C and Objective Caml bindings for the TargetData class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48422 91177308-0d34-0410-b5e6-96231b3b80d8

5 files changed, 276 insertions, 1 deletions

diff --git a/bindings/ocaml/Makefile b/bindings/ocaml/Makefile
index 868b110652..a89caefb4d 100644
--- a/bindings/ocaml/Makefile
+++ b/bindings/ocaml/Makefile
@@ -8,7 +8,7 @@
 ##===----------------------------------------------------------------------===##
 
 LEVEL := ../..
-DIRS = llvm bitreader bitwriter analysis executionengine transforms
+DIRS = llvm bitreader bitwriter analysis target executionengine transforms
 ExtraMakefiles = $(PROJ_OBJ_DIR)/Makefile.ocaml
 
 ocamldoc:
diff --git a/bindings/ocaml/target/Makefile b/bindings/ocaml/target/Makefile
new file mode 100644
index 0000000000..5cd677b766
--- /dev/null
+++ b/bindings/ocaml/target/Makefile
@@ -0,0 +1,20 @@
+##===- bindings/ocaml/target/Makefile ----------------------*- Makefile -*-===##
+#
+#                     The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+#
+##===----------------------------------------------------------------------===##
+#
+# This is the makefile for the Objective Caml Llvm_target interface.
+#
+##===----------------------------------------------------------------------===##
+
+LEVEL := ../../..
+LIBRARYNAME := llvm_target
+DONT_BUILD_RELINKED := 1
+UsedComponents := target
+UsedOcamlInterfaces := llvm
+
+include ../Makefile.ocaml
diff --git a/bindings/ocaml/target/llvm_target.ml b/bindings/ocaml/target/llvm_target.ml
new file mode 100644
index 0000000000..ea5341d5e8
--- /dev/null
+++ b/bindings/ocaml/target/llvm_target.ml
@@ -0,0 +1,44 @@
+(*===-- llvm_target.ml - LLVM Ocaml Interface ------------------*- OCaml -*-===*
+ *
+ *                     The LLVM Compiler Infrastructure
+ *
+ * This file is distributed under the University of Illinois Open Source
+ * License. See LICENSE.TXT for details.
+ *
+ *===----------------------------------------------------------------------===*)
+
+module Endian = struct
+  type t =
+  | Big
+  | Little
+end
+
+module TargetData = struct
+  type t
+
+  external create : string -> t = "llvm_targetdata_create"
+  external add : t -> [<Llvm.PassManager.any] Llvm.PassManager.t -> unit
+               = "llvm_targetdata_add"
+  external as_string : t -> string = "llvm_targetdata_as_string"
+  external invalidate_struct_layout : t -> Llvm.lltype -> unit
+                                    = "llvm_targetdata_invalidate_struct_layout"
+  external dispose : t -> unit = "llvm_targetdata_dispose"
+end
+
+external byte_order : TargetData.t -> Endian.t = "llvm_byte_order"
+external pointer_size : TargetData.t -> int = "llvm_pointer_size"
+external intptr_type : TargetData.t -> Llvm.lltype = "LLVMIntPtrType"
+external size_in_bits : TargetData.t -> Llvm.lltype -> Int64.t
+                      = "llvm_size_in_bits"
+external store_size : TargetData.t -> Llvm.lltype -> Int64.t = "llvm_store_size"
+external abi_size : TargetData.t -> Llvm.lltype -> Int64.t = "llvm_abi_size"
+external abi_align : TargetData.t -> Llvm.lltype -> int = "llvm_abi_align"
+external stack_align : TargetData.t -> Llvm.lltype -> int = "llvm_stack_align"
+external preferred_align : TargetData.t -> Llvm.lltype -> int
+                         = "llvm_preferred_align"
+external preferred_align_of_global : TargetData.t -> Llvm.llvalue -> int
+                                   = "llvm_preferred_align_of_global"
+external element_at_offset : TargetData.t -> Llvm.lltype -> Int64.t -> int
+                           = "llvm_element_at_offset"
+external offset_of_element : TargetData.t -> Llvm.lltype -> int -> Int64.t
+                           = "llvm_offset_of_element"
diff --git a/bindings/ocaml/target/llvm_target.mli b/bindings/ocaml/target/llvm_target.mli
new file mode 100644
index 0000000000..a44758f95b
--- /dev/null
+++ b/bindings/ocaml/target/llvm_target.mli
@@ -0,0 +1,102 @@
+(*===-- llvm_target.mli - LLVM Ocaml Interface -----------------*- OCaml -*-===*
+ *
+ *                     The LLVM Compiler Infrastructure
+ *
+ * This file is distributed under the University of Illinois Open Source
+ * License. See LICENSE.TXT for details.
+ *
+ *===----------------------------------------------------------------------===*)
+
+(** Target Information.
