https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84953
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- --- gcc/builtins.c.jj 2018-03-07 22:51:58.871478732 +0100 +++ gcc/builtins.c 2018-03-19 18:49:45.313898848 +0100 @@ -9573,7 +9573,7 @@ fold_builtin_strpbrk (location_t loc, tr if (p2[0] == '\0') /* strpbrk(x, "") == NULL. Evaluate and ignore s1 in case it had side-effects. */ - return omit_one_operand_loc (loc, TREE_TYPE (s1), integer_zero_node, s1); + return omit_one_operand_loc (loc, type, integer_zero_node, s1); if (p2[1] != '\0') return NULL_TREE; /* Really call strpbrk. */