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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351636 91177308-0d34-0410-b5e6-96231b3b80d8
81 lines
2.9 KiB
C++
81 lines
2.9 KiB
C++
//===- MIRParser.h - MIR serialization format parser ------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This MIR serialization library is currently a work in progress. It can't
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// serialize machine functions at this time.
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//
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// This file declares the functions that parse the MIR serialization format
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// files.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_MIRPARSER_MIRPARSER_H
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#define LLVM_CODEGEN_MIRPARSER_MIRPARSER_H
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#include "llvm/IR/Module.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include <memory>
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namespace llvm {
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class StringRef;
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class MIRParserImpl;
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class MachineModuleInfo;
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class SMDiagnostic;
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/// This class initializes machine functions by applying the state loaded from
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/// a MIR file.
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class MIRParser {
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std::unique_ptr<MIRParserImpl> Impl;
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public:
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MIRParser(std::unique_ptr<MIRParserImpl> Impl);
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MIRParser(const MIRParser &) = delete;
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~MIRParser();
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/// Parses the optional LLVM IR module in the MIR file.
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///
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/// A new, empty module is created if the LLVM IR isn't present.
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/// \returns nullptr if a parsing error occurred.
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std::unique_ptr<Module> parseIRModule();
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/// Parses MachineFunctions in the MIR file and add them to the given
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/// MachineModuleInfo \p MMI.
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///
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/// \returns true if an error occurred.
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bool parseMachineFunctions(Module &M, MachineModuleInfo &MMI);
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};
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/// This function is the main interface to the MIR serialization format parser.
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///
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/// It reads in a MIR file and returns a MIR parser that can parse the embedded
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/// LLVM IR module and initialize the machine functions by parsing the machine
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/// function's state.
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///
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/// \param Filename - The name of the file to parse.
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/// \param Error - Error result info.
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/// \param Context - Context which will be used for the parsed LLVM IR module.
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std::unique_ptr<MIRParser> createMIRParserFromFile(StringRef Filename,
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SMDiagnostic &Error,
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LLVMContext &Context);
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/// This function is another interface to the MIR serialization format parser.
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///
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/// It returns a MIR parser that works with the given memory buffer and that can
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/// parse the embedded LLVM IR module and initialize the machine functions by
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/// parsing the machine function's state.
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///
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/// \param Contents - The MemoryBuffer containing the machine level IR.
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/// \param Context - Context which will be used for the parsed LLVM IR module.
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std::unique_ptr<MIRParser>
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createMIRParser(std::unique_ptr<MemoryBuffer> Contents, LLVMContext &Context);
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} // end namespace llvm
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#endif // LLVM_CODEGEN_MIRPARSER_MIRPARSER_H
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