LLVM  10.0.0svn
ThinLTOBitcodeWriter.h
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1 //===- ThinLTOBitcodeWriter.h - Bitcode writing pass for ThinLTO ----------===//
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 pass prepares a module containing type metadata for ThinLTO by splitting
10 // it into regular and thin LTO parts if possible, and writing both parts to
11 // a multi-module bitcode file. Modules that do not contain type metadata are
12 // written unmodified as a single module.
13 //
14 //===----------------------------------------------------------------------===//
15 
16 #ifndef LLVM_TRANSFORMS_IPO_THINLTOBITCODEWRITER_H
17 #define LLVM_TRANSFORMS_IPO_THINLTOBITCODEWRITER_H
18 
19 #include <llvm/IR/PassManager.h>
21 
22 namespace llvm {
23 
25  : public PassInfoMixin<ThinLTOBitcodeWriterPass> {
26  raw_ostream &OS;
27  raw_ostream *ThinLinkOS;
28 
29 public:
30  // Writes bitcode to OS. Also write thin link file to ThinLinkOS, if
31  // it's not nullptr.
33  : OS(OS), ThinLinkOS(ThinLinkOS) {}
34 
36 };
37 
38 } // namespace llvm
39 
40 #endif
This class represents lattice values for constants.
Definition: AllocatorList.h:23
A Module instance is used to store all the information related to an LLVM module. ...
Definition: Module.h:65
A CRTP mix-in to automatically provide informational APIs needed for passes.
Definition: PassManager.h:372
A set of analyses that are preserved following a run of a transformation pass.
Definition: PassManager.h:153
PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM)
ThinLTOBitcodeWriterPass(raw_ostream &OS, raw_ostream *ThinLinkOS)
This class implements an extremely fast bulk output stream that can only output to a stream...
Definition: raw_ostream.h:45
A container for analyses that lazily runs them and caches their results.
This header defines various interfaces for pass management in LLVM.