llvm-6502/test/Bindings/Ocaml/executionengine.ml

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(* RUN: %ocamlc -warn-error A llvm.cma llvm_target.cma llvm_executionengine.cma %s -o %t
* RUN: ./%t %t.bc
*)
open Llvm
open Llvm_executionengine
open Llvm_target
(* Note that this takes a moment to link, so it's best to keep the number of
individual tests low. *)
let bomb msg =
prerr_endline msg;
exit 2
let define_main_fn m retval =
let fn =
let str_arr_type = pointer_type (pointer_type i8_type) in
define_function "main" (function_type i32_type [| i32_type;
str_arr_type;
str_arr_type |]) m in
let b = builder_at_end (entry_block fn) in
ignore (build_ret (const_int i32_type retval) b);
fn
let define_plus m =
let fn = define_function "plus" (function_type i32_type [| i32_type;
i32_type |]) m in
let b = builder_at_end (entry_block fn) in
let add = build_add (param fn 0) (param fn 1) "sum" b in
ignore (build_ret add b)
let test_genericvalue () =
let tu = (1, 2) in
let ptrgv = GenericValue.of_pointer tu in
assert (tu = GenericValue.as_pointer ptrgv);
let fpgv = GenericValue.of_float double_type 2. in
assert (2. = GenericValue.as_float double_type fpgv);
let intgv = GenericValue.of_int i32_type 3 in
assert (3 = GenericValue.as_int intgv);
let i32gv = GenericValue.of_int32 i32_type (Int32.of_int 4) in
assert ((Int32.of_int 4) = GenericValue.as_int32 i32gv);
let nigv = GenericValue.of_nativeint i32_type (Nativeint.of_int 5) in
assert ((Nativeint.of_int 5) = GenericValue.as_nativeint nigv);
let i64gv = GenericValue.of_int64 i64_type (Int64.of_int 6) in
assert ((Int64.of_int 6) = GenericValue.as_int64 i64gv)
let test_executionengine () =
(* create *)
let m = create_module "test_module" in
let main = define_main_fn m 42 in
let m2 = create_module "test_module2" in
define_plus m2;
let ee = ExecutionEngine.create (ModuleProvider.create m) in
let mp2 = ModuleProvider.create m2 in
ExecutionEngine.add_module_provider mp2 ee;
(* run_static_ctors *)
ExecutionEngine.run_static_ctors ee;
(* run_function_as_main *)
let res = ExecutionEngine.run_function_as_main main [|"test"|] [||] ee in
if 42 != res then bomb "main did not return 42";
(* free_machine_code *)
ExecutionEngine.free_machine_code main ee;
(* find_function *)
match ExecutionEngine.find_function "dne" ee with
| Some _ -> raise (Failure "find_function 'dne' failed")
| None ->
match ExecutionEngine.find_function "plus" ee with
| None -> raise (Failure "find_function 'plus' failed")
| Some plus ->
(* run_function *)
let res = ExecutionEngine.run_function plus
[| GenericValue.of_int i32_type 2;
GenericValue.of_int i32_type 2 |]
ee in
if 4 != GenericValue.as_int res then bomb "plus did not work";
(* remove_module_provider *)
Llvm.dispose_module (ExecutionEngine.remove_module_provider mp2 ee);
(* run_static_dtors *)
ExecutionEngine.run_static_dtors ee;
(* Show that the target data binding links and runs.*)
let td = ExecutionEngine.target_data ee in
(* Demonstrate that a garbage pointer wasn't returned. *)
let ty = intptr_type td in
if ty != i32_type && ty != i64_type then bomb "target_data did not work";
(* dispose *)
ExecutionEngine.dispose ee
let _ =
test_genericvalue ();
test_executionengine ()