[Bug tree-optimization/103797] Clang vectorized LightPixel while GCC does not

[hubicka at kam dot mff.cuni.cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103797

--- Comment #2 from hubicka at kam dot mff.cuni.cz ---
> Can you please attach a reduced test-case?
Do you know how to produce one with a reasonable effort?  The
declaratoins are quite convoluted, but the function is well isolated and
easy to inspect from full one...