contrib/llvm-project/llvm/lib/Target/Hexagon/HexagonScheduleV67T.td

   1 //=- HexagonScheduleV67T.td - Hexagon V67 Tiny Core Scheduling Definitions --=//
   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
   9 class HexagonV67TPseudoItin {
  10   list<InstrItinData> V67TPseudoItin_list = [
  11     InstrItinData<PSEUDO, [InstrStage<1, [SLOT0, SLOT2, SLOT3]>], [2, 1, 1],
  12                           [Hex_FWD, Hex_FWD, Hex_FWD]>,
  13     InstrItinData<PSEUDOM, [InstrStage<1, [SLOT2, SLOT3], 0>,
  14                             InstrStage<1, [SLOT2, SLOT3]>],
  15                            [2, 1, 1],
  16                            [Hex_FWD, Hex_FWD, Hex_FWD]>,
  17     InstrItinData<DUPLEX, [InstrStage<1, [SLOT0]>],
  18                           [2, 1, 1]>,
  19     InstrItinData<tc_ENDLOOP, [InstrStage<1, [SLOT_ENDLOOP]>], [2]>
  20   ];
  21 }
  22
  23 // V67TItin_list and HVXItin contain some old itineraries
  24 // still used by a handful of instructions. Hopefully, we will be able to
  25 // get rid of them soon.
  26 def HexagonV67TItinList : DepScalarItinV67T,
  27                           DepHVXItinV67, HVXItin, HexagonV67TPseudoItin {
  28   list<InstrItinData> V67TItin_list = [
  29     InstrItinData<LD_tc_ld_SLOT01, [InstrStage<1, [SLOT0]>],
  30                                    [3, 1, 1],
  31                                    [Hex_FWD, Hex_FWD, Hex_FWD]>,
  32     InstrItinData<ST_tc_st_SLOT01, [InstrStage<1, [SLOT0]>],
  33                                    [1, 1, 3, 3],
  34                                    [Hex_FWD, Hex_FWD]>
  35   ];
  36
  37   list<InstrItinData> ItinList =
  38     !listconcat(DepScalarItinV67T_list,
  39                 DepHVXItinV67_list, V67TItin_list,
  40                 HVXItin_list, V67TPseudoItin_list);
  41 }
  42
  43 def HexagonItinerariesV67T :
  44       ProcessorItineraries<[SLOT0, SLOT1, SLOT2, SLOT3, SLOT_ENDLOOP,
  45                             CVI_ST, CVI_XLANE, CVI_SHIFT, CVI_MPY0, CVI_MPY1,
  46                             CVI_LD, CVI_XLSHF, CVI_MPY01, CVI_ALL,
  47                             CVI_ALL_NOMEM, CVI_ZW],
  48                             [Hex_FWD, HVX_FWD],
  49                             HexagonV67TItinList.ItinList>;
  50
  51
  52 def HexagonModelV67T : SchedMachineModel {
  53   let IssueWidth = 3;
  54   let Itineraries = HexagonItinerariesV67T;
  55   let LoadLatency = 1;
  56   let CompleteModel = 0;
  57 }
  58
  59 //===----------------------------------------------------------------------===//
  60 // Hexagon V67 Tiny Core Resource Definitions -
  61 //===----------------------------------------------------------------------===//