Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
If clang/LLVM was finished, would you support Gentoo's move?
View unanswered posts
View posts from last 24 hours

Goto page Previous  1, 2, 3, 4, 5, 6, 7, 8, 9  
Reply to topic    Gentoo Forums Forum Index Gentoo Chat
View previous topic :: View next topic  

Would you support a Gentoo move to clang/LLVM
Yes
78%
 78%  [ 157 ]
No
21%
 21%  [ 43 ]
Total Votes : 200

Author Message
Thomas2010
n00b
n00b


Joined: 27 May 2010
Posts: 40
Location: Waynesboro, PA, USA

PostPosted: Tue Mar 06, 2012 7:48 pm    Post subject: Reply with quote

The Debian archive rebuild (15,658 packages) was done with Clang 3.0 with a failure of 1381 packages (8.8%), which is down from 14.5% using Clang 2.9.
Back to top
View user's profile Send private message
ryao
Retired Dev
Retired Dev


Joined: 27 Feb 2012
Posts: 132

PostPosted: Wed Jul 04, 2012 11:36 pm    Post subject: Reply with quote

There is a bug for this issue in the bug tracker:

https://bugs.gentoo.org/show_bug.cgi?id=408963
Back to top
View user's profile Send private message
alexcortes
Apprentice
Apprentice


Joined: 18 Dec 2011
Posts: 205
Location: Rio de Janeiro, Brazil

PostPosted: Thu Aug 02, 2012 8:08 pm    Post subject: Reply with quote

Hello,

This is may be interesting: https://github.com/chneukirchen/obase

Seems they are porting the OpenBSD useland for Linux. :lol:
Back to top
View user's profile Send private message
WorBlux
n00b
n00b


Joined: 07 May 2011
Posts: 39

PostPosted: Fri Aug 03, 2012 2:28 am    Post subject: Reply with quote

cokehabit wrote:
wswartzendruber wrote:
cokehabit wrote:
wswartzendruber wrote:
And what's the real benefit with the move?
well i suppose smaller binaries, faster system and not relying on that bearded gnome

It's already faster than GCC? After all these years?
nothing is slower than gcc.


No, gcc still wins most benchmarks on x86. On other architectures it is still far ahead. I would say it's a bad idea.
Back to top
View user's profile Send private message
djdunn
l33t
l33t


Joined: 26 Dec 2004
Posts: 810

PostPosted: Fri Aug 03, 2012 3:12 pm    Post subject: Reply with quote

http://www.phoronix.com/scan.php?page=news_item&px=MTA5Nzc

theres some benchmarks phoronix did comparing the two
_________________
“Music is a moral law. It gives a soul to the Universe, wings to the mind, flight to the imagination, a charm to sadness, gaiety and life to everything. It is the essence of order, and leads to all that is good and just and beautiful.”

― Plato
Back to top
View user's profile Send private message
ryao
Retired Dev
Retired Dev


Joined: 27 Feb 2012
Posts: 132

PostPosted: Sat Aug 04, 2012 3:15 pm    Post subject: Reply with quote

WorBlux wrote:
cokehabit wrote:
wswartzendruber wrote:
cokehabit wrote:
wswartzendruber wrote:
And what's the real benefit with the move?
well i suppose smaller binaries, faster system and not relying on that bearded gnome

It's already faster than GCC? After all these years?
nothing is slower than gcc.


No, gcc still wins most benchmarks on x86. On other architectures it is still far ahead. I would say it's a bad idea.


Clang has plenty of attributes that are more desirable than outright performance. A clean architecture that minimizes the potential to generate incorrect assembly code is one. Such incidents are rare, but they do happen. GCC 4.6 was masked because it generated SSE instructions in sys-boot/grub when it was supposed to restrict itself to 80386 instructions. This caused systems to fail to boot and it took us more than a year before we understood what was happening.
Back to top
View user's profile Send private message
alexcortes
Apprentice
Apprentice


Joined: 18 Dec 2011
Posts: 205
Location: Rio de Janeiro, Brazil

PostPosted: Sun Aug 19, 2012 6:20 pm    Post subject: Reply with quote

A few new benchmarks.

Intel Ivy Bridge: GCC 4.8 vs. LLVM/Clang 3.2 SVN
Back to top
View user's profile Send private message
ryao
Retired Dev
Retired Dev


Joined: 27 Feb 2012
Posts: 132

PostPosted: Mon Aug 27, 2012 6:24 am    Post subject: Reply with quote

alexcortes wrote:
A few new benchmarks.

Intel Ivy Bridge: GCC 4.8 vs. LLVM/Clang 3.2 SVN


It appears Michael did not set proper CFLAGS, which makes that comparison meaningless.
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Gentoo Chat All times are GMT
Goto page Previous  1, 2, 3, 4, 5, 6, 7, 8, 9
Page 9 of 9

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum