test/Bindings/OCaml/target.ml

   1 (* RUN: rm -rf %t && mkdir -p %t && cp %s %t/target.ml
   2  * RUN: %ocamlc -g -w +A -package llvm.target -package llvm.all_backends -linkpkg %t/target.ml -o %t/executable
   3  * RUN: %ocamlopt -g -w +A -package llvm.target -package llvm.all_backends -linkpkg %t/target.ml -o %t/executable
   4  * RUN: %t/executable %t/bitcode.bc
   5  * XFAIL: vg_leak
   6  *)
   7
   8 (* Note: It takes several seconds for ocamlopt to link an executable with
   9          libLLVMCore.a, so it's better to write a big test than a bunch of
  10          little ones. *)
  11
  12 open Llvm
  13 open Llvm_target
  14
  15 let () = Llvm_all_backends.initialize ()
  16
  17 let context = global_context ()
  18 let i32_type = Llvm.i32_type context
  19 let i64_type = Llvm.i64_type context
  20
  21 (* Tiny unit test framework - really just to help find which line is busted *)
  22 let print_checkpoints = false
  23
  24 let _ =
  25   Printexc.record_backtrace true
  26
  27 let assert_equal a b =
  28   if a <> b then failwith "assert_equal"
  29
  30
  31 (*===-- Fixture -----------------------------------------------------------===*)
  32
  33 let filename = Sys.argv.(1)
  34 let m = create_module context filename
  35
  36 let target = Target.by_triple (Target.default_triple ())
  37
  38 let machine = TargetMachine.create (Target.default_triple ()) target
  39
  40 (*===-- Data Layout -------------------------------------------------------===*)
  41
  42 let test_target_data () =
  43   let module DL = DataLayout in
  44   let layout = "e-p:32:32-f64:32:64-v64:32:64-v128:32:128-n32-S32" in
  45   let dl     = DL.of_string layout in
  46   let sty    = struct_type context [| i32_type; i64_type |] in
  47
  48   assert_equal (DL.as_string dl) layout;
  49   assert_equal (DL.byte_order dl) Endian.Little;
  50   assert_equal (DL.pointer_size dl) 4;
  51   assert_equal (DL.intptr_type context dl) i32_type;
  52   assert_equal (DL.qualified_pointer_size 0 dl) 4;
  53   assert_equal (DL.qualified_intptr_type context 0 dl) i32_type;
  54   assert_equal (DL.size_in_bits sty dl) (Int64.of_int 96);
  55   assert_equal (DL.store_size sty dl) (Int64.of_int 12);
  56   assert_equal (DL.abi_size sty dl) (Int64.of_int 12);
  57   assert_equal (DL.stack_align sty dl) 4;
  58   assert_equal (DL.preferred_align sty dl) 8;
  59   assert_equal (DL.preferred_align_of_global (declare_global sty "g" m) dl) 8;
  60   assert_equal (DL.element_at_offset sty (Int64.of_int 1) dl) 0;
  61   assert_equal (DL.offset_of_element sty 1 dl) (Int64.of_int 4)
  62
  63
  64 (*===-- Target ------------------------------------------------------------===*)
  65
  66 let test_target () =
  67   let module T = Target in
  68   ignore (T.succ target);
  69   ignore (T.name target);
  70   ignore (T.description target);
  71   ignore (T.has_jit target);
  72   ignore (T.has_target_machine target);
  73   ignore (T.has_asm_backend target)
  74
  75
  76 (*===-- Target Machine ----------------------------------------------------===*)
  77
  78 let test_target_machine () =
  79   let module TM = TargetMachine in
  80   assert_equal (TM.target machine) target;
  81   assert_equal (TM.triple machine) (Target.default_triple ());
  82   assert_equal (TM.cpu machine) "";
  83   assert_equal (TM.features machine) "";
  84   ignore (TM.data_layout machine);
  85   TM.set_verbose_asm true machine;
  86   let pm = PassManager.create () in
  87   TM.add_analysis_passes pm machine
  88
  89
  90 (*===-- Code Emission -----------------------------------------------------===*)
  91
  92 let test_code_emission () =
  93   TargetMachine.emit_to_file m CodeGenFileType.ObjectFile filename machine;
  94   try
  95     TargetMachine.emit_to_file m CodeGenFileType.ObjectFile
  96                                "/nonexistent/file" machine;
  97     failwith "must raise"
  98   with Llvm_target.Error _ ->
  99     ();
 100
 101   let buf = TargetMachine.emit_to_memory_buffer m CodeGenFileType.ObjectFile
 102                                                 machine in
 103   Llvm.MemoryBuffer.dispose buf
 104
 105
 106 (*===-- Driver ------------------------------------------------------------===*)
 107
 108 let _ =
 109   test_target_data ();
 110   test_target ();
 111   test_target_machine ();
 112   test_code_emission ();
 113   dispose_module m