#include <libcore/lc_opts.h>
#endif
-#include "irnode.h"
-#include "irmode.h"
+#include "firm_types.h"
#include "bitset.h"
-#include "hashptr.h"
-#include "fourcc.h"
-#include "set.h"
-#include "list.h"
-#include "ident.h"
#include "belistsched.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_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 struct _arch_code_generator_if_t arch_code_generator_if_t;
+#include "beabi_t.h"
+#include "bearch_t.h"
+#include "be_t.h"
struct _be_node_factory_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_callee_saved, /**< The register must be saved by the called function,
- it thus survives a function call. */
- arch_register_type_ignore /**< Do not consider this register when allocating. */
+ arch_register_type_caller_save = 1, /**< The register must be saved by the caller
+ upon a function call. It thus can be overwritten
+ in the called function. */
+ arch_register_type_callee_save = 2, /**< 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 = 4, /**< 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) != 0)
+
/**
* A register.
*/
struct _arch_register_class_t {
const char *name; /**< The name of the register class. */
int n_regs; /**< Number of registers in this class. */
+ ir_mode *mode; /**< The mode of the register class. */
const arch_register_t *regs; /**< The array of registers. */
};
#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. */
- union {
- int (*limited)(const ir_node *irn, int pos, bitset_t *bs);
+ arch_register_req_type_t type; /**< The type of the constraint. */
+ 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. */
- } data;
+ void *limited_env; /**< This must passed to limited. */
+
+ ir_node *other_same; /**< The other which shall have the same reg
+ as this one. (for case should_be_same). */
+
+ ir_node *other_different; /**< The other node from which this one's register
+ must be different (case must_be_different). */
} arch_register_req_t;
/**
- * Certain node classes which are relevent for the register allocator.
+ * Format a register requirements information into a string.
+ * @param buf The string where to put it to.
+ * @param len The size of @p buf.
+ * @param req The requirements structure to format.
+ * @return A pointer to buf.
+ */
+extern char *arch_register_req_format(char *buf, size_t len, const arch_register_req_t *req);
+
+
+/**
+ * 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_none = 0, /**< Node flags. */
+ 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, /**< Ignore node during register allocation. */
+ arch_irn_flags_last = arch_irn_flags_ignore
} arch_irn_flags_t;
-struct _arch_irn_ops_t {
+/**
+ * Get the string representation of a flag.
+ * This functions does not handle or'ed bitmasks of flags.
+ * @param flag The flag.
+ * @return The flag as a string.
+ */
+extern const char *arch_irn_flag_str(arch_irn_flags_t flag);
+
+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);
+
+ /**
+ * Get the entity on the stack frame this node depends on.
+ * @param self The this pointer.
+ * @param irn The node in question.
+ * @return The entity on the stack frame or NULL, if the node does not has a stack frame entity.
+ */
+ entity *(*get_frame_entity)(const void *self, const ir_node *irn);
+
+ /**
+ * Set the offset of a node carrying an entity on the stack frame.
+ * @param self The this pointer.
+ * @param irn The node.
+ * @param offset The offset of the node's stack frame entity.
+ */
+ void (*set_frame_offset)(const void *self, ir_node *irn, int offset);
+};
+/**
+ * irn_ops base class.
+ */
+struct _arch_irn_ops_t {
+ const arch_irn_ops_if_t *impl;
};
+extern void arch_set_frame_offset(const arch_env_t *env, ir_node *irn, int bias);
+
+extern entity *arch_get_frame_entity(const arch_env_t *env, ir_node *irn);
+
/**
* 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);
+
+/**
+ * Put all registers which shall not be ignored by the register
+ * allocator in a bit set.
+ * @param env The arch env.
+ * @param cls The register class to consider.
+ * @param bs The bit set to put the registers to.
+ */
+extern void arch_put_non_ignore_regs(const arch_env_t *env, const arch_register_class_t *cls, bitset_t *bs);
/**
* Check, if a register is assignable to an operand of a node.
/**
* Get the register allocated at a certain output operand of a node.
- * @param env The arch nvironment.
+ * @param env The arch environment.
* @param irn The node.
* @return The register allocated for this operand
*/
*/
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) ((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);
};
*/
struct _arch_code_generator_if_t {
+
+ /**
+ * Initialize the code generator.
+ * @param file The file to dump to.
+ * @param birg A backend IRG session.
+ * @return A newly created code generator.
+ */
+ void *(*init)(FILE *file, const be_irg_t *birg);
+
+ /**
+ * Called before abi introduce.
+ */
+ void (*before_abi)(void *self);
+
/**
* Called, when the graph is being normalized.
*/
*/
void (*before_ra)(void *self);
+ /**
+ * Called after register allocation.
