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49 lines
1.7 KiB
C++
49 lines
1.7 KiB
C++
//===-- llvm/CodeGen/ParallelCG.h - Parallel code generation ----*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This header declares functions that can be used for parallel code generation.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_PARALLELCG_H
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#define LLVM_CODEGEN_PARALLELCG_H
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#include "llvm/Support/CodeGen.h"
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#include "llvm/Target/TargetMachine.h"
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#include <functional>
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namespace llvm {
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template <typename T> class ArrayRef;
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class Module;
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class TargetOptions;
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class raw_pwrite_stream;
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/// Split M into OSs.size() partitions, and generate code for each. Takes a
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/// factory function for the TargetMachine TMFactory. Writes OSs.size() output
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/// files to the output streams in OSs. The resulting output files if linked
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/// together are intended to be equivalent to the single output file that would
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/// have been code generated from M.
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///
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/// Writes bitcode for individual partitions into output streams in BCOSs, if
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/// BCOSs is not empty.
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///
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/// \returns M if OSs.size() == 1, otherwise returns std::unique_ptr<Module>().
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std::unique_ptr<Module>
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splitCodeGen(std::unique_ptr<Module> M, ArrayRef<raw_pwrite_stream *> OSs,
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ArrayRef<llvm::raw_pwrite_stream *> BCOSs,
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const std::function<std::unique_ptr<TargetMachine>()> &TMFactory,
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TargetMachine::CodeGenFileType FileType = TargetMachine::CGFT_ObjectFile,
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bool PreserveLocals = false);
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} // namespace llvm
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#endif
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