This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: [PATCH] Optimize (subreg ([al]shiftrt (mem) (const_int N))) (PR tree-optimization/45903)
- From: Eric Botcazou <ebotcazou at adacore dot com>
- To: Jakub Jelinek <jakub at redhat dot com>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Fri, 8 Oct 2010 22:29:40 +0200
- Subject: Re: [PATCH] Optimize (subreg ([al]shiftrt (mem) (const_int N))) (PR tree-optimization/45903)
- References: <20101006152326.GI4127@tyan-ft48-01.lab.bos.redhat.com>
> 2010-10-06 Jakub Jelinek <jakub@redhat.com>
>
> PR tree-optimization/45903
> * simplify-rtx.c (simplify_subreg): Optimize SUBREG of *SHIFTRT
> of MEM.
>
> * gcc.target/i386/pr45903.c: New test.
OK, but mention in the comment that it's only for the low part.
--
Eric Botcazou