[Bug sanitizer/79341] Many Asan tests fail on s390

[vogt at linux dot vnet.ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79341

--- Comment #38 from Dominik Vogt <vogt at linux dot vnet.ibm.com> ---
(And if it does generate messages, does it take the if or the else bodies?  For
me it's the if-bodies.)