diff options
| author | Stephen Hines <srhines@google.com> | 2019-07-02 16:25:20 -0700 |
|---|---|---|
| committer | Ali B <abittin@gmail.com> | 2019-07-05 19:33:16 +0300 |
| commit | 9afee4e65dc5f9f5eb371683729ff67b8df81d03 (patch) | |
| tree | 4cf241d6c9044f91ee8c06e6920174d06f8de0b6 /clang-r353983e/include/llvm/CodeGen/MIRParser | |
| parent | 2f19bd722c4c825320d1511c1ed83161b7f95d51 (diff) | |
clang 9.0.5 (based on r353983e) from build 5696680.
Bug: http://b/135931688
Bug: http://b/136008926
Test: N/A
Change-Id: I922d17410047d2e2df4625615352c588ee71b203
Diffstat (limited to 'clang-r353983e/include/llvm/CodeGen/MIRParser')
| -rw-r--r-- | clang-r353983e/include/llvm/CodeGen/MIRParser/MIRParser.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/clang-r353983e/include/llvm/CodeGen/MIRParser/MIRParser.h b/clang-r353983e/include/llvm/CodeGen/MIRParser/MIRParser.h new file mode 100644 index 00000000..6a04e48e --- /dev/null +++ b/clang-r353983e/include/llvm/CodeGen/MIRParser/MIRParser.h @@ -0,0 +1,80 @@ +//===- MIRParser.h - MIR serialization format parser ------------*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// This MIR serialization library is currently a work in progress. It can't +// serialize machine functions at this time. +// +// This file declares the functions that parse the MIR serialization format +// files. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CODEGEN_MIRPARSER_MIRPARSER_H +#define LLVM_CODEGEN_MIRPARSER_MIRPARSER_H + +#include "llvm/IR/Module.h" +#include "llvm/Support/MemoryBuffer.h" +#include <memory> + +namespace llvm { + +class StringRef; +class MIRParserImpl; +class MachineModuleInfo; +class SMDiagnostic; + +/// This class initializes machine functions by applying the state loaded from +/// a MIR file. +class MIRParser { + std::unique_ptr<MIRParserImpl> Impl; + +public: + MIRParser(std::unique_ptr<MIRParserImpl> Impl); + MIRParser(const MIRParser &) = delete; + ~MIRParser(); + + /// Parses the optional LLVM IR module in the MIR file. + /// + /// A new, empty module is created if the LLVM IR isn't present. + /// \returns nullptr if a parsing error occurred. + std::unique_ptr<Module> parseIRModule(); + + /// Parses MachineFunctions in the MIR file and add them to the given + /// MachineModuleInfo \p MMI. + /// + /// \returns true if an error occurred. + bool parseMachineFunctions(Module &M, MachineModuleInfo &MMI); +}; + +/// This function is the main interface to the MIR serialization format parser. +/// +/// It reads in a MIR file and returns a MIR parser that can parse the embedded +/// LLVM IR module and initialize the machine functions by parsing the machine +/// function's state. +/// +/// \param Filename - The name of the file to parse. +/// \param Error - Error result info. +/// \param Context - Context which will be used for the parsed LLVM IR module. +std::unique_ptr<MIRParser> createMIRParserFromFile(StringRef Filename, + SMDiagnostic &Error, + LLVMContext &Context); + +/// This function is another interface to the MIR serialization format parser. +/// +/// It returns a MIR parser that works with the given memory buffer and that can +/// parse the embedded LLVM IR module and initialize the machine functions by +/// parsing the machine function's state. +/// +/// \param Contents - The MemoryBuffer containing the machine level IR. +/// \param Context - Context which will be used for the parsed LLVM IR module. +std::unique_ptr<MIRParser> +createMIRParser(std::unique_ptr<MemoryBuffer> Contents, LLVMContext &Context); + +} // end namespace llvm + +#endif // LLVM_CODEGEN_MIRPARSER_MIRPARSER_H |
