forked from OSchip/llvm-project
66 lines
2.6 KiB
C++
66 lines
2.6 KiB
C++
//===-- PPCMachineFunctionInfo.cpp - Private data used for PowerPC --------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "PPCMachineFunctionInfo.h"
|
|
#include "llvm/ADT/Twine.h"
|
|
#include "llvm/IR/DataLayout.h"
|
|
#include "llvm/MC/MCContext.h"
|
|
#include "llvm/Support/CommandLine.h"
|
|
|
|
using namespace llvm;
|
|
static cl::opt<bool> PPCDisableNonVolatileCR(
|
|
"ppc-disable-non-volatile-cr",
|
|
cl::desc("Disable the use of non-volatile CR register fields"),
|
|
cl::init(false), cl::Hidden);
|
|
|
|
void PPCFunctionInfo::anchor() {}
|
|
PPCFunctionInfo::PPCFunctionInfo(const MachineFunction &MF)
|
|
: DisableNonVolatileCR(PPCDisableNonVolatileCR) {}
|
|
|
|
MCSymbol *PPCFunctionInfo::getPICOffsetSymbol(MachineFunction &MF) const {
|
|
const DataLayout &DL = MF.getDataLayout();
|
|
return MF.getContext().getOrCreateSymbol(Twine(DL.getPrivateGlobalPrefix()) +
|
|
Twine(MF.getFunctionNumber()) +
|
|
"$poff");
|
|
}
|
|
|
|
MCSymbol *PPCFunctionInfo::getGlobalEPSymbol(MachineFunction &MF) const {
|
|
const DataLayout &DL = MF.getDataLayout();
|
|
return MF.getContext().getOrCreateSymbol(Twine(DL.getPrivateGlobalPrefix()) +
|
|
"func_gep" +
|
|
Twine(MF.getFunctionNumber()));
|
|
}
|
|
|
|
MCSymbol *PPCFunctionInfo::getLocalEPSymbol(MachineFunction &MF) const {
|
|
const DataLayout &DL = MF.getDataLayout();
|
|
return MF.getContext().getOrCreateSymbol(Twine(DL.getPrivateGlobalPrefix()) +
|
|
"func_lep" +
|
|
Twine(MF.getFunctionNumber()));
|
|
}
|
|
|
|
MCSymbol *PPCFunctionInfo::getTOCOffsetSymbol(MachineFunction &MF) const {
|
|
const DataLayout &DL = MF.getDataLayout();
|
|
return MF.getContext().getOrCreateSymbol(Twine(DL.getPrivateGlobalPrefix()) +
|
|
"func_toc" +
|
|
Twine(MF.getFunctionNumber()));
|
|
}
|
|
|
|
bool PPCFunctionInfo::isLiveInSExt(Register VReg) const {
|
|
for (const std::pair<Register, ISD::ArgFlagsTy> &LiveIn : LiveInAttrs)
|
|
if (LiveIn.first == VReg)
|
|
return LiveIn.second.isSExt();
|
|
return false;
|
|
}
|
|
|
|
bool PPCFunctionInfo::isLiveInZExt(Register VReg) const {
|
|
for (const std::pair<Register, ISD::ArgFlagsTy> &LiveIn : LiveInAttrs)
|
|
if (LiveIn.first == VReg)
|
|
return LiveIn.second.isZExt();
|
|
return false;
|
|
}
|