ObjectCache.h revision 314564 
1//===-- ObjectCache.h - Class definition for the ObjectCache ----*- 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#ifndef LLVM_EXECUTIONENGINE_OBJECTCACHE_H
11#define LLVM_EXECUTIONENGINE_OBJECTCACHE_H
12
13#include "llvm/Support/MemoryBuffer.h"
14#include <memory>
15
16namespace llvm {
17
18class Module;
19
20/// This is the base ObjectCache type which can be provided to an
21/// ExecutionEngine for the purpose of avoiding compilation for Modules that
22/// have already been compiled and an object file is available.
23class ObjectCache {
24  virtual void anchor();
25
26public:
27  ObjectCache() = default;
28
29  virtual ~ObjectCache() = default;
30
31  /// notifyObjectCompiled - Provides a pointer to compiled code for Module M.
32  virtual void notifyObjectCompiled(const Module *M, MemoryBufferRef Obj) = 0;
33
34  /// Returns a pointer to a newly allocated MemoryBuffer that contains the
35  /// object which corresponds with Module M, or 0 if an object is not
36  /// available.
37  virtual std::unique_ptr<MemoryBuffer> getObject(const Module* M) = 0;
38};
39
40} // end namespace llvm
41
42#endif // LLVM_EXECUTIONENGINE_OBJECTCACHE_H
43