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      1 //===-- MSP430.td - Describe the MSP430 Target Machine -----*- tablegen -*-===//
      2 //
      3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
      4 // See https://llvm.org/LICENSE.txt for license information.
      5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
      6 //
      7 //===----------------------------------------------------------------------===//
      8 // This is the top level entry point for the MSP430 target.
      9 //===----------------------------------------------------------------------===//
     10 
     11 //===----------------------------------------------------------------------===//
     12 // Target-independent interfaces
     13 //===----------------------------------------------------------------------===//
     14 
     15 include "llvm/Target/Target.td"
     16 
     17 //===----------------------------------------------------------------------===//
     18 // Subtarget Features. 
     19 //===----------------------------------------------------------------------===//
     20 def FeatureX
     21  : SubtargetFeature<"ext", "ExtendedInsts", "true",
     22                     "Enable MSP430-X extensions">;
     23 
     24 def FeatureHWMult16
     25  : SubtargetFeature<"hwmult16", "HWMultMode", "HWMult16",
     26                     "Enable 16-bit hardware multiplier">;
     27 
     28 def FeatureHWMult32
     29  : SubtargetFeature<"hwmult32", "HWMultMode", "HWMult32",
     30                     "Enable 32-bit hardware multiplier">;
     31 
     32 def FeatureHWMultF5
     33  : SubtargetFeature<"hwmultf5", "HWMultMode", "HWMultF5",
     34                     "Enable F5 series hardware multiplier">;
     35 
     36 //===----------------------------------------------------------------------===//
     37 // MSP430 supported processors.
     38 //===----------------------------------------------------------------------===//
     39 class Proc<string Name, list<SubtargetFeature> Features>
     40  : Processor<Name, NoItineraries, Features>;
     41 
     42 def : Proc<"generic",         []>;
     43 def : Proc<"msp430",          []>;
     44 def : Proc<"msp430x",         [FeatureX]>;
     45 
     46 //===----------------------------------------------------------------------===//
     47 // Register File Description
     48 //===----------------------------------------------------------------------===//
     49 
     50 include "MSP430RegisterInfo.td"
     51 
     52 //===----------------------------------------------------------------------===//
     53 // Calling Convention Description
     54 //===----------------------------------------------------------------------===//
     55 
     56 include "MSP430CallingConv.td"
     57 
     58 //===----------------------------------------------------------------------===//
     59 // Instruction Descriptions
     60 //===----------------------------------------------------------------------===//
     61 
     62 include "MSP430InstrInfo.td"
     63 
     64 def MSP430InstrInfo : InstrInfo;
     65 
     66 //===---------------------------------------------------------------------===//
     67 // Assembly Printers
     68 //===---------------------------------------------------------------------===//
     69 
     70 def MSP430AsmWriter : AsmWriter {
     71   string AsmWriterClassName = "InstPrinter";
     72 }
     73 
     74 //===---------------------------------------------------------------------===//
     75 // Assembly Parsers
     76 //===---------------------------------------------------------------------===//
     77 
     78 def MSP430AsmParser : AsmParser {
     79   let AllowDuplicateRegisterNames = 1;
     80   let ShouldEmitMatchRegisterAltName = 1;
     81 }
     82 
     83 //===----------------------------------------------------------------------===//
     84 // Target Declaration
     85 //===----------------------------------------------------------------------===//
     86 
     87 def MSP430 : Target {
     88   let InstructionSet = MSP430InstrInfo;
     89   let AssemblyParsers = [MSP430AsmParser];
     90 }
     91 
     92