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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/114417] std::experimental::simd parameters are passed by
 memory on x64 , not using the available sse registers
Date: Thu, 21 Mar 2024 16:28:44 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114417

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
uint64_t f2 (struct type2 & x)

It is definitely passed by reference because of ABI requirements of C++.=