#ifndef FIRM_IR_IRDEFS_H
#define FIRM_IR_IRDEFS_H
+#include <stdbool.h>
+
#include "firm_types.h"
#include "irdom_t.h"
#include "irmode.h"
ir_op_ops ops; /**< The operations of the this op. */
};
+/** Helper values for ir_mode_sort. */
+enum ir_mode_sort_helper {
+ irmsh_is_num = 0x10, /**< mode represents a number */
+ irmsh_is_data = 0x20, /**< mode represents data (can be carried in registers) */
+ irmsh_is_datab = 0x40, /**< mode represents data or is internal boolean */
+ irmsh_is_dataM = 0x80, /**< mode represents data or is memory */
+};
+
+/**
+ * These values represent the different mode classes of value representations.
+ * Beware: do not change the order of these values without checking
+ * the mode_is
+ */
+typedef enum ir_mode_sort {
+ irms_control_flow = 0, /**< Marks all control flow modes. */
+ irms_block = 1,
+ irms_tuple = 2,
+ irms_any = 3,
+ irms_bad = 4,
+ irms_memory = 5 | irmsh_is_dataM, /**< Marks the memory mode. Not extensible. (irm_M) */
+
+ /** Internal boolean representation.
+ Storing to memory impossible, convert first. (irm_b) */
+ irms_internal_boolean = 6 | irmsh_is_datab,
+
+ /** A mode to represent entities.
+ Restricted int computations can be performed */
+ irms_reference = 7 | irmsh_is_data | irmsh_is_datab | irmsh_is_dataM,
+ /** A mode to represent int numbers.
+ Integer computations can be performed. */
+ irms_int_number = 8 | irmsh_is_data | irmsh_is_datab | irmsh_is_dataM | irmsh_is_num,
+ /** A mode to represent float numbers.
+ Floating point computations can be performed. */
+ irms_float_number = 9 | irmsh_is_data | irmsh_is_datab | irmsh_is_dataM | irmsh_is_num,
+} ir_mode_sort;
+
+/**
+ * A descriptor for an IEEE754 float value.
+ */
+typedef struct float_descriptor_t {
+ unsigned char exponent_size; /**< size of exponent in bits */
+ unsigned char mantissa_size; /**< size of mantissa in bits */
+ bool explicit_one; /**< set if the leading one is explicit */
+} float_descriptor_t;
+
/**
* Contains relevant information about a mode.
*
ident *name; /**< Name ident of this mode */
ir_type *type; /**< corresponding primitive type */
- /* ----------------------------------------------------------------------- */
+ /* ---------------------------------------------------------------------- */
/* On changing this struct you have to evaluate the mode_are_equal function!*/
- ir_mode_sort sort; /**< coarse classification of this mode:
- int, float, reference ...
- (see irmode.h) */
- ir_mode_arithmetic
- arithmetic; /**< different arithmetic operations possible with a mode */
- unsigned size; /**< size of the mode in Bits. */
- unsigned sign:1; /**< signedness of this mode */
- unsigned int modulo_shift; /**< number of bits a values of this mode will be shifted */
- unsigned vector_elem; /**< if this is not equal 1, this is a vector mode with
- vector_elem number of elements, size contains the size
- of all bits and must be dividable by vector_elem */
-
- /* ----------------------------------------------------------------------- */
+ ir_mode_sort sort; /**< coarse classification of this mode:
+ int, float, reference ...
+ (see irmode.h) */
+ ir_mode_arithmetic arithmetic; /**< different arithmetic operations possible with a mode */
+ unsigned size; /**< size of the mode in Bits. */
+ unsigned sign:1; /**< signedness of this mode */
+ unsigned int modulo_shift; /**< number of bits a values of this mode will be shifted */
+ float_descriptor_t float_desc;
+
+ /* ---------------------------------------------------------------------- */
ir_tarval *min; /**< the minimum value that can be expressed */
ir_tarval *max; /**< the maximum value that can be expressed */
ir_tarval *null; /**< the value 0 */