regallocator.hh

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#ifndef REGALLOC_REGALLOCATOR_HH
# define REGALLOC_REGALLOCATOR_HH

# include <temp/temp.hh>
# include <assem/fwd.hh>
# include <assem/visitor.hh>
# include <target/fwd.hh>
# include <misc/timer.hh>

namespace regalloc
{

  class RegisterAllocator
    : public assem::Visitor
  {
  public:
    typedef assem::Visitor super_type;
    using super_type::operator();
  public:
    RegisterAllocator(const target::Target& target,
                      const temp::TempMap& tempmap,
                      bool coalesce_p = true, bool trace_p = false);
  public:
    virtual void operator()(assem::ProcFrag& frag) override;
    temp::TempMap allocation_get() const;
    const misc::timer& timer_get() const;

  private:
    /* \brief Remove useless moves i.e. each Move which have the same
       register as source and destination.  */
    void remove_useless_moves(assem::Instrs& instrs);

    const target::Target& target_;
    temp::TempMap tempmap_;
    bool coalesce_p_;
    bool trace_p_;
    misc::timer timer_;
  };

} // namespace regalloc

#endif // !REGALLOC_REGALLOCATOR_HH