Examples of 'falign-loops' optimisation occuring?

Question

One pass run by the compiler when optimising in gcc is falign-loops.

Although a vague description is provided here: https://www.intel.com/content/www/us/en/develop/documentation/cpp-compiler-developer-guide-and-reference/top/compiler-reference/compiler-options/compiler-option-details/data-options/falign-loops-qalign-loops.html

It is listed as one of the optimisations occurring with the -O2 flag here: https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html

I have been unable to actually see it work in action with any piece of code I have tried using compiler explorer. Does anyone know how the flag functions and perhaps have some explicit examples?

Thanks