lib/Target/PTX/PTX.td

   1 //===- PTX.td - Describe the PTX Target Machine ---------------*- tblgen -*-==//
   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 // This is the top level entry point for the PTX target.
  10 //===----------------------------------------------------------------------===//
  11
  12 //===----------------------------------------------------------------------===//
  13 // Target-independent interfaces
  14 //===----------------------------------------------------------------------===//
  15
  16 include "llvm/Target/Target.td"
  17
  18 //===----------------------------------------------------------------------===//
  19 // Subtarget Features.
  20 //===----------------------------------------------------------------------===//
  21
  22 //===- Architectural Features ---------------------------------------------===//
  23
  24 def FeatureDouble : SubtargetFeature<"double", "SupportsDouble", "true",
  25                                      "Do not demote .f64 to .f32">;
  26
  27 //===- PTX Version --------------------------------------------------------===//
  28
  29 def FeaturePTX14 : SubtargetFeature<"ptx14", "PTXVersion", "PTX_VERSION_1_4",
  30                                     "Use PTX Language Version 1.4">;
  31
  32 def FeaturePTX20 : SubtargetFeature<"ptx20", "PTXVersion", "PTX_VERSION_2_0",
  33                                     "Use PTX Language Version 2.0",
  34                                     [FeaturePTX14]>;
  35
  36 def FeaturePTX21 : SubtargetFeature<"ptx21", "PTXVersion", "PTX_VERSION_2_1",
  37                                     "Use PTX Language Version 2.1",
  38                                     [FeaturePTX20]>;
  39
  40 //===- PTX Shader Model ---------------------------------------------------===//
  41
  42 def FeatureSM10 : SubtargetFeature<"sm10", "PTXShaderModel", "PTX_SM_1_0",
  43                                    "Enable Shader Model 1.0 compliance">;
  44 def FeatureSM13 : SubtargetFeature<"sm13", "PTXShaderModel", "PTX_SM_1_3",
  45                                    "Enable Shader Model 1.3 compliance",
  46                                    [FeatureSM10, FeatureDouble]>;
  47 def FeatureSM20 : SubtargetFeature<"sm20", "PTXShaderModel", "PTX_SM_2_0",
  48                                    "Enable Shader Model 2.0 compliance",
  49                                    [FeatureSM13]>;
  50
  51 //===----------------------------------------------------------------------===//
  52 // PTX supported processors.
  53 //===----------------------------------------------------------------------===//
  54
  55 class Proc<string Name, list<SubtargetFeature> Features>
  56   : Processor<Name, NoItineraries, Features>;
  57
  58 def : Proc<"generic", []>;
  59
  60 //===----------------------------------------------------------------------===//
  61 // Register File Description
  62 //===----------------------------------------------------------------------===//
  63
  64 include "PTXRegisterInfo.td"
  65
  66 //===----------------------------------------------------------------------===//
  67 // Instruction Descriptions
  68 //===----------------------------------------------------------------------===//
  69
  70 include "PTXInstrInfo.td"
  71
  72 def PTXInstrInfo : InstrInfo;
  73
  74 //===----------------------------------------------------------------------===//
  75 // Target Declaration
  76 //===----------------------------------------------------------------------===//
  77
  78 def PTX : Target {
  79   let InstructionSet = PTXInstrInfo;
  80 }