[Bug c/71567] Incorrect loop optimization

[manu at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71567

Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:

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

--- Comment #5 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #3)
> Try -fno-aggressive-loop-optimizations .

Note that it is not ensured that switch will disable all optimizations that
rely on undefined behavior: https://gcc.gnu.org/wiki/FAQ#misoptimization

Your code is still broken and it may get miscompiled with a different version
of GCC or a different compiler or due to any changes to the surrounding code.