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: -Wuninitialized issues


Diego Novillo wrote:

> We won't get perfect answers, which is fine given the nature of the 
> problem.  However, I would like, to get *consistent* answers.

Yes, I agree that's very important.  In fact, I'd like to generalize
that to say that -- as much as possible -- the same code should generate
the same warnings across architectures, optimization levels, and
releases as well.  If -O3 causes us to say "might have been
uninitialized, but we removed it" while -O0 just says "uninitialized"
that's probably OK.  But, having warnings not appear at -O0, or go away
completely with higher levels of optimization isn't good.

-- 
Mark Mitchell
CodeSourcery, LLC
mark@codesourcery.com
(916) 791-8304


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