https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63645
--- Comment #9 from Mikael Pettersson <mikpelinux at gmail dot com> --- Can you tweak the testcase into something that throws an actual runtime error (by faulting or returning 1 from main or doing exit(1)) instead of relying on valgrind (which I don't trust) to spot a/the problem?