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

Explain advantages and disadvantages of macro pre-processor, What are the a...

What are the advantages and disadvantages of macro pre-processor? Advantages Any of existing conventional assembler can be improved in this way to incorporate macro proces

Discuss the general procedure of booting process, Question 1 What are t...

Question 1 What are the different schemes in power management? Explain 2 Explain the functions of parallel port in detail 3 (a) List and explain the functions of keyboard

Where time synchronization is necessary, Time synchronization is necessary ...

Time synchronization is necessary in? Time synchronization is essential in TDM.

Illustrate what is a ion pair energy, Q. Illustrate what is a ion pair ener...

Q. Illustrate what is a ion pair energy? Answer:- Ion energy contains electric charges called protons (+) and neutrons (0) and electrons (-) charges. It's present in an at

First order logic, "George has a dog called Ernie, which is a trained Labra...

"George has a dog called Ernie, which is a trained Labrador. Trained Labradors and poodles are obedient, and all obedient dogs are good dogs. All good dogs that have a master will

What do you mean by e-brokerage, What do you mean by e-brokerage? E-bro...

What do you mean by e-brokerage? E-brokerage is an investment house which permits you to buy and sell stocks and acquire investment information through its Web site. E-comme

The need of parallel computation, The Need Of Parallel Computation With...

The Need Of Parallel Computation With the advancement of computer science (CS), computational speed of the processors has also improved many a time. Moreover, there is certain

Define interrupts and instruction cycle, Q. Define Interrupts and Instructi...

Q. Define Interrupts and Instruction Cycle? Let's precise the interrupt process, on the event of an interrupt, an interrupt request (in form of a signal) is concerned to CPU. T

Explain what is a macro and why is it important, Question 1: Spreadshee...

Question 1: Spreadsheet packages are widely used in Business. a) Explain why spreadsheets are so useful. b) Spreadsheet files are sometimes saved for use by other software p

Explain the concept of generalization, Explain the concept of Generalizatio...

Explain the concept of Generalization Generalization and inheritance are powerful abstractions for sharing the structure and/or behaviour of more than one class.  Generalizati

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