llvm/lib/Target/Xtensa/XtensaSubtarget.h

   1 //===-- XtensaSubtarget.h - Define Subtarget for the Xtensa ----*- 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 declares the Xtensa specific subclass of TargetSubtargetInfo.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #ifndef LLVM_LIB_TARGET_XTENSA_XTENSASUBTARGET_H
  14 #define LLVM_LIB_TARGET_XTENSA_XTENSASUBTARGET_H
  15
  16 #include "XtensaFrameLowering.h"
  17 #include "XtensaISelLowering.h"
  18 #include "XtensaInstrInfo.h"
  19 #include "XtensaRegisterInfo.h"
  20 #include "llvm/CodeGen/SelectionDAGTargetInfo.h"
  21 #include "llvm/CodeGen/TargetSubtargetInfo.h"
  22 #include "llvm/IR/DataLayout.h"
  23 #include "llvm/Target/TargetMachine.h"
  24
  25 #define GET_SUBTARGETINFO_HEADER
  26 #include "XtensaGenSubtargetInfo.inc"
  27
  28 namespace llvm {
  29 class StringRef;
  30
  31 class XtensaSubtarget : public XtensaGenSubtargetInfo {
  32 private:
  33   const Triple &TargetTriple;
  34   XtensaInstrInfo InstrInfo;
  35   XtensaTargetLowering TLInfo;
  36   SelectionDAGTargetInfo TSInfo;
  37   XtensaFrameLowering FrameLowering;
  38
  39   // Enabled Xtensa Density extension
  40   bool HasDensity;
  41
  42   XtensaSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS);
  43
  44 public:
  45   XtensaSubtarget(const Triple &TT, StringRef CPU, StringRef FS,
  46                   const TargetMachine &TM);
  47
  48   const Triple &getTargetTriple() const { return TargetTriple; }
  49
  50   const TargetFrameLowering *getFrameLowering() const override {
  51     return &FrameLowering;
  52   }
  53   const XtensaInstrInfo *getInstrInfo() const override { return &InstrInfo; }
  54   const XtensaRegisterInfo *getRegisterInfo() const override {
  55     return &InstrInfo.getRegisterInfo();
  56   }
  57
  58   const XtensaTargetLowering *getTargetLowering() const override {
  59     return &TLInfo;
  60   }
  61   const SelectionDAGTargetInfo *getSelectionDAGInfo() const override {
  62     return &TSInfo;
  63   }
  64
  65   bool hasDensity() const { return HasDensity; }
  66
  67   // Automatically generated by tblgen.
  68   void ParseSubtargetFeatures(StringRef CPU, StringRef TuneCPU, StringRef FS);
  69 };
  70 } // end namespace llvm
  71
  72 #endif /* LLVM_LIB_TARGET_XTENSA_XTENSASUBTARGET_H */