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

What is meant by inferring latches, What is meant by inferring latches, how...

What is meant by inferring latches, how to avoid it? Consider the following: always @(s1 or s0 or i0 or i1 or i2 or i3) case ({s1, s0}) 2'd0: out = i0; 2'd1: out =

Pebble merchant, c programming code for pebble merchant

c programming code for pebble merchant

Mutability and accessibility of primary memory, Mutability and Accessibilit...

Mutability and Accessibility of primary memory: Mutability: Read/write storage or mutable storage  It provides permit ion for the information to be overwritten at

Describe the importance of micro-programming, Question: (a) Describe t...

Question: (a) Describe the importance of Micro-Programming and point out one area where Micro-Programming is extensively used. (b) Below is a diagram of an 8086 processor.

Error detection mechanism must be in-built, Error detection mechanism may i...

Error detection mechanism may include checking mechanical and data communication errors. These errors must be reported to processor. The illustrations of kind of mechanical errors

What is divide overflow, What is divide overflow?  The division operati...

What is divide overflow?  The division operation might result in a quotient with an overflow. Overflow happens when the length of the registers is finite and will not hold a nu

What are semaphores, What are semaphores? Semaphore : A semaphore is a...

What are semaphores? Semaphore : A semaphore is a synchronization tool which gives a general-purpose solution to controlling access to critical sections. It s an abstract data

Explain the necessary conditions for deadlock to occur, Explain the necessa...

Explain the necessary conditions for deadlock to occur. Conditions for deadlock to arise are: i. Mutual exclusion: At least one resource must be held in a non-sharable mo

Organization structure, organization stucture of vardhman and oswal mills.c...

organization stucture of vardhman and oswal mills.compare and contrast them

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