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

Calculus, i want an assignment on application of integraton and my topc of ...

i want an assignment on application of integraton and my topc of assifment is area under the curve includin solved examples

What is structural hazard, What is structural hazard? Structural hazard...

What is structural hazard? Structural hazard is the situation when two instructions needs the use of a given hardware resource at the similar time. The most common case in whic

Explain the matlab language, This is a high-level matrix/array language wit...

This is a high-level matrix/array language with control flow statements, functions, data structures, input/output, and object-oriented programming features. It permits both "progra

What is the purpose of the cpu, Problem 1 a) What is the purpose of th...

Problem 1 a) What is the purpose of the CPU and what can the CPU perform. b) Name the two most common types of software and briefly illustrate each one. c) The CPU con

What is c++ reference and java final, What is C++ reference and JAVA final?...

What is C++ reference and JAVA final? Association ends must be bound at initialization and cannot be altered. C++ references can fully enforce these semantics, and the JAVA fin

What do you call an event and when do you call an assertion, What do you ca...

What do you call an event and when do you call an assertion? Assertion based Verification Tools, checks whether a statement holds a explained  property or not, while, Event bas

Explain magnetic read and write mechanisms, Q. Explain Magnetic Read and Wr...

Q. Explain Magnetic Read and Write Mechanisms? Data are recorded on and then retrieved from disk via a conducting coil called the head. In numerous systems there are two heads,

Clocked sr flip flop, Clocked SR flip flop A clock pulse is a...

Clocked SR flip flop A clock pulse is a sequence of logic 0, logic 1, and logic 0 occuring on the CLK input. Time t n occurs before the clock pulse and time t n+1

What is tri-state logic, Three Logic Levels are used and they are High, Low...

Three Logic Levels are used and they are High, Low, High impedance state. The high and low are normal logic levels & high impedance state is electrical open circuit conditions. Tri

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