Explain common sub expression elimination, Computer Engineering

Assignment Help:

Explain briefly Common sub expression elimination of the commonly used code optimization techniques.

Common sub expression elimination:

In given expression as "(a+b)-(a+b)/4", in such "common sub-expression" termed to the duplicated "(a+b)". Compilers implementing such technique realize that "(a+b)" would not modify, and by itself, only compute its value once and use similar value next time.


Related Discussions:- Explain common sub expression elimination

File structures, Write in brief about UNIX process structure.

Write in brief about UNIX process structure.

How can i execute a php script using command line, Just run the PHP CLI (Co...

Just run the PHP CLI (Command Line Interface) program and give the PHP script file name as the command line argument. For instance, "php myScript.php", assuming "PHP" is the comman

Single program multiple data, SPMD is actually a "high level" programming m...

SPMD is actually a "high level" programming model that can be built upon any combination of the previously mentioned parallel programming models. A single program is executed by al

What is meant by latch, Latch is a D- type flip-flop used as a temporary st...

Latch is a D- type flip-flop used as a temporary storage device controlled by a timing signal, which can kept 0 or 1. The primary function of a Latch is data storage. It is used in

Branding choices, Develop a web traffic plan - suppose that there is no/min...

Develop a web traffic plan - suppose that there is no/minimal advertising budget so you will require to look at branding choices & site design, word-of-mouth and publicity as your

How to design a sequential circuit, A sequential circuit is signified by a ...

A sequential circuit is signified by a time sequence of external inputs, external outputs and internal flip-flop binary states. So firstly a state diagram and state table is used t

State the use of erasable programmable read only memory, Erasable programma...

Erasable programmable read only memory (EPROM) This is a special type of PROM which can be erased by exposing it to ultraviolet (UV) light. Once it has been erased, it can be r

What are benefits to businesses by e-commerce over extranets, What are adva...

What are advantages and benefits to businesses by e-commerce over extranets? The advantages and benefits to businesses comprise: Less Paperwork: along with documents and bus

How can you pass a struct by reference in e, How can you pass a struct by r...

How can you pass a struct by reference in e?   The question is phrased in a tricky way because passing by reference is the default and only possible way to pass structs in e. I

Caption to commission rate, Get a listing of the name, commission rate, and...

Get a listing of the name, commission rate, and hire date of all salesmembers who sell to commercial customers. Sort the result in order from the 1st hired to the most recently hir

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