This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: [PATCH][4.2] Fix PR23294 (fold enhancement)
- From: Jeffrey A Law <law at redhat dot com>
- To: Richard Guenther <rguenther at suse dot de>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Tue, 20 Sep 2005 10:13:34 -0600
- Subject: Re: [PATCH][4.2] Fix PR23294 (fold enhancement)
- References: <Pine.LNX.4.58.0508261547270.29204@wotan.suse.de>
- Reply-to: law at redhat dot com
On Fri, 2005-08-26 at 15:49 +0200, Richard Guenther wrote:
> This fixes PR23294, a failure to fold a*2 + a at the tree level. I took
> the chance to clean up and canonicalize folding of variants of
> A1*C1 + A2*C2 in a separate function.
>
> Bootstrapped and regtested on x86_64-unknown-linux-gnu.
>
> Ok for 4.2 once we branch?
>
> Thanks,
> Richard.
>
>
> 2005-08-26 Richard Guenther <rguenther@suse.de>
>
> * fold-const.c (fold_plusminus_mult_expr): New function.
> (fold_binary): Use to canonicalize PLUS_EXPR and MINUS_EXPR
> cases, remove now unnecessary code.
>
> * gcc.dg/tree-ssa/pr23294.c: New testcase.
OK for 4.2.
jeff