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From: "thiago at kde dot org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug middle-end/102566] [i386] GCC should emit LOCK BTS for simple
 bit-test-and-set operations with std::atomic
Date: Thu, 07 Oct 2021 15:35:53 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102566

--- Comment #26 from Thiago Macieira <thiago at kde dot org> ---
(In reply to H.J. Lu from comment #25)
> Can you get some performance improvement data on real workloads?

Will ask.=