1 //===-- ObjectCache.h - Class definition for the ObjectCache ----*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #ifndef LLVM_EXECUTIONENGINE_OBJECTCACHE_H
10 #define LLVM_EXECUTIONENGINE_OBJECTCACHE_H
11 
12 #include <memory>
13 
14 namespace llvm {
15 
16 class MemoryBuffer;
17 class MemoryBufferRef;
18 class 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.
23 class ObjectCache {
24   virtual void anchor();
25 
26 public:
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