https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85616
--- Comment #4 from Denis Roux <denis_second at hotmail dot com> --- I agree that the given example code is breaking the C strict aliasing rule. However, I do not believe that the issue I'm reporting is related to aliasing. Further more, adding -fno-strict-aliasing option do not alter the output. The issue I'm having with the optimized code is that it got optimized from 2 store instructions that do not have alignment restriction into 1 multi-store instruction the does have alignment restriction. I would have expected that the optimization would have occurred only if the alignment was guaranteed to be respected.
