Adding ocamldoc-style comments for the Ocaml bindings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44494 91177308-0d34-0410-b5e6-96231b3b80d8

6 files changed, 826 insertions, 56 deletions

diff --git a/bindings/ocaml/analysis/llvm_analysis.ml b/bindings/ocaml/analysis/llvm_analysis.ml
index a972aa0856..58f8a5b033 100644
--- a/bindings/ocaml/analysis/llvm_analysis.ml
+++ b/bindings/ocaml/analysis/llvm_analysis.ml
@@ -5,11 +5,6 @@
  * This file was developed by Gordon Henriksen and is distributed under the
  * University of Illinois Open Source License. See LICENSE.TXT for details.
  *
- *===----------------------------------------------------------------------===
- *
- * This interface provides an ocaml API for LLVM IR analyses, the classes in
- * the Analysis library.
- *
  *===----------------------------------------------------------------------===*)
 
 
diff --git a/bindings/ocaml/analysis/llvm_analysis.mli b/bindings/ocaml/analysis/llvm_analysis.mli
index 59ff6c661c..fdaffb7142 100644
--- a/bindings/ocaml/analysis/llvm_analysis.mli
+++ b/bindings/ocaml/analysis/llvm_analysis.mli
@@ -13,12 +13,24 @@
  *===----------------------------------------------------------------------===*)
 
 
+(** [verify_module m] returns [None] if the module [m] is valid, and
+    [Some reason] if it is invalid. [reason] is a string containing a
+    human-readable validation report. See [llvm::verifyModule]. **)
 external verify_module : Llvm.llmodule -> string option = "llvm_verify_module"
 
+(** [verify_function f] returns [None] if the function [f] is valid, and
+    [Some reason] if it is invalid. [reason] is a string containing a
+    human-readable validation report. See [llvm::verifyFunction]. **)
 external verify_function : Llvm.llvalue -> bool = "llvm_verify_function"
 
+(** [verify_module m] returns if the module [m] is valid, but prints a
+    validation report to [stderr] and aborts the program if it is invalid. See 
+    [llvm::verifyModule]. **)
 external assert_valid_module : Llvm.llmodule -> unit
                              = "llvm_assert_valid_module"
 
+(** [verify_function f] returns if the function [f] is valid, but prints a
+    validation report to [stderr] and aborts the program if it is invalid. See 
+    [llvm::verifyFunction]. **)
 external assert_valid_function : Llvm.llvalue -> unit
                                = "llvm_assert_valid_function"
diff --git a/bindings/ocaml/bitwriter/llvm_bitwriter.mli b/bindings/ocaml/bitwriter/llvm_bitwriter.mli
index 08e001bc91..76f4b4e719 100644
--- a/bindings/ocaml/bitwriter/llvm_bitwriter.mli
+++ b/bindings/ocaml/bitwriter/llvm_bitwriter.mli
@@ -13,6 +13,7 @@
  *===----------------------------------------------------------------------===*)
 
 
-(* Writes the bitcode for module the given path. Returns true if successful. *)
+(** [write_bitcode_file m path] writes the bitcode for module [m] to the file at
+    [path]. Returns [true] if successful, [false] otherwise. **)
 external write_bitcode_file : Llvm.llmodule -> string -> bool
                             = "llvm_write_bitcode_file"
diff --git a/bindings/ocaml/llvm/llvm.ml b/bindings/ocaml/llvm/llvm.ml
index e19228afac..a415b94594 100644
--- a/bindings/ocaml/llvm/llvm.ml
+++ b/bindings/ocaml/llvm/llvm.ml
@@ -5,21 +5,14 @@
  * This file was developed by Gordon Henriksen and is distributed under the
  * University of Illinois Open Source License. See LICENSE.TXT for details.
  *
- *===----------------------------------------------------------------------===
- *
- * This interface provides an ocaml API for the LLVM intermediate
- * representation, the classes in the VMCore library.
- *
  *===----------------------------------------------------------------------===*)
 
 
-(* These abstract types correlate directly to the LLVM VMCore classes. *)
 type llmodule
 type lltype
 type lltypehandle
 type llvalue
-type llbasicblock (* These are actually values, but
-                     benefit from type checking. *)
+type llbasicblock
 type llbuilder
 
 type type_kind =
@@ -93,19 +86,10 @@ type real_predicate =
 
 (*===-- Modules -----------------------------------------------------------===*)
 
-(* Creates a module with the supplied module ID. Modules are not garbage
-   collected; it is mandatory to call dispose_module to free memory. *)
 external create_module : string -> llmodule = "llvm_create_module"
-
-(* Disposes a module. All references to subordinate objects are invalidated;
-   referencing them will invoke undefined behavior. *)
 external dispose_module : llmodule -> unit = "llvm_dispose_module"
-
-(* Adds a named type to the module's symbol table. Returns true if successful.
-   If such a name already exists, then no entry is added and returns false. *)
 external define_type_name : string -> lltype -> llmodule -> bool
                           = "llvm_add_type_name"
-
 external delete_type_name : string -> llmodule -> unit
                           = "llvm_delete_type_name"
 
@@ -113,8 +97,6 @@ external delete_type_name : string -> llmodule -> unit
 (*===-- Types -------------------------------------------------------------===*)
 
 external classify_type : lltype -> type_kind = "llvm_classify_type"
-external refine_abstract_type : lltype -> lltype -> unit
-                              = "llvm_refine_abstract_type"
 
 (*--... Operations on integer types ........................................--*)
 external _i1_type : unit -> lltype = "llvm_i1_type"
@@ -146,7 +128,6 @@ let fp128_type = _fp128_type ()
 let ppc_fp128_type = _ppc_fp128_type ()
 
 (*--... Operations on function types .......................................--*)
-(* FIXME: handle parameter attributes *)
 external function_type : lltype -> lltype array -> lltype = "llvm_function_type"
 external var_arg_function_type : lltype -> lltype array -> lltype
                                = "llvm_var_arg_function_type"
@@ -280,6 +261,7 @@ external define_global : string -> llvalue -> llmodule -> llvalue
 external lookup_global : string -> llmodule -> llvalue option
                        = "llvm_lookup_global"
 external delete_global : llvalue -> unit = "llvm_delete_global"
+external has_initializer : llvalue -> bool = "llvm_has_initializer"
 external global_initializer : llvalue -> llvalue = "LLVMGetInitializer"
 external set_initializer : llvalue -> llvalue -> unit = "llvm_set_initializer"
 external remove_initializer : llvalue -> unit = "llvm_remove_initializer"
@@ -457,6 +439,7 @@ let concat2 sep arr =
   !s
 
 let rec string_of_lltype ty =
+  (* FIXME: stop infinite recursion! :) *)
   match classify_type ty with
     Integer_type -> "i" ^ string_of_int (integer_bitwidth ty)
   | Pointer_type -> (string_of_lltype (element_type ty)) ^ "*"
diff --git a/bindings/ocaml/llvm/llvm.mli b/bindings/ocaml/llvm/llvm.mli
index abb90f24c8..ac83e42809 100644
--- a/bindings/ocaml/llvm/llvm.mli
+++ b/bindings/ocaml/llvm/llvm.mli
@@ -14,14 +14,34 @@
 
