BackendUtil.h source code [clang_source_code/include/clang/CodeGen/BackendUtil.h]

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	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
49	llvm::Expected<llvm::BitcodeModule>
50	FindThinLTOModule(llvm::MemoryBufferRef MBRef);
51	llvm::BitcodeModule *
52	FindThinLTOModule(llvm::MutableArrayRef<llvm::BitcodeModule> BMs);
53	}
54
55	#endif
56

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