lib/Target/PowerPC/PPCMachineFunctionInfo.cpp

   1 //===-- PPCMachineFunctionInfo.cpp - Private data used for PowerPC --------===//
   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 #include "PPCMachineFunctionInfo.h"
  11 #include "llvm/ADT/Twine.h"
  12 #include "llvm/IR/DataLayout.h"
  13 #include "llvm/MC/MCContext.h"
  14
  15 using namespace llvm;
  16
  17 void PPCFunctionInfo::anchor() {}
  18
  19 MCSymbol *PPCFunctionInfo::getPICOffsetSymbol() const {
  20   const DataLayout &DL = MF.getDataLayout();
  21   return MF.getContext().getOrCreateSymbol(Twine(DL.getPrivateGlobalPrefix()) +
  22                                            Twine(MF.getFunctionNumber()) +
  23                                            "$poff");
  24 }
  25
  26 MCSymbol *PPCFunctionInfo::getGlobalEPSymbol() const {
  27   const DataLayout &DL = MF.getDataLayout();
  28   return MF.getContext().getOrCreateSymbol(Twine(DL.getPrivateGlobalPrefix()) +
  29                                            "func_gep" +
  30                                            Twine(MF.getFunctionNumber()));
  31 }
  32
  33 MCSymbol *PPCFunctionInfo::getLocalEPSymbol() const {
  34   const DataLayout &DL = MF.getDataLayout();
  35   return MF.getContext().getOrCreateSymbol(Twine(DL.getPrivateGlobalPrefix()) +
  36                                            "func_lep" +
  37                                            Twine(MF.getFunctionNumber()));
  38 }
  39
  40 MCSymbol *PPCFunctionInfo::getTOCOffsetSymbol() const {
  41   const DataLayout &DL = MF.getDataLayout();
  42   return MF.getContext().getOrCreateSymbol(Twine(DL.getPrivateGlobalPrefix()) +
  43                                            "func_toc" +
  44                                            Twine(MF.getFunctionNumber()));
  45 }
  46
  47 bool PPCFunctionInfo::isLiveInSExt(unsigned VReg) const {
  48   for (const std::pair<unsigned, ISD::ArgFlagsTy> &LiveIn : LiveInAttrs)
  49     if (LiveIn.first == VReg)
  50       return LiveIn.second.isSExt();
  51   return false;
  52 }
  53
  54 bool PPCFunctionInfo::isLiveInZExt(unsigned VReg) const {
  55   for (const std::pair<unsigned, ISD::ArgFlagsTy> &LiveIn : LiveInAttrs)
  56     if (LiveIn.first == VReg)
  57       return LiveIn.second.isZExt();
  58   return false;
  59 }