contrib/llvm/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 def FeatureNoFMA  : SubtargetFeature<"no-fma","SupportsFMA", "false",
  28                                      "Disable Fused-Multiply Add">;
  29
  30 //===- PTX Version --------------------------------------------------------===//
  31
  32 def FeaturePTX20 : SubtargetFeature<"ptx20", "PTXVersion", "PTX_VERSION_2_0",
  33                                     "Use PTX Language Version 2.0">;
  34
  35 def FeaturePTX21 : SubtargetFeature<"ptx21", "PTXVersion", "PTX_VERSION_2_1",
  36                                     "Use PTX Language Version 2.1">;
  37
  38 def FeaturePTX22 : SubtargetFeature<"ptx22", "PTXVersion", "PTX_VERSION_2_2",
  39                                     "Use PTX Language Version 2.2">;
  40
  41 def FeaturePTX23 : SubtargetFeature<"ptx23", "PTXVersion", "PTX_VERSION_2_3",
  42                                     "Use PTX Language Version 2.3">;
  43
  44 //===- PTX Target ---------------------------------------------------------===//
  45
  46 def FeatureSM10 : SubtargetFeature<"sm10", "PTXTarget", "PTX_SM_1_0",
  47                                    "Use Shader Model 1.0">;
  48 def FeatureSM11 : SubtargetFeature<"sm11", "PTXTarget", "PTX_SM_1_1",
  49                                    "Use Shader Model 1.1">;
  50 def FeatureSM12 : SubtargetFeature<"sm12", "PTXTarget", "PTX_SM_1_2",
  51                                    "Use Shader Model 1.2">;
  52 def FeatureSM13 : SubtargetFeature<"sm13", "PTXTarget", "PTX_SM_1_3",
  53                                    "Use Shader Model 1.3">;
  54 def FeatureSM20 : SubtargetFeature<"sm20", "PTXTarget", "PTX_SM_2_0",
  55                                    "Use Shader Model 2.0", [FeatureDouble]>;
  56 def FeatureSM21 : SubtargetFeature<"sm21", "PTXTarget", "PTX_SM_2_1",
  57                                    "Use Shader Model 2.1", [FeatureDouble]>;
  58 def FeatureSM22 : SubtargetFeature<"sm22", "PTXTarget", "PTX_SM_2_2",
  59                                    "Use Shader Model 2.2", [FeatureDouble]>;
  60 def FeatureSM23 : SubtargetFeature<"sm23", "PTXTarget", "PTX_SM_2_3",
  61                                    "Use Shader Model 2.3", [FeatureDouble]>;
  62
  63 def FeatureCOMPUTE10 : SubtargetFeature<"compute10", "PTXTarget",
  64                                         "PTX_COMPUTE_1_0",
  65                                         "Use Compute Compatibility 1.0">;
  66 def FeatureCOMPUTE11 : SubtargetFeature<"compute11", "PTXTarget",
  67                                         "PTX_COMPUTE_1_1",
  68                                         "Use Compute Compatibility 1.1">;
  69 def FeatureCOMPUTE12 : SubtargetFeature<"compute12", "PTXTarget",
  70                                         "PTX_COMPUTE_1_2",
  71                                         "Use Compute Compatibility 1.2">;
  72 def FeatureCOMPUTE13 : SubtargetFeature<"compute13", "PTXTarget",
  73                                         "PTX_COMPUTE_1_3",
  74                                         "Use Compute Compatibility 1.3">;
  75 def FeatureCOMPUTE20 : SubtargetFeature<"compute20", "PTXTarget",
  76                                         "PTX_COMPUTE_2_0",
  77                                         "Use Compute Compatibility 2.0",
  78                                         [FeatureDouble]>;
  79
  80 //===----------------------------------------------------------------------===//
  81 // PTX supported processors
  82 //===----------------------------------------------------------------------===//
  83
  84 class Proc<string Name, list<SubtargetFeature> Features>
  85   : Processor<Name, NoItineraries, Features>;
  86
  87 def : Proc<"generic", []>;
  88
  89 // Processor definitions for compute/shader models
  90 def : Proc<"compute_10", [FeatureCOMPUTE10]>;
  91 def : Proc<"compute_11", [FeatureCOMPUTE11]>;
  92 def : Proc<"compute_12", [FeatureCOMPUTE12]>;
  93 def : Proc<"compute_13", [FeatureCOMPUTE13]>;
  94 def : Proc<"compute_20", [FeatureCOMPUTE20]>;
  95 def : Proc<"sm_10",      [FeatureSM10]>;
  96 def : Proc<"sm_11",      [FeatureSM11]>;
  97 def : Proc<"sm_12",      [FeatureSM12]>;
  98 def : Proc<"sm_13",      [FeatureSM13]>;
  99 def : Proc<"sm_20",      [FeatureSM20]>;
 100 def : Proc<"sm_21",      [FeatureSM21]>;
 101 def : Proc<"sm_22",      [FeatureSM22]>;
 102 def : Proc<"sm_23",      [FeatureSM23]>;
 103
 104 // Processor definitions for common GPU architectures
 105 def : Proc<"g80",        [FeatureSM10]>;
 106 def : Proc<"gt200",      [FeatureSM13]>;
 107 def : Proc<"gf100",      [FeatureSM20, FeatureDouble]>;
 108 def : Proc<"fermi",      [FeatureSM20, FeatureDouble]>;
 109
 110 //===----------------------------------------------------------------------===//
 111 // Register File Description
 112 //===----------------------------------------------------------------------===//
 113
 114 include "PTXRegisterInfo.td"
 115
 116 //===----------------------------------------------------------------------===//
 117 // Instruction Descriptions
 118 //===----------------------------------------------------------------------===//
 119
 120 include "PTXInstrInfo.td"
 121
 122 def PTXInstrInfo : InstrInfo;
 123
 124 //===----------------------------------------------------------------------===//
 125 // Assembly printer
 126 //===----------------------------------------------------------------------===//
 127 // PTX uses the MC printer for asm output, so make sure the TableGen
 128 // AsmWriter bits get associated with the correct class.
 129 def PTXAsmWriter : AsmWriter {
 130   string AsmWriterClassName  = "InstPrinter";
 131   bit isMCAsmWriter = 1;
 132 }
 133
 134 //===----------------------------------------------------------------------===//
 135 // Target Declaration
 136 //===----------------------------------------------------------------------===//
 137
 138 def PTX : Target {
 139   let InstructionSet = PTXInstrInfo;
 140   let AssemblyWriters = [PTXAsmWriter];
 141 }