LLVM  6.0.0svn
ParallelCG.h
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1 //===-- llvm/CodeGen/ParallelCG.h - Parallel code generation ----*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This header declares functions that can be used for parallel code generation.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_CODEGEN_PARALLELCG_H
15 #define LLVM_CODEGEN_PARALLELCG_H
16 
17 #include "llvm/Support/CodeGen.h"
19 
20 #include <functional>
21 
22 namespace llvm {
23 
24 template <typename T> class ArrayRef;
25 class Module;
26 class TargetOptions;
27 class raw_pwrite_stream;
28 
29 /// Split M into OSs.size() partitions, and generate code for each. Takes a
30 /// factory function for the TargetMachine TMFactory. Writes OSs.size() output
31 /// files to the output streams in OSs. The resulting output files if linked
32 /// together are intended to be equivalent to the single output file that would
33 /// have been code generated from M.
34 ///
35 /// Writes bitcode for individual partitions into output streams in BCOSs, if
36 /// BCOSs is not empty.
37 ///
38 /// \returns M if OSs.size() == 1, otherwise returns std::unique_ptr<Module>().
39 std::unique_ptr<Module>
40 splitCodeGen(std::unique_ptr<Module> M, ArrayRef<raw_pwrite_stream *> OSs,
41  ArrayRef<llvm::raw_pwrite_stream *> BCOSs,
42  const std::function<std::unique_ptr<TargetMachine>()> &TMFactory,
44  bool PreserveLocals = false);
45 
46 } // namespace llvm
47 
48 #endif
Compute iterated dominance frontiers using a linear time algorithm.
Definition: AllocatorList.h:24
std::unique_ptr< Module > splitCodeGen(std::unique_ptr< Module > M, ArrayRef< raw_pwrite_stream *> OSs, ArrayRef< llvm::raw_pwrite_stream *> BCOSs, const std::function< std::unique_ptr< TargetMachine >()> &TMFactory, TargetMachine::CodeGenFileType FT=TargetMachine::CGFT_ObjectFile, bool PreserveLocals=false)
Split M into OSs.size() partitions, and generate code for each.
Definition: ParallelCG.cpp:39
print Print MemDeps of function
CodeGenFileType
These enums are meant to be passed into addPassesToEmitFile to indicate what type of file to emit...