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      1 /*===-- irreader_ocaml.c - LLVM OCaml Glue ----------------------*- C++ -*-===*\
      2 |*                                                                            *|
      3 |*                     The LLVM Compiler Infrastructure                       *|
      4 |*                                                                            *|
      5 |* This file is distributed under the University of Illinois Open Source      *|
      6 |* License. See LICENSE.TXT for details.                                      *|
      7 |*                                                                            *|
      8 |*===----------------------------------------------------------------------===*|
      9 |*                                                                            *|
     10 |* This file glues LLVM's OCaml interface to its C interface. These functions *|
     11 |* are by and large transparent wrappers to the corresponding C functions.    *|
     12 |*                                                                            *|
     13 \*===----------------------------------------------------------------------===*/
     14 
     15 #include "llvm-c/IRReader.h"
     16 #include "caml/alloc.h"
     17 #include "caml/fail.h"
     18 #include "caml/memory.h"
     19 #include "caml/callback.h"
     20 
     21 void llvm_raise(value Prototype, char *Message);
     22 
     23 /* Llvm.llcontext -> Llvm.llmemorybuffer -> Llvm.llmodule */
     24 CAMLprim value llvm_parse_ir(LLVMContextRef C,
     25                              LLVMMemoryBufferRef MemBuf) {
     26   CAMLparam0();
     27   CAMLlocal2(Variant, MessageVal);
     28   LLVMModuleRef M;
     29   char *Message;
     30 
     31   if (LLVMParseIRInContext(C, MemBuf, &M, &Message))
     32     llvm_raise(*caml_named_value("Llvm_irreader.Error"), Message);
     33 
     34   CAMLreturn((value) M);
     35 }
     36