 
 (* These abstract types correlate directly to the LLVM VMCore classes. *)
+
+(** The top-level container for all other LLVM Intermediate Representation (IR)
+    objects. See the [llvm::Module] class. **)
 type llmodule
-type lltype
+
+(** Each value in the LLVM IR has a type, an instance of [lltype]. See the
+    [llvm::Type] class. **)
+type lltype 
+
+(** When building recursive types using [refine_type], [lltype] values may
+    become invalid; use [lltypehandle] to resolve this problem. See the
+    [llvm::AbstractTypeHolder] class. **)
 type lltypehandle
+
+(** Any value in the LLVM IR. Functions, instructions, global variables,
+    constants, and much more are all [llvalues]. See the [llvm::Value] class.
+    This type covers a wide range of subclasses. **)
 type llvalue
-type llbasicblock (* These are actually values, but
-                     benefit from type checking. *)
+
+(** A basic block in LLVM IR. See the [llvm::BasicBlock] class. **)
+type llbasicblock
+
+(** Used to generate instructions in the LLVM IR. See the [llvm::LLVMBuilder]
+    class. **)
 type llbuilder
 
+(** The kind of an [lltype], the result of [classify_type ty]. See the 
+    [llvm::Type::TypeID] enumeration. **)
 type type_kind =
   Void_type
 | Float_type
@@ -34,10 +54,12 @@ type type_kind =
 | Function_type
 | Struct_type
 | Array_type
-| Pointer_type 
+| Pointer_type
 | Opaque_type
 | Vector_type
 
+(** The linkage of a global value, accessed with [linkage gv] and
+    [set_linkage l gv]. See [llvm::GlobalValue::LinkageTypes]. **)
 type linkage =
   External_linkage
 | Link_once_linkage
@@ -49,17 +71,29 @@ type linkage =
 | External_weak_linkage
 | Ghost_linkage
 
+(** The linker visibility of a global value, accessed with [visibility gv] and
+    [set_visibility v gv]. See [llvm::GlobalValue::VisibilityTypes]. **)
 type visibility =
   Default_visibility
 | Hidden_visibility
 | Protected_visibility
 
-val ccc : int
-val fastcc : int
-val coldcc : int
-val x86_stdcallcc : int
-val x86_fastcallcc : int
+(* The following calling convention values may be accessed with
+   [function_call_conv f] and [set_function_call_conv conv f]. Calling
+   conventions are open-ended. *)
+val ccc : int             (** [ccc] is the C calling convention. **)
+val fastcc : int          (** [fastcc] is the calling convention to allow LLVM
+                              maximum optimization opportunities. Use only with
+                              internal linkage. **)
+val coldcc : int          (** [coldcc] is the calling convention for
+                              callee-save. **)
+val x86_stdcallcc : int   (** [x86_stdcallcc] is the familiar stdcall calling
+                              convention from C. **)
+val x86_fastcallcc : int  (** [x86_fastcallcc] is the familiar fastcall calling
+                              convention from C. **)
 
+(** The predicate for an integer comparison ([icmp]) instruction.
+    See the [llvm::ICmpInst::Predicate] enumeration. **)
 type int_predicate =
   Icmp_eq
 | Icmp_ne
@@ -72,6 +106,8 @@ type int_predicate =
 | Icmp_slt
 | Icmp_sle
 
+(** The predicate for a floating-point comparison ([fcmp]) instruction.
+    See the [llvm::FCmpInst::Predicate] enumeration. **)
 type real_predicate =
   Fcmp_false
 | Fcmp_oeq
@@ -93,332 +129,1082 @@ type real_predicate =
 
 (*===-- Modules -----------------------------------------------------------===*)
 
-(* Creates a module with the supplied module ID. Modules are not garbage
-   collected; it is mandatory to call dispose_module to free memory. *)
+(** [create_module id] creates a module with the supplied module ID. Modules are
+    not garbage collected; it is mandatory to call [dispose_module m] to free
+    memory. See the constructor [llvm::Module::Module]. *)
 external create_module : string -> llmodule = "llvm_create_module"
 
-(* Disposes a module. All references to subordinate objects are invalidated;
-   referencing them will invoke undefined behavior. *)
+(** [dispose_module m] destroys a module [m] and all of the IR objects it
+    contained. All references to subordinate objects are invalidated;
+    referencing them will invoke undefined behavior. See the destructor
+    [llvm::Module::~Module]. **)
 external dispose_module : llmodule -> unit = "llvm_dispose_module"
 
-(* Adds a named type to the module's symbol table. Returns true if successful.
-   If such a name already exists, then no entry is added and returns false. *)
+(** [define_type_name name ty m] adds a named type to the module's symbol table.
+    Returns [true] if successful. If such a name already exists, then no entry
+    is added and [false] is returned. See the [llvm::Module::addTypeName]
+    method. **)
 external define_type_name : string -> lltype -> llmodule -> bool
                           = "llvm_add_type_name"
 
+(** [delete_type_name name] removes a type name from the module's symbol
+    table. *)
 external delete_type_name : string -> llmodule -> unit
                           = "llvm_delete_type_name"
 
 
 (*===-- Types -------------------------------------------------------------===*)
+
+(** [classify_type ty] returns the [type_kind] corresponding to the type [ty].
+    See the method [llvm::Type::getTypeID]. **)
 external classify_type : lltype -> type_kind = "llvm_classify_type"
-external refine_abstract_type : lltype -> lltype -> unit
-                              = "llvm_refine_abstract_type"
+
+(** [string_of_lltype ty] returns a string describing the type [ty]. **)
 val string_of_lltype : lltype -> string
 
 (*--... Operations on integer types ........................................--*)
-val i1_type : lltype
-val i8_type : lltype
+
+(** The 1-bit integer type. See [llvm::Type::Int1Ty]. **)
+val i1_type : lltype 
+
+(** The 8-bit integer type. See [llvm::Type::Int8Ty]. **)
+val i8_type : lltype 
+
+(** The 16-bit integer type. See [llvm::Type::Int16Ty]. **)
 val i16_type : lltype
+
+(** The 32-bit integer type. See [llvm::Type::Int32Ty]. **)
 val i32_type : lltype
+
+(** The 64-bit integer type. See [llvm::Type::Int64Ty]. **)
 val i64_type : lltype
+
+(** [integer_type n] returns an integer type of bitwidth [n].
+    See the method [llvm::IntegerType::get]. **)
 external integer_type : int -> lltype = "llvm_integer_type"
+
+(** [integer_bitwidth ty] returns the number of bits in the integer type [ty]..
+    See the method [llvm::IntegerType::getBitWidth]. **)
 external integer_bitwidth : lltype -> int = "llvm_integer_bitwidth"
 
 (*--... Operations on real types ...........................................--*)
+
+(** The IEEE 32-bit floating point type. See [llvm::Type::FloatTy]. **)
 val float_type : lltype
+
+(** The IEEE 64-bit floating point type. See [llvm::Type::DoubleTy]. **)
 val double_type : lltype
+
+(** The x87 80-bit floating point type. See [llvm::Type::X86_FP80Ty]. **)
 val x86fp80_type : lltype
+
+(** The IEEE 128-bit floating point type. See [llvm::Type::FP128Ty]. **)
 val fp128_type : lltype
+
+(** The PowerPC 128-bit floating point type. See [llvm::Type::PPC_FP128Ty]. **)
 val ppc_fp128_type : lltype
 
 (*--... Operations on function types .......................................--*)
-(* FIXME: handle parameter attributes                                         *)
+
+(** [function_type ret_ty param_tys] returns the function type returning
+    [ret_ty] and taking [param_tys] as parameters.
+    See the method [llvm::FunctionType::get]. **)
 external function_type : lltype -> lltype array -> lltype = "llvm_function_type"
+
+(** [va_arg_function_type ret_ty param_tys] is just like
+    [function_type ret_ty param_tys] except that it returns the function type
+    which also takes a variable number of arguments.
+    See the method [llvm::FunctionType::get]. **)
 external var_arg_function_type : lltype -> lltype array -> lltype
                                = "llvm_var_arg_function_type"
+
+(** [is_var_arg fty] returns [true] if [fty] is a varargs function type, [false]
+    otherwise. See the method [llvm::FunctionType::isVarArg]. **)
 external is_var_arg : lltype -> bool = "llvm_is_var_arg"
+
+(** [return_type fty] gets the return type of the function type [fty].
+    See the method [llvm::FunctionType::getReturnType]. **)
 external return_type : lltype -> lltype = "LLVMGetReturnType"
+
+(** [param_types fty] gets the parameter types of the function type [fty].
+    See the method [llvm::FunctionType::getParamType]. **)
 external param_types : lltype -> lltype array = "llvm_param_types"
 
