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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/106323] [Suboptimal] memcmp(s1, s2, n) == 0 expansion on AArch64 compare to llvm
Date: Sun, 17 Jul 2022 20:23:15 +0000	[thread overview]
Message-ID: <bug-106323-4-5VhvjjOkyF@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-106323-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106323

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
GCC might be better if the first bytes are in cache but the next bytes are not
and then branch is predictable (which it might be).

So this is much more complex than just changing this really.

  reply	other threads:[~2022-07-17 20:23 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-16  9:55 [Bug c/106323] New: " zhongyunde at huawei dot com
2022-07-17 20:23 ` pinskia at gcc dot gnu.org [this message]
2022-07-17 20:37 ` [Bug middle-end/106323] " pinskia at gcc dot gnu.org
2022-07-18  7:31 ` wilco at gcc dot gnu.org
2022-12-06 13:03 ` zhongyunde at huawei dot com

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