------- Comment #8 from jakub at gcc dot gnu dot org 2008-10-15 11:59 ------- Anyway, the ICE is caused by PR37327. As 139890 rguenth if (TREE_CODE (val) == INTEGER_CST 139890 rguenth && TREE_OVERFLOW (val)) 139890 rguenth val = build_int_cst_wide (TREE_TYPE (val), 139890 rguenth TREE_INT_CST_LOW (val), TREE_INT_CST_HIGH (val)); removes overflow flag from loc->val, any_uint > UINT_MAX comparison folds to false, which triggers the: tree cond = fold (ASSERT_EXPR_COND (rhs)); gcc_assert (cond != boolean_false_node); assertion in remove_range_assertions. To fix this, we could either: 1) in register_new_assert_for if TREE_OVERFLOW was set on original val try to fold_binary the condition and if it yields false, don't add the assertion candidate at all 2) in process_assert_insertions_for don't add anything if the condition folds to false 3) remove the folding and assert in remove_range_assertions
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37664
