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      1 (* RUN: cp %s %T/executionengine.ml
      2  * RUN: %ocamlc -g -w +A -package llvm.executionengine -linkpkg %T/executionengine.ml -o %t
      3  * RUN: %t
      4  * RUN: %ocamlopt -g -w +A -package llvm.executionengine -linkpkg %T/executionengine.ml -o %t
      5  * RUN: %t
      6  * REQUIRES: native, object-emission
      7  * XFAIL: vg_leak
      8  *)
      9 
     10 open Llvm
     11 open Llvm_executionengine
     12 open Llvm_target
     13 
     14 (* Note that this takes a moment to link, so it's best to keep the number of
     15    individual tests low. *)
     16 
     17 let context = global_context ()
     18 let i8_type = Llvm.i8_type context
     19 let i32_type = Llvm.i32_type context
     20 let i64_type = Llvm.i64_type context
     21 let double_type = Llvm.double_type context
     22 
     23 let () =
     24   assert (Llvm_executionengine.initialize ())
     25 
     26 let bomb msg =
     27   prerr_endline msg;
     28   exit 2
     29 
     30 let define_getglobal m pg =
     31   let fn = define_function "getglobal" (function_type i32_type [||]) m in
     32   let b = builder_at_end (global_context ()) (entry_block fn) in
     33   let g = build_call pg [||] "" b in
     34   ignore (build_ret g b);
     35   fn
     36 
     37 let define_plus m =
     38   let fn = define_function "plus" (function_type i32_type [| i32_type;
     39                                                              i32_type |]) m in
     40   let b = builder_at_end (global_context ()) (entry_block fn) in
     41   let add = build_add (param fn 0) (param fn 1) "sum" b in
     42   ignore (build_ret add b);
     43   fn
     44 
     45 let test_executionengine () =
     46   let open Ctypes in
     47 
     48   (* create *)
     49   let m = create_module (global_context ()) "test_module" in
     50   let ee = create m in
     51 
     52   (* add plus *)
     53   ignore (define_plus m);
     54 
     55   (* declare global variable *)
     56   ignore (define_global "globvar" (const_int i32_type 23) m);
     57 
     58   (* add module *)
     59   let m2 = create_module (global_context ()) "test_module2" in
     60   add_module m2 ee;
     61 
     62   (* add global mapping *)
     63   (* BROKEN: see PR20656 *)
     64   (* let g = declare_function "g" (function_type i32_type [||]) m2 in
     65   let cg = coerce (Foreign.funptr (void @-> returning int32_t)) (ptr void)
     66                                   (fun () -> 42l) in
     67   add_global_mapping g cg ee;
     68 
     69   (* check g *)
     70   let cg' = get_pointer_to_global g (ptr void) ee in
     71   if 0 <> ptr_compare cg cg' then bomb "int pointers to g differ";
     72 
     73   (* add getglobal *)
     74   let getglobal = define_getglobal m2 g in*)
     75 
     76   (* run_static_ctors *)
     77   run_static_ctors ee;
     78 
     79   (* get a handle on globvar *)
     80   let varh    = get_global_value_address "globvar" int32_t ee in
     81   if 23l <> varh then bomb "get_global_value_address didn't work";
     82 
     83   (* call plus *)
     84   let cplusty = Foreign.funptr (int32_t @-> int32_t @-> returning int32_t) in
     85   let cplus   = get_function_address "plus" cplusty ee in
     86   if 4l <> cplus 2l 2l then bomb "plus didn't work";
     87 
     88   (* call getglobal *)
     89   (* let cgetglobalty = Foreign.funptr (void @-> returning int32_t) in
     90   let cgetglobal   = get_pointer_to_global getglobal cgetglobalty ee in
     91   if 42l <> cgetglobal () then bomb "getglobal didn't work"; *)
     92 
     93   (* remove_module *)
     94   remove_module m2 ee;
     95   dispose_module m2;
     96 
     97   (* run_static_dtors *)
     98   run_static_dtors ee;
     99 
    100   (* Show that the data layout binding links and runs.*)
    101   let dl = data_layout ee in
    102 
    103   (* Demonstrate that a garbage pointer wasn't returned. *)
    104   let ty = DataLayout.intptr_type context dl in
    105   if ty != i32_type && ty != i64_type then bomb "target_data did not work";
    106 
    107   (* dispose *)
    108   dispose ee
    109 
    110 let () =
    111   test_executionengine ();
    112   Gc.compact ()
    113