https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81278
--- Comment #18 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Author: jakub Date: Tue Jul 4 18:51:02 2017 New Revision: 249975 URL: https://gcc.gnu.org/viewcvs?rev=249975&root=gcc&view=rev Log: PR debug/81278 * tree-vrp.c (compare_assert_loc): Turn into a function template with stable template parameter. Only test if a->e is NULL, !a->e == !b->e has been verified already. Use e == NULL or e != NULL instead of e or ! e tests. If stable is true, don't use iterative_hash_expr, on the other side allow a or b or both NULL and sort the NULLs last. (process_assert_insertions): Sort using compare_assert_loc<false> instead of compare_assert_loc, later sort using compare_assert_loc<true> before calling process_assert_insertions_for in a loop. Use break instead of continue once seen NULL pointer. Modified: trunk/gcc/ChangeLog trunk/gcc/tree-vrp.c