 (*--... Operations on struct types .........................................--*)
+
+(** [struct_type tys] returns the structure type containing in the types in the
+    array [tys]. See the method [llvm::StructType::get]. **)
 external struct_type : lltype array -> lltype = "llvm_struct_type"
+
+(** [struct_type tys] returns the packed structure type containing in the types
+    in the array [tys]. See the method [llvm::StructType::get]. **)
 external packed_struct_type : lltype array -> lltype = "llvm_packed_struct_type"
+
+(** [element_types sty] returns the constituent types of the struct type [sty].
+    See the method [llvm::StructType::getElementType]. **)
 external element_types : lltype -> lltype array = "llvm_element_types"
+
+(** [is_packed sty] returns [true] if the structure type [sty] is packed,
+    [false] otherwise. See the method [llvm::StructType::isPacked]. **)
 external is_packed : lltype -> bool = "llvm_is_packed"
 
 (*--... Operations on pointer, vector, and array types .....................--*)
+
+(** [array_type ty n] returns the array type containing [n] elements of type
+    [ty]. See the method [llvm::ArrayType::get]. **)
 external array_type : lltype -> int -> lltype = "llvm_array_type"
+
+(** [pointer_type ty] returns the pointer type referencing objects of type
+    [ty]. See the method [llvm::PointerType::get]. **)
 external pointer_type : lltype -> lltype = "LLVMPointerType"
+
+(** [vector_type ty n] returns the array type containing [n] elements of the
+    primitive type [ty]. See the method [llvm::ArrayType::get]. **)
 external vector_type : lltype -> int -> lltype = "llvm_vector_type"
 
+(** [element_type ty] returns the element type of the pointer, vector, or array
+    type [ty]. See the method [llvm::SequentialType::get]. **)
 external element_type : lltype -> lltype = "LLVMGetElementType"
+
+(** [element_type aty] returns the element count of the array type [aty].
+    See the method [llvm::ArrayType::getNumElements]. **)
 external array_length : lltype -> int = "llvm_array_length"
+
+(** [element_type ty] returns the element count of the vector type [ty].
+    See the method [llvm::VectorType::getNumElements]. **)
 external vector_size : lltype -> int = "llvm_vector_size"
 
 (*--... Operations on other types ..........................................--*)
+
+(** [opaque_type ()] creates a new opaque type distinct from any other.
+    Opaque types are useful for building recursive types in combination with
+    [refine_type opaque_ty ty].
+    See [llvm::OpaqueType::get]. **)
 external opaque_type : unit -> lltype = "llvm_opaque_type"
+
+(** [void_type] is the type of a function which does not return any value.
+    See [llvm::Type::VoidTy]. **)
 val void_type : lltype
+
+(** [label_type] is the type of a basic block. See [llvm::Type::LabelTy]. **)
 val label_type : lltype
 
 (*--... Operations on type handles .........................................--*)
+
+(** [handle_to_type ty] creates a handle to the type [ty]. If [ty] is later
+    refined as a result of a call to [refine_type], the handle will be updated;
+    any bare [lltype] references will become invalid.
+    See the class [llvm::PATypeHolder]. **)
 external handle_to_type : lltype -> lltypehandle = "llvm_handle_to_type"
+
+(** [type_of_handle tyh] resolves the type handle [tyh].
+    See the method [llvm::PATypeHolder::get()]. **)
 external type_of_handle : lltypehandle -> lltype = "llvm_type_of_handle"
+
+(** [refine_type opaque_ty ty] replaces the abstract type [opaque_ty] with the
+    concrete type [ty] in all users. Warning: This may invalidate [lltype]
+    values! Use [lltypehandle] to manipulate potentially abstract types. See the
+    method [llvm::Type::refineAbstractType]. **)
 external refine_type : lltype -> lltype -> unit = "llvm_refine_type"
 
 
 (*===-- Values ------------------------------------------------------------===*)
+
+(** [type_of v] returns the type of the value [v].
+    See the method [llvm::Value::getType]. **)
 external type_of : llvalue -> lltype = "llvm_type_of"
+
+(** [value_name v] returns the name of the value [v]. For global values, this is
+    the symbol name. For instructions and basic blocks, it is the SSA register
+    name. It is meaningless for constants.
+    See the method [llvm::Value::getName]. **)
 external value_name : llvalue -> string = "llvm_value_name"
+
+(** [set_value_name n v] sets the name of the value [v] to [n]. See the method 
+    [llvm::Value::setName]. **)
 external set_value_name : string -> llvalue -> unit = "llvm_set_value_name"
+
+(** [dump_value v] prints the .ll representation of the value [v] to standard
+    error. See the method [llvm::Value::dump]. **)
 external dump_value : llvalue -> unit = "llvm_dump_value"
 
 (*--... Operations on constants of (mostly) any type .......................--*)
+
+(** [is_constant v] returns [true] if the value [v] is a constant, [false]
+    otherwise. Similar to [llvm::isa<Constant>]. **)
 external is_constant : llvalue -> bool = "llvm_is_constant"
+
+(** [const_null ty] returns the constant null (zero) of the type [ty].
+    See the method [llvm::Constant::getNullValue]. **)
 external const_null : lltype -> llvalue = "LLVMConstNull"
+
+(** [const_all_ones ty] returns the constant '-1' of the integer or vector type
+    [ty]. See the method [llvm::Constant::getAllOnesValue]. **)
 external const_all_ones : (*int|vec*)lltype -> llvalue = "LLVMConstAllOnes"
+
+(** [undef ty] returns the undefined value of the type [ty].
+    See the method [llvm::UndefValue::get]. **)
 external undef : lltype -> llvalue = "LLVMGetUndef"
+
+(** [is_null v] returns [true] if the value [v] is the null (zero) value.
+    See the method [llvm::Constant::isNullValue]. **)
 external is_null : llvalue -> bool = "llvm_is_null"
+
+(** [is_undef v] returns [true] if the value [v] is an undefined value, [false]
+    otherwise. Similar to [llvm::isa<UndefValue>]. **)
 external is_undef : llvalue -> bool = "llvm_is_undef"
 
 (*--... Operations on scalar constants .....................................--*)
+
+(** [const_int ty i] returns the integer constant of type [ty] and value [i].
+    See the method [llvm::ConstantInt::get]. **)
 external const_int : lltype -> int -> llvalue = "llvm_const_int"
+
+(** [const_of_int64 ty i] returns the integer constant of type [ty] and value
+    [i]. See the method [llvm::ConstantInt::get]. **)
 external const_of_int64 : lltype -> Int64.t -> bool -> llvalue
                         = "llvm_const_of_int64"
+
+(** [const_float ty n] returns the floating point constant of type [ty] and
+    value [n]. See the method [llvm::ConstantInt::get]. **)
 external const_float : lltype -> float -> llvalue = "llvm_const_float"
 
