retdec
bit_shift_optimizer.h
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1 
7 #ifndef RETDEC_LLVMIR2HLL_OPTIMIZER_OPTIMIZERS_BIT_SHIFT_OPTIMIZER_H
8 #define RETDEC_LLVMIR2HLL_OPTIMIZER_OPTIMIZERS_BIT_SHIFT_OPTIMIZER_H
9 
13 
14 namespace retdec {
15 namespace llvmir2hll {
16 
17 class BinaryOpExpr;
18 
59 class BitShiftOptimizer final: public Optimizer {
60 public:
62 
63  virtual std::string getId() const override { return "BitShift"; }
64 
65 private:
66  void doOptimization() override;
67 
71  virtual void visit(ShPtr<BitShlOpExpr> expr) override;
72  virtual void visit(ShPtr<BitShrOpExpr> expr) override;
74 };
75 
76 } // namespace llvmir2hll
77 } // namespace retdec
78 
79 #endif
Change bit shift to division or multiplication.
Definition: bit_shift_optimizer.h:59
BitShiftOptimizer(ShPtr< Module > module)
Constructs a new optimizer.
Definition: bit_shift_optimizer.cpp:92
void doOptimization() override
Performs the optimization.
Definition: bit_shift_optimizer.cpp:97
virtual void visit(ShPtr< GlobalVarDef > varDef) override
Definition: ordered_all_visitor.cpp:95
virtual std::string getId() const override
Returns the ID of the optimizer.
Definition: bit_shift_optimizer.h:63
A base class of all optimizers.
Definition: optimizer.h:43
ShPtr< Module > module
The module that is being optimized.
Definition: optimizer.h:79
virtual void visit(ShPtr< GlobalVarDef > varDef) override
Definition: ordered_all_visitor.cpp:95
A base class of all function optimizers.
Debugging support.
A library providing API for working with back-end IR.
std::shared_ptr< T > ShPtr
An alias for a shared pointer.
Definition: smart_ptr.h:18
Definition: archive_wrapper.h:19
Declarations, aliases, macros, etc. for the use of smart pointers.