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From: "rearnsha at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/32667] block copy with exact overlap is expanded as
 memcpy
Date: Thu, 04 Jan 2024 14:28:09 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D32667

--- Comment #59 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
Memcpy must never write beyond the end of the specified buffer, even if rea=
ding
it is safe.  That wouldn't be thread safe.=