This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: possible compiler bug

From: Robert Dewar <dewar at adacore dot com>
To: Diego Novillo <dnovillo at redhat dot com>
Cc: Friends <fastsnip-frnds1 at yahoo dot com>, gcc at gcc dot gnu dot org
Date: Sun, 01 May 2005 16:35:13 -0400
Subject: Re: possible compiler bug
References: <200505011416.27162.fastsnip-frnds1@yahoo.com> <20050501183324.GA15979@topo.toronto.redhat.com>

Diego Novillo wrote:

On Sun, May 01, 2005 at 02:16:27PM -0400, Friends wrote:

Only when I compile with an optimization level of "O2" or "O3" does the program exit with a memory access error.
It may be a bug in GCC and it may also be a bug in your program
(some problems like aliasing bugs only are exposed at higher
levels of optimization).


Also uninitialized variable problems often show up only with
optimization turned on (registers tend to be "more" uninitialized
than memory :-)

References:
- possible compiler bug
  - From: Friends
- Re: possible compiler bug
  - From: Diego Novillo

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]