lib/Target/AVR/AVRSubtarget.cpp

   1 //===-- AVRSubtarget.cpp - AVR Subtarget Information ----------------------===//
   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 implements the AVR specific subclass of TargetSubtargetInfo.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #include "AVRSubtarget.h"
  14
  15 #include "llvm/BinaryFormat/ELF.h"
  16 #include "llvm/Support/TargetRegistry.h"
  17
  18 #include "AVR.h"
  19 #include "AVRTargetMachine.h"
  20 #include "MCTargetDesc/AVRMCTargetDesc.h"
  21
  22 #define DEBUG_TYPE "avr-subtarget"
  23
  24 #define GET_SUBTARGETINFO_TARGET_DESC
  25 #define GET_SUBTARGETINFO_CTOR
  26 #include "AVRGenSubtargetInfo.inc"
  27
  28 namespace llvm {
  29
  30 AVRSubtarget::AVRSubtarget(const Triple &TT, const std::string &CPU,
  31                            const std::string &FS, const AVRTargetMachine &TM)
  32     : AVRGenSubtargetInfo(TT, CPU, FS), InstrInfo(), FrameLowering(),
  33       TLInfo(TM, initializeSubtargetDependencies(CPU, FS, TM)), TSInfo(),
  34
  35       // Subtarget features
  36       m_hasSRAM(false), m_hasJMPCALL(false), m_hasIJMPCALL(false),
  37       m_hasEIJMPCALL(false), m_hasADDSUBIW(false), m_hasSmallStack(false),
  38       m_hasMOVW(false), m_hasLPM(false), m_hasLPMX(false),  m_hasELPM(false),
  39       m_hasELPMX(false), m_hasSPM(false), m_hasSPMX(false), m_hasDES(false),
  40       m_supportsRMW(false), m_supportsMultiplication(false), m_hasBREAK(false),
  41       m_hasTinyEncoding(false), ELFArch(false), m_FeatureSetDummy(false) {
  42   // Parse features string.
  43   ParseSubtargetFeatures(CPU, FS);
  44 }
  45
  46 AVRSubtarget &
  47 AVRSubtarget::initializeSubtargetDependencies(StringRef CPU, StringRef FS,
  48                                               const TargetMachine &TM) {
  49   // Parse features string.
  50   ParseSubtargetFeatures(CPU, FS);
  51   return *this;
  52 }
  53
  54 } // end of namespace llvm