Date: Tue, 17 Mar 1998 07:50:21 +0000 (GMT) From: Terry Lambert <tlambert@primenet.com> To: sgk@troutmask.apl.washington.edu (Steve Kargl) Cc: tlambert@primenet.com, ckempf@enigami.com, freebsd-current@FreeBSD.ORG Subject: Re: Compilers: 2.8.1 v 2.7.2.1? Message-ID: <199803170750.AAA16965@usr04.primenet.com> In-Reply-To: <199803170456.UAA01121@troutmask.apl.washington.edu> from "Steve Kargl" at Mar 16, 98 08:56:10 pm
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> > Exceptions will not work with pthreads unless you are running 2.8.x > > g++ or better. This is as good a reason as any > > FWIW, I've been using egcs-1.0.x for testing g77. On my simple, > real-world benchmark (my code :-), g77 is giving about a 22% increase > in execution speed over f77 (f2c+gcc). egcs makes you make the choice about threading when you compile the compiler, instead of when you compile the code (as in gcc). I think egcs is seriously broken. It *certainly* will not work for C++ exceptions when using pthreads; if you want to compile the CMU ACAPD (for example), you will need the patches against the Moscow Center for SPARC Computing STL, and you *must* use g++ 2.8.0, *NOT* egcs. The problem is that the exception stack needs to be per-thread. The moral to this story? "I can make it run as fast as you want, as long as it doesn't have to actually work". Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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