MachineModuleInfoImpls.cpp revision 203954 
1//===-- llvm/CodeGen/MachineModuleInfoImpls.cpp ---------------------------===//
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 file implements object-file format specific implementations of
11// MachineModuleInfoImpl.
12//
13//===----------------------------------------------------------------------===//
14
15#include "llvm/CodeGen/MachineModuleInfoImpls.h"
16#include "llvm/MC/MCSymbol.h"
17using namespace llvm;
18
19//===----------------------------------------------------------------------===//
20// MachineModuleInfoMachO
21//===----------------------------------------------------------------------===//
22
23// Out of line virtual method.
24void MachineModuleInfoMachO::Anchor() {}
25void MachineModuleInfoELF::Anchor() {}
26
27static int SortSymbolPair(const void *LHS, const void *RHS) {
28  const MCSymbol *LHSS =
29    ((const std::pair<MCSymbol*, MCSymbol*>*)LHS)->first;
30  const MCSymbol *RHSS =
31    ((const std::pair<MCSymbol*, MCSymbol*>*)RHS)->first;
32  return LHSS->getName().compare(RHSS->getName());
33}
34
35/// GetSortedStubs - Return the entries from a DenseMap in a deterministic
36/// sorted orer.
37MachineModuleInfoImpl::SymbolListTy
38MachineModuleInfoImpl::GetSortedStubs(const DenseMap<MCSymbol*,
39                                                     MCSymbol*> &Map) {
40  MachineModuleInfoImpl::SymbolListTy List(Map.begin(), Map.end());
41
42  if (!List.empty())
43    qsort(&List[0], List.size(), sizeof(List[0]), SortSymbolPair);
44  return List;
45}
46
47