#ifndef _FIRM_BEARCH_H
#define _FIRM_BEARCH_H
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
+#include "firm_config.h"
#ifdef WITH_LIBCORE
#include <libcore/lc_opts.h>
#endif
-#include "type.h"
-
-#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"
#include "beabi_t.h"
-
-typedef struct _arch_register_class_t arch_register_class_t;
-typedef struct _arch_register_t arch_register_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 struct _arch_code_generator_if_t arch_code_generator_if_t;
+#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_none = 0,
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_sp = 8, /**< This register is the stack pointer of the architecture. */
- arch_register_type_bp = 16, /**< The register is the base pointer of the architecture. */
+ arch_register_type_ignore = 4, /**< Do not consider this register when allocating. */
} 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)
+ (((reg)->type & arch_register_type_ ## kind) != 0)
/**
* A register.
const arch_register_t *regs; /**< The array of registers. */
};
+/** return the number of registers in this register class */
#define arch_register_class_n_regs(cls) ((cls)->n_regs)
+/** return the largest mode of this register class */
+#define arch_register_class_mode(cls) ((cls)->mode)
+
/**
* Put all registers in a class into a bitset.
* @param cls The class.
arch_register_req_type_should_be_different = 8, /**< The register must be unequal
to some other at the node. */
+ arch_register_req_type_should_be_different_from_all = 16, /**< The register must be different from
+ all in's at the node */
} arch_register_req_type_t;
/**
must be different (case must_be_different). */
} arch_register_req_t;
+/**
+ * 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.
*/
arch_irn_class_copy,
arch_irn_class_perm,
arch_irn_class_branch,
- arch_irn_class_call
+ arch_irn_class_call,
+ arch_irn_class_const,
} arch_irn_class_t;
+/**
+ * An inverse operation returned by the backend
+ */
+typedef struct _arch_inverse_t {
+ int n; /**< count of nodes returned in nodes array */
+ int costs; /**< costs of this remat */
+
+ /**> nodes for this inverse operation. shall be in
+ * schedule order. last element is the target value
+ */
+ ir_node **nodes;
+} arch_inverse_t;
+
/**
* Some flags describing a node in more detail.
*/
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, /**< Do not consider the node during register allocation. */
+ arch_irn_flags_ignore = 4, /**< Ignore node during register allocation. */
+ arch_irn_flags_modify_sp = 8, /**< I modify the stack pointer. */
+ arch_irn_flags_last = arch_irn_flags_modify_sp
} arch_irn_flags_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 {
/**
*/
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);
+
+ /**
+ * Returns an inverse operation which yields the i-th argument
+ * of the given node as result.
+ *
+ * @param irn The original operation
+ * @param i Index of the argument we want the inverse oparation to yield
+ * @param inverse struct to be filled with the resulting inverse op
+ * @param obstack The obstack to use for allocation of the returned nodes array
+ * @return The inverse operation or NULL if operation invertible
+ */
+ arch_inverse_t *(*get_inverse)(const void *self, const ir_node * irn, int i, arch_inverse_t * inverse, struct obstack * obstack);
+
};
/**
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);
+
+extern arch_inverse_t *arch_get_inverse(const arch_env_t *env, const ir_node * irn, int i, arch_inverse_t * inverse, struct obstack * obstack);
+
/**
* Get the register requirements for a node.
* @param env The architecture environment.
* Get the register class of an operand of a node.
* @param env The architecture environment.
* @param irn The node.
- * @param pos The position of the operand.
+ * @param pos The position of the operand, -1 for the output.
* @return The register class of the operand or NULL, if
* operand is a non-register 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_is(env, irn, flag) ((arch_irn_get_flags(env, irn) & arch_irn_flags_ ## flag) != 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))
+ (arch_irn_has_reg_class(env, irn, -1, cls) && !arch_irn_is(env, irn, ignore))
/**
- * Somebody who can be asked about nodes.
+ * Somebody who can be asked about IR nodes.
*/
struct _arch_irn_handler_t {
*/
const void *(*get_irn_ops)(const arch_irn_handler_t *handler,
const ir_node *irn);
-
};
/**
- * The code generator.
+ * The code generator interface.
*/
struct _arch_code_generator_if_t {
-
-
/**
* Initialize the code generator.
- * @param file The file to dump to.
- * @param irg The function to generate code for.
- * @param env The architecture environment.
+ * @param birg A backend IRG session.
* @return A newly created code generator.
*/
- void *(*init)(FILE *file, ir_graph *irg, const arch_env_t *env);
+ void *(*init)(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 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
+ * Called after register allocation.
*/
- const arch_register_t *(*get_stack_register)(void *self);
+ void (*after_ra)(void *self);
/**
* Called after everything happened.
* The code generator must also be de-allocated here.
*/
void (*done)(void *self);
-
};
+/**
+ * helper macro: call function func from the code generator
+ * if it's implemented.
+ */
#define _arch_cg_call(cg, func) \
do { \
if((cg)->impl->func) \
(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_if_t {
-#ifdef WITH_LIBCORE
- void (*register_options)(lc_opt_entry_t *grp);
-#endif
-
/**
* Initialize the isa interface.
+ * @param file_handle the file handle to write the output to
+ * @return a new isa instance
*/
- void *(*init)(void);
+ void *(*init)(FILE *file_handle);
/**
* Free the isa instance.
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
+ * Get the necessary alignment for storing a register of given class.
+ * @param self The isa object.
+ * @param cls The register class.
+ * @return The alignment in bytes.
*/
- long (*handle_call_proj)(const void *self, ir_node *proj, int is_keep);
+ int (*get_reg_class_alignment)(const void *self, const arch_register_class_t *cls);
+
+#ifdef WITH_LIBCORE
+ /**
+ * Register command line options for this backend.
+ * @param grp The root group.
+ */
+ void (*register_options)(lc_opt_entry_t *grp);
+#endif
};
-#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_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_isa_get_reg_class_alignment(isa, cls) ((isa)->impl->get_reg_class_alignment((isa), (cls)))
#define ARCH_MAX_HANDLERS 8
/**
* Initialize the architecture environment struct.
- * @param isa The isa which shall be put into the environment.
+ * @param isa The isa which shall be put into the environment.
+ * @param file_handle The file handle
* @return The environment.
*/
-extern arch_env_t *arch_env_init(arch_env_t *env, const arch_isa_if_t *isa);
+extern arch_env_t *arch_env_init(arch_env_t *env, const arch_isa_if_t *isa, FILE *file_handle);
/**
* 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 */
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