 (*--... Operations on composite constants ..................................--*)
+
+(** [const_string s] returns the constant [i8] array with the values of the
+    characters in the string [s]. The array is not null-terminated (but see
+    [const_stringz]). This value can in turn be used as the initializer for a
+    global variable. See the method [llvm::ConstantArray::get]. **)
 external const_string : string -> llvalue = "llvm_const_string"
+
+(** [const_stringz s] returns the constant [i8] array with the values of the
+    characters in the string [s] and a null terminator. This value can in turn
+    be used as the initializer for a global variable.
+    See the method [llvm::ConstantArray::get]. **)
 external const_stringz : string -> llvalue = "llvm_const_stringz"
+
+(** [const_array ty elts] returns the constant array of type
+    [array_type ty (Array.length elts)] and containing the values [elts].
+    This value can in turn be used as the initializer for a global variable.
+    See the method [llvm::ConstantArray::get]. **)
 external const_array : lltype -> llvalue array -> llvalue = "llvm_const_array"
+
+(** [const_struct elts] returns the structured constant of type
+    [struct_type (Array.map type_of elts)] and containing the values [elts].
+    This value can in turn be used as the initializer for a global variable.
+    See the method [llvm::ConstantStruct::get]. **)
 external const_struct : llvalue array -> llvalue = "llvm_const_struct"
+
+(** [const_packed_struct elts] returns the structured constant of type
+    [packed_struct_type (Array.map type_of elts)] and containing the values
+    [elts]. This value can in turn be used as the initializer for a global
+    variable. See the method [llvm::ConstantStruct::get]. **)
 external const_packed_struct : llvalue array -> llvalue
                              = "llvm_const_packed_struct"
+
+(** [const_vector elts] returns the vector constant of type
+    [vector_type (type_of elts.(0)) (Array.length elts)] and containing the
+    values [elts]. See the method [llvm::ConstantVector::get]. **)
 external const_vector : llvalue array -> llvalue = "llvm_const_vector"
 
 (*--... Constant expressions ...............................................--*)
+
+(** [size_of ty] returns the sizeof constant for the type [ty]. This is
+    equivalent to [const_ptrtoint (const_gep (const_null (pointer_type ty))
+    (const_int i64_type 1)) i64_type], but considerably more readable.
+    See the method [llvm::ConstantExpr::getSizeOf]. **)
 external size_of : lltype -> llvalue = "LLVMSizeOf"
+
+(** [const_neg c] returns the arithmetic negation of the constant [c].
+    See the method [llvm::ConstantExpr::getNeg]. **)
 external const_neg : llvalue -> llvalue = "LLVMConstNeg"
+
+(** [const_not c] returns the bitwise inverse of the constant [c].
+    See the method [llvm::ConstantExpr::getNot]. **)
 external const_not : llvalue -> llvalue = "LLVMConstNot"
+
+(** [const_add c1 c2] returns the constant sum of two constants.
+    See the method [llvm::ConstantExpr::getAdd]. **)
 external const_add : llvalue -> llvalue -> llvalue = "LLVMConstAdd"
+
+(** [const_sub c1 c2] returns the constant difference, [c1 - c2], of two
+    constants. See the method [llvm::ConstantExpr::getSub]. **)
 external const_sub : llvalue -> llvalue -> llvalue = "LLVMConstSub"
+
+(** [const_mul c1 c2] returns the constant product of two constants.
+    See the method [llvm::ConstantExpr::getMul]. **)
 external const_mul : llvalue -> llvalue -> llvalue = "LLVMConstMul"
+
+(** [const_udiv c1 c2] returns the constant quotient [c1 / c2] of two unsigned
+    integer constants.
+    See the method [llvm::ConstantExpr::getUDiv]. **)
 external const_udiv : llvalue -> llvalue -> llvalue = "LLVMConstUDiv"
+
+(** [const_sdiv c1 c2] returns the constant quotient [c1 / c2] of two signed
+    integer constants.
+    See the method [llvm::ConstantExpr::]. **)
 external const_sdiv : llvalue -> llvalue -> llvalue = "LLVMConstSDiv"
+
+(** [const_fdiv c1 c2] returns the constant quotient [c1 / c2] of two floating
+    point constants.
+    See the method [llvm::ConstantExpr::getFDiv]. **)
 external const_fdiv : llvalue -> llvalue -> llvalue = "LLVMConstFDiv"
+
+(** [const_udiv c1 c2] returns the constant remainder [c1 MOD c2] of two
+    unsigned integer constants.
+    See the method [llvm::ConstantExpr::getURem]. **)
 external const_urem : llvalue -> llvalue -> llvalue = "LLVMConstURem"
+
+(** [const_sdiv c1 c2] returns the constant remainder [c1 MOD c2] of two
+    signed integer constants.
+    See the method [llvm::ConstantExpr::getSRem]. **)
 external const_srem : llvalue -> llvalue -> llvalue = "LLVMConstSRem"
+
+(** [const_frem c1 c2] returns the constant remainder [c1 MOD c2] of two
+    signed floating point constants.
+    See the method [llvm::ConstantExpr::getFRem]. **)
 external const_frem : llvalue -> llvalue -> llvalue = "LLVMConstFRem"
+
+(** [const_and c1 c2] returns the constant bitwise [AND] of two integer
+    constants.
+    See the method [llvm::ConstantExpr::getAnd]. **)
 external const_and : llvalue -> llvalue -> llvalue = "LLVMConstAnd"
+
+(** [const_or c1 c2] returns the constant bitwise [OR] of two integer
+    constants.
+    See the method [llvm::ConstantExpr::getOr]. **)
 external const_or : llvalue -> llvalue -> llvalue = "LLVMConstOr"
+
+(** [const_xor c1 c2] returns the constant bitwise [XOR] of two integer
+    constants.
+    See the method [llvm::ConstantExpr::getXor]. **)
 external const_xor : llvalue -> llvalue -> llvalue = "LLVMConstXor"
+
+(** [const_icmp pred c1 c2] returns the constant comparison of two integer
+    constants, [c1 pred c2].
+    See the method [llvm::ConstantExpr::getICmp]. **)
 external const_icmp : int_predicate -> llvalue -> llvalue -> llvalue
                     = "llvm_const_icmp"
+
+(** [const_fcmp pred c1 c2] returns the constant comparison of two floating
+    point constants, [c1 pred c2].
+    See the method [llvm::ConstantExpr::getFCmp]. **)
 external const_fcmp : real_predicate -> llvalue -> llvalue -> llvalue
                     = "llvm_const_fcmp"
+
+(** [const_shl c1 c2] returns the constant integer [c1] left-shifted by the
+    constant integer [c2].
+    See the method [llvm::ConstantExpr::getShl]. **)
 external const_shl : llvalue -> llvalue -> llvalue = "LLVMConstShl"
+
+(** [const_lshr c1 c2] returns the constant integer [c1] right-shifted by the
+    constant integer [c2] with zero extension.
+    See the method [llvm::ConstantExpr::getLShr]. **)
 external const_lshr : llvalue -> llvalue -> llvalue = "LLVMConstLShr"
+
+(** [const_ashr c1 c2] returns the constant integer [c1] right-shifted by the
+    constant integer [c2] with sign extension.
+    See the method [llvm::ConstantExpr::getAShr]. **)
 external const_ashr : llvalue -> llvalue -> llvalue = "LLVMConstAShr"
+
+(** [const_gep pc indices] returns the constant [getElementPtr] of [p1] with the
+    constant integers indices from the array [indices].
+    See the method [llvm::ConstantExpr::getGetElementPtr]. **)
 external const_gep : llvalue -> llvalue array -> llvalue = "llvm_const_gep"
+
+(** [const_trunc c ty] returns the constant truncation of integer constant [c]
+    to the smaller integer type [ty].
+    See the method [llvm::ConstantExpr::getTrunc]. **)
 external const_trunc : llvalue -> lltype -> llvalue = "LLVMConstTrunc"
+
+(** [const_sext c ty] returns the constant sign extension of integer constant
+    [c] to the larger integer type [ty].
+    See the method [llvm::ConstantExpr::getSExt]. **)
 external const_sext : llvalue -> lltype -> llvalue = "LLVMConstSExt"
+
+(** [const_zext c ty] returns the constant zero extension of integer constant
+    [c] to the larger integer type [ty].
+    See the method [llvm::ConstantExpr::getZExt]. **)
 external const_zext : llvalue -> lltype -> llvalue = "LLVMConstZExt"
+
+(** [const_fptrunc c ty] returns the constant truncation of floating point
+    constant [c] to the smaller floating point type [ty].
+    See the method [llvm::ConstantExpr::getFPTrunc]. **)
 external const_fptrunc : llvalue -> lltype -> llvalue = "LLVMConstFPTrunc"
+
+(** [const_fpext c ty] returns the constant extension of floating point constant
+    [c] to the larger floating point type [ty].
+    See the method [llvm::ConstantExpr::getFPExt]. **)
 external const_fpext : llvalue -> lltype -> llvalue = "LLVMConstFPExt"
+
+(** [const_uitofp c ty] returns the constant floating point conversion of
+    unsigned integer constant [c] to the floating point type [ty].
+    See the method [llvm::ConstantExpr::getUIToFP]. **)
 external const_uitofp : llvalue -> lltype -> llvalue = "LLVMConstUIToFP"
+
+(** [const_sitofp c ty] returns the constant floating point conversion of
+    signed integer constant [c] to the floating point type [ty].
+    See the method [llvm::ConstantExpr::getSIToFP]. **)
 external const_sitofp : llvalue -> lltype -> llvalue = "LLVMConstSIToFP"
+
+(** [const_fptoui c ty] returns the constant unsigned integer conversion of
+    floating point constant [c] to integer type [ty].
+    See the method [llvm::ConstantExpr::getFPToUI]. **)
 external const_fptoui : llvalue -> lltype -> llvalue = "LLVMConstFPToUI"
+
+(** [const_fptoui c ty] returns the constant unsigned integer conversion of
+    floating point constant [c] to integer type [ty].
+    See the method [llvm::ConstantExpr::getFPToSI]. **)
 external const_fptosi : llvalue -> lltype -> llvalue = "LLVMConstFPToSI"
+
+(** [const_ptrtoint c ty] returns the constant integer conversion of
+    pointer constant [c] to integer type [ty].
+    See the method [llvm::ConstantExpr::getPtrToInt]. **)
 external const_ptrtoint : llvalue -> lltype -> llvalue = "LLVMConstPtrToInt"
+
+(** [const_inttoptr c ty] returns the constant pointer conversion of
+    integer constant [c] to pointer type [ty].
+    See the method [llvm::ConstantExpr::getIntToPtr]. **)
 external const_inttoptr : llvalue -> lltype -> llvalue = "LLVMConstIntToPtr"
+
+(** [const_bitcast c ty] returns the constant bitwise conversion of constant [c]
+    to type [ty] of equal size.
+    See the method [llvm::ConstantExpr::getBitCast]. **)
 external const_bitcast : llvalue -> lltype -> llvalue = "LLVMConstBitCast"
+
+(** [const_select cond t f] returns the constant conditional which returns value
+    [t] if the boolean constant [cond] is true and the value [f] otherwise.
+    See the method [llvm::ConstantExpr::getSelect]. **)
 external const_select : llvalue -> llvalue -> llvalue -> llvalue
                       = "LLVMConstSelect"
+
+(** [const_extractelement vec i] returns the constant [i]th element of
+    constant vector [vec]. [i] must be a constant [i32] value unsigned less than
+    the size of the vector.
+    See the method [llvm::ConstantExpr::getExtractElement]. **)
 external const_extractelement : llvalue -> llvalue -> llvalue
                               = "LLVMConstExtractElement"
+
+(** [const_insertelement vec v i] returns the constant vector with the same
+    elements as constant vector [v] but the [i]th element replaced by the
+    constant [v]. [v] must be a constant value with the type of the vector
+    elements. [i] must be a constant [i32] value unsigned less than the size
+    of the vector.
+    See the method [llvm::ConstantExpr::getInsertElement]. **)
 external const_insertelement : llvalue -> llvalue -> llvalue -> llvalue
                              = "LLVMConstInsertElement"
+
+(** [const_shufflevector a b mask] returns a constant [shufflevector].
+    See the LLVM Language Reference for details on the [sufflevector]
+    instruction.
+    See the method [llvm::ConstantExpr::getShuffleVector]. **)
 external const_shufflevector : llvalue -> llvalue -> llvalue -> llvalue
                              = "LLVMConstShuffleVector"
 
