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From: "andi-gcc at firstfloor dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/111743] shifts in bit field accesses don't combine
 with other shifts
Date: Mon, 09 Oct 2023 19:19:31 +0000
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X-Bugzilla-Component: middle-end
X-Bugzilla-Version: 13.1.0
X-Bugzilla-Keywords: missed-optimization
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111743

--- Comment #2 from Andi Kleen <andi-gcc at firstfloor dot org> ---
Okay then it doesn't understand that SHL_signed and SHR_unsigned can be
combined when one the values came from a shorter unsigned.=