- cons_none = 0, /**< No constrains. */
- cons_volatile = 1U << 0, /**< Memory operation is volatile. */
- cons_unaligned = 1U << 1, /**< Memory operation is unaligned. */
- cons_floats = 1U << 2 /**< Memory operation can float. */
+ cons_none = 0, /**< No constrains. */
+ cons_volatile = 1U << 0, /**< Memory operation is volatile. */
+ cons_unaligned = 1U << 1, /**< Memory operation is unaligned. */
+ cons_floats = 1U << 2, /**< Memory operation can float. */
+ cons_throws_exception = 1U << 3, /**< fragile op throws exception (and
+ produces X_regular and X_except
+ values) */