From: Eric Botcazou <ebotcazou@adacore.com>
To: David Edelsohn <dje.gcc@gmail.com>
Cc: gcc-patches@gcc.gnu.org, Andrew Pinski <pinskia@gmail.com>
Subject: Re: [rs6000] Fix compare debug failure on AIX
Date: Mon, 11 May 2015 08:25:00 -0000 [thread overview]
Message-ID: <27530304.LSp5AH5Hly@polaris> (raw)
In-Reply-To: <CAGWvnynMA+5dDLgGdyc8EQN2OgfYnV1mBNK5Ww3ceFRpCO1+Yw@mail.gmail.com>
> I'm sorry that XCOFF debugging changes the generated code (only in the
> sense of allocating a frame), but that is a system dependency. It's
> been this way for over 20 years. I see no reason to produce worse
> code at -O0 when not debugging simply to make testcases happier.
You apparently read my previous message too quickly, this was reported to
AdaCore on real code, i.e. someone opened a ticket and complained that the
compiler was generating different code with and without -g for XCOFF.
Note that someone a little perverse could easily use this obvious defect to
prevent the compiler from bootstrapping on AIX. ;-)
--
Eric Botcazou
prev parent reply other threads:[~2015-05-11 8:25 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-29 10:31 Eric Botcazou
2015-04-29 10:37 ` pinskia
2015-04-30 11:35 ` Eric Botcazou
2015-05-01 13:48 ` David Edelsohn
2015-05-02 4:24 ` Alan Modra
2015-05-02 10:05 ` Eric Botcazou
2015-05-04 0:32 ` David Edelsohn
2015-05-04 8:33 ` Richard Biener
2015-05-04 13:26 ` Tristan Gingold
2015-05-11 8:25 ` Eric Botcazou [this message]
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