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Old 15th February 2012
aleunix aleunix is offline
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Default LLVM Clang Vs gcc

I read some FreeBSD article where there is the intention to replace GCC with clang/LLVM.
On OpenBSD exist similar project?
Or gcc remain the main compiler even on the future?
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Old 15th February 2012
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OpenBSD would try to use PCC as a GCC compilter replacement.
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Old 15th February 2012
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Thanks for the reply.
Now i'm trying to find information about the Portable C Compiler
I find this old (2008) pdf document.
News of the recent first release.

For the few things that i'm reading now the key feautures of this new compiler is that the core function depend from the machine is very small, but i would like known how easy is the support for the main compiler and how easy is the support for new standard?
As for example the new C++11.
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Old 15th February 2012
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But i can't access on the pcc home page for more information.
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Old 15th February 2012
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Quote:
Originally Posted by aleunix View Post
As for example the new C++11.
From what I recall, PCC is C compiler only, it does not compile C++ code.
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Old 15th February 2012
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So for C++ is sufficient use one or the other indicated on the title.
Good.
Thanks.
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Old 16th February 2012
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Quote:
Originally Posted by aleunix View Post
So for C++ is sufficient use one or the other indicated on the title.
Good.
Thanks.
Btw if you want to start using C++11 features you'll want the gcc from ports, not the system compiler (or use clang from ports). The base gcc has no C++11 support at all. At this moment no compiler implements all of C++11 yet, so the later a compiler you can get for this the better. I don't know whether gcc or clang is a better bet at the moment or exactly how much work the porters have to do to get up to the latest one of each. I looked briefly and it looked to me like gcc 4.6 was ported (but broken on one architecture?), but I didn't go so far as to try the package (I have a bunch of things that have to happen first I won't bore you with and, besides, I'm quite happy to wait until Bjarne Stroustrup gets his book out to get going learning this stuff).
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Old 17th February 2012
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Quote:
Originally Posted by vermaden View Post
OpenBSD would try to use PCC as a GCC compilter replacement.
This is not necessarily true. If someone puts the work in, then yes. However, if developers focus on integrating LLVM with base (and I’ve certainly seen more OpenBSD devs using LLVM than pcc), then it will very likely be LLVM instead.

Not that anybody’s opposed to moving to pcc. The only problem is the work that remains to be done. In my personal opinion, the most likely way that pcc will get jump‐started in OpenBSD would be if someone were to add support for the gcc2 architectures.
Quote:
Originally Posted by vermaden View Post
From what I recall, PCC is C compiler only, it does not compile C++ code.
I recall reading on the pcc mailing list that C++ support is eventually planned, but it’s not close enough to be on any roadmap.
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Old 22nd February 2012
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Quote:
Originally Posted by thirdm View Post
Btw if you want to start using C++11 features ...
No problem, I have no hurry.

These some reference about the actual situations for C++11
C++0x Compiler Support
C++0x/C++11 Support in GCC
C++ and C++'11 Support in Clang
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