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/IR/DataLayout.h"
23#include "llvm/Target/TargetSelectionDAGInfo.h"
24#include "llvm/Target/TargetSubtargetInfo.h"
25#include <string>
26
27#define GET_SUBTARGETINFO_HEADER
28#include "NVPTXGenSubtargetInfo.inc"
29
30namespace llvm {
31
32class 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  TargetSelectionDAGInfo 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
51public:
52  /// This constructor initializes the data members to match that
53  /// of the specified module.
54  ///
55  NVPTXSubtarget(const std::string &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 TargetSelectionDAGInfo *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