This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: Analysis of high priority PR c/2454
- From: Daniel Berlin <dberlin at dberlin dot org>
- To: Jeff Law <law at redhat dot com>
- Cc: Joe Buck <Joe dot Buck at synopsys dot com>,Roger Sayle <roger at eyesopen dot com>,Richard Kenner <kenner at vlsi1 dot ultra dot nyu dot edu>, <gcc at gcc dot gnu dot org>
- Date: Tue, 2 Jul 2002 15:30:53 -0400 (EDT)
- Subject: Re: Analysis of high priority PR c/2454
>
> If that's a pain (say due to reload weirdness), it would be pretty
> simple to create an optimizer which ran after reload which was
> designed to zap redundant sign/zero extensions.
There was just a paper in PLDI 2002 about this type of optimization,
titled "Effective Sign Extension Elimination".
> jeff
>
>
>