https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99459
--- Comment #5 from Iain Sandoe <iains at gcc dot gnu.org> --- It looks likely. is there a 32b arm box on the cfarm? I don't have access to one locally either (but maybe it will reproduce on a cross...) Both places in the crash logs are dummy = dummy ? TREE_OPERAND (CALL_EXPR_FN (dummy), 0) : NULL_TREE; where dummy is the return tree from a DTOR build, I guess that arm can return something other than NULL_TREE for a failed build_special_member_call()? will try to take a look this evening.