Imported Upstream version 5.18.0.182

Former-commit-id: f9d55cf82631bfd710c387739687e5845296aea1

external/llvm/lib/Target/BPF/BPFFrameLowering.cpp

@@ -1,40 +0,0 @@
-//===-- BPFFrameLowering.cpp - BPF Frame Information ----------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file contains the BPF implementation of TargetFrameLowering class.
-//
-//===----------------------------------------------------------------------===//
-
-#include "BPFFrameLowering.h"
-#include "BPFInstrInfo.h"
-#include "BPFSubtarget.h"
-#include "llvm/CodeGen/MachineFrameInfo.h"
-#include "llvm/CodeGen/MachineFunction.h"
-#include "llvm/CodeGen/MachineInstrBuilder.h"
-#include "llvm/CodeGen/MachineRegisterInfo.h"
-
-using namespace llvm;
-
-bool BPFFrameLowering::hasFP(const MachineFunction &MF) const { return true; }
-
-void BPFFrameLowering::emitPrologue(MachineFunction &MF,
-                                    MachineBasicBlock &MBB) const {}
-
-void BPFFrameLowering::emitEpilogue(MachineFunction &MF,
-                                    MachineBasicBlock &MBB) const {}
-
-void BPFFrameLowering::determineCalleeSaves(MachineFunction &MF,
-                                            BitVector &SavedRegs,
-                                            RegScavenger *RS) const {
-  TargetFrameLowering::determineCalleeSaves(MF, SavedRegs, RS);
-  SavedRegs.reset(BPF::R6);
-  SavedRegs.reset(BPF::R7);
-  SavedRegs.reset(BPF::R8);
-  SavedRegs.reset(BPF::R9);
-}