lib/CodeGen/MachineModuleInfoImpls.cpp

   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"
  17 using namespace llvm;
  18
  19 //===----------------------------------------------------------------------===//
  20 // MachineModuleInfoMachO
  21 //===----------------------------------------------------------------------===//
  22
  23 // Out of line virtual method.
  24 void MachineModuleInfoMachO::Anchor() {}
  25 void MachineModuleInfoELF::Anchor() {}
  26
  27 static int SortSymbolPair(const void *LHS, const void *RHS) {
  28   typedef std::pair<MCSymbol*, MachineModuleInfoImpl::StubValueTy> PairTy;
  29   const MCSymbol *LHSS = ((const PairTy *)LHS)->first;
  30   const MCSymbol *RHSS = ((const PairTy *)RHS)->first;
  31   return LHSS->getName().compare(RHSS->getName());
  32 }
  33
  34 /// GetSortedStubs - Return the entries from a DenseMap in a deterministic
  35 /// sorted orer.
  36 MachineModuleInfoImpl::SymbolListTy
  37 MachineModuleInfoImpl::GetSortedStubs(const DenseMap<MCSymbol*,
  38                                       MachineModuleInfoImpl::StubValueTy>&Map) {
  39   MachineModuleInfoImpl::SymbolListTy List(Map.begin(), Map.end());
  40
  41   if (!List.empty())
  42     qsort(&List[0], List.size(), sizeof(List[0]), SortSymbolPair);
  43   return List;
  44 }
  45