ExprOptimizer.h

00001 #ifndef gridripper_math_expr_ExprOptimizer_h
00002 #define gridripper_math_expr_ExprOptimizer_h
00003 
00004 #include <string>
00005 #include <gridripper/config.h> /* GReal_t */
00006 #include <gridripper/tvector.h>
00007 
00008 namespace gridripper { namespace math { namespace expr {
00009 
00010 class StkConst;
00011 class StkOp;
00012 class StkOpRepository;
00013 
00014 using namespace std;
00015 
00023 class ExprOptimizer
00024 {
00025 public:
00035     static StkConst* reuseConst(tvector<StkConst*>& nums,
00036                                 const string& name, GReal_t value);
00037 
00041     static void performAll(tvector<StkOp*>& program,
00042                            tvector<StkConst*>& nums,
00043                            GReal_t* stack, StkOpRepository& rep);
00044 
00046     static void inlineExprs(tvector<StkOp*>& program);
00047 
00049     static void precalc(tvector<StkOp*>& program,
00050                         tvector<StkConst*>& nums,
00051                         GReal_t* stack);
00056     static void optimizePow(tvector<StkOp*>& program,
00057                             StkOpRepository& rep);
00058 
00063     static void optimizeMult(tvector<StkOp*>& program,
00064                              StkOpRepository& rep);
00065 
00070     static void optimizeDiv(tvector<StkOp*>& program,
00071                             StkOpRepository& rep);
00072 
00076     static void optimizePlus(tvector<StkOp*>& program,
00077                              StkOpRepository& rep);
00078 
00082     static void optimizeMinus(tvector<StkOp*>& program,
00083                               StkOpRepository& rep);
00084 
00085 private:
00086     static void precalc0(tvector<StkOp*>& program,
00087                          tvector<StkConst*>& nums,
00088                          GReal_t* stack);
00089 };
00090 
00091 } } } /* namespace gridripper::math::expr */
00092 
00093 #endif /* gridripper_math_expr_ExprOptimizer_h */