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Re: wrong alias-analysis and strange x86-code
- To: Theodore Papadopoulo <Theodore dot Papadopoulo at sophia dot inria dot fr>
- Subject: Re: wrong alias-analysis and strange x86-code
- From: Alexandre Oliva <aoliva at redhat dot com>
- Date: 24 Oct 2000 22:47:50 -0200
- Cc: Geoff Keating <geoffk at cygnus dot com>, Volker Barthelmann <vb at compilers dot de>, gcc-bugs at gcc dot gnu dot org
- Organization: GCC Team, Red Hat
- References: <200010242218.e9OMIXn01450@mururoa.inria.fr>
On Oct 24, 2000, Theodore Papadopoulo <Theodore.Papadopoulo@sophia.inria.fr> wrote:
> Well, correct me if I'm wrong...
If you insist... :-)
> gcc-2.95.2 had -fstrict-aliasing by default whereas it is currently
> not enabled unless you ask for it.
IIRC, only GCC 2.95 (and possibly 2.95.1) was released with it turned
on by default. It turned out that a lot of code wasn't strict
aliasing-ready, so we disabled it again in 2.95.2 (or was it 2.95.1?)
--
Alexandre Oliva Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist *Please* write to mailing lists, not to me