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Re: PATCH: Document POPCNT and enable it for Silvermont
- From: Uros Bizjak <ubizjak at gmail dot com>
- To: "H.J. Lu" <hjl dot tools at gmail dot com>
- Cc: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
- Date: Fri, 22 Nov 2013 08:30:13 +0100
- Subject: Re: PATCH: Document POPCNT and enable it for Silvermont
- Authentication-results: sourceware.org; auth=none
- References: <20131122025203 dot GA26544 at intel dot com>
On Fri, Nov 22, 2013 at 3:52 AM, H.J. Lu <hongjiu.lu@intel.com> wrote:
> Silvermont supports POPCNT. This patch enables POPCNT for Silvermont.
> I also documented POPCNT for corei7, corei7-avx, core-avx-i, core-avx2 and
> slm. Since POPCNT is enabled with -msse4.2, this patch doesn't change
> code generation. It just makes it clear. OK to install?
>
> Thanks.
>
> H.J.
> ----
> 2013-11-21 H.J. Lu <hongjiu.lu@intel.com>
>
> * config/i386/i386.c (processor_alias_table): Enable PTA_POPCNT
> for Silvermont.
>
> * doc/invoke.texi: Mention POPCNT for corei7, corei7-avx,
> core-avx-i, core-avx2 and slm.
OK.
Thanks,
Uros.