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

Granularity and , Granularity In parallel computing, granularity is a ...

Granularity In parallel computing, granularity is a important measure of the ratio of computation to communication. Coarse Granularity: relatively huge amounts of computa

explain compiler, Compiler is used to change the high-level language progr...

Compiler is used to change the high-level language program into machine code at a time. It doesn't needs special instruction to store in a memory, it keeps automatically. The imple

Explain host function, Explain Host function Host function: accepts nam...

Explain Host function Host function: accepts name of floating-point guest function with single floating-point argument as its first argument, evaluates this function at x (the

Existential introduction, Existential Introduction: Now if we have any...

Existential Introduction: Now if we have any sentence as, A, and variable, v, that does not occur in A, so then for any ground term, g, such occurs in A, than we can turn A in

Boiler troubles, Differences between internal and external treatment in boi...

Differences between internal and external treatment in boiler

Function modules are also external subroutines, Function Modules are also e...

Function Modules are also external Subroutines. True.

Design a half adder, Q. Design a half adder? In half adder inputs are: ...

Q. Design a half adder? In half adder inputs are: The augend let's say 'x' and addend 'y' bits. The outputs are sum 'S' and carry 'C' bits. Logical relationship betwee

What are the reasons for feedback in a control system, Question: a) Wha...

Question: a) What are the reasons for feedback in a control system? b) What are the roles of the configuration and fault managers in a real-time system? c) What are stimu

Data alignment in arrays, Q. Data Alignment in Arrays? Arrays are align...

Q. Data Alignment in Arrays? Arrays are aligned to templates by ALIGN directive. ALIGN directive is used to align elements of various arrays with one another denoting that they

What is disadvantage of distributed systems, What is disadvantage of Dis...

What is disadvantage of Distributed systems? Ans. Reliability is disadvantage of Distributed system.

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