Define elimination of common sub expression, Computer Engineering

Assignment Help:

Explain Elimination of common sub expression during code optimization

An optimizing transformation is a regulation for rewriting a segment of a program to enhance its execution competence without influencing its meaning. One of the methods is "Common sub expression elimination"

In given expression as "(a+b)-(a+b)/4", in this "common sub-expression" termed to the duplicated "(a+b)". Compilers implementing such technique realize that "(a+b)" won't modify, and as such, only compute its value once.


Related Discussions:- Define elimination of common sub expression

Explain common channel signalling, Common channel signalling              ...

Common channel signalling              ? Common channel signalling requires no additional transmission help or facilities.

Timing in mpi program, Q. Timing in MPI program? MPI_Wtime ( ) returns ...

Q. Timing in MPI program? MPI_Wtime ( ) returns lapsed wall clock time in seconds because some random point in past. Elapsed time for program section is given by difference bet

Functions for mpi environment, Q. Functions for MPI Environment? Int M...

Q. Functions for MPI Environment? Int MPI_Finalize (void) It ends the MPI environment. Any MPI function cannot be called after MPI_Finalize. Each MPI process belongs to on

When can a user program execution be interrupted, When can a user program e...

When can a user program execution be interrupted? It won't be desirable to interrupt a program when an instruction is being executed and is in a state such as instruction decod

Define the abstraction of OOA, Define the Abstraction of OOA Now, let ...

Define the Abstraction of OOA Now, let us see how objects can be seen as a problem, and find their associated data and their behaviour. You will notice that an object is an ab

Role of internet, What are the roles of Internet, Intranet and extranet in ...

What are the roles of Internet, Intranet and extranet in e-business? Role of Internet, Intranet and extranet into e-business: The given information activities are carried

What is reflection, What is Reflection?  It extends the benefits of met...

What is Reflection?  It extends the benefits of metadata by permitting developers to inspect and use it at runtime. For example, dynamically verify all the classes contained in

Gui status in a program from the object browser, Can we create a gui status...

Can we create a gui status in a program from the object browser? Yes.  You can make a GUI STATUS in a program using SET PF-STATUS.

Work in standard view, Layout view is helpful for laying out Web pages. How...

Layout view is helpful for laying out Web pages. However you can adjust most of your design elements in Layout view, certain changes should be completed in Standard view. When you

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd