https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82818
--- Comment #1 from dark_sylinc at yahoo dot com.ar --- Update: 1. Confirmed to be broken with gcc 7.2 2. When I said fsanitize; I meant fsanitize=undefined 3. When code is slightly modified as in the new attachment, the crash is gone. But it appears again if after calling a.destroy(); we add a.~FastArray();