1 //=====-- NVPTXSubtarget.h - Define Subtarget for the NVPTX ---*- C++ -*--====//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file declares the NVPTX specific subclass of TargetSubtarget.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_LIB_TARGET_NVPTX_NVPTXSUBTARGET_H
15 #define LLVM_LIB_TARGET_NVPTX_NVPTXSUBTARGET_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"
27 #define GET_SUBTARGETINFO_HEADER
28 #include "NVPTXGenSubtargetInfo.inc"
32 class NVPTXSubtarget : public NVPTXGenSubtargetInfo {
33 virtual void anchor();
34 std::string TargetName;
36 // PTX version x.y is represented as 10*x+y, e.g. 3.1 == 31
39 // SM version x.y is represented as 10*x+y, e.g. 3.1 == 31
40 unsigned int SmVersion;
42 const NVPTXTargetMachine &TM;
43 NVPTXInstrInfo InstrInfo;
44 NVPTXTargetLowering TLInfo;
45 SelectionDAGTargetInfo TSInfo;
47 // NVPTX does not have any call stack frame, but need a NVPTX specific
48 // FrameLowering class because TargetFrameLowering is abstract.
49 NVPTXFrameLowering FrameLowering;
52 // Processor supports scoped atomic operations.
56 /// This constructor initializes the data members to match that
57 /// of the specified module.
59 NVPTXSubtarget(const Triple &TT, const std::string &CPU,
60 const std::string &FS, const NVPTXTargetMachine &TM);
62 const TargetFrameLowering *getFrameLowering() const override {
63 return &FrameLowering;
65 const NVPTXInstrInfo *getInstrInfo() const override { return &InstrInfo; }
66 const NVPTXRegisterInfo *getRegisterInfo() const override {
67 return &InstrInfo.getRegisterInfo();
69 const NVPTXTargetLowering *getTargetLowering() const override {
72 const SelectionDAGTargetInfo *getSelectionDAGInfo() const override {
76 bool hasBrkPt() const { return SmVersion >= 11; }
77 bool hasAtomRedG32() const { return SmVersion >= 11; }
78 bool hasAtomRedS32() const { return SmVersion >= 12; }
79 bool hasAtomRedG64() const { return SmVersion >= 12; }
80 bool hasAtomRedS64() const { return SmVersion >= 20; }
81 bool hasAtomRedGen32() const { return SmVersion >= 20; }
82 bool hasAtomRedGen64() const { return SmVersion >= 20; }
83 bool hasAtomAddF32() const { return SmVersion >= 20; }
84 bool hasAtomAddF64() const { return SmVersion >= 60; }
85 bool hasAtomScope() const { return HasAtomScope; }
86 bool hasAtomBitwise64() const { return SmVersion >= 32; }
87 bool hasAtomMinMax64() const { return SmVersion >= 32; }
88 bool hasVote() const { return SmVersion >= 12; }
89 bool hasDouble() const { return SmVersion >= 13; }
90 bool reqPTX20() const { return SmVersion >= 20; }
91 bool hasF32FTZ() const { return SmVersion >= 20; }
92 bool hasFMAF32() const { return SmVersion >= 20; }
93 bool hasFMAF64() const { return SmVersion >= 13; }
94 bool hasLDG() const { return SmVersion >= 32; }
95 bool hasLDU() const { return ((SmVersion >= 20) && (SmVersion < 30)); }
96 bool hasGenericLdSt() const { return SmVersion >= 20; }
97 inline bool hasHWROT32() const { return SmVersion >= 32; }
98 inline bool hasSWROT32() const {
99 return ((SmVersion >= 20) && (SmVersion < 32));
101 inline bool hasROT32() const { return hasHWROT32() || hasSWROT32(); }
102 inline bool hasROT64() const { return SmVersion >= 20; }
103 bool hasImageHandles() const;
104 bool hasFP16Math() const { return SmVersion >= 53; }
105 bool allowFP16Math() const;
107 unsigned int getSmVersion() const { return SmVersion; }
108 std::string getTargetName() const { return TargetName; }
110 unsigned getPTXVersion() const { return PTXVersion; }
112 NVPTXSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS);
113 void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
116 } // End llvm namespace