From: dewar@gnat.com (Robert Dewar)
To: aoliva@redhat.com, dewar@gnat.com
Cc: gcc@gcc.gnu.org, rth@redhat.com, toon@moene.indiv.nluug.nl
Subject: Re: possible gcse failure: not able to eliminate redundant loads
Date: Sat, 21 Dec 2002 20:36:00 -0000 [thread overview]
Message-ID: <20021221193853.CE494F2941@nile.gnat.com> (raw)
> At the expense of getting nice crashes at points where NULL is
> dereferenced, which often makes it easy to find bugs? Oh, and there's
umm ... optimization is about favoring fast execution of code over
debuggability, so yes, exactly that is the trade off. Note that there
is absolutely NOTHING to stop a compiler from generating code that
diagnoses dereferences of null pointers in fully optimized code if
that's what you want (it is for example required in Ada!)
next reply other threads:[~2002-12-21 19:39 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-21 20:36 Robert Dewar [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-12-19 7:08 Richard Kenner
2002-12-18 18:39 Robert Dewar
2002-12-19 3:02 ` Richard Henderson
2002-12-21 19:49 ` Alexandre Oliva
2002-12-13 0:39 Sanjiv Kumar Gupta, Noida
2002-12-13 2:42 ` Richard Henderson
2002-12-13 13:10 ` Toon Moene
2002-12-16 10:15 ` Richard Henderson
2002-12-16 11:32 ` Andrew Haley
2002-12-16 13:13 ` Toon Moene
2002-12-16 13:32 ` Richard Henderson
2002-12-16 14:44 ` Toon Moene
2002-12-16 14:48 ` Toon Moene
2002-12-16 15:29 ` Richard Henderson
2002-12-17 15:20 ` Toon Moene
2002-12-16 15:38 ` Jan Hubicka
2002-12-16 16:40 ` Alex Rosenberg
2002-12-12 23:42 Sanjiv Kumar Gupta, Noida
2002-12-12 21:35 Sanjiv Kumar Gupta, Noida
2002-12-12 21:44 ` Dan Nicolaescu
2002-12-11 22:00 Sanjiv Kumar Gupta, Noida
2002-12-11 22:18 ` Daniel Berlin
2002-12-11 20:32 Sanjiv Kumar Gupta, Noida
2002-12-11 3:30 Sanjiv Kumar Gupta, Noida
2002-12-11 14:53 ` Dale Johannesen
2002-12-11 20:02 ` Daniel Berlin
2002-12-11 20:03 ` Daniel Berlin
2002-12-12 12:25 ` Richard Henderson
2002-12-12 12:28 ` Daniel Berlin
2002-12-12 13:03 ` Richard Henderson
2002-12-12 13:04 ` David Edelsohn
2002-12-12 14:32 ` Richard Henderson
2002-12-12 14:42 ` David Edelsohn
2002-12-12 14:58 ` Richard Henderson
2002-12-12 15:28 ` Daniel Berlin
2002-12-13 3:41 ` Richard Henderson
2002-12-12 20:30 ` David Edelsohn
2002-12-12 15:29 ` Geoff Keating
2002-12-11 3:27 Sanjiv Kumar Gupta, Noida
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