https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66908
--- Comment #6 from Marek Polacek <mpolacek at gcc dot gnu.org> --- (In reply to Maxim Ostapenko from comment #5) > It looks like that -fsanitize=shift may introduce uninitialized variables > itself, without other checks. I don't see this on x86_64. But there certainly is a bug, so maybe the fix will help your testcase on ARM as well.
