https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79341
--- Comment #2 from Dominik Vogt <vogt at linux dot vnet.ibm.com> --- No, that does not help. Meanwhile the Tests on s390x have completed (r244119), and there are > 100 Asan related FAILs with -m31 as well as -m64. Not anywhere near your or Andreas' test results. Many FAILs similar to this one: SUMMARY: AddressSanitizer: SEGV (<unknown module>) ==24206==ABORTING FAIL: gcc.dg/asan/use-after-scope-goto-1.c -O0 execution test ^^^^^^^^^^^^^^