On Thu, May 31, 2018 at 8:08 AM, Jan Hubicka wrote:
>>
>> This is the patch I am going to check into GCC 8.
>>
>> --
>> H.J.
>
>> From 9ecbfa1fd04dc4370a9ec4f3d56189cc07aee668 Mon Sep 17 00:00:00 2001
>> From: "H.J. Lu"
>> Date: Thu, 17 May 2018 09:52:09 -0700
>> Subject: [PATCH] x86: Re-enable p
>
> This is the patch I am going to check into GCC 8.
>
> --
> H.J.
> From 9ecbfa1fd04dc4370a9ec4f3d56189cc07aee668 Mon Sep 17 00:00:00 2001
> From: "H.J. Lu"
> Date: Thu, 17 May 2018 09:52:09 -0700
> Subject: [PATCH] x86: Re-enable partial_reg_dependency and movx for Haswell
>
> r254152 disa
On Wed, May 30, 2018 at 5:43 AM, H.J. Lu wrote:
> On Sun, May 20, 2018 at 11:51 AM, Jan Hubicka wrote:
>>> r254152 disabled partial_reg_dependency and movx for Haswell and newer
>>> Intel processors. r258972 restored them for skylake-avx512. For Haswell,
>>> movx improves performance. But part
On Sun, May 20, 2018 at 11:51 AM, Jan Hubicka wrote:
>> r254152 disabled partial_reg_dependency and movx for Haswell and newer
>> Intel processors. r258972 restored them for skylake-avx512. For Haswell,
>> movx improves performance. But partial_reg_stall may be better than
>> partial_reg_depend
> r254152 disabled partial_reg_dependency and movx for Haswell and newer
> Intel processors. r258972 restored them for skylake-avx512. For Haswell,
> movx improves performance. But partial_reg_stall may be better than
> partial_reg_dependency in theory. We will investigate performance impact
>
r254152 disabled partial_reg_dependency and movx for Haswell and newer
Intel processors. r258972 restored them for skylake-avx512. For Haswell,
movx improves performance. But partial_reg_stall may be better than
partial_reg_dependency in theory. We will investigate performance impact
of partial
