https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80379
--- Comment #5 from Andi Kleen <andi-gcc at firstfloor dot org> --- This bug is about printing a unnecessary message. If your code is actually miscompiled even with -fno-strict-aliasing set (so it is ignored somewhere) it is something different and you would need a test case to debug.