+ */
+ void (*after_ra)(void *self);
+
/**
* Called after everything happened.
* The code generator must also be de-allocated here.
(cg)->impl->func(cg); \
} while(0)
+#define arch_code_generator_before_abi(cg) _arch_cg_call(cg, before_abi)
#define arch_code_generator_prepare_graph(cg) _arch_cg_call(cg, prepare_graph)
#define arch_code_generator_before_sched(cg) _arch_cg_call(cg, before_sched)
#define arch_code_generator_before_ra(cg) _arch_cg_call(cg, before_ra)
+#define arch_code_generator_after_ra(cg) _arch_cg_call(cg, after_ra)
#define arch_code_generator_done(cg) _arch_cg_call(cg, done)
/**
*/
struct _arch_isa_t {
const arch_isa_if_t *impl;
+ const arch_register_t *sp; /** The stack pointer register. */
+ const arch_register_t *bp; /** The base pointer register. */
+ const int stack_dir; /** -1 for decreasing, 1 for increasing. */
};
+#define arch_isa_stack_dir(isa) ((isa)->stack_dir)
+#define arch_isa_sp(isa) ((isa)->sp)
+#define arch_isa_bp(isa) ((isa)->bp)
+
/**
* Architecture interface.
*/
/**
* Initialize the isa interface.
*/
- void *(*init)(FILE *file_handle);
+ void *(*init)(void);
/**
* Free the isa instance.
*/
const arch_register_class_t *(*get_reg_class)(const void *self, int i);
+ /**
+ * Get the register class which shall be used to store a value of a given mode.
+ * @param self The this pointer.
+ * @param mode The mode in question.
+ * @return A register class which can hold values of the given mode.
+ */
+ const arch_register_class_t *(*get_reg_class_for_mode)(const void *self, const ir_mode *mode);
+
+ /**
+ * Get the ABI restrictions for procedure calls.
+ * @param self The this pointer.
+ * @param method_type The type of the method (procedure) in question.
+ * @param p The array of parameter locations to be filled.
+ */
+ void (*get_call_abi)(const void *self, ir_type *method_type, be_abi_call_t *abi);
+
/**
* The irn handler for this architecture.
* The irn handler is registered by the Firm back end
const arch_irn_handler_t *(*get_irn_handler)(const void *self);
/**
- * Produce a new code generator.
+ * Get the code generator interface.
* @param self The this pointer.
- * @param irg The graph for which code shall be generated.
- * @return A code generator.
+ * @return Some code generator interface.
*/
- arch_code_generator_t *(*make_code_generator)(void *self, ir_graph *irg);
+ 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);
+
};
-#define arch_isa_get_n_reg_class(isa) ((isa)->impl->get_n_reg_class(isa))
-#define arch_isa_get_reg_class(isa,i) ((isa)->impl->get_reg_class(isa, i))
-#define arch_isa_get_irn_handler(isa) ((isa)->impl->get_irn_handler(isa))
-#define arch_isa_make_code_generator(isa,irg) ((isa)->impl->make_code_generator(isa, irg))
+#define arch_isa_get_n_reg_class(isa) ((isa)->impl->get_n_reg_class(isa))
+#define arch_isa_get_reg_class(isa,i) ((isa)->impl->get_reg_class(isa, i))
+#define arch_isa_get_irn_handler(isa) ((isa)->impl->get_irn_handler(isa))
+#define arch_isa_get_call_abi(isa,tp,abi) ((isa)->impl->get_call_abi((isa), (tp), (abi)))
+#define arch_isa_get_reg_class_for_mode(isa,mode) ((isa)->impl->get_reg_class_for_mode((isa), (mode)))
+#define arch_isa_make_code_generator(isa,irg) ((isa)->impl->make_code_generator(isa, irg))
#define ARCH_MAX_HANDLERS 8
* @param isa The isa which shall be put into the environment.
* @return The environment.
*/
-extern arch_env_t *arch_env_init(arch_env_t *env, const arch_isa_if_t *isa, FILE *file_handle);
+extern arch_env_t *arch_env_init(arch_env_t *env, const arch_isa_if_t *isa);
/**
* Add a node handler to the environment.
* @param handler A node handler.
* @return The environment itself.
*/
-extern arch_env_t *arch_env_add_irn_handler(arch_env_t *env,
- const arch_irn_handler_t *handler);
+extern arch_env_t *arch_env_push_irn_handler(arch_env_t *env, const arch_irn_handler_t *handler);
+
+/**
+ * Remove a node handler from the handler stack.
+ * @param env The architecture environment.
+ * @return The popped handler.
+ */
+extern const arch_irn_handler_t *arch_env_pop_irn_handler(arch_env_t *env);
#endif /* _FIRM_BEARCH_H */
projects / libfirm / blobdiff