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 def SM50 : SubtargetFeature<"sm_50", "SmVersion", "50", 38 "Target SM 5.0">; 39 40 // PTX Versions 41 def PTX30 : SubtargetFeature<"ptx30", "PTXVersion", "30", 42 "Use PTX version 3.0">; 43 def PTX31 : SubtargetFeature<"ptx31", "PTXVersion", "31", 44 "Use PTX version 3.1">; 45 def PTX32 : SubtargetFeature<"ptx32", "PTXVersion", "32", 46 "Use PTX version 3.2">; 47 def PTX40 : SubtargetFeature<"ptx40", "PTXVersion", "40", 48 "Use PTX version 4.0">; 49 50 //===----------------------------------------------------------------------===// 51 // NVPTX supported processors. 52 //===----------------------------------------------------------------------===// 53 54 class Proc<string Name, list<SubtargetFeature> Features> 55 : Processor<Name, NoItineraries, Features>; 56 57 def : Proc<"sm_20", [SM20]>; 58 def : Proc<"sm_21", [SM21]>; 59 def : Proc<"sm_30", [SM30]>; 60 def : Proc<"sm_35", [SM35]>; 61 def : Proc<"sm_50", [SM50]>; 62 63 64 def NVPTXInstrInfo : InstrInfo { 65 } 66 67 def NVPTX : Target { 68 let InstructionSet = NVPTXInstrInfo; 69 } 70
