#ifndef _FIRM_BEARCH_H
#define _FIRM_BEARCH_H
-#include "firm_config.h"
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
#ifdef WITH_LIBCORE
#include <libcore/lc_opts.h>
typedef struct _arch_register_class_t arch_register_class_t;
typedef struct _arch_register_t arch_register_t;
-typedef struct _arch_enum_t arch_enum_t;
-typedef struct _arch_enum_member_t arch_enum_member_t;
typedef struct _arch_isa_if_t arch_isa_if_t;
typedef struct _arch_isa_t arch_isa_t;
typedef struct _arch_env_t arch_env_t;
+typedef struct _arch_irn_ops_if_t arch_irn_ops_if_t;
typedef struct _arch_irn_ops_t arch_irn_ops_t;
typedef struct _arch_irn_handler_t arch_irn_handler_t;
typedef struct _arch_code_generator_t arch_code_generator_t;
typedef enum _arch_register_type_t {
arch_register_type_none = 0,
- arch_register_type_write_invariant,
arch_register_type_caller_saved, /**< The register must be saved by the caller
upon a function call. It thus can be overwritten
in the called function. */
arch_register_type_ignore /**< Do not consider this register when allocating. */
} arch_register_type_t;
+/**
+ * Convenience macro to check for register type.
+ * @param req A pointer to register.
+ * @param kind The kind of type to check for (see arch_register_type_t).
+ * @return 1, If register is of given kind, 0 if not.
+ */
+#define arch_register_type_is(reg, kind) \
+ ((reg)->type == arch_register_type_ ## kind)
+
/**
* A register.
*/
#define arch_register_for_index(cls, idx) \
_arch_register_for_index(cls, idx)
-/**
- * Get the register set for a register class.
- * @param cls The register class.
- * @return The set containing all registers in the class.
- */
-#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. */
- int (*limited)(const ir_node *irn, int pos, bitset_t *bs);
+ const arch_register_class_t *cls; /**< The register class this constraint belongs to. */
+
+ void (*limited)(void *limited_env, bitset_t *bs);
/**< In case of the 'limited'
constraint, this function
must put all allowable
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. */
+ void *limited_env; /**< This is passed to limited. */
+
+ 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,
arch_irn_class_reload,
arch_irn_class_copy,
arch_irn_class_perm,
- arch_irn_class_branch
+ arch_irn_class_branch,
+ arch_irn_class_call
} arch_irn_class_t;
/**
* Some flags describing a node in more detail.
*/
typedef enum _arch_irn_flags_t {
- arch_irn_flags_spillable = 1,
- arch_irn_flags_rematerializable = 2
+ arch_irn_flags_dont_spill = 1, /**< This must not be spilled. */
+ arch_irn_flags_rematerializable = 2, /**< This should be replicated instead of spilled/reloaded. */
+ arch_irn_flags_ignore = 4, /**< Do not consider the node during register allocation. */
} arch_irn_flags_t;
-struct _arch_irn_ops_t {
+struct _arch_irn_ops_if_t {
/**
* Get the register requirements for a given operand.
* @return The register requirements for the selected operand.
* The pointer returned is never NULL.
*/
- const arch_register_req_t *(*get_irn_reg_req)(const arch_irn_ops_t *self,
+ const arch_register_req_t *(*get_irn_reg_req)(const void *self,
arch_register_req_t *req, const ir_node *irn, int pos);
/**
* @note If the operand is not a register operand,
* the call is ignored.
*/
- void (*set_irn_reg)(const arch_irn_ops_t *self, ir_node *irn, const arch_register_t *reg);
+ void (*set_irn_reg)(const void *self, ir_node *irn, 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 arch_irn_ops_t *self, const ir_node *irn);
+ const arch_register_t *(*get_irn_reg)(const void *self, const ir_node *irn);
/**
* Classify the node.
* @param irn The node.
* @return A classification.
