From: Kip Macy <kmacy@eventdriven.org>
To: Baurjan Ismagulov <ibr@ata.cs.hun.edu.tr>
Cc: gdb@sources.redhat.com
Subject: Re: bug disappears if compiled with -O0
Date: Mon, 26 Jul 2004 21:19:00 -0000 [thread overview]
Message-ID: <20040726141134.A53701@demos.bsdclusters.com> (raw)
In-Reply-To: <20040726211129.GC2028@ata.cs.hun.edu.tr>
>
> > If the bug truly is a code generation bug, then you will need to read
> > assembly language to isolate the bug.
>
> I will as soon as I'm able to locate it. Could it be anything other than
> an optimization bug? The problem is reported also for gcc 2.95.4 on
> stable.
>
Recently I hit a bug caused by a doubleword unaligned store. It only
showed up with -O2 because the compiler would otherwise generate
single-word stores. You can try different compilers, but I would take a
close look at the generated code.
-Kip
next prev parent reply other threads:[~2004-07-26 21:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-26 3:10 Baurjan Ismagulov
2004-07-26 3:55 ` Michael Chastain
2004-07-26 21:13 ` Baurjan Ismagulov
2004-07-26 21:19 ` Kip Macy [this message]
2004-07-27 0:52 ` Michael Chastain
2004-07-26 5:47 ` Eli Zaretskii
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