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Re: Bug in loop optimize (invalid postinc to preinc transformation)
- To: dewar at gnat dot com (Robert Dewar)
- Subject: Re: Bug in loop optimize (invalid postinc to preinc transformation)
- From: Alexandre Oliva <aoliva at redhat dot com>
- Date: 28 Dec 2000 18:17:56 -0200
- Cc: kenner at vlsi1 dot ultra dot nyu dot edu, gcc at gcc dot gnu dot org
- Organization: GCC Team, Red Hat
- References: <20001228134026.EC58D34D93@nile.gnat.com>
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}
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