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annotate lib/Target/Mips/MipsEVAInstrFormats.td @ 131:f476a9ba4795

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http://llvm.org/svn/llvm-project/compiler-rt/trunk compiler-rt
author mir3636
date Fri, 16 Feb 2018 21:02:11 +0900
parents 1172e4bd9c6f
children c2174574ed3a
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1 //===- MipsEVAInstrFormats.td - Mips Instruction Formats ---*- tablegen -*-===//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9 //
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10 // This file describes Mips32r6 instruction formats.
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11 //
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12 //===----------------------------------------------------------------------===//
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13
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14 class MipsEVAInst : MipsInst<(outs), (ins), "", [], NoItinerary, FrmOther>,
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15 PredicateControl, StdArch {
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16 let DecoderNamespace = "Mips";
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17 let EncodingPredicates = [HasStdEnc];
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18 }
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19
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20 //===----------------------------------------------------------------------===//
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21 //
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22 // Field Values
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23 //
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24 //===----------------------------------------------------------------------===//
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25
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26 // Memory Load/Store EVA
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27 def OPCODE6_LBE : OPCODE6<0b101100>;
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28 def OPCODE6_LBuE : OPCODE6<0b101000>;
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29 def OPCODE6_LHE : OPCODE6<0b101101>;
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30 def OPCODE6_LHuE : OPCODE6<0b101001>;
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31 def OPCODE6_LWE : OPCODE6<0b101111>;
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32
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33 def OPCODE6_SBE : OPCODE6<0b011100>;
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34 def OPCODE6_SHE : OPCODE6<0b011101>;
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35 def OPCODE6_SWE : OPCODE6<0b011111>;
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36
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37 // load/store left/right EVA
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38 def OPCODE6_LWLE : OPCODE6<0b011001>;
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39 def OPCODE6_LWRE : OPCODE6<0b011010>;
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40 def OPCODE6_SWLE : OPCODE6<0b100001>;
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41 def OPCODE6_SWRE : OPCODE6<0b100010>;
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42
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43 // Load-linked EVA, Store-conditional EVA
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44 def OPCODE6_LLE : OPCODE6<0b101110>;
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45 def OPCODE6_SCE : OPCODE6<0b011110>;
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46
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47 def OPCODE6_TLBINV : OPCODE6<0b000011>;
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48 def OPCODE6_TLBINVF : OPCODE6<0b000100>;
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49
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50 def OPCODE6_CACHEE : OPCODE6<0b011011>;
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51 def OPCODE6_PREFE : OPCODE6<0b100011>;
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52
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53 def OPGROUP_COP0_TLB : OPGROUP<0b010000>;
95
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54
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55 //===----------------------------------------------------------------------===//
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56 //
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57 // Encoding Formats
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58 //
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59 //===----------------------------------------------------------------------===//
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60
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61 class SPECIAL3_EVA_LOAD_STORE_FM<OPCODE6 Operation> : MipsEVAInst {
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62 bits<21> addr;
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63 bits<5> hint;
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64 bits<5> base = addr{20-16};
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65 bits<9> offset = addr{8-0};
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66
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67 bits<32> Inst;
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68
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69 let Inst{31-26} = OPGROUP_SPECIAL3.Value;
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70 let Inst{25-21} = base;
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71 let Inst{20-16} = hint;
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72 let Inst{15-7} = offset;
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73 let Inst{6} = 0;
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74 let Inst{5-0} = Operation.Value;
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75 }
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76
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77 class TLB_FM<OPCODE6 Operation> : MipsEVAInst {
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78 bits<32> Inst;
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79
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80 let Inst{31-26} = OPGROUP_COP0_TLB.Value;
95
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81 let Inst{25} = 1; // CO
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82 let Inst{24-6} = 0;
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83 let Inst{5-0} = Operation.Value;
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84 }