+
+    This interface provides an ocaml API for LLVM target information,
+    the classes in the Target library. *)
+
+module Endian : sig
+  type t =
+  | Big
+  | Little
+end
+
+module TargetData : sig
+  type t
+
+  (** [TargetData.create rep] parses the target data string representation [rep].
+      See the constructor llvm::TargetData::TargetData. *)
+  external create : string -> t = "llvm_targetdata_create"
+
+  (** [add_target_data td pm] adds the target data [td] to the pass manager [pm].
+      Does not take ownership of the target data.
+      See the method llvm::PassManagerBase::add. *)
+  external add : t -> [<Llvm.PassManager.any] Llvm.PassManager.t -> unit
+               = "llvm_targetdata_add"
+
+  (** [as_string td] is the string representation of the target data [td].
+      See the constructor llvm::TargetData::TargetData. *)
+  external as_string : t -> string = "llvm_targetdata_as_string"
+
+  (** Struct layouts are speculatively cached. If a TargetDataRef is alive when
+      types are being refined and removed, this method must be called whenever a
+      struct type is removed to avoid a dangling pointer in this cache.
+      See the method llvm::TargetData::InvalidateStructLayoutInfo. *)
+  external invalidate_struct_layout : t -> Llvm.lltype -> unit
+                                    = "llvm_targetdata_invalidate_struct_layout"
+
+  (** Deallocates a TargetData.
+      See the destructor llvm::TargetData::~TargetData. *)
+  external dispose : t -> unit = "llvm_targetdata_dispose"
+end
+
+(** Returns the byte order of a target, either LLVMBigEndian or
+    LLVMLittleEndian.
+    See the method llvm::TargetData::isLittleEndian. *)
+external byte_order : TargetData.t -> Endian.t = "llvm_byte_order"
+
+(** Returns the pointer size in bytes for a target.
+    See the method llvm::TargetData::getPointerSize. *)
+external pointer_size : TargetData.t -> int = "llvm_pointer_size"
+
+(** Returns the integer type that is the same size as a pointer on a target.
+    See the method llvm::TargetData::getIntPtrType. *)
+external intptr_type : TargetData.t -> Llvm.lltype = "LLVMIntPtrType"
+
+(** Computes the size of a type in bytes for a target.
+    See the method llvm::TargetData::getTypeSizeInBits. *)
+external size_in_bits : TargetData.t -> Llvm.lltype -> Int64.t
+                      = "llvm_size_in_bits"
+
+(** Computes the storage size of a type in bytes for a target.
+    See the method llvm::TargetData::getTypeStoreSize. *)
+external store_size : TargetData.t -> Llvm.lltype -> Int64.t = "llvm_store_size"
+
+(** Computes the ABI size of a type in bytes for a target.
+    See the method llvm::TargetData::getABITypeSize. *)
+external abi_size : TargetData.t -> Llvm.lltype -> Int64.t = "llvm_abi_size"
+
+(** Computes the ABI alignment of a type in bytes for a target.
+    See the method llvm::TargetData::getTypeABISize. *)
+external abi_align : TargetData.t -> Llvm.lltype -> int = "llvm_abi_align"
+
+(** Computes the call frame alignment of a type in bytes for a target.
+    See the method llvm::TargetData::getTypeABISize. *)
+external stack_align : TargetData.t -> Llvm.lltype -> int = "llvm_stack_align"
+
+(** Computes the preferred alignment of a type in bytes for a target.
+    See the method llvm::TargetData::getTypeABISize. *)
+external preferred_align : TargetData.t -> Llvm.lltype -> int
+                         = "llvm_preferred_align"
+
+(** Computes the preferred alignment of a global variable in bytes for a target.
+    See the method llvm::TargetData::getPreferredAlignment. *)
+external preferred_align_of_global : TargetData.t -> Llvm.llvalue -> int
+                                   = "llvm_preferred_align_of_global"
+
+(** Computes the structure element that contains the byte offset for a target.
+    See the method llvm::StructLayout::getElementContainingOffset. *)
+external element_at_offset : TargetData.t -> Llvm.lltype -> Int64.t -> int
+                           = "llvm_element_at_offset"
+
+(** Computes the byte offset of the indexed struct element for a target.
