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From: "linkw at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/111591] ppc64be: miscompilation with -mstrict-align /
 -O3
Date: Wed, 27 Sep 2023 09:24:21 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111591

Kewen Lin <linkw at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |msebor at gcc dot gnu.org

--- Comment #13 from Kewen Lin <linkw at gcc dot gnu.org> ---
Thanks again for the reduced test case and the information!

I tried to bisect it but encountered some build failures on _Float32 error
etc., through grepping the log I switched to start from r13-2887 (good) to
r13-7206 (bad).

The bisection shows the culprit commit is r13-3378-gf6c168f8c06047 which was
backported to GCC-12, it seems to match the observation new gcc-12 fail whi=
le
gcc-11 pass.=