From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexandre Oliva To: dewar@gnat.com (Robert Dewar) Cc: kenner@vlsi1.ultra.nyu.edu, gcc@gcc.gnu.org Subject: Re: Bug in loop optimize (invalid postinc to preinc transformation) Date: Thu, 28 Dec 2000 12:21:00 -0000 Message-id: References: <20001228134026.EC58D34D93@nile.gnat.com> X-SW-Source: 2000-12/msg00807.html On Dec 28, 2000, dewar@gnat.com (Robert Dewar) wrote: > then this is defined only if the resulting pointer remains within the > same object, or in the csae of arrays it can go just past the end. Overflow > per se does not arise with pointers because of this stricter rule. Only if the compiler guarantees that no array will ever be placed across the wrapping boundary. -- 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