Adding ocaml language bindings for the vmcore and bitwriter libraries. These are

built atop the C language bindings, and user programs can link with them as 
such:

  # Bytecode
  ocamlc -cc g++ llvm.cma llvmbitwriter.cma -o example example.ml
  # Native
  ocamlopt -cc g++ llvm.cmxa llvmbitwriter.cmxa -o example.opt example.ml

The vmcore.ml test exercises most/all of the APIs thus far bound. Unfortunately,
they're not yet numerous enough to write hello world. But:

  $ cat example.ml
  (* example.ml *)
  
  open Llvm
  open Llvm_bitwriter
  
  let _ =
    let filename = Sys.argv.(1) in
    let m = create_module filename in
    
    let v = make_int_constant i32_type 42 false in
    let g = define_global "hello_world" v m in
    
    if not (write_bitcode_file m filename) then exit 1;
    
    dispose_module m;

  $ ocamlc -cc g++ llvm.cma llvm_bitwriter.cma -o example example.ml
  File "example.ml", line 11, characters 6-7:
  Warning Y: unused variable g.
  $ ./example example.bc
  $ llvm-dis < example.bc
  ; ModuleID = '<stdin>'
  @hello_world = global i32 42            ; <i32*> [#uses=0]

The ocaml test cases provide effective tests for the C interfaces.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42093 91177308-0d34-0410-b5e6-96231b3b80d8

