#include "firm_config.h"
-#include "irop_t.h"
-#include "irnode_t.h"
-#include "irmode_t.h"
+#include "irnode.h"
+#include "irmode.h"
#include "hashptr.h"
#include "fourcc.h"
#include "list.h"
#include "ident.h"
-#include "bearch.h"
-
struct _bitset_t;
typedef struct _arch_register_class_t arch_register_class_t;
typedef struct _arch_enum_member_t arch_enum_member_t;
typedef struct _arch_isa_if_t arch_isa_if_t;
typedef struct _arch_env_t arch_env_t;
+typedef struct _arch_irn_ops_t arch_irn_ops_t;
+typedef struct _arch_irn_handler_t arch_irn_handler_t;
typedef enum _arch_register_type_t {
arch_register_type_none = 0,
* Different types of register allocation requirements.
*/
typedef enum _arch_register_req_type_t {
- arch_register_req_type_normal, /** All registers in the class
+ arch_register_req_type_none = 0, /** No register requirement. */
+
+ arch_register_req_type_normal = 1, /** All registers in the class
are allowed. */
- arch_register_req_type_limited, /** Only a real subset of
+ arch_register_req_type_limited = 2, /** Only a real subset of
the class is allowed. */
- arch_register_req_type_equal, /** The register must equal
+ arch_register_req_type_equal = 4, /** The register must equal
another one at the node. */
- arch_register_req_type_unequal, /** The register must be unequal
+ arch_register_req_type_unequal = 8, /** The register must be unequal
to some other at the node. */
- arch_register_req_type_pair /** The register is part of a
+ arch_register_req_type_pair = 16 /** The register is part of a
register pair. */
} 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)
+
/**
* Expresses requirements to register allocation for an operand.
*/
arch_irn_class_normal,
arch_irn_class_spill,
arch_irn_class_reload,
- arch_irn_class_copy
+ arch_irn_class_copy,
+ arch_irn_class_perm
} arch_irn_class_t;
/*
* instruction has n input and m output operands.
*/
+#define _BEARCH_TRANSFORM_INDEX(cmp, index) ((index) cmp 0 ? -((index) + 1) : (index))
+
/**
* Make an in position from an index.
* @param index The index.
* @return The position representing the index as an in operand.
*/
-#define arch_pos_make_in(index) (index)
+#define arch_pos_make_in(index) _BEARCH_TRANSFORM_INDEX(<, index)
/**
* Make an out position from an index.
* @param index The index.
* @return The position representing the index as an out operand.
*/
-#define arch_pos_make_out(index) (-((index) + 1))
+#define arch_pos_make_out(index) _BEARCH_TRANSFORM_INDEX(>=, index)
/**
* Check, if a position denotes an input operand.
* @param pos The position.
* @return The index of the position.
*/
-#define arch_pos_get_index(pos) ((pos) < 0 ? -(pos) - 1 : (pos))
+#define arch_pos_get_index(pos) _BEARCH_TRANSFORM_INDEX(<, pos)
-typedef struct _arch_irn_ops_t {
+struct _arch_irn_ops_t {
/**
* Get the register requirements for a given operand.
+ * @param self The self pointer.
* @param irn The node.
* @param pos The operand's position.
- * @return The register requirements for the selected operand,
- * or NULL, if the operand is no register.
+ * @return The register requirements for the selected operand.
+ * The pointer returned is never NULL.
*/
- const arch_register_req_t *(*get_irn_reg_req)(const ir_node *irn, int pos);
+ const arch_register_req_t *(*get_irn_reg_req)(const arch_irn_ops_t *self,
+ arch_register_req_t *req,
+ const ir_node *irn, int pos);
/**
* Get the number of operands of a node.
* output (a number < 0).
* @return The number of operands for either in, or output.
*/
- int (*get_n_operands)(const ir_node *irn, int in_out);
+ int (*get_n_operands)(const arch_irn_ops_t *self, const ir_node *irn, int in_out);
/**
* Set the register for an output operand.
* @note If the operand is not a register operand,
* the call is ignored.
*/
- void (*set_irn_reg)(ir_node *irn, int idx, const arch_register_t *reg);
+ void (*set_irn_reg)(const arch_irn_ops_t *self, ir_node *irn,
+ int idx, const arch_register_t *reg);
/**
* Get the register allocated for an output operand.
* @c arch_register_invalid, if no register has yet been
* allocated for this node.
*/
- const arch_register_t *(*get_irn_reg)(const ir_node *irn, int idx);
+ const arch_register_t *(*get_irn_reg)(const arch_irn_ops_t *self,
+ const ir_node *irn, int idx);
/**
* Classify the node.
* @param irn The node.
* @return A classification.
*/
- arch_irn_class_t (*classify)(const ir_node *irn);
+ arch_irn_class_t (*classify)(const arch_irn_ops_t *self, const ir_node *irn);
+
+};
-} arch_irn_ops_t;
+/**
+ * Get the register requirements for a node.
+ * @param env The architecture environment.
+ * @param req A pointer to a requirements structure, where the data can
+ * be put into.
+ * @param irn The node.
+ * @param pos The position of the operand you're interested in.
+ * @return A pointer to the register requirements which may <b>not</b>
+ * neccessarily be equal to @p req. If NULL is returned, the
+ * operand was no register operand.
+ */
+extern const arch_register_req_t *
+arch_get_register_req(const arch_env_t *env, arch_register_req_t *req,
+ const ir_node *irn, int pos);
/**
* Check if an operand is a register operand.
/**
* Somebody who can be asked about nodes.
*/
-typedef struct _arch_irn_handler_t {
+struct _arch_irn_handler_t {
/**
* Get the operations of an irn.
+ * @param self The handler from which the method is invoked.
* @param irn Some node.
* @return Operations for that irn.
*/
- const arch_irn_ops_t *(*get_irn_ops)(const ir_node *irn);
+ const arch_irn_ops_t *(*get_irn_ops)(const arch_irn_handler_t *handler,
+ const ir_node *irn);
-} arch_irn_handler_t;
+};
/**
* Architecture interface.
projects / libfirm / blobdiff