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      1 (* RUN: cp %s %T/analysis.ml
      2  * RUN: %ocamlc -g -w +A -package llvm.analysis -linkpkg %T/analysis.ml -o %t
      3  * RUN: %t
      4  * RUN: %ocamlopt -g -w +A -package llvm.analysis -linkpkg %T/analysis.ml -o %t
      5  * RUN: %t
      6  * XFAIL: vg_leak
      7  *)
      8 
      9 open Llvm
     10 open Llvm_analysis
     11 
     12 (* Note that this takes a moment to link, so it's best to keep the number of
     13    individual tests low. *)
     14 
     15 let context = global_context ()
     16 
     17 let test x = if not x then exit 1 else ()
     18 
     19 let bomb msg =
     20   prerr_endline msg;
     21   exit 2
     22 
     23 let _ =
     24   let fty = function_type (void_type context) [| |] in
     25   let m = create_module context "valid_m" in
     26   let fn = define_function "valid_fn" fty m in
     27   let at_entry = builder_at_end context (entry_block fn) in
     28   ignore (build_ret_void at_entry);
     29 
     30 
     31   (* Test that valid constructs verify. *)
     32   begin match verify_module m with
     33     Some msg -> bomb "valid module failed verification!"
     34   | None -> ()
     35   end;
     36 
     37   if not (verify_function fn) then bomb "valid function failed verification!";
     38 
     39 
     40   (* Test that invalid constructs do not verify.
     41      A basic block can contain only one terminator instruction. *)
     42   ignore (build_ret_void at_entry);
     43 
     44   begin match verify_module m with
     45     Some msg -> ()
     46   | None -> bomb "invalid module passed verification!"
     47   end;
     48 
     49   if verify_function fn then bomb "invalid function passed verification!";
     50 
     51 
     52   dispose_module m
     53 
     54   (* Don't bother to test assert_valid_{module,function}. *)
     55