lib/Target/NVPTX/NVPTX.td

   1 //===- NVPTX.td - Describe the NVPTX 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 NVPTX target.
  10 //===----------------------------------------------------------------------===//
  11
  12 //===----------------------------------------------------------------------===//
  13 // Target-independent interfaces
  14 //===----------------------------------------------------------------------===//
  15
  16 include "llvm/Target/Target.td"
  17
  18 include "NVPTXRegisterInfo.td"
  19 include "NVPTXInstrInfo.td"
  20
  21 //===----------------------------------------------------------------------===//
  22 // Subtarget Features.
  23 // - We use the SM version number instead of explicit feature table.
  24 // - Need at least one feature to avoid generating zero sized array by
  25 //   TableGen in NVPTXGenSubtarget.inc.
  26 //===----------------------------------------------------------------------===//
  27
  28 // SM Versions
  29 def SM20 : SubtargetFeature<"sm_20", "SmVersion", "20",
  30                             "Target SM 2.0">;
  31 def SM21 : SubtargetFeature<"sm_21", "SmVersion", "21",
  32                             "Target SM 2.1">;
  33 def SM30 : SubtargetFeature<"sm_30", "SmVersion", "30",
  34                             "Target SM 3.0">;
  35 def SM35 : SubtargetFeature<"sm_35", "SmVersion", "35",
  36                             "Target SM 3.5">;
  37
  38 // PTX Versions
  39 def PTX30 : SubtargetFeature<"ptx30", "PTXVersion", "30",
  40                              "Use PTX version 3.0">;
  41 def PTX31 : SubtargetFeature<"ptx31", "PTXVersion", "31",
  42                              "Use PTX version 3.1">;
  43
  44 //===----------------------------------------------------------------------===//
  45 // NVPTX supported processors.
  46 //===----------------------------------------------------------------------===//
  47
  48 class Proc<string Name, list<SubtargetFeature> Features>
  49  : Processor<Name, NoItineraries, Features>;
  50
  51 def : Proc<"sm_20", [SM20]>;
  52 def : Proc<"sm_21", [SM21]>;
  53 def : Proc<"sm_30", [SM30]>;
  54 def : Proc<"sm_35", [SM35]>;
  55
  56
  57 def NVPTXInstrInfo : InstrInfo {
  58 }
  59
  60 def NVPTX : Target {
  61   let InstructionSet = NVPTXInstrInfo;
  62 }