+/**
+ * Returns non-zero if the given mode honors signed zero's, i.e.,
+ * a +0 and a -0 exists and handled differently.
+ */
+int mode_honor_signed_zeros(const ir_mode *mode);
+
+/**
+ * Returns non-zero if the given mode might overflow on unary Minus.
+ */
+int mode_overflow_on_unary_Minus(const ir_mode *mode);
+
+/**
+ * Returns non-zero if the mode has a reversed wrap-aound
+ * logic, especially (a + x) - x == a.
+ * This is normally true for integer modes, not for floating
+ * point modes.
+ */
+int mode_wrap_around(const ir_mode *mode);
+
+#endif /* _FIRM_IR_IRMODE_H_ */