llvm/lib/Target/VE/VESubtarget.h

   1 //===-- VESubtarget.h - Define Subtarget for the VE -------------*- 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 VE specific subclass of TargetSubtargetInfo.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #ifndef LLVM_LIB_TARGET_VE_VESUBTARGET_H
  14 #define LLVM_LIB_TARGET_VE_VESUBTARGET_H
  15
  16 #include "VEFrameLowering.h"
  17 #include "VEISelLowering.h"
  18 #include "VEInstrInfo.h"
  19 #include "llvm/CodeGen/SelectionDAGTargetInfo.h"
  20 #include "llvm/CodeGen/TargetFrameLowering.h"
  21 #include "llvm/CodeGen/TargetSubtargetInfo.h"
  22 #include "llvm/IR/DataLayout.h"
  23 #include <string>
  24
  25 #define GET_SUBTARGETINFO_HEADER
  26 #include "VEGenSubtargetInfo.inc"
  27
  28 namespace llvm {
  29 class StringRef;
  30
  31 class VESubtarget : public VEGenSubtargetInfo {
  32   Triple TargetTriple;
  33   virtual void anchor();
  34
  35   /// Features {
  36
  37   // Emit VPU instructions
  38   bool EnableVPU;
  39
  40   /// } Features
  41
  42   VEInstrInfo InstrInfo;
  43   VETargetLowering TLInfo;
  44   SelectionDAGTargetInfo TSInfo;
  45   VEFrameLowering FrameLowering;
  46
  47 public:
  48   VESubtarget(const Triple &TT, const std::string &CPU, const std::string &FS,
  49               const TargetMachine &TM);
  50
  51   const VEInstrInfo *getInstrInfo() const override { return &InstrInfo; }
  52   const VEFrameLowering *getFrameLowering() const override {
  53     return &FrameLowering;
  54   }
  55   const VERegisterInfo *getRegisterInfo() const override {
  56     return &InstrInfo.getRegisterInfo();
  57   }
  58   const VETargetLowering *getTargetLowering() const override { return &TLInfo; }
  59   const SelectionDAGTargetInfo *getSelectionDAGInfo() const override {
  60     return &TSInfo;
  61   }
  62
  63   bool enableMachineScheduler() const override;
  64
  65   bool enableVPU() const { return EnableVPU; }
  66
  67   /// ParseSubtargetFeatures - Parses features string setting specified
  68   /// subtarget options.  Definition of function is auto generated by tblgen.
  69   void ParseSubtargetFeatures(StringRef CPU, StringRef TuneCPU, StringRef FS);
  70   VESubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS);
  71
  72   /// Given a actual stack size as determined by FrameInfo, this function
  73   /// returns adjusted framesize which includes space for RSA, return
  74   /// address, and frame poitner.
  75   uint64_t getAdjustedFrameSize(uint64_t FrameSize) const;
  76
  77   /// Get the size of RSA, return address, and frame pointer as described
  78   /// in VEFrameLowering.cpp.
  79   unsigned getRsaSize(void) const { return 176; };
  80
  81   bool isTargetLinux() const { return TargetTriple.isOSLinux(); }
  82 };
  83
  84 } // namespace llvm
  85
  86 #endif