clang  10.0.0svn
BackendUtil.h
Go to the documentation of this file.
1 //===--- BackendUtil.h - LLVM Backend Utilities -----------------*- 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_CLANG_CODEGEN_BACKENDUTIL_H
10 #define LLVM_CLANG_CODEGEN_BACKENDUTIL_H
11 
12 #include "clang/Basic/LLVM.h"
13 #include "llvm/IR/ModuleSummaryIndex.h"
14 #include <memory>
15 
16 namespace llvm {
17  class BitcodeModule;
18  template <typename T> class Expected;
19  class Module;
20  class MemoryBufferRef;
21 }
22 
23 namespace clang {
24  class DiagnosticsEngine;
25  class HeaderSearchOptions;
26  class CodeGenOptions;
27  class TargetOptions;
28  class LangOptions;
29 
31  Backend_EmitAssembly, ///< Emit native assembly files
32  Backend_EmitBC, ///< Emit LLVM bitcode files
33  Backend_EmitLL, ///< Emit human-readable LLVM assembly
34  Backend_EmitNothing, ///< Don't emit anything (benchmarking mode)
35  Backend_EmitMCNull, ///< Run CodeGen, but don't emit anything
36  Backend_EmitObj ///< Emit native object files
37  };
38 
40  const CodeGenOptions &CGOpts,
41  const TargetOptions &TOpts, const LangOptions &LOpts,
42  const llvm::DataLayout &TDesc, llvm::Module *M,
43  BackendAction Action,
44  std::unique_ptr<raw_pwrite_stream> OS);
45 
46  void EmbedBitcode(llvm::Module *M, const CodeGenOptions &CGOpts,
47  llvm::MemoryBufferRef Buf);
48 
50  FindThinLTOModule(llvm::MemoryBufferRef MBRef);
51  llvm::BitcodeModule *
53 }
54 
55 #endif
Emit human-readable LLVM assembly.
Definition: BackendUtil.h:33
Specialize PointerLikeTypeTraits to allow LazyGenerationalUpdatePtr to be placed into a PointerUnion...
Definition: Dominators.h:30
Run CodeGen, but don&#39;t emit anything.
Definition: BackendUtil.h:35
Don&#39;t emit anything (benchmarking mode)
Definition: BackendUtil.h:34
Options for controlling the target.
Definition: TargetOptions.h:26
Emit LLVM bitcode files.
Definition: BackendUtil.h:32
Keeps track of the various options that can be enabled, which controls the dialect of C or C++ that i...
Definition: LangOptions.h:49
BackendAction
Definition: BackendUtil.h:30
Forward-declares and imports various common LLVM datatypes that clang wants to use unqualified...
Concrete class used by the front-end to report problems and issues.
Definition: Diagnostic.h:149
llvm::BitcodeModule * FindThinLTOModule(llvm::MutableArrayRef< llvm::BitcodeModule > BMs)
Emit native object files.
Definition: BackendUtil.h:36
Emit native assembly files.
Definition: BackendUtil.h:31
void EmbedBitcode(llvm::Module *M, const CodeGenOptions &CGOpts, llvm::MemoryBufferRef Buf)
Dataflow Directional Tag Classes.
void EmitBackendOutput(DiagnosticsEngine &Diags, const HeaderSearchOptions &, const CodeGenOptions &CGOpts, const TargetOptions &TOpts, const LangOptions &LOpts, const llvm::DataLayout &TDesc, llvm::Module *M, BackendAction Action, std::unique_ptr< raw_pwrite_stream > OS)
CodeGenOptions - Track various options which control how the code is optimized and passed to the back...
HeaderSearchOptions - Helper class for storing options related to the initialization of the HeaderSea...