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From: "avi@cloudius-systems.com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/94649] 16-byte aligned atomic_compare_exchange doesn not
 generate cmpxcg16b on x86_64
Date: Mon, 20 Apr 2020 11:37:49 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94649

--- Comment #2 from Avi Kivity <avi@cloudius-systems.com> ---
Maybe we can have a new flag -mcx16all that assumes that all code using 16-=
byte
CAS is compiled with the flag.=