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 NVPTXAsmWriter : AsmWriter { 61 bit isMCAsmWriter = 1; 62 string AsmWriterClassName = "InstPrinter"; 63 } 64 65 def NVPTX : Target { 66 let InstructionSet = NVPTXInstrInfo; 67 let AssemblyWriters = [NVPTXAsmWriter]; 68 } 69
