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From: "wdijkstr at arm dot com" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug string/28214] [suggestion] using stnp instead of stp in memset
 of aarch64
Date: Thu, 21 Apr 2022 14:41:06 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D28214

Wilco <wdijkstr at arm dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |wdijkstr at arm dot com

--- Comment #1 from Wilco <wdijkstr at arm dot com> ---
Doing this is only worthwhile if there is a clear performance gain on some
microarchitectures. For small memsets it is very likely the memory is
immediately reused, so using STNP is wrong. Large memsets of zero use DC ZVA
which results in write streaming on most implementations, so large non-zero
memsets is the only case where STNP might be beneficial.

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