> First problem: > > The g++.dg/pr85039-2.C tests (I've looked in detail at -std=c++98, but > -std=c++11 and -std=c++14 appear to follow the same pattern) see gcc > garbage-collecting a live vector. A subsequent access to the vector with > vec_quick_push causes a segmentation fault, as m_vecpfx.m_num is 0xa5a5a5a5 . > The vec data is also being freed / poisoned. The vector in question is an > auto-variable of cp_parser_parenthesized_expression_list, which is declared > as: > vec<tree, va_gc> *expression_list;
It looks like PR88180 to me.
