Date: Fri, 14 Feb 1997 01:04:54 +0100 (MET) From: Mikael Karpberg <karpen@ocean.campus.luth.se> To: hamby@aris.jpl.nasa.gov (Jake Hamby) Cc: hackers@freebsd.org Subject: Re: Sun Workshop compiler vs. GCC? Message-ID: <199702140004.BAA03489@ocean.campus.luth.se> In-Reply-To: <Pine.GSO.3.95.970213110530.9550A-100000@aris> from Jake Hamby at "Feb 13, 97 11:46:52 am"
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According to Jake Hamby: > I just downloaded a 30-day trial of the newest version of Sun's C++ > compiler (ProCompiler 4.2), which is supposed to offer much better > optimization than previous versions. With the -fast option (which turns > on full optimization, plus 486, Pentium, or PPro optimization as > appropriate), it does seem to take about 3 times as long to compile > anything as GCC (on my 486DX4/100), and so I would hope that the generated > code is much better. [... lots removed ...] I seem to remember 4.2 autogenerating some kind of profiler info, so that if you compile something, and just run it once, and then recompile, the compiler will see what took most time, and go heavy on optimisations there. Neat feature. Don't know how well it works, though... Waiting for it to pop up in g++ too. Speaking of CC and g++... At work we use CC, and I'm getting fairly used to templates, WORKING exceptions (WOW! Who ever heard of such a thing?), and all the thread thingies, like mutexes, etc, default Just Working. So... Does anyone know when g++ will handle this? Would be SO nice to have at home too, for the pet projects. Last time I tried g++ on one of the files written at work, it barfed even PARSING the throw clauses in the function declaration. :( And catching a subclass with a catch clause for a baseclass? Forget it... *sigh* I'd really like a status report on this. Also, does templates work as they should in g++ (Template database, or so)? If not, what's the status on that? Lastly... with 2.2-RELEASE and onward... will the libc_r be replacing the standard libc, or what's the deal with that? I don't really understand how one would handle two libcs. /Mikael
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