------- Comment #6 from rguenth at gcc dot gnu dot org 2008-03-26 21:51 ------- Hm, fold_binary_to_constant (LT_EXPR, boolean_type_node, &"raw_"[0], &""[0]) returns "raw_" < "" (which has TREE_CONSTANT set). tree-vrp.c:operand_less_p doesn't expect that, but only expects 0 or non-0:
tcmp = fold_binary_to_constant (LT_EXPR, boolean_type_node, val, val2); if (!tcmp) return -2; if (!integer_zerop (tcmp)) return 1; -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35706