constant.hpp

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/*
 * Copyright 2013 2014 Helge Bahmann <hcb@chaoticmind.net>
 * Copyright 2011 2012 2013 2014 Nico Reißmann <nico.reissmann@gmail.com>
 * See COPYING for terms of redistribution.
 */
 
#ifndef JLM_RVSDG_BITSTRING_CONSTANT_HPP
#define JLM_RVSDG_BITSTRING_CONSTANT_HPP
 
#include <jlm/rvsdg/bitstring/type.hpp>
#include <jlm/rvsdg/bitstring/value-representation.hpp>
#include <jlm/rvsdg/node.hpp>
#include <jlm/rvsdg/nullary.hpp>
#include <jlm/rvsdg/simple-node.hpp>
 
#include <vector>
 
namespace jlm::rvsdg
{
 
class BitConstantOperation final : public NullaryOperation
{
public:
  ~BitConstantOperation() noexcept override;
 
  explicit BitConstantOperation(BitValueRepresentation value);
 
  bool
  operator==(const Operation & other) const noexcept override;
 
  std::string
  debug_string() const override;
 
  [[nodiscard]] std::unique_ptr<Operation>
  copy() const override;
 
  [[nodiscard]] const BitValueRepresentation &
  value() const noexcept
  {
    return value_;
  }
 
  static Output &
  create(Region & region, BitValueRepresentation value)
  {
    return *CreateOpNode<BitConstantOperation>(region, std::move(value)).output(0);
  }
 
  static Output &
  createUndefined(Region & region, const size_t numBits)
  {
    const std::string s(numBits, 'X');
    return create(region, BitValueRepresentation(s.c_str()));
  }
 
private:
  BitValueRepresentation value_;
};
 
}
 
#endif