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

Pebble merchant, There is a pebble merchant.He sells the pebbles,that are u...

There is a pebble merchant.He sells the pebbles,that are used for shining the floor.His main duty is to take length of the room''s sides. program 1 : package test.padovanstring

Illustrate about the problem statement, Illustrate about the Problem statem...

Illustrate about the Problem statement Problem statement would not be incomplete, inconsistent and ambiguous. Try to state the requirements precisely and point to point. Do no

Explain bitwise-exclusive-or operator, Bitwise-Exclusive-OR Operator: ^ ...

Bitwise-Exclusive-OR Operator: ^ exclusive-OR-expression : AND-expression exclusive-OR-expression ^ AND-expression The  bitwise-exclusive-OR  operator  (^)  compares

What are the benefits of micro programmed control, a. What are the benefits...

a. What are the benefits of hardwired and micro programmed control? b. Sketch neat diagram of single bus organization of CPU showing ALU, all types of registers and the data pat

Convenience of environments -artificial intelligence , Convenience of Envir...

Convenience of Environments -artificial intelligence: In some cases, some aspects of an environment which should be taken into account in decisions about actions may be unavai

Bootstrap, The device is packaged in a 80 pin PLCC device as shown.The main...

The device is packaged in a 80 pin PLCC device as shown.The main groupings of the pins are as follows Port A PA0 - PA7 Parallel Port or Timer Port B PB0 - PB7 Parallel Port or High

Pythagorean theorem, if the 6 is a and the b is 3 what is the c ?

if the 6 is a and the b is 3 what is the c ?

Future scope of the internet, Q. Future scope of the Internet? The futu...

Q. Future scope of the Internet? The future scope of the Internet, along with the World Wide Web (born in 1990), and the commercialization of the Internet are bound to grow exp

C, Write a ‘C’ functions to arrange the elements of an integer array in suc...

Write a ‘C’ functions to arrange the elements of an integer array in such a way that all the negative elements are before the positive elements. The array is passed to it as an arg

Drill-down features provided by abap/4 in interactive lists, What are the d...

What are the drill-down features provided by ABAP/4 in interactive lists? ABAP/4 gives some interactive events on lists such as AT LINE-SELECTION (double click) or AT USER-COM

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