File: InstExpander.h

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/*========================== begin_copyright_notice ============================

Copyright (C) 2017-2021 Intel Corporation

SPDX-License-Identifier: MIT

============================= end_copyright_notice ===========================*/

#ifndef LEGALIZER_INSTEXPANDER_H
#define LEGALIZER_INSTEXPANDER_H

#include "TypeLegalizer.h"
#include "common/LLVMWarningsPush.hpp"
#include "llvm/IR/InstVisitor.h"
#include "common/LLVMWarningsPop.hpp"

namespace IGC {

namespace Legalizer {

class InstExpander : public InstVisitor<InstExpander, bool> {
  friend class InstVisitor<InstExpander, bool>;

  TypeLegalizer *TL;
  BuilderType *IRB;

  ValueSeq Expanded;

public:
  InstExpander(TypeLegalizer *L, BuilderType *B) : TL(L), IRB(B) {}

  bool expand(Instruction *I);

private:
  /// Helpers
  const char *getSuffix() const { return TL->getSuffix(Expand); }

private:
  // By default, capture all missing instructions!
  bool visitInstruction(Instruction &I);

  /// Terminator instructions
  ///

  bool visitTerminatorInst(IGCLLVM::TerminatorInst &I);

  /// Standard binary operators
  ///

  bool visitAdd(BinaryOperator &I);
  bool visitSub(BinaryOperator &I);
  bool visitMul(BinaryOperator &I);
  bool visitUDiv(BinaryOperator &I);
  bool visitSDiv(BinaryOperator &I);
  bool visitURem(BinaryOperator &I);
  bool visitSRem(BinaryOperator &I);
  bool visitShl(BinaryOperator &I);
  bool visitLShr(BinaryOperator &I);
  bool visitAShr(BinaryOperator &I);
  bool visitBinaryOperator(BinaryOperator &I);

  /// Memory operators
  ///

  bool visitLoadInst(LoadInst &I);
  bool visitStoreInst(StoreInst &I);

  /// Cast operators
  ///

  bool visitTruncInst(TruncInst &I);
  bool visitZExtInst(ZExtInst &I);
  bool visitBitCastInst(BitCastInst &I);
};

} // namespace Legalizer

} // namespace IGC
#endif // LEGALIZER_INSTEXPANDER_H