+    See the method llvm::StructLayout::getElementContainingOffset. *)
+external offset_of_element : TargetData.t -> Llvm.lltype -> int -> Int64.t
+                           = "llvm_offset_of_element"
diff --git a/bindings/ocaml/target/target_ocaml.c b/bindings/ocaml/target/target_ocaml.c
new file mode 100644
index 0000000000..cc20e8187a
--- /dev/null
+++ b/bindings/ocaml/target/target_ocaml.c
@@ -0,0 +1,109 @@
+/*===-- target_ocaml.c - LLVM Ocaml Glue ------------------------*- C++ -*-===*\
+|*                                                                            *|
+|*                     The LLVM Compiler Infrastructure                       *|
+|*                                                                            *|
+|* This file is distributed under the University of Illinois Open Source      *|
+|* License. See LICENSE.TXT for details.                                      *|
+|*                                                                            *|
+|*===----------------------------------------------------------------------===*|
+|*                                                                            *|
+|* This file glues LLVM's ocaml interface to its C interface. These functions *|
+|* are by and large transparent wrappers to the corresponding C functions.    *|
+|*                                                                            *|
+|* Note that these functions intentionally take liberties with the CAMLparamX *|
+|* macros, since most of the parameters are not GC heap objects.              *|
+|*                                                                            *|
+\*===----------------------------------------------------------------------===*/
+
+#include "llvm-c/Target.h"
+#include "caml/alloc.h"
+
+/* string -> TargetData.t */
+CAMLprim LLVMTargetDataRef llvm_targetdata_create(value StringRep) {
+  return LLVMCreateTargetData(String_val(StringRep));
+}
+
+/* TargetData.t -> [<Llvm.PassManager.any] Llvm.PassManager.t -> unit */
+CAMLprim value llvm_targetdata_add(LLVMTargetDataRef TD, LLVMPassManagerRef PM){
+  LLVMAddTargetData(TD, PM);
+  return Val_unit;
+}
+
+/* TargetData.t -> string */
+CAMLprim value llvm_targetdata_as_string(LLVMTargetDataRef TD) {
+  char *StringRep = LLVMCopyStringRepOfTargetData(TD);
+  value Copy = copy_string(StringRep);
+  LLVMDisposeMessage(StringRep);
+  return Copy;
+}
+
+/* TargetData.t -> Llvm.lltype -> unit */
+CAMLprim value llvm_targetdata_invalidate_struct_layout(LLVMTargetDataRef TD,
+                                                        LLVMTypeRef Ty) {
+  LLVMInvalidateStructLayout(TD, Ty);
+  return Val_unit;
+}
+
+/* TargetData.t -> unit */
+CAMLprim value llvm_targetdata_dispose(LLVMTargetDataRef TD) {
+  LLVMDisposeTargetData(TD);
+  return Val_unit;
+}
+
+/* TargetData.t -> Endian.t */
+CAMLprim value llvm_byte_order(LLVMTargetDataRef TD) {
+  return Val_int(LLVMByteOrder(TD));
+}
+
+/* TargetData.t -> int */
+CAMLprim value llvm_pointer_size(LLVMTargetDataRef TD) {
+  return Val_int(LLVMPointerSize(TD));
+}
+
+/* TargetData.t -> Llvm.lltype -> Int64.t */
+CAMLprim value llvm_size_in_bits(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
+  return caml_copy_int64(LLVMSizeOfTypeInBits(TD, Ty));
+}
+
+/* TargetData.t -> Llvm.lltype -> Int64.t */
+CAMLprim value llvm_store_size(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
+  return caml_copy_int64(LLVMStoreSizeOfType(TD, Ty));
+}
+
+/* TargetData.t -> Llvm.lltype -> Int64.t */
+CAMLprim value llvm_abi_size(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
+  return caml_copy_int64(LLVMABISizeOfType(TD, Ty));
+}
+
+/* TargetData.t -> Llvm.lltype -> int */
+CAMLprim value llvm_abi_align(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
+  return Val_int(LLVMABIAlignmentOfType(TD, Ty));
+}
+
+/* TargetData.t -> Llvm.lltype -> int */
+CAMLprim value llvm_stack_align(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
+  return Val_int(LLVMCallFrameAlignmentOfType(TD, Ty));
+}
+
+/* TargetData.t -> Llvm.lltype -> int */
+CAMLprim value llvm_preferred_align(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
+  return Val_int(LLVMPreferredAlignmentOfType(TD, Ty));
+}
+
+/* TargetData.t -> Llvm.llvalue -> int */
+CAMLprim value llvm_preferred_align_of_global(LLVMTargetDataRef TD,
+                                              LLVMValueRef GlobalVar) {
+  return Val_int(LLVMPreferredAlignmentOfGlobal(TD, GlobalVar));
+}
+
+/* TargetData.t -> Llvm.lltype -> Int64.t -> int */
+CAMLprim value llvm_element_at_offset(LLVMTargetDataRef TD, LLVMTypeRef Ty,
+                                      value Offset) {
+  return Val_int(LLVMElementAtOffset(TD, Ty, Int_val(Offset)));
+}
+
+/* TargetData.t -> Llvm.lltype -> int -> Int64.t */
+CAMLprim value llvm_offset_of_element(LLVMTargetDataRef TD, LLVMTypeRef Ty,
+                                      value Index) {
+  return caml_copy_int64(LLVMOffsetOfElement(TD, Ty, Int_val(Index)));
+}