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Re: Bug in loop optimize (invalid postinc to preinc transformation)
- To: aoliva at redhat dot com
- Subject: Re: Bug in loop optimize (invalid postinc to preinc transformation)
- From: kenner at vlsi1 dot ultra dot nyu dot edu (Richard Kenner)
- Date: Thu, 28 Dec 00 04:14:48 EST
- Cc: gcc at gcc dot gnu dot org
> Overflow of *unsigned* types is well-defined.
Indeed. But I don't think pointers are unsigned by default, are they?
The implementation of pointers is indeed unsigned on most machines,but
they are not "unsigned types", which would mean integral unsigned types.
So overflow is indeed undefined.