Code Optimization Techniques in Compiler Design

In this video, we will discuss about the Code Optimization Techniques in Compiler Design.
What is Code Optimization ?
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Code Optimization is a technique which tries to improve the code by eliminating unnecessary code lines and arranging the statements in such a sequence that speed up the program execution without wasting the resources.
Various Code Optimization Techniques:
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1. Compile Time Evaluation
a) Constant Folding
b) Constant Propagation
2. Common sub-expression elimination
3. Code Movement
4. Dead Code Elimination
5. Strength Reduction
For details, please watch the video.
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Syntax Trees is an important topic for semester examination as well as competitive examinations like GATE, NET etc.
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[@LearnVidFun]

Hey Guys, Now we have launched our own website www.gatevidyalay.com Kindly visit that website and you can download the notes from there and get other study material! If you can provide any suggestions regarding the improvement of KZbin channel as well as website...we would definitely love to have them! All the best...Keep learning :)

[@successpoint3633]

Its really helpfull in our exam Thanks bro

[@electrician.experimentalex6539]

НАПОМИНАЕТ БОРМОТАНИЕ ПЬЯНОГО ДЖИНА В БУТЫЛКЕ(;--))

[@abhisheksikarwar7457]

right, it's so irritating 'right'

[@kirtiagg5277]

Suprbb handwriting ..& way of teaching is also good ..

[@tavleensehra9386]

great job sir

[@shashishekhar1729]

in the common subexpression elimination example , in the last line after optimization t4 should be replaced with t1 ,

[@LearnVidFun]

Yeah..right buddy!! Please make a correction....Thanks for notifying it!! All the best...Keep learning :)

[@waqaskhan3497]

arey bhai you made it easy just 8 hrs before exam Thanks bro

[@98anirban]

10:45, in common sub-expression elimination, after optimisation, t6 would be t6 = b[t1] + t5

[@abdevillers8180]

Yes Anirban Dutta

[@kartikshiva8923]

fun drinking game. take a shot whenever he says 'right'..... jokes aside thanks for the video...really helpful

[@kartikshiva8923]

Shubhgan chor

[@anjanialone4102]

Handwriting 😍😍

[@LearnVidFun]

Glad to help you dear! All the best...Keep learning :)

[@nitishgupta6802]

Right is the common sub expression that needs to be eliminated to make this video optimal... And Thanks for the awesome tutorial.

[@danielthesantos]

This is very hard for a uni-lingual American to understand. :( But thank you very much for posting these videos anyway, because you're helping others! I'm learning GCC's Inter-procedural Constant Propagation (IPA) right now and it's hard work, but very fun!

[@LearnVidFun]

Hey buddy...Thanks for your concern!! I can perfectly understand the problem you must be facing....!! I will try to provide a solution soon :)

[@jwalan9362]

Jwala- thankyou sir.........your very simplified and and simple way of explaining the concepts is very very helpful...

[@LearnVidFun]

Hey dear...It feels great to help you... Thanks for your appreciation... All the best...Keep learning :)

[@imimimi]

thanks man, you saved my life.

[@prakashsharma7010]

in common sub expression there is a error on the part after the optimization , the T4 is eliminated and used in T6 , it should be T6 = b[T1] + T5

[@LearnVidFun]

Yeah!! Buddy...You are right!! Please correct it :) All the best...Keep learning :)

[@PC-ky3qo]

Amazing explanation. Thanks a lot. There's a mistake though. Make sure that won't be repeated again. Apart from that the explanation is really awesome.

[@mumthasshibil2335]

First of all ur handwriting is so good. The explanation is very good and easy to understand. Thank you so much. Xamz tommorrow:)

[@kshitijpathak2729]

sir at 8:44 in the constant propagation eg: pi=3.14; r=5; area=pi*r*r and in the next line there is written that pi wil be replaced by 3.14 and r by 5 but in you have written 3.14*r*r instead of 3.14*5*5 why?

[@manojitpaul3004]

Right...

[@LearnVidFun]

Hehee...I know that's a sarcastic comment! I will try to correct it :D

[@sonipawan52]

Right XD

[@abhisheksikarwar7457]

right

[@pallaviagrawal7069]

I loved that handwriting

[@rahuljangir7196]

God level of teaching!!!

[@fionabirudugada1215]

Ur explanation is awesome...tqs for the video

[@stevei6911]

very clear explanations. Thanks for ur effort for making this gud quality info available to us.

[@LearnVidFun]

Happy to help you! All the best...Keep learning :)

[@muqadaslatif172]

thank you for your genuine efforts

[@shishirmandal8958]

You teach really well

[@himanichauhan929]

Hey ,you are doing a great job please please continue uploading videos on compiler please 😀😀😀

[@LearnVidFun]

Hey dear...I am glad that you are liking my content and teachings... I will definitely keep doing it as long as I am able to... Thanks for your support... All the best....Keep learning :)

[@travelnlearn]

Right sir ... Very well Explained.

