PPCMachineFunctionInfo.cpp revision 355940 
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
14using namespace llvm;
15
16void PPCFunctionInfo::anchor() {}
17
18MCSymbol *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
25MCSymbol *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
32MCSymbol *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
39MCSymbol *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
46bool 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
53bool 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}
59