Calling Leader and other interested participants: GCC Optimizer ??

[andhrabalayya]

Anybody up for game ??

[ammulu]

sCo_hmmthink sCo_hmmthink sCo_hmmthink

[andhrabalayya]

nuvu ready aah ??
[quote author=ammulu link=topic=126354.msg1399002#msg1399002 date=1290914301]
sCo_hmmthink sCo_hmmthink sCo_hmmthink
[/quote]

[ammulu]

[quote author=andhrabalayya link=topic=126354.msg1399010#msg1399010 date=1290914453]
nuvu ready aah ??
[/quote]

asalu game ennti? sCo_hmmthink sCo_hmmthink

[AADINAYAKUDU]

gcc ante enti... sCo_hmmthink sCo_hmmthink sCo_hmmthink

[andhrabalayya]

I will post two codes : A and B see how well you can anticipate gcc Optimizer !!
Will the code A be as fast as the code on B when compiled with an optimizing gcc?

lets start:
A) int triple_it(int x) {
  return x * 3;
}

B) int triple_it(int x) {
  return x +x+x;
}

gcc A lo x ni 3 tho multiplication... x+x+x ga transform chestunda for optimization ?

[Nellore Pedda reddy]

Leader baa busy ga unnadu  sSc_hiding2 sSc_hiding2

[andhrabalayya]

GNU C Compiler
[quote author=AADINAYAKUDU link=topic=126354.msg1399023#msg1399023 date=1290914818]
gcc ante enti... sCo_hmmthink sCo_hmmthink sCo_hmmthink
[/quote]

[ammulu]

[img]http://www.gifsoup.com/view1/1351924/benzbabuposts-o.gif[/img]

[allbakara]

[quote author=andhrabalayya link=topic=126354.msg1399037#msg1399037 date=1290915110]
I will post two codes : A and B see how well you can anticipate gcc Optimizer !!
Will the code A be as fast as the code on B when compiled with an optimizing gcc?

lets start:
A) int triple_it(int x) {
  return x * 3;
}

B) int triple_it(int x) {
  return x +x+x;
}

gcc A lo x ni 3 tho multiplication... x+x+x ga transform chestunda for optimization ?

[/quote]
[quote author=ammulu link=topic=126354.msg1399048#msg1399048 date=1290915357]
[img]http://www.gifsoup.com/view1/1351924/benzbabuposts-o.gif[/img]
[/quote]
@3$% nadi kuda idhe paristhi andhrabalayya baa, nenu life sciences  sSc_hiding2

[andhrabalayya]

Cheers !! Anduke Specific ga Leader, GCC Optimizer ani hint icha... btw ekkadnunchi nuvu ?? US or UK
[quote author=allbakara link=topic=126354.msg1399057#msg1399057 date=1290915629]
@3$% nadi kuda idhe paristhi andhrabalayya baa, nenu life sciences  sSc_hiding2
[/quote]

[AADINAYAKUDU]

[quote author=andhrabalayya link=topic=126354.msg1399041#msg1399041 date=1290915211]
GNU C Compiler
[/quote] sorry2 mama manu antha touch ledu vaati meeda....

[ammulu]

title ento variety ga undhani vacha neniithe...... sSa_j@il sSa_j@il

[allbakara]

[quote author=andhrabalayya link=topic=126354.msg1399060#msg1399060 date=1290915712]
Cheers !! Anduke Specific ga Leader, GCC Optimizer ani hint icha... btw ekkadnunchi nuvu ?? US or UK
[/quote]u.s

[andhrabalayya]

Answer#
Yes GCC Optimizes it like in B.Processor i386 architecture aithe gcc uses add instruction, x86 aithe leal instruction, ppc aithe shift left by 1

[quote author=andhrabalayya link=topic=126354.msg1399037#msg1399037 date=1290915110]
I will post two codes : A and B see how well you can anticipate gcc Optimizer !!
Will the code A be as fast as the code on B when compiled with an optimizing gcc?

lets start:
A) int triple_it(int x) {
  return x * 3;
}

B) int triple_it(int x) {
  return x +x+x;
}

gcc A lo x ni 3 tho multiplication... x+x+x ga transform chestunda for optimization ?
[/quote]