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From: "rsandifo at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/113576] [14 regression] 502.gcc_r hangs 
 r14-8223-g1c1853a70f9422169190e65e568dcccbce02d95c
Date: Thu, 25 Jan 2024 09:26:57 +0000
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 14.0
X-Bugzilla-Keywords: wrong-code
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X-Bugzilla-Status: RESOLVED
X-Bugzilla-Resolution: FIXED
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113576

--- Comment #13 from Richard Sandiford <rsandifo at gcc dot gnu.org> ---
I don't think there's any principle that upper bits must be zero.
How do we end up with a pattern that depends on that being the case?=