[@TechinvoIn]

you saved my semester bro

[@LearnVidFun]

Glad to help you buddy! All the best...Keep learning :)

[@shefalisachan2622]

You speak right so many times that it is irritating . It's a request if u can eliminate right word rest u are good

[@adarshchourasiya4924]

Right😅

[@bhavinijain5447]

Your handwriting is superb😍

[@j4eg3r47]

Wish I had handwriting like urs can u make a vid abt it?

[@LearnVidFun]

Hey buddy..Thanks a lot for your appreciation! I strongly believe that everyone of us has some unique qualities and abilities hidden inside us and we just need find out those and bring them out! Truly speaking, I have done nothing to improve my handwriting! It's by God grace! You too try to identify your unique qualities hidden inside you and trust me you will rock! Still if you want a video on it...We will definitely try to bring a video on it! All the best...Keep learning :)

[@maheshpasare4975]

mind blowing sir jee.... thank you

[@LearnVidFun]

Happy to help you! All the best...Keep learning :)

[@RahulKumar-og6cv]

Thank u sr I see ur channel first video best way to teach nd I like video and subscribe

[@LearnVidFun]

Thanks for your support... All the best...Keep learning :)

[@pateldevnarayan]

Very well explained.

[@chrisogonas]

Amazing presentation. Good work! Thx

[@vimalmaniyar527]

Understand in easy way thanks

[@ki6763]

can u plz make one video on good hand writing?its an humble request .

[@LearnVidFun]

Hey dear...really do you want me to make a video on good hand writing?? :D

[@j4eg3r47]

LearnVidFun yup

[@harshad-musale3467]

Sir this is machine dependent or machine indepe techniques?

[@bipinkumar9449]

very easy explanation of concept , thank you...

[@dhananjaykumar6397]

Bhai handwriting to aafat h aapka

[@dineshprakash8630]

add more videos ur teaching technique is awesome.

[@LearnVidFun]

Thanks a lot dear...Your appreciation is really a motivation for me!! All the best...Keep learning :)

[@5minutesamcraft419]

sir g writing apni sahi sy likha kry smj nh ati word kiya likhy hua hai 😐

[@TECHNICALGURU-vr3zc]

Great explanation

[@seriousrelations]

very interesting and well explained. i liked it.

[@LearnVidFun]

Thank you :)

[@DeepakSharma-uk6mc]

Thanks buddy u save a lot of time

[@LearnVidFun]

Happy to help you buddy...Keep learning :)

[@sachinbaraiya1622]

Thank U thank U sir Ur great your notes are awesome n thank U ...👌👌

[@mdmsar8590]

Very awesome yur explanation, i have need of one topic that is symbol table, code generation, plz yu upload of this topic plzzz

[@LearnVidFun]

Thanks a lot buddy for your appreciation...I will definitely try to make the videos of above topics available soon...Stay tuned! For getting the video notes please visit the blog by clicking the following link- learnvidfuncompilerdesign.blogspot.in All the best...Keep learning :)

[@srikruthihimanikabonda1417]

excellent video .. thanks alot.. why dnt u make full videos only in English.. plzz

[@LearnVidFun]

Thanks buddy for your appreciation... Actually, while recording videos, I try to take care for Hindi students as well... I am glad that you liked my videos... All the best...Keep learning :)

[@shubhammahajan6696]

hand writing and explaination both good

[@LearnVidFun]

Thanks a lot buddy :)

[@BHARATKUMAR-le6eq]

Superb bro

[@rishisharma6246]

Your video like (Right........ Right ........ Right...........Right ....... Right....)^n :-D :-D btw the content is really healpful....

[@thekkb007]

AMAZING TUTORIAL!

[@LearnVidFun]

Thanks buddy for the appreciation.. :)

[@vineshtallatalla1335]

Tq u for clear explanation

[@LearnVidFun]

Happy to help you...All the best...Keep learning :)

[@mohammedajazquadri7869]

Brilliant your explanation is awesome ..

[@LearnVidFun]

Thanks a lot buddy! All the best...Keep learning :)

[@kshitijsrivastava6148]

I hope ye video apko acha laga hoga..😉

[@junigates]

great....helps me a lot...thanks

[@akshaygora5979]

pls make a video on activation tree and activation record

[@LearnVidFun]

Hey dear! Will definitely cover it soon! Stay tuned...All the best...Keep learning :)

[@manojbendi9401]

Very Clear!

[@LearnVidFun]

Thanks buddy...Keep learning :)

[@tahsinsadia1811]

Thank you for ur tutorial. helped me alot to learn these things. Do you have any tutorial on register allocation, web or coloring graph? I need it urgently for my final but I m not able to find any suitable tutorial to learn this :(

[@LearnVidFun]

Hey dear...Thanks for your liking and appreciation :) I will try to make available these topics too... All the best...Keep learning :)

[@tahreemshad8263]

you didn't mention the lecture numbers because of which it is difficult to know what to learn first.

