dedup_block.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"
 
class Func;
 
 
 
class DedupBlockPass final : public Pass {
public:
  static const char *kPassID;
 
  DedupBlockPass(PassManager *passManager) : Pass(passManager) {}
 
  bool Run(Prog &prog) override;
 
  const char *GetPassName() const override;
 
private:
  bool Run(Func &func);
  void DedupBlock(const Func *func, const Block *block);
 
  using InstMap = llvm::DenseMap<const Inst *, const Inst *>;
  bool IsEqual(const Block *b1, const Block *b2);
  bool IsEqual(const Inst *i1, const Inst *i2, InstMap &insts);
};