*/
- arch_irn_class_t (*classify)(const arch_irn_ops_t *self, const ir_node *irn);
+ arch_irn_class_t (*classify)(const void *self, const ir_node *irn);
/**
* Get the flags of a node.
* @param irn The node.
* @return A set of flags.
*/
- arch_irn_flags_t (*get_flags)(const arch_irn_ops_t *self, const ir_node *irn);
+ arch_irn_flags_t (*get_flags)(const void *self, const ir_node *irn);
};
+/**
+ * irn_ops base class.
+ */
+struct _arch_irn_ops_t {
+ const arch_irn_ops_if_t *impl;
+};
+
/**
* Get the register requirements for a node.
* @param env The architecture environment.
* @param env The environment.
* @param irn The node.
* @param pos The postition of the node's operand.
- * @param cls The register class.
* @param bs The bitset all allocatable registers shall be put into.
* Note, that you can also pass NULL here. If you don't,
* make sure, the bitset is as large as the register class
* has registers.
* @return The amount of registers allocatable for that operand.
*/
-extern int arch_get_allocatable_regs(const arch_env_t *env, const ir_node *irn,
- int pos, const arch_register_class_t *cls, bitset_t *bs);
+extern int arch_get_allocatable_regs(const arch_env_t *env, const ir_node *irn, int pos, bitset_t *bs);
/**
* Check, if a register is assignable to an operand of a node.
*/
extern arch_irn_flags_t arch_irn_get_flags(const arch_env_t *env, const ir_node *irn);
+#define arch_irn_is_ignore(env, irn) 0
+ // ((arch_irn_get_flags(env, irn) & arch_irn_flags_ignore) != 0)
+
#define arch_irn_has_reg_class(env, irn, pos, cls) \
((cls) == arch_get_irn_reg_class(env, irn, pos))
+#define arch_irn_consider_in_reg_alloc(env, cls, irn) \
+ (arch_irn_has_reg_class(env, irn, -1, cls) && !arch_irn_is_ignore(env, irn))
+
/**
* Somebody who can be asked about nodes.
*/
* @param irn Some node.
* @return Operations for that irn.
*/
- const arch_irn_ops_t *(*get_irn_ops)(const arch_irn_handler_t *handler,
+ const void *(*get_irn_ops)(const arch_irn_handler_t *handler,
const ir_node *irn);
};
*/
void (*before_ra)(void *self);
+ /**
+ * Called after register allocation to lower Spills to Stores
+ * @param self The code generator
+ * @param spill The spill node to lower
+ * @return The new backend node which substitutes the spill
+ */
+ ir_node *(*lower_spill)(void *self, ir_node *spill);
+
+ /**
+ * Called after register allocation to lower Reloads to Loads
+ * @param self The code generator
+ * @param reload The reload node to lower
+ * @return The new backend node which substitutes the reload
+ */
+ ir_node *(*lower_reload)(void *self, ir_node *reload);
+
+ /**
+ * Called in lowering (e.g. alloca lowering) to set the
+ * correct stack register.
+ * @param self The code generator
+ * @return The stack register for the current irg
+ */
+ const arch_register_t *(*get_stack_register)(void *self);
+
/**
* Called after everything happened.
* The code generator must also be de-allocated here.
* @param self The this pointer.
* @return Some code generator interface.
*/
- const arch_code_generator_if_t *(*get_code_generator)(void *self);
+ const arch_code_generator_if_t *(*get_code_generator_if)(void *self);
/**
* Get the list scheduler to use.
* @return The list scheduler selector.
*/
const list_sched_selector_t *(*get_list_sched_selector)(const void *self);
+
+ /**
+ * Take a proj from a call, set the correct register and projnum for this proj
+ * @param self The isa object.
+ * @param proj The proj
+ * @param is_keep Non-zero if proj is a Keep argument
+ * @return The backend proj number assigned to this proj
+ */
+ long (*handle_call_proj)(const void *self, ir_node *proj, int is_keep);
};
#define arch_isa_get_n_reg_class(isa) ((isa)->impl->get_n_reg_class(isa))
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