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Would you support a Gentoo move to clang/LLVM |
Yes |
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78% |
[ 157 ] |
No |
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21% |
[ 43 ] |
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Total Votes : 200 |
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Thomas2010 n00b
Joined: 27 May 2010 Posts: 40 Location: Waynesboro, PA, USA
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Posted: Tue Mar 06, 2012 7:48 pm Post subject: |
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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 Retired Dev
Joined: 27 Feb 2012 Posts: 132
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alexcortes Apprentice
Joined: 18 Dec 2011 Posts: 205 Location: Rio de Janeiro, Brazil
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WorBlux n00b
Joined: 07 May 2011 Posts: 39
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Posted: Fri Aug 03, 2012 2:28 am Post subject: |
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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 l33t
Joined: 26 Dec 2004 Posts: 810
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Posted: Fri Aug 03, 2012 3:12 pm Post subject: |
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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 |
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ryao Retired Dev
Joined: 27 Feb 2012 Posts: 132
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Posted: Sat Aug 04, 2012 3:15 pm Post subject: |
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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 Apprentice
Joined: 18 Dec 2011 Posts: 205 Location: Rio de Janeiro, Brazil
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ryao Retired Dev
Joined: 27 Feb 2012 Posts: 132
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Posted: Mon Aug 27, 2012 6:24 am Post subject: |
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It appears Michael did not set proper CFLAGS, which makes that comparison meaningless. |
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