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 
30   enum BackendAction {
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 
39   void EmitBackendOutput(DiagnosticsEngine &Diags, const HeaderSearchOptions &,
40                          const CodeGenOptions &CGOpts,
41                          const TargetOptions &TOpts, const LangOptions &LOpts,
42                          StringRef TDesc, llvm::Module *M, BackendAction Action,
43                          std::unique_ptr<raw_pwrite_stream> OS);
44 
45   void EmbedBitcode(llvm::Module *M, const CodeGenOptions &CGOpts,
46                     llvm::MemoryBufferRef Buf);
47 
48   void EmbedObject(llvm::Module *M, const CodeGenOptions &CGOpts,
49                    DiagnosticsEngine &Diags);
50 }
51 
52 #endif
53