1 //===-- DirectXRegisterInfo.cpp - RegisterInfo for DirectX -*- C++ ------*-===// 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 // This file defines the DirectX specific subclass of TargetRegisterInfo. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #include "DirectXRegisterInfo.h" 14 #include "DirectXFrameLowering.h" 15 #include "MCTargetDesc/DirectXMCTargetDesc.h" 16 #include "llvm/CodeGen/MachineFunction.h" 17 #include "llvm/CodeGen/TargetSubtargetInfo.h" 18 19 #define GET_REGINFO_TARGET_DESC 20 #include "DirectXGenRegisterInfo.inc" 21 22 using namespace llvm; 23 24 DirectXRegisterInfo::~DirectXRegisterInfo() {} 25 26 const MCPhysReg * 27 DirectXRegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const { 28 return nullptr; 29 } 30 BitVector 31 DirectXRegisterInfo::getReservedRegs(const MachineFunction &MF) const { 32 return BitVector(getNumRegs()); 33 } 34 35 bool DirectXRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II, 36 int SPAdj, unsigned FIOperandNum, 37 RegScavenger *RS) const { 38 return false; 39 } 40 41 // Debug information queries. 42 Register 43 DirectXRegisterInfo::getFrameRegister(const MachineFunction &MF) const { 44 return Register(); 45 } 46