+extern const unsigned char mode_class[NUM_MACHINE_MODES];
+#define GET_MODE_CLASS(MODE) mode_class[MODE]
+
+/* Nonzero if MODE is an integral mode. */
+#define INTEGRAL_MODE_P(MODE) \
+ (GET_MODE_CLASS (MODE) == MODE_INT \
+ || GET_MODE_CLASS (MODE) == MODE_PARTIAL_INT \
+ || GET_MODE_CLASS (MODE) == MODE_COMPLEX_INT \
+ || GET_MODE_CLASS (MODE) == MODE_VECTOR_INT)
+
+/* Nonzero if MODE is a floating-point mode. */
+#define FLOAT_MODE_P(MODE) \
+ (GET_MODE_CLASS (MODE) == MODE_FLOAT \
+ || GET_MODE_CLASS (MODE) == MODE_DECIMAL_FLOAT \
+ || GET_MODE_CLASS (MODE) == MODE_COMPLEX_FLOAT \
+ || GET_MODE_CLASS (MODE) == MODE_VECTOR_FLOAT)
+
+/* Nonzero if MODE is a complex mode. */
+#define COMPLEX_MODE_P(MODE) \
+ (GET_MODE_CLASS (MODE) == MODE_COMPLEX_INT \
+ || GET_MODE_CLASS (MODE) == MODE_COMPLEX_FLOAT)
+
+/* Nonzero if MODE is a vector mode. */
+#define VECTOR_MODE_P(MODE) \
+ (GET_MODE_CLASS (MODE) == MODE_VECTOR_INT \
+ || GET_MODE_CLASS (MODE) == MODE_VECTOR_FLOAT)
+
+/* Nonzero if MODE is a scalar integral mode. */
+#define SCALAR_INT_MODE_P(MODE) \
+ (GET_MODE_CLASS (MODE) == MODE_INT \
+ || GET_MODE_CLASS (MODE) == MODE_PARTIAL_INT)
+
+/* Nonzero if MODE is a scalar floating point mode. */
+#define SCALAR_FLOAT_MODE_P(MODE) \
+ (GET_MODE_CLASS (MODE) == MODE_FLOAT \
+ || GET_MODE_CLASS (MODE) == MODE_DECIMAL_FLOAT)
+
+/* Nonzero if MODE is a decimal floating point mode. */
+#define DECIMAL_FLOAT_MODE_P(MODE) \
+ (GET_MODE_CLASS (MODE) == MODE_DECIMAL_FLOAT)
+
+/* Nonzero if CLASS modes can be widened. */
+#define CLASS_HAS_WIDER_MODES_P(CLASS) \
+ (CLASS == MODE_INT \
+ || CLASS == MODE_FLOAT \
+ || CLASS == MODE_DECIMAL_FLOAT \
+ || CLASS == MODE_COMPLEX_FLOAT)
+
+/* Get the size in bytes and bits of an object of mode MODE. */
+
+extern CONST_MODE_SIZE unsigned char mode_size[NUM_MACHINE_MODES];
+#define GET_MODE_SIZE(MODE) ((unsigned short) mode_size[MODE])
+#define GET_MODE_BITSIZE(MODE) ((unsigned short) (GET_MODE_SIZE (MODE) * BITS_PER_UNIT))
+
+/* Get the number of value bits of an object of mode MODE. */
+extern const unsigned short mode_precision[NUM_MACHINE_MODES];
+#define GET_MODE_PRECISION(MODE) mode_precision[MODE]