 (*--... Operations on global variables, functions, and aliases (globals) ...--*)
+
+(** [is_declaration g] returns [true] if the global value [g] is a declaration
+    only. Returns [false] otherwise.
+    See the method [llvm::GlobalValue::isDeclaration]. **)
 external is_declaration : llvalue -> bool = "llvm_is_declaration"
+
+(** [linkage g] returns the linkage of the global value [g].
+    See the method [llvm::GlobalValue::getLinkage]. **)
 external linkage : llvalue -> linkage = "llvm_linkage"
+
+(** [set_linkage l g] sets the linkage of the global value [g] to [l].
+    See the method [llvm::GlobalValue::setLinkage]. **)
 external set_linkage : linkage -> llvalue -> unit = "llvm_set_linkage"
+
+(** [section g] returns the linker section of the global value [g].
+    See the method [llvm::GlobalValue::getSection]. **)
 external section : llvalue -> string = "llvm_section"
+
+(** [set_section s g] sets the linker section of the global value [g] to [s].
+    See the method [llvm::GlobalValue::setSection]. **)
 external set_section : string -> llvalue -> unit = "llvm_set_section"
+
+(** [visibility g] returns the linker visibility of the global value [g].
+    See the method [llvm::GlobalValue::getVisibility]. **)
 external visibility : llvalue -> visibility = "llvm_visibility"
+
+(** [set_visibility v g] sets the linker visibility of the global value [g] to
+    [v]. See the method [llvm::GlobalValue::setVisibility]. **)
 external set_visibility : visibility -> llvalue -> unit = "llvm_set_visibility"
+
+(** [alignment g] returns the required alignment of the global value [g].
+    See the method [llvm::GlobalValue::getAlignment]. **)
 external alignment : llvalue -> int = "llvm_alignment"
+
+(** [set_alignment n g] sets the required alignment of the global value [g] to
+    [n] bytes. See the method [llvm::GlobalValue::setAlignment]. **)
 external set_alignment : int -> llvalue -> unit = "llvm_set_alignment"
-external is_global_constant : llvalue -> bool = "llvm_is_global_constant"
-external set_global_constant : bool -> llvalue -> unit
-                             = "llvm_set_global_constant"
 