[@LearnVidFun]

Hey dear...You can refer the playlist!! Lectures are arranged there in the order :) All the best..Keep learning :)

[@unethicalwork6520]

What is the name of this pen that u r holding...pls reply...

[@tanmayjha98]

U made it easy for me thanks bro

[@pinkyindre9422]

Thnku so much sir for these vedio

[@LearnVidFun]

Happy to help you... All the best...Keep learning :)

[@edsharen1709]

Good handwriting Haa keep it up

[@LearnVidFun]

Thanks a lot buddy! We will keep putting our efforts to provide you the best content! All the best...Keep learning :)

[@nikhileshteja2134]

Hey bro ! small suggestion, don't say every time 'RIGHT' word . thank you anyways nice one helped me :)

[@dhroovkanwar8612]

Good teaching skills

[@ishalrajpoot1966]

Is it compiler based optimization register?

[@prakashjutoor2684]

Good and clear....

[@LearnVidFun]

Thank you..Keep learning :)

[@abdulelah.6999]

What is the most important code optimization techniques from these techniques ? Eliminating common expressions , Copy propagation , Dead-code elimination, Code Motion , Constant folding

[@arpanmukherjee4625]

while(1) { right?; }

[@nirwalsingh8626]

Gud knowledge

[@priyanshudwivedi28]

Loop optimization par bhi video banaye...Xp explanation.jai hind

[@MahadiHasan-lp3xz]

Nice explanation

[@LearnVidFun]

Happy to help you buddy :) You can download the video notes from our website www.gatevidyalay.com ! All the best...Keep learning :)

[@vikasvicky127]

Thanks for good explanation

[@dollartracker]

thank u sir……thank u so much.

[@LearnVidFun]

Happy to help you buddy.... Keep learning :)

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Thanks bro 🔥🔥🔥👍👍👍

[@sakshichoudhary9808]

really helpful...... thanks...

[@LearnVidFun]

Happy to help you dear :) Stay tuned for more content! All the best...Keep learning :)

[@syedmoiezbukhari2972]

Right, your video is so right

[@chandrimabose8326]

Are copy propagation and constant propagation same?

[@gopiKrishna-ri6xs]

thank you so much Sir

[@LearnVidFun]

Happy to help you dear...Keep learning :)

[@MohammedJavid-jz8vi]

Super👍

[@preetikant1874]

nice sir

[@LearnVidFun]

Thank you so much dear... All the best...Keep learning :)

[@yashwantb13]

Thank u brother!!

[@LearnVidFun]

Happy to help you dear.... :) All the best...Keep learning :)

[@anantk0334]

Really your r very good

[@simrankourb1759]

Thank you u did very well 😊

[@rupalisharma6351]

simple and awesome

[@LearnVidFun]

Thanks dear for the appreciation! All the best...Keep learning :)

[@aneesmohammed4351]

Thanks 👍

[@manindermanish3843]

at 9.39 in after optimization i think there needs to b t6= b[t1]+t5

[@manindermanish3843]

its aleady pointed by someone :D

[@LearnVidFun]

Yeah! May be dear...Please look into this! If doubt still exist...do let me know! I will sort it out!! All the best...Keep learning :)

[@_tan2112]

a very big thanks sir

[@testknowledge1292]

Thank you

[@Originalimoc]

Are you using two languages in one video?

[@jkssiyak3844]

Yah, english and Hindi Mix use of both languages is most common in the india

[@sathyamuralikumar1487]

tell me the induction variable elimination in compiler design

[@LearnVidFun]

Hey buddy...Induction variable is the variable that gets incremented or decremented by fixed amount with every iteration of a loop. Consider the following example which contains the induction variables j and k. void main ( ) { int a[10], b[10]; int i, j, k; for (i=0,j=0,k=0 ; i

[@seriousrelations]

Can you please guide me a bit in detail about parsing?

[@LearnVidFun]

Hey buddy...I will soon make available a video on it! Keep learning :)

[@36_bhageshkadam72]

Thanxx so much

[@kulrajkaul3910]

thankyou bhaiya.

[@KamalSharma-zw3fl]

Thanks bhai

[@jayshah4456]

You are awesome buddy please make video on data mining and data warehouse before 1-dec-2018.

[@prudhviraj757]

Bro Where is Copy Propagation in Code Optimization?

[@LearnVidFun]

You can Google it! If any doubt pertains, we would love to assist you :) All the best...Keep learning :)

[@roymathew7470]

super class

[@LearnVidFun]

Thanks a lot dear for your appreciation :) We will keep providing you such content...Stay tuned! All the best...Keep learning :)

[@vivekrai4811]

Thanks

[@pavanvemuri6352]

10:37 isn't its supposed to be T6 = b[T1] + T5 in after optimization..... you haven't declared T4 at all to use it :/

[@mysmallcap]

धन्यवाद

[@johnbhaiya5363]

Thanks sir......

[@LearnVidFun]

Happy to help you dear.... :) All the best...Keep learning :)

[@narayanamjairamdesik9007]

Awesome