lib/Target/PowerPC/PPCMachineFunctionInfo.cpp

   1 //===-- PPCMachineFunctionInfo.cpp - Private data used for PowerPC --------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "PPCMachineFunctionInfo.h"
  10 #include "llvm/ADT/Twine.h"
  11 #include "llvm/IR/DataLayout.h"
  12 #include "llvm/MC/MCContext.h"
  13
  14 using namespace llvm;
  15
  16 void PPCFunctionInfo::anchor() {}
  17
  18 MCSymbol *PPCFunctionInfo::getPICOffsetSymbol() const {
  19   const DataLayout &DL = MF.getDataLayout();
  20   return MF.getContext().getOrCreateSymbol(Twine(DL.getPrivateGlobalPrefix()) +
  21                                            Twine(MF.getFunctionNumber()) +
  22                                            "$poff");
  23 }
  24
  25 MCSymbol *PPCFunctionInfo::getGlobalEPSymbol() const {
  26   const DataLayout &DL = MF.getDataLayout();
  27   return MF.getContext().getOrCreateSymbol(Twine(DL.getPrivateGlobalPrefix()) +
  28                                            "func_gep" +
  29                                            Twine(MF.getFunctionNumber()));
  30 }
  31
  32 MCSymbol *PPCFunctionInfo::getLocalEPSymbol() const {
  33   const DataLayout &DL = MF.getDataLayout();
  34   return MF.getContext().getOrCreateSymbol(Twine(DL.getPrivateGlobalPrefix()) +
  35                                            "func_lep" +
  36                                            Twine(MF.getFunctionNumber()));
  37 }
  38
  39 MCSymbol *PPCFunctionInfo::getTOCOffsetSymbol() const {
  40   const DataLayout &DL = MF.getDataLayout();
  41   return MF.getContext().getOrCreateSymbol(Twine(DL.getPrivateGlobalPrefix()) +
  42                                            "func_toc" +
  43                                            Twine(MF.getFunctionNumber()));
  44 }
  45
  46 bool PPCFunctionInfo::isLiveInSExt(unsigned VReg) const {
  47   for (const std::pair<unsigned, ISD::ArgFlagsTy> &LiveIn : LiveInAttrs)
  48     if (LiveIn.first == VReg)
  49       return LiveIn.second.isSExt();
  50   return false;
  51 }
  52
  53 bool PPCFunctionInfo::isLiveInZExt(unsigned VReg) const {
  54   for (const std::pair<unsigned, ISD::ArgFlagsTy> &LiveIn : LiveInAttrs)
  55     if (LiveIn.first == VReg)
  56       return LiveIn.second.isZExt();
  57   return false;
  58 }