executionengine.ml revision 5371aa2a1c9a4eeecffdb9ab7b2175732e49475b 
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
5open Llvm
6open Llvm_executionengine
7open 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
12let bomb msg =
13  prerr_endline msg;
14  exit 2
15
16let 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 (global_context ()) (entry_block fn) in
23  ignore (build_ret (const_int i32_type retval) b);
24  fn
25
26let 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 (global_context ()) (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
33let 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
53let test_executionengine () =
54  (* create *)
55  let m = create_module (global_context ()) "test_module" in
56  let main = define_main_fn m 42 in
57  
58  let m2 = create_module (global_context ()) "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
107let _ =
108  test_genericvalue ();
109  test_executionengine ()
110