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