| //===-- HexagonSubtarget.h - Define Subtarget for the Hexagon ---*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file declares the Hexagon specific subclass of TargetSubtarget. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_LIB_TARGET_HEXAGON_HEXAGONSUBTARGET_H |
| #define LLVM_LIB_TARGET_HEXAGON_HEXAGONSUBTARGET_H |
| |
| #include "HexagonFrameLowering.h" |
| #include "HexagonISelLowering.h" |
| #include "HexagonInstrInfo.h" |
| #include "HexagonSelectionDAGInfo.h" |
| #include "llvm/IR/DataLayout.h" |
| #include "llvm/Target/TargetMachine.h" |
| #include "llvm/Target/TargetSubtargetInfo.h" |
| #include <string> |
| |
| #define GET_SUBTARGETINFO_HEADER |
| #include "HexagonGenSubtargetInfo.inc" |
| |
| #define Hexagon_SMALL_DATA_THRESHOLD 8 |
| #define Hexagon_SLOTS 4 |
| |
| namespace llvm { |
| |
| class HexagonSubtarget : public HexagonGenSubtargetInfo { |
| virtual void anchor(); |
| |
| bool UseMemOps; |
| bool ModeIEEERndNear; |
| |
| public: |
| enum HexagonArchEnum { |
| V1, V2, V3, V4, V5 |
| }; |
| |
| HexagonArchEnum HexagonArchVersion; |
| private: |
| std::string CPUString; |
| const DataLayout DL; // Calculates type size & alignment. |
| HexagonInstrInfo InstrInfo; |
| HexagonTargetLowering TLInfo; |
| HexagonSelectionDAGInfo TSInfo; |
| HexagonFrameLowering FrameLowering; |
| InstrItineraryData InstrItins; |
| |
| public: |
| HexagonSubtarget(StringRef TT, StringRef CPU, StringRef FS, |
| const TargetMachine &TM); |
| |
| /// getInstrItins - Return the instruction itineraries based on subtarget |
| /// selection. |
| const InstrItineraryData *getInstrItineraryData() const override { |
| return &InstrItins; |
| } |
| const HexagonInstrInfo *getInstrInfo() const override { return &InstrInfo; } |
| const HexagonRegisterInfo *getRegisterInfo() const override { |
| return &InstrInfo.getRegisterInfo(); |
| } |
| const HexagonTargetLowering *getTargetLowering() const override { |
| return &TLInfo; |
| } |
| const HexagonFrameLowering *getFrameLowering() const override { |
| return &FrameLowering; |
| } |
| const HexagonSelectionDAGInfo *getSelectionDAGInfo() const override { |
| return &TSInfo; |
| } |
| const DataLayout *getDataLayout() const override { return &DL; } |
| |
| HexagonSubtarget &initializeSubtargetDependencies(StringRef CPU, |
| StringRef FS); |
| |
| /// ParseSubtargetFeatures - Parses features string setting specified |
| /// subtarget options. Definition of function is auto generated by tblgen. |
| void ParseSubtargetFeatures(StringRef CPU, StringRef FS); |
| |
| bool hasV2TOps () const { return HexagonArchVersion >= V2; } |
| bool hasV2TOpsOnly () const { return HexagonArchVersion == V2; } |
| bool hasV3TOps () const { return HexagonArchVersion >= V3; } |
| bool hasV3TOpsOnly () const { return HexagonArchVersion == V3; } |
| bool hasV4TOps () const { return HexagonArchVersion >= V4; } |
| bool hasV4TOpsOnly () const { return HexagonArchVersion == V4; } |
| bool useMemOps () const { return HexagonArchVersion >= V4 && UseMemOps; } |
| bool hasV5TOps () const { return HexagonArchVersion >= V5; } |
| bool hasV5TOpsOnly () const { return HexagonArchVersion == V5; } |
| bool modeIEEERndNear () const { return ModeIEEERndNear; } |
| |
| bool isSubtargetV2() const { return HexagonArchVersion == V2;} |
| const std::string &getCPUString () const { return CPUString; } |
| |
| // Threshold for small data section |
| unsigned getSmallDataThreshold() const { |
| return Hexagon_SMALL_DATA_THRESHOLD; |
| } |
| const HexagonArchEnum &getHexagonArchVersion() const { |
| return HexagonArchVersion; |
| } |
| }; |
| |
| } // end namespace llvm |
| |
| #endif |