4 files changed, 255 insertions, 1 deletions

diff --git a/test/Bindings/Ocaml/bitwriter.ml b/test/Bindings/Ocaml/bitwriter.ml
new file mode 100644
index 0000000000..5421e09bce
--- /dev/null
+++ b/test/Bindings/Ocaml/bitwriter.ml
@@ -0,0 +1,16 @@
+(* RUN: %ocamlc llvm.cma llvm_bitwriter.cma %s -o %t
+ * RUN: ./%t %t.bc
+ * RUN: llvm-dis < %t.bc | grep caml_int_ty
+ *)
+
+(* Note that this takes a moment to link, so it's best to keep the number of
+   individual tests low. *)
+
+let test x = if not x then exit 1 else ()
+
+let _ =
+  let m = Llvm.create_module "ocaml_test_module" in
+  
+  ignore (Llvm.add_type_name "caml_int_ty" Llvm.i32_type m);
+  
+  test (Llvm_bitwriter.write_bitcode_file m Sys.argv.(1))
diff --git a/test/Bindings/Ocaml/ocaml.exp b/test/Bindings/Ocaml/ocaml.exp
new file mode 100644
index 0000000000..5f8469536a
--- /dev/null
+++ b/test/Bindings/Ocaml/ocaml.exp
@@ -0,0 +1,3 @@
+load_lib llvm.exp
+
+RunLLVMTests [lsort [glob -nocomplain $srcdir/$subdir/*.{ll,llx,c,cpp,tr,ml}]]
diff --git a/test/Bindings/Ocaml/vmcore.ml b/test/Bindings/Ocaml/vmcore.ml
new file mode 100644
index 0000000000..1fd0d19d42
--- /dev/null
+++ b/test/Bindings/Ocaml/vmcore.ml
@@ -0,0 +1,233 @@
+(* RUN: %ocamlc llvm.cma llvm_bitwriter.cma %s -o %t
+ * RUN: ./%t %t.bc
+ * RUN: llvm-dis < %t.bc > %t.ll
+ *)
+
+(* Note: It takes several seconds for ocamlc to link an executable with
+         libLLVMCore.a, so it's better to write a big test than a bunch of
+         little ones. *)
+
+open Llvm
+open Llvm_bitwriter
+
+
+(* Tiny unit test framework *)
+let exit_status = ref 0
+let case_num = ref 0
+
+let all_done () =
+  prerr_endline "";
+  exit !exit_status
+
+let group name =
+  prerr_endline "";
+  case_num := 0;
+  prerr_string ("  " ^ name ^ "... ")
+
+let insist cond =
+  incr case_num;
+  prerr_char ' ';
+  if not cond then begin
+     exit_status := 10;
+     prerr_char '!'
+  end;
+  prerr_int !case_num
+
+let suite name f =
+  prerr_endline (name ^ ":");
+  f ()
+
+
+(*===-- Fixture -----------------------------------------------------------===*)
+
+let filename = Sys.argv.(1)
+let m = create_module filename
+
+
+(*===-- Types -------------------------------------------------------------===*)
+
+let test_types () =
+  (* RUN: grep {Ty01.*void} < %t.ll
+   *)
+  group "void";
+  insist (add_type_name "Ty01" void_type m);
+  insist (Void_type == classify_type void_type);
+
+  (* RUN: grep {Ty02.*i1} < %t.ll
+   *)
+  group "i1";
+  insist (add_type_name "Ty02" i1_type m);
+  insist (Integer_type == classify_type i1_type);
+
+  (* RUN: grep {Ty03.*i32} < %t.ll
+   *)
+  group "i32";
+  insist (add_type_name "Ty03" i32_type m);
+
+  (* RUN: grep {Ty04.*i42} < %t.ll
+   *)
+  group "i42";
+  let ty = make_integer_type 42 in
+  insist (add_type_name "Ty04" ty m);
+
+  (* RUN: grep {Ty05.*float} < %t.ll
+   *)
+  group "float";
+  insist (add_type_name "Ty05" float_type m);
+  insist (Float_type == classify_type float_type);
+
+  (* RUN: grep {Ty06.*double} < %t.ll
+   *)
+  group "double";
+  insist (add_type_name "Ty06" double_type m);
+  insist (Double_type == classify_type double_type);
+
+  (* RUN: grep {Ty07.*i32.*i1, double} < %t.ll
+   *)
+  group "function";
+  let ty = make_function_type i32_type [| i1_type; double_type |] false in
+  insist (add_type_name "Ty07" ty m);
+  insist (Function_type = classify_type ty);
+  insist (not (is_var_arg ty));
+  insist (i32_type == return_type ty);
+  insist (double_type == (param_types ty).(1));
+  
+  (* RUN: grep {Ty08.*\.\.\.} < %t.ll
+   *)
+  group "vararg";
+  let ty = make_function_type void_type [| i32_type |] true in
+  insist (add_type_name "Ty08" ty m);
+  insist (is_var_arg ty);
+  
+  (* RUN: grep {Ty09.*\\\[7 x i8\\\]} < %t.ll
+   *)
+  group "array";
+  let ty = make_array_type i8_type 7 in
+  insist (add_type_name "Ty09" ty m);
+  insist (7 = array_length ty);
+  insist (i8_type == element_type ty);
+  insist (Array_type == classify_type ty);
+  
+  (* RUN: grep {Ty10.*float\*} < %t.ll
+   *)
+  group "pointer";
+  let ty = make_pointer_type float_type in
+  insist (add_type_name "Ty10" ty m);
+  insist (float_type == element_type ty);
+  insist (Pointer_type == classify_type ty);
+  
+  (* RUN: grep {Ty11.*\<4 x i16\>} < %t.ll
