BranchIslandFactory.h revision 22add6ff3426df1a85089fe6a6e1597ee3b6f300 
1//===- BranchIslandFactory.h ----------------------------------------------===//
2//
3//                     The MCLinker Project
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9#ifndef MCLD_LD_BRANCH_ISLAND_FACTORY_H
10#define MCLD_LD_BRANCH_ISLAND_FACTORY_H
11#ifdef ENABLE_UNITTEST
12#include <gtest.h>
13#endif
14
15#include <llvm/Support/DataTypes.h>
16#include <mcld/Support/GCFactory.h>
17#include <mcld/LD/BranchIsland.h>
18
19namespace mcld
20{
21
22class Fragment;
23
24/** \class BranchIslandFactory
25 *  \brief
26 *
27 */
28class BranchIslandFactory : public GCFactory<BranchIsland, 0>
29{
30public:
31  /// ctor
32  /// @param pMaxBranchRange - the max branch range of the target backend
33  /// @param pMaxIslandSize - a predifned value (64KB here) to decide the max
34  ///                         size of the island
35  BranchIslandFactory(uint64_t pMaxBranchRange,
36                      uint64_t pMaxIslandSize = 65536U);
37
38  ~BranchIslandFactory();
39
40  /// produce - produce a island for the given fragment
41  /// @param pFragment - the fragment needs a branch island
42  BranchIsland* produce(Fragment& pFragment);
43
44  /// find - find a island for the given fragment
45  /// @param pFragment - the fragment needs a branch isladn
46  BranchIsland* find(const Fragment& pFragment);
47
48private:
49  uint64_t m_MaxBranchRange;
50  uint64_t m_MaxIslandSize;
51};
52
53} // namespace of mcld
54
55#endif
56
57