LLVM  10.0.0svn
Caching.h
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1 //===- Caching.h - LLVM Link Time Optimizer Configuration -----------------===//
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 // This file defines the localCache function, which allows clients to add a
10 // filesystem cache to ThinLTO.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_LTO_CACHING_H
15 #define LLVM_LTO_CACHING_H
16 
17 #include "llvm/LTO/LTO.h"
18 #include <string>
19 
20 namespace llvm {
21 namespace lto {
22 
23 /// This type defines the callback to add a pre-existing native object file
24 /// (e.g. in a cache).
25 ///
26 /// Buffer callbacks must be thread safe.
27 using AddBufferFn =
28  std::function<void(unsigned Task, std::unique_ptr<MemoryBuffer> MB)>;
29 
30 /// Create a local file system cache which uses the given cache directory and
31 /// file callback. This function also creates the cache directory if it does not
32 /// already exist.
34  AddBufferFn AddBuffer);
35 
36 } // namespace lto
37 } // namespace llvm
38 
39 #endif
This class represents lattice values for constants.
Definition: AllocatorList.h:23
Tagged union holding either a T or a Error.
Definition: yaml2obj.h:21
std::function< void(unsigned Task, std::unique_ptr< MemoryBuffer > MB)> AddBufferFn
This type defines the callback to add a pre-existing native object file (e.g.
Definition: Caching.h:28
Expected< NativeObjectCache > localCache(StringRef CacheDirectoryPath, AddBufferFn AddBuffer)
Create a local file system cache which uses the given cache directory and file callback.
Definition: Caching.cpp:30
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:48