1 //===-- NVPTX.h - Top-level interface for NVPTX representation --*- 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 contains the entry points for global functions defined in
11 // the LLVM NVPTX back-end.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #ifndef LLVM_LIB_TARGET_NVPTX_NVPTX_H
16 #define LLVM_LIB_TARGET_NVPTX_NVPTX_H
17 
18 #include "MCTargetDesc/NVPTXBaseInfo.h"
19 #include "llvm/ADT/StringMap.h"
20 #include "llvm/IR/Module.h"
21 #include "llvm/IR/Value.h"
22 #include "llvm/Support/ErrorHandling.h"
23 #include "llvm/Target/TargetMachine.h"
24 #include <cassert>
25 #include <iosfwd>
26 
27 namespace llvm {
28 class NVPTXTargetMachine;
29 class FunctionPass;
30 class MachineFunctionPass;
31 class formatted_raw_ostream;
32 
33 namespace NVPTXCC {
34 enum CondCodes {
35   EQ,
36   NE,
37   LT,
38   LE,
39   GT,
40   GE
41 };
42 }
43 
44 FunctionPass *createNVPTXISelDag(NVPTXTargetMachine &TM,
45                                  llvm::CodeGenOpt::Level OptLevel);
46 ModulePass *createNVPTXAssignValidGlobalNamesPass();
47 ModulePass *createGenericToNVVMPass();
48 FunctionPass *createNVVMIntrRangePass(unsigned int SmVersion);
49 FunctionPass *createNVVMReflectPass(unsigned int SmVersion);
50 MachineFunctionPass *createNVPTXPrologEpilogPass();
51 MachineFunctionPass *createNVPTXReplaceImageHandlesPass();
52 FunctionPass *createNVPTXImageOptimizerPass();
53 FunctionPass *createNVPTXLowerArgsPass(const NVPTXTargetMachine *TM);
54 BasicBlockPass *createNVPTXLowerAllocaPass();
55 MachineFunctionPass *createNVPTXPeephole();
56 MachineFunctionPass *createNVPTXProxyRegErasurePass();
57 
58 Target &getTheNVPTXTarget32();
59 Target &getTheNVPTXTarget64();
60 
61 namespace NVPTX {
62 enum DrvInterface {
63   NVCL,
64   CUDA
65 };
66 
67 // A field inside TSFlags needs a shift and a mask. The usage is
68 // always as follows :
69 // ((TSFlags & fieldMask) >> fieldShift)
70 // The enum keeps the mask, the shift, and all valid values of the
71 // field in one place.
72 enum VecInstType {
73   VecInstTypeShift = 0,
74   VecInstTypeMask = 0xF,
75 
76   VecNOP = 0,
77   VecLoad = 1,
78   VecStore = 2,
79   VecBuild = 3,
80   VecShuffle = 4,
81   VecExtract = 5,
82   VecInsert = 6,
83   VecDest = 7,
84   VecOther = 15
85 };
86 
87 enum SimpleMove {
88   SimpleMoveMask = 0x10,
89   SimpleMoveShift = 4
90 };
91 enum LoadStore {
92   isLoadMask = 0x20,
93   isLoadShift = 5,
94   isStoreMask = 0x40,
95   isStoreShift = 6
96 };
97 
98 namespace PTXLdStInstCode {
99 enum AddressSpace {
100   GENERIC = 0,
101   GLOBAL = 1,
102   CONSTANT = 2,
103   SHARED = 3,
104   PARAM = 4,
105   LOCAL = 5
106 };
107 enum FromType {
108   Unsigned = 0,
109   Signed,
110   Float,
111   Untyped
112 };
113 enum VecType {
114   Scalar = 1,
115   V2 = 2,
116   V4 = 4
117 };
118 }
119 
120 /// PTXCvtMode - Conversion code enumeration
121 namespace PTXCvtMode {
122 enum CvtMode {
123   NONE = 0,
124   RNI,
125   RZI,
126   RMI,
127   RPI,
128   RN,
129   RZ,
130   RM,
131   RP,
132 
133   BASE_MASK = 0x0F,
134   FTZ_FLAG = 0x10,
135   SAT_FLAG = 0x20
136 };
137 }
138 
139 /// PTXCmpMode - Comparison mode enumeration
140 namespace PTXCmpMode {
141 enum CmpMode {
142   EQ = 0,
143   NE,
144   LT,
145   LE,
146   GT,
147   GE,
148   LO,
149   LS,
150   HI,
151   HS,
152   EQU,
153   NEU,
154   LTU,
155   LEU,
156   GTU,
157   GEU,
158   NUM,
159   // NAN is a MACRO
160   NotANumber,
161 
162   BASE_MASK = 0xFF,
163   FTZ_FLAG = 0x100
164 };
165 }
166 }
167 } // end namespace llvm;
168 
169 // Defines symbolic names for NVPTX registers.  This defines a mapping from
170 // register name to register number.
171 #define GET_REGINFO_ENUM
172 #include "NVPTXGenRegisterInfo.inc"
173 
174 // Defines symbolic names for the NVPTX instructions.
175 #define GET_INSTRINFO_ENUM
176 #include "NVPTXGenInstrInfo.inc"
177 
178 #endif
179