[llvm] r194138 - [OCaml] Impement Llvm_irreader, bindings to LLVM assembly parser
Peter Zotov
whitequark at whitequark.org
Wed Nov 6 01:21:25 PST 2013
Author: whitequark
Date: Wed Nov 6 03:21:25 2013
New Revision: 194138
URL: http://llvm.org/viewvc/llvm-project?rev=194138&view=rev
Log:
[OCaml] Impement Llvm_irreader, bindings to LLVM assembly parser
Added:
llvm/trunk/bindings/ocaml/irreader/
llvm/trunk/bindings/ocaml/irreader/Makefile
llvm/trunk/bindings/ocaml/irreader/irreader_ocaml.c
llvm/trunk/bindings/ocaml/irreader/llvm_irreader.ml
llvm/trunk/bindings/ocaml/irreader/llvm_irreader.mli
llvm/trunk/test/Bindings/Ocaml/irreader.ml
Modified:
llvm/trunk/bindings/ocaml/Makefile
llvm/trunk/bindings/ocaml/llvm/META.llvm.in
Modified: llvm/trunk/bindings/ocaml/Makefile
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/bindings/ocaml/Makefile?rev=194138&r1=194137&r2=194138&view=diff
==============================================================================
--- llvm/trunk/bindings/ocaml/Makefile (original)
+++ llvm/trunk/bindings/ocaml/Makefile Wed Nov 6 03:21:25 2013
@@ -8,7 +8,8 @@
##===----------------------------------------------------------------------===##
LEVEL := ../..
-DIRS = llvm bitreader bitwriter analysis target executionengine transforms linker
+DIRS = llvm bitreader bitwriter irreader analysis target executionengine \
+ transforms linker
ExtraMakefiles = $(PROJ_OBJ_DIR)/Makefile.ocaml
ocamldoc:
Added: llvm/trunk/bindings/ocaml/irreader/Makefile
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/bindings/ocaml/irreader/Makefile?rev=194138&view=auto
==============================================================================
--- llvm/trunk/bindings/ocaml/irreader/Makefile (added)
+++ llvm/trunk/bindings/ocaml/irreader/Makefile Wed Nov 6 03:21:25 2013
@@ -0,0 +1,19 @@
+##===- bindings/ocaml/irreader/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_irreader interface.
+#
+##===----------------------------------------------------------------------===##
+
+LEVEL := ../../..
+LIBRARYNAME := llvm_irreader
+UsedComponents := irreader
+UsedOcamlInterfaces := llvm
+
+include ../Makefile.ocaml
Added: llvm/trunk/bindings/ocaml/irreader/irreader_ocaml.c
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/bindings/ocaml/irreader/irreader_ocaml.c?rev=194138&view=auto
==============================================================================
--- llvm/trunk/bindings/ocaml/irreader/irreader_ocaml.c (added)
+++ llvm/trunk/bindings/ocaml/irreader/irreader_ocaml.c Wed Nov 6 03:21:25 2013
@@ -0,0 +1,59 @@
+/*===-- irreader_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. *|
+|* *|
+\*===----------------------------------------------------------------------===*/
+
+#include "llvm-c/IRReader.h"
+#include "caml/alloc.h"
+#include "caml/fail.h"
+#include "caml/memory.h"
+
+/* Can't use the recommended caml_named_value mechanism for backwards
+ compatibility reasons. This is largely equivalent. */
+static value llvm_irreader_error_exn;
+
+CAMLprim value llvm_register_irreader_exns(value Error) {
+ llvm_irreader_error_exn = Field(Error, 0);
+ register_global_root(&llvm_irreader_error_exn);
+ return Val_unit;
+}
+
+static void llvm_raise(value Prototype, char *Message) {
+ CAMLparam1(Prototype);
+ CAMLlocal1(CamlMessage);
+
+ CamlMessage = copy_string(Message);
+ LLVMDisposeMessage(Message);
+
+ raise_with_arg(Prototype, CamlMessage);
+ abort(); /* NOTREACHED */
+#ifdef CAMLnoreturn
+ CAMLnoreturn; /* Silences warnings, but is missing in some versions. */
+#endif
+}
+
+
+/*===-- Modules -----------------------------------------------------------===*/
+
+/* Llvm.llcontext -> Llvm.llmemorybuffer -> Llvm.llmodule */
+CAMLprim value llvm_parse_ir(LLVMContextRef C,
+ LLVMMemoryBufferRef MemBuf) {
+ CAMLparam0();
+ CAMLlocal2(Variant, MessageVal);
+ LLVMModuleRef M;
+ char *Message;
+
+ if (LLVMParseIRInContext(C, MemBuf, &M, &Message))
+ llvm_raise(llvm_irreader_error_exn, Message);
+
+ CAMLreturn((value) M);
+}
Added: llvm/trunk/bindings/ocaml/irreader/llvm_irreader.ml
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/bindings/ocaml/irreader/llvm_irreader.ml?rev=194138&view=auto
==============================================================================
--- llvm/trunk/bindings/ocaml/irreader/llvm_irreader.ml (added)
+++ llvm/trunk/bindings/ocaml/irreader/llvm_irreader.ml Wed Nov 6 03:21:25 2013
@@ -0,0 +1,17 @@
+(*===-- llvm_irreader.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.
