1 //=====-- NVPTXSubtarget.h - Define Subtarget for the NVPTX ---*- C++ -*--====// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file declares the NVPTX specific subclass of TargetSubtarget. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_LIB_TARGET_NVPTX_NVPTXSUBTARGET_H 15 #define LLVM_LIB_TARGET_NVPTX_NVPTXSUBTARGET_H 16 17 #include "NVPTX.h" 18 #include "NVPTXFrameLowering.h" 19 #include "NVPTXISelLowering.h" 20 #include "NVPTXInstrInfo.h" 21 #include "NVPTXRegisterInfo.h" 22 #include "llvm/CodeGen/SelectionDAGTargetInfo.h" 23 #include "llvm/IR/DataLayout.h" 24 #include "llvm/Target/TargetSubtargetInfo.h" 25 #include <string> 26 27 #define GET_SUBTARGETINFO_HEADER 28 #include "NVPTXGenSubtargetInfo.inc" 29 30 namespace llvm { 31 32 class NVPTXSubtarget : public NVPTXGenSubtargetInfo { 33 virtual void anchor(); 34 std::string TargetName; 35 36 // PTX version x.y is represented as 10*x+y, e.g. 3.1 == 31 37 unsigned PTXVersion; 38 39 // SM version x.y is represented as 10*x+y, e.g. 3.1 == 31 40 unsigned int SmVersion; 41 42 const NVPTXTargetMachine &TM; 43 NVPTXInstrInfo InstrInfo; 44 NVPTXTargetLowering TLInfo; 45 SelectionDAGTargetInfo TSInfo; 46 47 // NVPTX does not have any call stack frame, but need a NVPTX specific 48 // FrameLowering class because TargetFrameLowering is abstract. 49 NVPTXFrameLowering FrameLowering; 50 51 public: 52 /// This constructor initializes the data members to match that 53 /// of the specified module. 54 /// 55 NVPTXSubtarget(const Triple &TT, const std::string &CPU, 56 const std::string &FS, const NVPTXTargetMachine &TM); 57 58 const TargetFrameLowering *getFrameLowering() const override { 59 return &FrameLowering; 60 } 61 const NVPTXInstrInfo *getInstrInfo() const override { return &InstrInfo; } 62 const NVPTXRegisterInfo *getRegisterInfo() const override { 63 return &InstrInfo.getRegisterInfo(); 64 } 65 const NVPTXTargetLowering *getTargetLowering() const override { 66 return &TLInfo; 67 } 68 const SelectionDAGTargetInfo *getSelectionDAGInfo() const override { 69 return &TSInfo; 70 } 71 72 bool hasBrkPt() const { return SmVersion >= 11; } 73 bool hasAtomRedG32() const { return SmVersion >= 11; } 74 bool hasAtomRedS32() const { return SmVersion >= 12; } 75 bool hasAtomRedG64() const { return SmVersion >= 12; } 76 bool hasAtomRedS64() const { return SmVersion >= 20; } 77 bool hasAtomRedGen32() const { return SmVersion >= 20; } 78 bool hasAtomRedGen64() const { return SmVersion >= 20; } 79 bool hasAtomAddF32() const { return SmVersion >= 20; } 80 bool hasVote() const { return SmVersion >= 12; } 81 bool hasDouble() const { return SmVersion >= 13; } 82 bool reqPTX20() const { return SmVersion >= 20; } 83 bool hasF32FTZ() const { return SmVersion >= 20; } 84 bool hasFMAF32() const { return SmVersion >= 20; } 85 bool hasFMAF64() const { return SmVersion >= 13; } 86 bool hasLDG() const { return SmVersion >= 32; } 87 bool hasLDU() const { return ((SmVersion >= 20) && (SmVersion < 30)); } 88 bool hasGenericLdSt() const { return SmVersion >= 20; } 89 inline bool hasHWROT32() const { return SmVersion >= 32; } 90 inline bool hasSWROT32() const { 91 return ((SmVersion >= 20) && (SmVersion < 32)); 92 } 93 inline bool hasROT32() const { return hasHWROT32() || hasSWROT32(); } 94 inline bool hasROT64() const { return SmVersion >= 20; } 95 bool hasImageHandles() const; 96 97 unsigned int getSmVersion() const { return SmVersion; } 98 std::string getTargetName() const { return TargetName; } 99 100 unsigned getPTXVersion() const { return PTXVersion; } 101 102 NVPTXSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS); 103 void ParseSubtargetFeatures(StringRef CPU, StringRef FS); 104 }; 105 106 } // End llvm namespace 107 108 #endif 109