 (*--... Operations on global variables .....................................--*)
+
+(** [declare_global ty name m] returns a new global variable of type [ty] and
+    with name [name] in module [m]. If such a global variable already exists,
+    it is returned. If the type of the existing global differs, then a bitcast
+    to [ty] is returned. **)
 external declare_global : lltype -> string -> llmodule -> llvalue
                         = "llvm_declare_global"
+
+(** [define_global name init m] returns a new global with name [name] and
+    initializer [init] in module [m]. If the named global already exists, it is
+    renamed.
+    See the constructor of [llvm::GlobalVariable]. **)
 external define_global : string -> llvalue -> llmodule -> llvalue
                        = "llvm_define_global"
+
+(** [lookup_global name m] returns [Some g] if a global variable with name
+    [name] exists in module [m]. If no such global exists, returns [None].
+    See the [llvm::GlobalVariable] constructor. **)
 external lookup_global : string -> llmodule -> llvalue option
                        = "llvm_lookup_global"
+
+(** [delete_global gv] destroys the global variable [gv].
+    See the method [llvm::GlobalVariable::eraseFromParent]. **)
 external delete_global : llvalue -> unit = "llvm_delete_global"
+
+(** [is_global_constant gv] returns [true] if the global variabile [gv] is a
+    constant. Returns [false] otherwise.
+    See the method [llvm::GlobalVariable::isConstant]. **)
+external is_global_constant : llvalue -> bool = "llvm_is_global_constant"
+
+(** [set_global_constant c gv] sets the global variable [gv] to be a constant if
+    [c] is [true] and not if [c] is [false].
+    See the method [llvm::GlobalVariable::setConstant]. **)
+external set_global_constant : bool -> llvalue -> unit
+                             = "llvm_set_global_constant"
+
+(** [has_initializer gv] returns [true] if the global variable [gv] has an
+    initializer and [false] otherwise.
+    See the method [llvm::GlobalVariable::hasInitializer]. **)
+external has_initializer : llvalue -> bool = "llvm_has_initializer"
+
+(** [global_initializer gv] returns the initializer for the global variable
+    [gv]. See the method [llvm::GlobalVariable::getInitializer]. **)
 external global_initializer : llvalue -> llvalue = "LLVMGetInitializer"
+
+(** [set_initializer c gv] sets the initializer for the global variable
+    [gv] to the constant [c].
+    See the method [llvm::GlobalVariable::setInitializer]. **)
 external set_initializer : llvalue -> llvalue -> unit = "llvm_set_initializer"
+
+(** [remove_initializer gv] unsets the initializer for the global variable
+    [gv].
+    See the method [llvm::GlobalVariable::setInitializer]. **)
 external remove_initializer : llvalue -> unit = "llvm_remove_initializer"
+
+(** [is_thread_local gv] returns [true] if the global variable [gv] is
+    thread-local and [false] otherwise.
+    See the method [llvm::GlobalVariable::isThreadLocal]. **)
 external is_thread_local : llvalue -> bool = "llvm_is_thread_local"
+
+(** [set_thread_local c gv] sets the global variable [gv] to be thread local if
+    [c] is [true] and not otherwise.
+    See the method [llvm::GlobalVariable::setThreadLocal]. **)
 external set_thread_local : bool -> llvalue -> unit = "llvm_set_thread_local"
 
 (*--... Operations on functions ............................................--*)
+
+(** [declare_function name ty m] returns a new function of type [ty] and
+    with name [name] in module [m]. If such a function already exists,
+    it is returned. If the type of the existing function differs, then a bitcast
+    to [ty] is returned. **)
 external declare_function : string -> lltype -> llmodule -> llvalue
                           = "llvm_declare_function"
+
+(** [define_function name ty m] creates a new function with name [name] and
+    type [ty] in module [m]. If the named function already exists, it is
+    renamed. An entry basic block is created in the function.
+    See the constructor of [llvm::GlobalVariable]. **)
 external define_function : string -> lltype -> llmodule -> llvalue
                          = "llvm_define_function"
+
+(** [lookup_function name m] returns [Some f] if a function with name
+    [name] exists in module [m]. If no such function exists, returns [None].
+    See the method [llvm::Module] constructor. **)
 external lookup_function : string -> llmodule -> llvalue option
                          = "llvm_lookup_function"
+
+(** [delete_function f] destroys the function [f].
+    See the method [llvm::Function::eraseFromParent]. **)
 external delete_function : llvalue -> unit = "llvm_delete_function"
+
+(** [params f] returns the parameters of function [f].
+    See the method [llvm::Function::getArgumentList]. **)
 external params : llvalue -> llvalue array = "llvm_params"
+
+(** [param f n] returns the [n]th parameter of function [f].
+    See the method [llvm::Function::getArgumentList]. **)
 external param : llvalue -> int -> llvalue = "llvm_param"
+
+(** [is_intrinsic f] returns true if the function [f] is an intrinsic.
+    See the method [llvm::Function::isIntrinsic]. **)
 external is_intrinsic : llvalue -> bool = "llvm_is_intrinsic"
+
+(** [function_call_conv f] returns the calling convention of the function [f].
+    See the method [llvm::Function::getCallingConv]. **)
 external function_call_conv : llvalue -> int = "llvm_function_call_conv"
+
+(** [set_function_call_conv cc f] sets the calling convention of the function
+    [f] to the calling convention numbered [cc].
+    See the method [llvm::Function::setCallingConv]. **)
 external set_function_call_conv : int -> llvalue -> unit
                                 = "llvm_set_function_call_conv"
 
 (*--... Operations on basic blocks .........................................--*)
+
+(** [basic_blocks fn] returns the basic blocks of the function [f].
+    See the method [llvm::Function::getBasicBlockList]. **)
 external basic_blocks : llvalue -> llbasicblock array = "llvm_basic_blocks"
+
+(** [entry_block fn] returns the entry basic block of the function [f].
+    See the method [llvm::Function::getEntryBlock]. **)
 external entry_block : llvalue -> llbasicblock = "LLVMGetEntryBasicBlock"
+
+(** [delete_block bb] deletes the basic block [bb].
+    See the method [llvm::BasicBlock::eraseFromParent]. **)
 external delete_block : llbasicblock -> unit = "llvm_delete_block"
+
+(** [append_block name f] creates a new basic block named [name] at the end of
+    function [f].
+    See the constructor of [llvm::BasicBlock]. **)
 external append_block : string -> llvalue -> llbasicblock = "llvm_append_block"
+
+(** [insert_block name bb] creates a new basic block named [name] before the
+    basic block [bb].
+    See the constructor of [llvm::BasicBlock]. **)
 external insert_block : string -> llbasicblock -> llbasicblock
                       = "llvm_insert_block"
+
+(** [value_of_block bb] losslessly casts [bb] to an [llvalue]. **)
 external value_of_block : llbasicblock -> llvalue = "LLVMBasicBlockAsValue"
+
+(** [value_is_block v] returns [true] if the value [v] is a basic block and
+    [false] otherwise.
+    Similar to [llvm::isa<BasicBlock>]. **)
 external value_is_block : llvalue -> bool = "llvm_value_is_block"
+
+(** [block_of_value v] losslessly casts [v] to an [llbasicblock]. **)
 external block_of_value : llvalue -> llbasicblock = "LLVMValueAsBasicBlock"
 
 (*--... Operations on phi nodes ............................................--*)
+
+(** [add_incoming (v, bb) pn] adds the value [v] to the phi node [pn] for use
+    with branches from [bb]. See the method [llvm::PHINode::addIncoming]. **)
 external add_incoming : (llvalue * llbasicblock) -> llvalue -> unit
                       = "llvm_add_incoming"
+
+(** [incoming pn] returns the list of value-block pairs for phi node [pn].
+    See the method [llvm::PHINode::getIncomingValue]. **)
 external incoming : llvalue -> (llvalue * llbasicblock) list = "llvm_incoming"
 