+ *
+ *===----------------------------------------------------------------------===*)
+
+
+exception Error of string
+
+external register_exns : exn -> unit = "llvm_register_irreader_exns"
+let _ = register_exns (Error "")
+
+external parse_ir : Llvm.llcontext -> Llvm.llmemorybuffer -> Llvm.llmodule
+ = "llvm_parse_ir"
Added: llvm/trunk/bindings/ocaml/irreader/llvm_irreader.mli
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/bindings/ocaml/irreader/llvm_irreader.mli?rev=194138&view=auto
==============================================================================
--- llvm/trunk/bindings/ocaml/irreader/llvm_irreader.mli (added)
+++ llvm/trunk/bindings/ocaml/irreader/llvm_irreader.mli Wed Nov 6 03:21:25 2013
@@ -0,0 +1,21 @@
+(*===-- llvm_irreader.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.
+ *
+ *===----------------------------------------------------------------------===*)
+
+(** IR reader.
+
+ This interface provides an OCaml API for the LLVM assembly reader, the
+ classes in the IRReader library. *)
+
+exception Error of string
+
+(** [parse_ir context mb] parses the IR for a new module [m] from the
+ memory buffer [mb] in the context [context]. Returns [m] if successful, or
+ raises [Error msg] otherwise, where [msg] is a description of the error
+ encountered. See the function [llvm::ParseIR]. *)
+val parse_ir : Llvm.llcontext -> Llvm.llmemorybuffer -> Llvm.llmodule
Modified: llvm/trunk/bindings/ocaml/llvm/META.llvm.in
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/bindings/ocaml/llvm/META.llvm.in?rev=194138&r1=194137&r2=194138&view=diff
==============================================================================
--- llvm/trunk/bindings/ocaml/llvm/META.llvm.in (original)
+++ llvm/trunk/bindings/ocaml/llvm/META.llvm.in Wed Nov 6 03:21:25 2013
@@ -46,6 +46,14 @@ package "ipo" (
archive(native) = "llvm_ipo.cmxa"
)
+package "irreader" (
+ requires = "llvm"
+ version = "@PACKAGE_VERSION@"
+ description = "IR assembly reader for LLVM"
+ archive(byte) = "llvm_irreader.cma"
+ archive(native) = "llvm_irreader.cmxa"
+)
+
package "scalar_opts" (
requires = "llvm"
version = "@PACKAGE_VERSION@"
Added: llvm/trunk/test/Bindings/Ocaml/irreader.ml
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Bindings/Ocaml/irreader.ml?rev=194138&view=auto
==============================================================================
--- llvm/trunk/test/Bindings/Ocaml/irreader.ml (added)
+++ llvm/trunk/test/Bindings/Ocaml/irreader.ml Wed Nov 6 03:21:25 2013
@@ -0,0 +1,59 @@
+(* RUN: rm -rf %t.builddir
+ * RUN: mkdir -p %t.builddir
+ * RUN: cp %s %t.builddir
+ * RUN: %ocamlopt -g -warn-error A llvm.cmxa llvm_irreader.cmxa %t.builddir/irreader.ml -o %t
+ * RUN: %t
+ * XFAIL: vg_leak
+ *)
+
+(* Note: It takes several seconds for ocamlopt 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_irreader
+
+let context = global_context ()
+
+(* Tiny unit test framework - really just to help find which line is busted *)
+let print_checkpoints = false
+
+let suite name f =
+ if print_checkpoints then
+ prerr_endline (name ^ ":");
+ f ()
+
+let _ =
+ Printexc.record_backtrace true
+
+let insist cond =
+ if not cond then failwith "insist"
+
+
+(*===-- IR Reader ---------------------------------------------------------===*)
+
+let test_irreader () =
+ begin
+ let buf = MemoryBuffer.of_string "@foo = global i32 42" in
+ let m = parse_ir context buf in
+ match lookup_global "foo" m with
+ | Some foo ->
+ insist ((global_initializer foo) = (const_int (i32_type context) 42))
+ | None ->
+ failwith "global"
+ end;
+
+ begin
+ let buf = MemoryBuffer.of_string "@foo = global garble" in
+ try
+ ignore (parse_ir context buf);
+ failwith "parsed"
+ with Llvm_irreader.Error _ ->
+ ()
+ end
+
+
+(*===-- Driver ------------------------------------------------------------===*)
+
+let _ =
+ suite "irreader" test_irreader
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