undef_elim.h

// This file if part of the llir-opt project.
// Licensing information can be found in the LICENSE file.
// (C) 2018 Nandor Licker. All rights reserved.
 
#pragma once
 
#include "core/pass.h"
#include "core/insts.h"
#include "core/inst_visitor.h"
 
class Func;
 
 
 
class UndefElimPass final : public Pass, InstVisitor<bool> {
public:
  static const char *kPassID;
 
  UndefElimPass(PassManager *passManager) : Pass(passManager) {}
 
  bool Run(Prog &prog) override;
 
  const char *GetPassName() const override;
 
private:
  bool VisitJumpCondInst(JumpCondInst &i) override;
  bool VisitSwitchInst(SwitchInst &i) override;
  bool VisitSelectInst(SelectInst &i) override;
  bool VisitStoreInst(StoreInst &i) override;
  bool VisitInst(Inst &i) override { return false; }
};