 
 (*===-- Instruction builders ----------------------------------------------===*)
+
+(** [builder_before ins] creates an instruction builder positioned before the
+    instruction [isn]. See the constructor for [llvm::LLVMBuilder]. **)
 external builder_before : llvalue -> llbuilder = "llvm_builder_before"
+
+(** [builder_at_end bb] creates an instruction builder positioned at the end of
+    the basic block [bb]. See the constructor for [llvm::LLVMBuilder]. **)
 external builder_at_end : llbasicblock -> llbuilder = "llvm_builder_at_end"
+
+(** [position_before ins b] moves the instruction builder [b] to before the
+    instruction [isn]. See the method [llvm::LLVMBuilder::SetInsertPoint]. **)
 external position_before : llvalue -> llbuilder -> unit = "llvm_position_before"
+
+(** [position_at_end bb b] moves the instruction builder [b] to the end of the
+    basic block [bb]. See the method [llvm::LLVMBuilder::SetInsertPoint]. **)
 external position_at_end : llbasicblock -> llbuilder -> unit
                          = "llvm_position_at_end"
 
 (*--... Terminators ........................................................--*)
+
+(** [build_ret_void b] creates a
+    [ret void]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateRetVoid]. **)
 external build_ret_void : llbuilder -> llvalue = "llvm_build_ret_void"
+
+(** [build_ret v b] creates a
+    [ret %v]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateRet]. **)
 external build_ret : llvalue -> llbuilder -> llvalue = "llvm_build_ret"
+
+(** [build_br bb b] creates a
+    [b %bb]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateBr]. **)
 external build_br : llbasicblock -> llbuilder -> llvalue = "llvm_build_br"
+
+(** [build_cond_br cond tbb fbb b] creates a
+    [b %cond, %tbb, %fbb]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateCondBr]. **)
 external build_cond_br : llvalue -> llbasicblock -> llbasicblock -> llbuilder ->
                          llvalue = "llvm_build_cond_br"
+
+(** [build_switch case elsebb b] creates an empty
+    [switch %case, %elsebb]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateSwitch]. **)
 external build_switch : llvalue -> llbasicblock -> int -> llbuilder -> llvalue
                       = "llvm_build_switch"
+
+(** [build_invoke fn args tobb unwindbb name b] creates an
+    [%name = invoke %fn(args) to %tobb unwind %unwindbb]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateInvoke]. **)
 external build_invoke : llvalue -> llvalue array -> llbasicblock ->
                         llbasicblock -> string -> llbuilder -> llvalue
                       = "llvm_build_invoke_bc" "llvm_build_invoke_nat"
+
+(** [build_unwind b] creates an
+    [unwind]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateUnwind]. **)
 external build_unwind : llbuilder -> llvalue = "llvm_build_unwind"
+
+(** [build_unreachable b] creates an
+    [unreachable]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateUnwind]. **)
 external build_unreachable : llbuilder -> llvalue = "llvm_build_unreachable"
 
 (*--... Arithmetic .........................................................--*)
+
+(** [build_add x y name b] creates a
+    [%name = add %x, %y]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateAdd]. **)
 external build_add : llvalue -> llvalue -> string -> llbuilder -> llvalue
                    = "llvm_build_add"
+
+(** [build_sub x y name b] creates a
+    [%name = sub %x, %y]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateSub]. **)
 external build_sub : llvalue -> llvalue -> string -> llbuilder -> llvalue
                    = "llvm_build_sub"
+
+(** [build_mul x y name b] creates a
+    [%name = mul %x, %y]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateMul]. **)
 external build_mul : llvalue -> llvalue -> string -> llbuilder -> llvalue
                    = "llvm_build_mul"
+
+(** [build_udiv x y name b] creates a
+    [%name = udiv %x, %y]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateUDiv]. **)
 external build_udiv : llvalue -> llvalue -> string -> llbuilder -> llvalue
                     = "llvm_build_udiv"
+
+(** [build_sdiv x y name b] creates a
+    [%name = sdiv %x, %y]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateSDiv]. **)
 external build_sdiv : llvalue -> llvalue -> string -> llbuilder -> llvalue
                     = "llvm_build_sdiv"
+
+(** [build_fdiv x y name b] creates a
+    [%name = fdiv %x, %y]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateFDiv]. **)
 external build_fdiv : llvalue -> llvalue -> string -> llbuilder -> llvalue
                     = "llvm_build_fdiv"
+
+(** [build_urem x y name b] creates a
+    [%name = urem %x, %y]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateURem]. **)
 external build_urem : llvalue -> llvalue -> string -> llbuilder -> llvalue
                     = "llvm_build_urem"
+
+(** [build_SRem x y name b] creates a
+    [%name = srem %x, %y]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateSRem]. **)
 external build_srem : llvalue -> llvalue -> string -> llbuilder -> llvalue
                     = "llvm_build_srem"
+
+(** [build_frem x y name b] creates a
+    [%name = frem %x, %y]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateFRem]. **)
 external build_frem : llvalue -> llvalue -> string -> llbuilder -> llvalue
                     = "llvm_build_frem"
+
+(** [build_shl x y name b] creates a
+    [%name = shl %x, %y]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateShl]. **)
 external build_shl : llvalue -> llvalue -> string -> llbuilder -> llvalue
                    = "llvm_build_shl"
+
+(** [build_lshr x y name b] creates a
+    [%name = lshr %x, %y]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateLShr]. **)
 external build_lshr : llvalue -> llvalue -> string -> llbuilder -> llvalue
                     = "llvm_build_lshr"
+
+(** [build_ashr x y name b] creates a
+    [%name = ashr %x, %y]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateAShr]. **)
 external build_ashr : llvalue -> llvalue -> string -> llbuilder -> llvalue
                     = "llvm_build_ashr"
+
+(** [build_and x y name b] creates a
+    [%name = and %x, %y]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateAnd]. **)
 external build_and : llvalue -> llvalue -> string -> llbuilder -> llvalue
                    = "llvm_build_and"
+
+(** [build_or x y name b] creates a
+    [%name = or %x, %y]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateOr]. **)
 external build_or : llvalue -> llvalue -> string -> llbuilder -> llvalue
                   = "llvm_build_or"
+
+(** [build_xor x y name b] creates a
+    [%name = xor %x, %y]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateXor]. **)
 external build_xor : llvalue -> llvalue -> string -> llbuilder -> llvalue
                    = "llvm_build_xor"
+
+(** [build_neg x name b] creates a
+    [%name = sub 0, %x]
+    instruction at the position specified by the instruction builder [b].
+    [-0.0] is used for floating point types to compute the correct sign.
+    See the method [llvm::LLVMBuilder::CreateNeg]. **)
 external build_neg : llvalue -> string -> llbuilder -> llvalue
                    = "llvm_build_neg"
+
+(** [build_xor x name b] creates a
+    [%name = xor %x, -1]
+    instruction at the position specified by the instruction builder [b].
+    [-1] is the correct "all ones" value for the type of [x].
+    See the method [llvm::LLVMBuilder::CreateXor]. **)
 external build_not : llvalue -> string -> llbuilder -> llvalue
                    = "llvm_build_not"
 
 (*--... Memory .............................................................--*)
+
+(** [build_malloc ty name b] creates a
+    [%name = malloc %ty]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateAlloca]. **)
 external build_malloc : lltype -> string -> llbuilder -> llvalue
                       = "llvm_build_malloc"
+
+(** [build_array_malloc ty n name b] creates a
+    [%name = malloc %ty, %n]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateMalloc]. **)
 external build_array_malloc : lltype -> llvalue -> string -> llbuilder ->
                               llvalue = "llvm_build_array_malloc"
+
+(** [build_alloca ty name b] creates a
+    [%name = alloca %ty]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateAlloca]. **)
 external build_alloca : lltype -> string -> llbuilder -> llvalue
                       = "llvm_build_alloca"
+
+(** [build_array_alloca ty n name b] creates a
+    [%name = alloca %ty, %n]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateAlloca]. **)
 external build_array_alloca : lltype -> llvalue -> string -> llbuilder ->
                               llvalue = "llvm_build_array_alloca"
+
+(** [build_free v b] creates a
+    [free %v]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateFree]. **)
 external build_free : llvalue -> llbuilder -> llvalue = "llvm_build_free"
+
+(** [build_load v name b] creates a
+    [%name = load %v]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateLoad]. **)
 external build_load : llvalue -> string -> llbuilder -> llvalue
                     = "llvm_build_load"
+
+(** [build_store v p b] creates a
+    [store %v, %p]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateStore]. **)
 external build_store : llvalue -> llvalue -> llbuilder -> llvalue
                      = "llvm_build_store"
+
+(** [build_store p indices name b] creates a
+    [%name = gep %p, indices...]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateGetElementPtr]. **)
 external build_gep : llvalue -> llvalue array -> string -> llbuilder -> llvalue
                    = "llvm_build_gep"
 