+   *)
+  group "vector";
+  let ty = make_vector_type i16_type 4 in
+  insist (add_type_name "Ty11" ty m);
+  insist (i16_type == element_type ty);
+  insist (4 = vector_size ty);
+  
+  (* RUN: grep {Ty12.*opaque} < %t.ll
+   *)
+  group "opaque";
+  let ty = make_opaque_type () in
+  insist (add_type_name "Ty12" ty m);
+  insist (ty == ty);
+  insist (ty <> make_opaque_type ())
+
+
+(*===-- Global Values -----------------------------------------------------===*)
+
+let test_global_values () =
+  let (++) x f = f x; x in
+  let zero32 = make_null i32_type in
+
+  (* RUN: grep {GVal01} < %t.ll
+   *)
+  group "naming";
+  let g = define_global "TEMPORARY" zero32 m in
+  prerr_endline "";
+  prerr_endline (value_name g);
+  insist ("TEMPORARY" = value_name g);
+  set_value_name "GVal01" g;
+  insist ("GVal01" = value_name g);
+
+  (* RUN: grep {GVal02.*linkonce} < %t.ll
+   *)
+  group "linkage";
+  let g = define_global "GVal02" zero32 m ++
+          set_linkage Link_once_linkage in
+  insist (Link_once_linkage = linkage g);
+
+  (* RUN: grep {GVal03.*Hanalei} < %t.ll
+   *)
+  group "section";
+  let g = define_global "GVal03" zero32 m ++
+          set_section "Hanalei" in
+  insist ("Hanalei" = section g);
+  
+  (* RUN: grep {GVal04.*hidden} < %t.ll
+   *)
+  group "visibility";
+  let g = define_global "GVal04" zero32 m ++
+          set_visibility Hidden_visibility in
+  insist (Hidden_visibility = visibility g);
+  
+  (* RUN: grep {GVal05.*align 128} < %t.ll
+   *)
+  group "alignment";
+  let g = define_global "GVal05" zero32 m ++
+          set_alignment 128 in
+  insist (128 = alignment g)
+
+
+(*===-- Global Variables --------------------------------------------------===*)
+
+let test_global_variables () =
+  let (++) x f = f x; x in
+  let fourty_two32 = make_int_constant i32_type 42 false in
+
+  (* RUN: grep {GVar01.*external} < %t.ll
+   *)
+  group "declarations";
+  let g = declare_global i32_type "GVar01" m in
+  insist (is_declaration g);
+  
+  (* RUN: grep {GVar02.*42} < %t.ll
+   * RUN: grep {GVar03.*42} < %t.ll
+   *)
+  group "definitions";
+  let g = define_global "GVar02" fourty_two32 m in
+  let g2 = declare_global i32_type "GVar03" m ++
+           set_initializer fourty_two32 in
+  insist (not (is_declaration g));
+  insist (not (is_declaration g2));
+  insist ((global_initializer g) == (global_initializer g2));
+
+  (* RUN: grep {GVar04.*thread_local} < %t.ll
+   *)
+  group "threadlocal";
+  let g = define_global "GVar04" fourty_two32 m ++
+          set_thread_local true in
+  insist (is_thread_local g);
+
+  (* RUN: grep -v {GVar05} < %t.ll
+   *)
+  let g = define_global "GVar05" fourty_two32 m in
+  delete_global g
+
+
+(*===-- Writer ------------------------------------------------------------===*)
+
+let test_writer () =
+  group "writer";
+  insist (write_bitcode_file m filename);
+  
+  dispose_module m
+
+
+(*===-- Driver ------------------------------------------------------------===*)
+
+let _ =
+  suite "types"            test_types;
+  suite "global values"    test_global_values;
+  suite "global variables" test_global_variables;
+  suite "writer"           test_writer;
+  all_done ()
diff --git a/test/lib/llvm.exp b/test/lib/llvm.exp
index 9a85a1c87a..921bcb5ddd 100644
--- a/test/lib/llvm.exp
+++ b/test/lib/llvm.exp
@@ -43,7 +43,7 @@ proc execOneLine { test PRS outcome lineno line } {
 # cases.
 proc substitute { line test tmpFile } {
   global srcroot objroot srcdir objdir subdir target_triplet prcontext 
-  global llvmgcc llvmgxx llvmgcc_version llvmgccmajvers 
+  global llvmgcc llvmgxx llvmgcc_version llvmgccmajvers ocamlc
   global gccpath gxxpath compile_c compile_cxx link shlibext llvmlibsdir
   set path [file join $srcdir $subdir]
 
@@ -64,6 +64,8 @@ proc substitute { line test tmpFile } {
   regsub -all {%link} $new_line "$link" new_line
   #replace %shlibext with shared library extension
   regsub -all {%shlibext} $new_line "$shlibext" new_line
+  #replace %ocamlc with ocaml compiler command
+  regsub -all {%ocamlc} $new_line "$ocamlc" new_line
   #replace %llvmlibsdir with configure library directory
   regsub -all {%llvmlibsdir} $new_line "$llvmlibsdir" new_line
   #replace %p with path to source,