https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79487
--- Comment #23 from Dominik Vogt <vogt at linux dot vnet.ibm.com> --- Same result on s390x (on a zEC12 using -with-arch=zEC12): Without patch: * -O0 -> PASS * -O2 -> FAIL With patch: * -O0 -> PASS * -O2 -> PASS