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

Design a logic circuit, Ask questDesign a logic circuit with 4 inputs A, B,...

Ask questDesign a logic circuit with 4 inputs A, B, C & D that will produce output ‘1’ only whenever two adjacent input variables are 1’s. A & D are also to be treated as adjacent,

Insert images in dreamweaver, Q. Insert images in Dreamweaver? You will...

Q. Insert images in Dreamweaver? You will learn two methods to insert images in Dreamweaver-using Dreamweaver's main menu and using Objects panel. 1. Click anywhere in the l

Discuss the concept of segmentation, Discuss the concept of segmentation? ...

Discuss the concept of segmentation? Segmentation is method for the non contiguous storage allocation. This is different from paging as this supports user's view of his program

Major characteristics of a computer family, Q. Major characteristics of a c...

Q. Major characteristics of a computer family? Let us summarise the major characteristics of a computer family. These are as below: Figure: Characteristics of computer

Explain the program invisible registers, What are program invisible registe...

What are program invisible registers? Global and local descriptor tables are found in memory system. In order to specify and access the address of these tables, program invisi

Bell lapadula model, A computer system provides protection using the Bell-L...

A computer system provides protection using the Bell-LaPadula policy. How would a virus spread if A) the virus were placed on the system at system low (the compartment that all o

Memory organization - computer architecture, Memory Organization - Computer...

Memory Organization - Computer architecture: BASIC CONCEPTS: Address space - 16-bit : 216 = 64K mem. locations - 32-bit : 232 = 4G mem. locations -          40-b

Command mode using vi editor, What does the c$ command do from command mode...

What does the c$ command do from command mode using Vi Editor? Ans) C$ will start from the character under the curser till the finish of line. So when you use this command it wi

Interpreted language and a compiled language, Difference between an interpr...

Difference between an interpreted language and a compiled language? Ans) A compiled language is written and then run by a compiler which checks its syntax and compresses it int

COMPUTER SYSTEM, Classify computer systems according to capacity. How they ...

Classify computer systems according to capacity. How they are different from computers according to the classification of technology. Provide comparative study also.

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