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If clang/LLVM was finished, would you support Gentoo's move?
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Would you support a Gentoo move to clang/LLVM
Yes
79%
 79%  [ 155 ]
No
20%
 20%  [ 40 ]
Total Votes : 195

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Thomas2010
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Joined: 27 May 2010
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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.
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ryao
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Joined: 27 Feb 2012
Posts: 123

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
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alexcortes
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Joined: 18 Dec 2011
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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:
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WorBlux
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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.
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djdunn
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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
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ryao
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Joined: 27 Feb 2012
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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.
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alexcortes
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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
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ryao
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Joined: 27 Feb 2012
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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.
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