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  Copyright (C) 2017-2021 Intel Corporation
  
  SPDX-License-Identifier: MIT
  
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  This file is distributed under the University of Illinois Open Source License.
  See LICENSE.TXT for details.
  
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  /*========================== begin_copyright_notice ============================
  
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  // This file defines SPIR-V decorations.
  
  #ifndef SPIRVDECORATE_HPP_
  #define SPIRVDECORATE_HPP_
  
  #include "SPIRVEntry.h"
  #include "Probe/Assertion.h"
  
  namespace igc_spv{
  class SPIRVDecorationGroup;
  class SPIRVDecorateGeneric:public SPIRVAnnotationGeneric{
  public:
    // Complete constructor for decorations without literals
    SPIRVDecorateGeneric(Op OC, SPIRVWord WC, Decoration TheDec,
        SPIRVEntry *TheTarget);
    // Complete constructor for decorations with one word literal
    SPIRVDecorateGeneric(Op OC, SPIRVWord WC, Decoration TheDec,
        SPIRVEntry *TheTarget, SPIRVWord V);
    // Incomplete constructor
    SPIRVDecorateGeneric(Op OC);
  
    SPIRVWord getLiteral(size_t) const;
    std::vector<SPIRVWord> getVecLiteral() const;
    Decoration getDecorateKind() const;
    size_t getLiteralCount() const;
    /// Compare kind, literals and target.
    friend bool operator==(const SPIRVDecorateGeneric &A,
        const SPIRVDecorateGeneric &B);
  
    SPIRVDecorationGroup* getOwner() const {
      return Owner;
    }
  
    void setOwner(SPIRVDecorationGroup* owner) {
      Owner = owner;
    }
  
  protected:
    Decoration Dec;
    std::vector<SPIRVWord> Literals;
    SPIRVDecorationGroup *Owner; // Owning decorate group
  };
  
  typedef std::vector<const SPIRVDecorateGeneric *> SPIRVDecorateSet;
  
  class SPIRVDecorate:public SPIRVDecorateGeneric{
  public:
    static const Op OC = OpDecorate;
    static const SPIRVWord FixedWC = 3;
    // Complete constructor for decorations without literals
    SPIRVDecorate(Decoration TheDec, SPIRVEntry *TheTarget)
      :SPIRVDecorateGeneric(OC, 3, TheDec, TheTarget){}
    // Complete constructor for decorations with one word literal
    SPIRVDecorate(Decoration TheDec, SPIRVEntry *TheTarget, SPIRVWord V)
      :SPIRVDecorateGeneric(OC, 4, TheDec, TheTarget, V){}
    // Incomplete constructor
    SPIRVDecorate():SPIRVDecorateGeneric(OC){}
  
    _SPIRV_DCL_DEC
    void setWordCount(SPIRVWord);
  };
  
  class SPIRVMemberDecorate:public SPIRVDecorateGeneric{
  public:
    static const Op OC = OpMemberDecorate;
    static const SPIRVWord FixedWC = 4;
    // Complete constructor for decorations without literals
    SPIRVMemberDecorate(Decoration TheDec, SPIRVWord Member, SPIRVEntry *TheTarget)
      :SPIRVDecorateGeneric(OC, 4, TheDec, TheTarget), MemberNumber(Member){}
    // Complete constructor for decorations with one word literal
    SPIRVMemberDecorate(Decoration TheDec, SPIRVWord Member, SPIRVEntry *TheTarget,
        SPIRVWord V)
      :SPIRVDecorateGeneric(OC, 5, TheDec, TheTarget, V), MemberNumber(Member){}
    // Incomplete constructor
    SPIRVMemberDecorate():SPIRVDecorateGeneric(OC), MemberNumber(SPIRVWORD_MAX){}
  
    SPIRVWord getMemberNumber() const { return MemberNumber;}
    std::pair<SPIRVWord, Decoration> getPair() const {
      return std::make_pair(MemberNumber, Dec);
    }
  
    _SPIRV_DCL_DEC
    void setWordCount(SPIRVWord);
  protected:
    SPIRVWord MemberNumber;
  };
  
  class SPIRVDecorationGroup:public SPIRVEntry{
  public:
    static const Op OC = OpDecorationGroup;
    static const SPIRVWord WC = 2;
    // Complete constructor. Does not populate Decorations.
    SPIRVDecorationGroup(SPIRVModule *TheModule, SPIRVId TheId)
      :SPIRVEntry(TheModule, WC, OC, TheId){
      validate();
    };
    // Incomplete constructor
    SPIRVDecorationGroup():SPIRVEntry(OC){}
    _SPIRV_DCL_DEC
    // Move the given decorates to the decoration group
    void takeDecorates(SPIRVDecorateSet &Decs) {
      Decorations = std::move(Decs);
      for (auto &I:Decorations)
        const_cast<SPIRVDecorateGeneric *>(I)->setOwner(this);
      Decs.clear();
    }
  
    SPIRVDecorateSet& getDecorations() {
      return Decorations;
    }
  
  protected:
    SPIRVDecorateSet Decorations;
    void validate()const {
      IGC_ASSERT(OpCode == OC);
      IGC_ASSERT(WordCount == WC);
    }
  };
  
  class SPIRVGroupDecorateGeneric:public SPIRVEntryNoIdGeneric{
  public:
    static const SPIRVWord FixedWC = 2;
    // Complete constructor
    SPIRVGroupDecorateGeneric(Op OC, SPIRVDecorationGroup *TheGroup,
        const std::vector<SPIRVId> &TheTargets)
      :SPIRVEntryNoIdGeneric(TheGroup->getModule(), FixedWC + TheTargets.size(),
          OC),
       DecorationGroup(TheGroup), Targets(TheTargets){
    }
    // Incomplete constructor
    SPIRVGroupDecorateGeneric(Op OC)
      :SPIRVEntryNoIdGeneric(OC), DecorationGroup(nullptr){}
  
    void setWordCount(SPIRVWord WC) {
      SPIRVEntryNoIdGeneric::setWordCount(WC);
      Targets.resize(WC - FixedWC);
    }
    virtual void decorateTargets() = 0;
    _SPIRV_DCL_DEC
  protected:
    SPIRVDecorationGroup *DecorationGroup;
    std::vector<SPIRVId> Targets;
  };
  
  class SPIRVGroupDecorate:public SPIRVGroupDecorateGeneric{
  public:
    static const Op OC = OpGroupDecorate;
    // Complete constructor
    SPIRVGroupDecorate(SPIRVDecorationGroup *TheGroup,
        const std::vector<SPIRVId> &TheTargets)
      :SPIRVGroupDecorateGeneric(OC, TheGroup, TheTargets){}
    // Incomplete constructor
    SPIRVGroupDecorate()
      :SPIRVGroupDecorateGeneric(OC){}
  
    virtual void decorateTargets();
  };
  
  class SPIRVGroupMemberDecorate:public SPIRVGroupDecorateGeneric{
  public:
    static const Op OC = OpGroupMemberDecorate;
    // Complete constructor
    SPIRVGroupMemberDecorate(SPIRVDecorationGroup *TheGroup,
        const std::vector<SPIRVId> &TheTargets)
      :SPIRVGroupDecorateGeneric(OC, TheGroup, TheTargets){}
    // Incomplete constructor
    SPIRVGroupMemberDecorate()
      :SPIRVGroupDecorateGeneric(OC){}
  
    virtual void decorateTargets();
  };
  
  class SPIRVDecorateId : public SPIRVDecorateGeneric {
  public:
      static const Op OC = OpDecorateId;
      static const SPIRVWord FixedWC = 3;
      // Complete constructor for decorations with one id operand
      SPIRVDecorateId(Decoration TheDec, SPIRVEntry* TheTarget, SPIRVId V)
          : SPIRVDecorateGeneric(OC, 4, TheDec, TheTarget, V) {}
      // Incomplete constructor
      SPIRVDecorateId() : SPIRVDecorateGeneric(OC) {}
  
      _SPIRV_DCL_DEC_OVERRIDE
      void setWordCount(SPIRVWord) override;
      void validate() const override {
          SPIRVDecorateGeneric::validate();
          IGC_ASSERT(WordCount == Literals.size() + FixedWC);
      }
  };
  
  class SPIRVDecorateAliasScopeINTEL : public SPIRVDecorateId {
  public:
      // Complete constructor for SPIRVDecorateAliasScopeINTEL
      SPIRVDecorateAliasScopeINTEL(SPIRVEntry* TheTarget, SPIRVId AliasList)
          : SPIRVDecorateId(DecorationAliasScopeINTEL, TheTarget,
              AliasList) {};
  };
  
  class SPIRVDecorateNoAliasINTEL : public SPIRVDecorateId {
  public:
      // Complete constructor for SPIRVDecorateNoAliasINTEL
      SPIRVDecorateNoAliasINTEL(SPIRVEntry* TheTarget, SPIRVId AliasList)
          : SPIRVDecorateId(DecorationNoAliasINTEL, TheTarget,
              AliasList) {};
  };
  
  }
  
  
  #endif /* SPIRVDECORATE_HPP_ */
  