that a garbage pointer wasn't returned. *)
    110   let ty = DataLayout.intptr_type context dl in
    111   if ty != i32_type && ty != i64_type then bomb "target_data did not work";
    112   
    113   (* dispose *)
    114   ExecutionEngine.dispose ee
    115 
    116 let _ =
    117   test_genericvalue ();
    118   test_executionengine ()
    119