https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111256
--- Comment #2 from Xi Ruoyao <xry111 at gcc dot gnu.org> --- If you don't have Clang, you can also reproduce the timeout with -ftrivial-auto-var-init=zero or -ftrivial-auto-var-init=pattern (in GCC 12 or later).