*/
#define arch_get_register_set_for_class(cls) ((cls)->set)
-/**
- * An immediate.
- */
-struct _arch_immediate_t {
- const char *name; /**< The name of the immediate. */
- ir_mode *mode; /**< The mode of the immediate. */
-};
-
-/**
- * The member of an enum.
- */
-struct _arch_enum_member_t {
- arch_enum_t *enm; /**< The enum, this member belongs to. */
-};
-
-/**
- * An enumeration operand type.
- *
- * Enumeration operand types can be used to describe the variants
- * of an instruction, like giving the cases for a compare (gt, lt,
- * eq, ...) some other special attributes of an instruction.
- */
-struct _arch_enum_t {
- int n_members; /**< The number of members in this enum. */
- arch_enum_member_t *members[1]; /**< The array of members. */
-};
-
typedef enum _arch_operand_type_t {
arch_operand_type_invalid,
arch_operand_type_memory,
} arch_register_req_type_t;
-#define arch_register_req_is_constr(x) \
- ((x)->type & (arch_register_req_type_pair + arch_register_req_type_limited - 1) != 0)
+/**
+ * Convenience macro to check for set constraints.
+ * @param req A pointer to register requirements.
+ * @param kind The kind of constraint to check for (see arch_register_req_type_t).
+ * @return 1, If the kind of constraint is present, 0 if not.
+ */
+#define arch_register_req_is(req, kind) \
+ ((req)->type & (arch_register_req_type_ ## kind) != 0)
/**
* Expresses requirements to register allocation for an operand.
*/
typedef struct _arch_register_req_t {
arch_register_req_type_t type; /**< The type of the constraint. */
- const arch_register_class_t *cls; /**< The register class this
- constraint belongs to. */
+ const arch_register_class_t *cls; /**< The register class this constraint belongs to. */
+
int (*limited)(const ir_node *irn, int pos, bitset_t *bs);
/**< In case of the 'limited'
constraint, this function
return the number of registers
in the bitset. */
- int pos; /**< In case of the equal constraint,
- this gives the position of the
- operand to which the register of
- this should be equal to. Same for
- unequal. */
+ const ir_node *other; /**< In case of "should be equal"
+ or should be different, this gives
+ the node to whose register this
+ one's should be the same/different. */
} arch_register_req_t;
/**
- * Certain node classes which are relevent for the register allocator.
+ * Certain node classes which are relevant for the register allocator.
*/
typedef enum _arch_irn_class_t {
arch_irn_class_normal,