 (*--... Casts ..............................................................--*)
+
+(** [build_trunc v ty name b] creates a
+    [%name = trunc %p to %ty]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateTrunc]. **)
 external build_trunc : llvalue -> lltype -> string -> llbuilder -> llvalue
                      = "llvm_build_trunc"
+
+(** [build_zext v ty name b] creates a
+    [%name = zext %p to %ty]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateZExt]. **)
 external build_zext : llvalue -> lltype -> string -> llbuilder -> llvalue
                     = "llvm_build_zext"
+
+(** [build_sext v ty name b] creates a
+    [%name = sext %p to %ty]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateSExt]. **)
 external build_sext : llvalue -> lltype -> string -> llbuilder -> llvalue
                     = "llvm_build_sext"
+
+(** [build_fptoui v ty name b] creates a
+    [%name = fptoui %p to %ty]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateFPToUI]. **)
 external build_fptoui : llvalue -> lltype -> string -> llbuilder -> llvalue
                       = "llvm_build_fptoui"
+
+(** [build_fptosi v ty name b] creates a
+    [%name = fptosi %p to %ty]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateFPToSI]. **)
 external build_fptosi : llvalue -> lltype -> string -> llbuilder -> llvalue
                       = "llvm_build_fptosi"
+
+(** [build_uitofp v ty name b] creates a
+    [%name = uitofp %p to %ty]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateUIToFP]. **)
 external build_uitofp : llvalue -> lltype -> string -> llbuilder -> llvalue
                       = "llvm_build_uitofp"
+
+(** [build_sitofp v ty name b] creates a
+    [%name = sitofp %p to %ty]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateSIToFP]. **)
 external build_sitofp : llvalue -> lltype -> string -> llbuilder -> llvalue
                       = "llvm_build_sitofp"
+
+(** [build_fptrunc v ty name b] creates a
+    [%name = fptrunc %p to %ty]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateFPTrunc]. **)
 external build_fptrunc : llvalue -> lltype -> string -> llbuilder -> llvalue
                        = "llvm_build_fptrunc"
+
+(** [build_fpext v ty name b] creates a
+    [%name = fpext %p to %ty]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateFPExt]. **)
 external build_fpext : llvalue -> lltype -> string -> llbuilder -> llvalue
                      = "llvm_build_fpext"
+
+(** [build_ptrtoint v ty name b] creates a
+    [%name = prtotint %p to %ty]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreatePtrToInt]. **)
 external build_ptrtoint : llvalue -> lltype -> string -> llbuilder -> llvalue
                         = "llvm_build_prttoint"
+
+(** [build_inttoptr v ty name b] creates a
+    [%name = inttoptr %p to %ty]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateIntToPtr]. **)
 external build_inttoptr : llvalue -> lltype -> string -> llbuilder -> llvalue
                         = "llvm_build_inttoptr"
+
+(** [build_bitcast v ty name b] creates a
+    [%name = bitcast %p to %ty]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateBitcast]. **)
 external build_bitcast : llvalue -> lltype -> string -> llbuilder -> llvalue
                        = "llvm_build_bitcast"
 
 (*--... Comparisons ........................................................--*)
+
+(** [build_icmp pred x y name b] creates a
+    [%name = icmp %pred %x, %y]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateICmp]. **)
 external build_icmp : int_predicate -> llvalue -> llvalue -> string ->
                       llbuilder -> llvalue = "llvm_build_icmp"
+
+(** [build_fcmp pred x y name b] creates a
+    [%name = fcmp %pred %x, %y]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateFCmp]. **)
 external build_fcmp : real_predicate -> llvalue -> llvalue -> string ->
                       llbuilder -> llvalue = "llvm_build_fcmp"
 
 (*--... Miscellaneous instructions .........................................--*)
+
+(** [build_phi incoming name b] creates a
+    [%name = phi %incoming]
+    instruction at the position specified by the instruction builder [b].
+    [incoming] is a list of [(llvalue, llbasicblock)] tuples.
+    See the method [llvm::LLVMBuilder::CreatePHI]. **)
 external build_phi : (llvalue * llbasicblock) list -> string -> llbuilder ->
                      llvalue = "llvm_build_phi"
+
+(** [build_call fn args name b] creates a
+    [%name = call %fn(args...)]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateCall]. **)
 external build_call : llvalue -> llvalue array -> string -> llbuilder -> llvalue
                     = "llvm_build_call"
+
+(** [build_select cond thenv elsev name b] creates a
+    [%name = select %cond, %thenv, %elsev]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateSelect]. **)
 external build_select : llvalue -> llvalue -> llvalue -> string -> llbuilder ->
                         llvalue = "llvm_build_select"
+
+(** [build_va_arg valist argty name b] creates a
+    [%name = va_arg %valist, %argty]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateVAArg]. **)
 external build_va_arg : llvalue -> lltype -> string -> llbuilder -> llvalue
                       = "llvm_build_va_arg"
+
+(** [build_extractelement vec i name b] creates a
+    [%name = extractelement %vec, %i]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateExtractElement]. **)
 external build_extractelement : llvalue -> llvalue -> string -> llbuilder ->
                                 llvalue = "llvm_build_extractelement"
+
+(** [build_insertelement vec elt i name b] creates a
+    [%name = insertelement %vec, %elt, %i]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateInsertElement]. **)
 external build_insertelement : llvalue -> llvalue -> llvalue -> string ->
                                llbuilder -> llvalue = "llvm_build_insertelement"
+
+(** [build_shufflevector veca vecb mask name b] creates a
+    [%name = shufflevector %veca, %vecb, %mask]
+    instruction at the position specified by the instruction builder [b].
+    See the method [llvm::LLVMBuilder::CreateShuffleVector]. **)
 external build_shufflevector : llvalue -> llvalue -> llvalue -> string ->
                                llbuilder -> llvalue = "llvm_build_shufflevector"
diff --git a/bindings/ocaml/llvm/llvm_ocaml.c b/bindings/ocaml/llvm/llvm_ocaml.c
index ddf577adb2..a0b39c69fb 100644
--- a/bindings/ocaml/llvm/llvm_ocaml.c
+++ b/bindings/ocaml/llvm/llvm_ocaml.c
@@ -57,13 +57,6 @@ CAMLprim value llvm_classify_type(LLVMTypeRef Ty) {
   return Val_int(LLVMGetTypeKind(Ty));
 }
 
-/* lltype -> lltype -> unit */
-CAMLprim value llvm_refine_abstract_type(LLVMTypeRef ConcreteTy,
-                                         LLVMTypeRef AbstractTy) {
-  LLVMRefineAbstractType(AbstractTy, ConcreteTy);
-  return Val_unit;
-}
-
 /*--... Operations on integer types ........................................--*/
 
 /* unit -> lltype */