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From: "segher at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug rtl-optimization/98692] Unitialized Values reported only with -Os
Date: Sat, 16 Jan 2021 00:01:06 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98692

Segher Boessenkool <segher at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |acsawdey at gcc dot gnu.org

--- Comment #5 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Have you tried a new valgrind?

Either this is (or was) a known problem in valgrind, or it is related to
one.  Cc:ing Aaron, he might know more (he wrote the GCC optimisations
that expose the problem).=