-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. */
- const be_main_env_t *main_env; /** the be main environment */
-};
-
-#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.
- */
-struct _arch_isa_if_t {
-
- /**
- * Initialize the isa interface.
- * @param file_handle the file handle to write the output to
- * @param main_env the be main environment
- * @return a new isa instance
- */
- void *(*init)(FILE *file_handle);
-
- /**
- * Free the isa instance.
- */
- void (*done)(void *self);
-
- /**
- * Get the the number of register classes in the isa.
- * @return The number of register classes.
- */
- int (*get_n_reg_class)(const void *self);
-
- /**
- * Get the i-th register class.
- * @param i The number of the register class.
- * @return The register class.
- */
- 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
- * when the architecture is initialized.
- * (May be NULL).
- */
- const arch_irn_handler_t *(*get_irn_handler)(const void *self);
-
- /**
- * Get the code generator interface.
- * @param self The this pointer.
- * @return Some code generator interface.
- */
- const arch_code_generator_if_t *(*get_code_generator_if)(void *self);
-
- /**
- * Get the list scheduler to use. There is already a selector given, the
- * backend is free to modify and/or ignore it.
- *
- * @param self The isa object.
- * @param selector The selector given by options.
- * @return The list scheduler selector.
- */
- const list_sched_selector_t *(*get_list_sched_selector)(const void *self, list_sched_selector_t *selector);
-
- /**
- * 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.
- */
- int (*get_reg_class_alignment)(const void *self, const arch_register_class_t *cls);
-
- /**
- * A "static" function, returns the frontend settings
- * needed for this backend.
- */
- const backend_params *(*get_params)(void);
-
- /**
- * Returns an 2-dim array of execution units, this node can be executed on.
- * The first dimension is the type, the second the allowed units of this type.
- * Each dimension is a NULL terminated list.
- * @param self The this pointer.
- * @param irn The node
- * @return An array of allowed execution units.
- * exec_unit = {
- * { unit1_of_tp1, ..., unitX1_of_tp1, NULL },
- * ...,
- * { unit1_of_tpY, ..., unitXn_of_tpY, NULL },
- * NULL
- * };
- */
- const be_execution_unit_t ***(*get_allowed_execution_units)(const void *self, const ir_node *irn);
-
- /**
- * Return the abstyract machine for this isa.
- * @param self The this pointer.
- */
- const be_machine_t *(*get_machine)(const void *self);
-
-#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_reg_class_alignment(isa, cls) ((isa)->impl->get_reg_class_alignment((isa), (cls)))
-#define arch_isa_get_allowed_execution_units(isa, irn) ((isa)->impl->get_allowed_execution_units((isa), (irn)))
-#define arch_isa_get_machine(isa) ((isa)->impl->get_machine((isa)))
-
-#define ARCH_MAX_HANDLERS 8
-
-/**
- * Environment for the architecture infrastructure.
- * Keep this everywhere you're going.
- */
-struct _arch_env_t {
- const struct _be_node_factory_t *node_factory; /**< The node factory for be nodes. */
- arch_isa_t *isa; /**< The isa about which everything is. */
-
- arch_irn_handler_t const *handlers[ARCH_MAX_HANDLERS]; /**< The handlers are organized as
- a stack. */
-
- int handlers_tos; /**< The stack pointer of the handler
- stack. */
-};
-
-/**
- * Get the isa of an arch environment.
- * @param env The environment.
- * @return The isa with which the env was initialized with.
- */
-#define arch_env_get_isa(env) ((env)->isa)