NVPTXSubtarget.h revision 7eacad03efda36e09ebd96e95d7891cadaaa9087 
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 NVPTXSUBTARGET_H
15#define NVPTXSUBTARGET_H
16
17#include "NVPTX.h"
18#include "llvm/Target/TargetSubtargetInfo.h"
19
20#define GET_SUBTARGETINFO_HEADER
21#include "NVPTXGenSubtargetInfo.inc"
22
23#include <string>
24
25namespace llvm {
26
27class NVPTXSubtarget : public NVPTXGenSubtargetInfo {
28
29  std::string TargetName;
30  NVPTX::DrvInterface drvInterface;
31  bool Is64Bit;
32
33  // PTX version x.y is represented as 10*x+y, e.g. 3.1 == 31
34  unsigned PTXVersion;
35
36  // SM version x.y is represented as 10*x+y, e.g. 3.1 == 31
37  unsigned int SmVersion;
38
39public:
40  /// This constructor initializes the data members to match that
41  /// of the specified module.
42  ///
43  NVPTXSubtarget(const std::string &TT, const std::string &CPU,
44                 const std::string &FS, bool is64Bit);
45
46  bool hasBrkPt() const { return SmVersion >= 11; }
47  bool hasAtomRedG32() const { return SmVersion >= 11; }
48  bool hasAtomRedS32() const { return SmVersion >= 12; }
49  bool hasAtomRedG64() const { return SmVersion >= 12; }
50  bool hasAtomRedS64() const { return SmVersion >= 20; }
51  bool hasAtomRedGen32() const { return SmVersion >= 20; }
52  bool hasAtomRedGen64() const { return SmVersion >= 20; }
53  bool hasAtomAddF32() const { return SmVersion >= 20; }
54  bool hasVote() const { return SmVersion >= 12; }
55  bool hasDouble() const { return SmVersion >= 13; }
56  bool reqPTX20() const { return SmVersion >= 20; }
57  bool hasF32FTZ() const { return SmVersion >= 20; }
58  bool hasFMAF32() const { return SmVersion >= 20; }
59  bool hasFMAF64() const { return SmVersion >= 13; }
60  bool hasLDG() const { return SmVersion >= 32; }
61  bool hasLDU() const { return SmVersion >= 20; }
62  bool hasGenericLdSt() const { return SmVersion >= 20; }
63  inline bool hasHWROT32() const { return false; }
64  inline bool hasSWROT32() const {
65    return true;
66  }
67  inline bool hasROT32() const { return hasHWROT32() || hasSWROT32() ; }
68  inline bool hasROT64() const { return SmVersion >= 20; }
69
70
71  bool is64Bit() const { return Is64Bit; }
72
73  unsigned int getSmVersion() const { return SmVersion; }
74  NVPTX::DrvInterface getDrvInterface() const { return drvInterface; }
75  std::string getTargetName() const { return TargetName; }
76
77  unsigned getPTXVersion() const { return PTXVersion; }
78
79  void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
80
81  std::string getDataLayout() const {
82    const char *p;
83    if (is64Bit())
84      p = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-"
85          "f32:32:32-f64:64:64-v16:16:16-v32:32:32-v64:64:64-v128:128:128-"
86          "n16:32:64";
87    else
88      p = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-"
89          "f32:32:32-f64:64:64-v16:16:16-v32:32:32-v64:64:64-v128:128:128-"
90          "n16:32:64";
91
92    return std::string(p);
93  }
94
95};
96
97} // End llvm namespace
98
99#endif  // NVPTXSUBTARGET_H
100