contrib/llvm/lib/Target/Nios2/Nios2.td

   1 //===-- Nios2.td - Describe the Nios2 Target Machine -------*- tablegen -*-===//
   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
  10 //===----------------------------------------------------------------------===//
  11 // Calling Conv, Instruction Descriptions
  12 //===----------------------------------------------------------------------===//
  13
  14 include "llvm/Target/Target.td"
  15 include "Nios2RegisterInfo.td"
  16 include "Nios2Schedule.td"
  17 include "Nios2InstrInfo.td"
  18 include "Nios2CallingConv.td"
  19
  20 //===----------------------------------------------------------------------===//
  21 // Nios2 Subtarget features
  22 //===----------------------------------------------------------------------===//
  23 def FeatureNios2r1     : SubtargetFeature<"nios2r1", "Nios2ArchVersion",
  24                                 "Nios2r1", "Nios2 R1 ISA Support">;
  25 def FeatureNios2r2     : SubtargetFeature<"nios2r2", "Nios2ArchVersion",
  26                                "Nios2r2", "Nios2 R2 ISA Support">;
  27
  28 //===----------------------------------------------------------------------===//
  29 // Nios2 processors supported.
  30 //===----------------------------------------------------------------------===//
  31
  32 class Proc<string Name, list<SubtargetFeature> Features>
  33  : Processor<Name, Nios2GenericItineraries, Features>;
  34
  35 def : Proc<"nios2r1", [FeatureNios2r1]>;
  36 def : Proc<"nios2r2", [FeatureNios2r2]>;
  37
  38 def Nios2InstrInfo : InstrInfo;
  39
  40 def Nios2AsmParser : AsmParser {
  41   let ShouldEmitMatchRegisterName = 0;
  42 }
  43
  44 //===----------------------------------------------------------------------===//
  45 // Declare the target which we are implementing
  46 //===----------------------------------------------------------------------===//
  47
  48 def Nios2AsmWriter : AsmWriter {
  49   string AsmWriterClassName  = "InstPrinter";
  50   int PassSubtarget = 1;
  51   int Variant = 0;
  52 }
  53
  54 def Nios2 : Target {
  55 // def Nios2InstrInfo : InstrInfo as before.
  56   let InstructionSet = Nios2InstrInfo;
  57   let AssemblyParsers = [Nios2AsmParser];
  58   let AssemblyWriters = [Nios2AsmWriter];
  59 }