This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: [PATCH][C/C++] Do not promote return arguments
- From: Andrew Haley <aph-gcc at littlepinkcloud dot COM>
- To: Ian Lance Taylor <iant at google dot com>
- Cc: Richard Guenther <rguenther at suse dot de>, gcc-patches at gcc dot gnu dot org
- Date: Mon, 6 Aug 2007 14:05:49 +0100
- Subject: Re: [PATCH][C/C++] Do not promote return arguments
- References: <Pine.LNX.4.64.0707051311250.24708@zhemvz.fhfr.qr> <m3y7ht38al.fsf@localhost.localdomain>
Ian Lance Taylor writes:
> Richard Guenther <rguenther@suse.de> writes:
>
> > 2007-07-05 Richard Guenther <rguenther@suse.de>
> >
> > cp/
> > * decl.c (start_preparsed_function): Do not promote return type.
> >
> > * c-decl.c (start_function): Do not promote return type.
>
> This is OK.
>
> Thanks.
This is an externally visible change that causes return values not to
be zero- or sign-extended. This breaks code. I don't think this
should be done.
See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32843 for more discussion.
Andrew.