This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: [PATCH][combine] PR rtl-optimization/68381: Only restrict pure simplification in mult-extend subst case, allow other substitutions
- From: Segher Boessenkool <segher at kernel dot crashing dot org>
- To: Kyrill Tkachov <kyrylo dot tkachov at arm dot com>
- Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>
- Date: Thu, 26 Nov 2015 07:02:20 -0600
- Subject: Re: [PATCH][combine] PR rtl-optimization/68381: Only restrict pure simplification in mult-extend subst case, allow other substitutions
- Authentication-results: sourceware.org; auth=none
- References: <564DA3D1 dot 10905 at arm dot com>
On Thu, Nov 19, 2015 at 10:26:25AM +0000, Kyrill Tkachov wrote:
> Ok for trunk?
>
> Thanks,
> Kyrill
>
> 2015-11-19 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
>
> PR rtl-optimization/68381
> * combine.c (subst): Do not return clobber of zero in widening mult
> case. Just return x unchanged if it is a no-op substitution.
>
> 2015-11-19 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
>
> PR rtl-optimization/68381
> * gcc.c-torture/execute/pr68381.c: New test.
This is fine for trunk. Thanks.
Segher