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f1e4600eb5
splitCodeGen does not need to take ownership of the module, as it currently clones the original module for each split operation. There is an ~4 year old fixme to change that, but until this is addressed, the function can just take a reference to the module. This makes the transition of LTOCodeGenerator to use LTOBackend a bit easier, because under some circumstances, LTOCodeGenerator needs to write the original module back after codegen. Reviewed By: tejohnson Differential Revision: https://reviews.llvm.org/D95222
44 lines
1.5 KiB
C++
44 lines
1.5 KiB
C++
//===-- llvm/CodeGen/ParallelCG.h - Parallel code generation ----*- 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 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 <functional>
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#include <memory>
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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 TargetMachine;
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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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void splitCodeGen(
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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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CodeGenFileType FileType = CGFT_ObjectFile, bool PreserveLocals = false);
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} // namespace llvm
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#endif
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