#include "bitset.h"
#include "belistsched.h"
+#include "beilpsched.h"
#include "beabi_t.h"
#include "bearch_t.h"
#include "be_t.h"
+#include "bemachine.h"
+#include "beirg.h"
struct _be_node_factory_t;
typedef enum _arch_register_type_t {
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_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_joker = 8, /**< The emitter can choose an arbitrary register */
+ arch_register_type_virtual = 16, /**< This is just a virtual register */
} arch_register_type_t;
/**
* A register.
*/
struct _arch_register_t {
- const char *name; /**< The name of the register. */
+ const char *name; /**< The name of the register. */
const arch_register_class_t *reg_class; /**< The class the register belongs to. */
- int index; /**< The index of the register in the class. */
- arch_register_type_t type; /**< The type of the register. */
- void *data; /**< Custom data. */
+ int index; /**< The index of the register in the class. */
+ arch_register_type_t type; /**< The type of the register. */
+ void *data; /**< Custom data. */
};
static INLINE const arch_register_class_t *
return reg->index;
}
+static INLINE const char *_arch_register_get_name(const arch_register_t *reg)
+{
+ return reg->name;
+}
+
#define arch_register_get_class(reg) _arch_register_get_class(reg)
#define arch_register_get_index(reg) _arch_register_get_index(reg)
-#define arch_register_get_name(reg) ((reg)->name)
+#define arch_register_get_name(reg) _arch_register_get_name(reg)
/**
* A class of registers.
/** return the largest mode of this register class */
#define arch_register_class_mode(cls) ((cls)->mode)
+/** return the name of this register class */
+#define arch_register_class_name(cls) ((cls)->name)
+
/**
* Put all registers in a class into a bitset.
* @param cls The class.
* Certain node classes which are relevant for the register allocator.
*/
typedef enum _arch_irn_class_t {
- arch_irn_class_normal,
- arch_irn_class_spill,
- arch_irn_class_reload,
- arch_irn_class_copy,
- arch_irn_class_perm,
- arch_irn_class_branch,
- arch_irn_class_call,
- arch_irn_class_const,
+ arch_irn_class_normal = 1 << 0,
+ arch_irn_class_spill = 1 << 1,
+ arch_irn_class_reload = 1 << 2,
+ arch_irn_class_copy = 1 << 3,
+ arch_irn_class_perm = 1 << 4,
+ arch_irn_class_branch = 1 << 5,
+ arch_irn_class_call = 1 << 6,
+ arch_irn_class_const = 1 << 7,
+ arch_irn_class_load = 1 << 8,
+ arch_irn_class_store = 1 << 9,
+ arch_irn_class_stackparam = 1 << 10,
} arch_irn_class_t;
/**
typedef enum _arch_irn_flags_t {
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_rematerializable = 2, /**< This can be replicated instead of spilled/reloaded. */
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
* 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.
+ * @return The entity on the stack frame or NULL, if the node does not have a
+ * stack frame entity.
*/
- entity *(*get_frame_entity)(const void *self, const ir_node *irn);
+ ir_entity *(*get_frame_entity)(const void *self, const ir_node *irn);
+
+ /**
+ * Set the entity on the stack frame this node depends on.
+ * @param self The this pointer.
+ * @param irn The node in question.
+ * @param ent The entity to set
+ */
+ void (*set_frame_entity)(const void *self, ir_node *irn, ir_entity *ent);
/**
* Set the offset of a node carrying an entity on the stack frame.
*/
void (*set_frame_offset)(const void *self, ir_node *irn, int offset);
+ /**
+ * Returns the delta of the stackpointer for nodes that increment or
+ * decrement the stackpointer with a constant value. (push, pop
+ * nodes on most architectures).
+ * A positive value stands for an expanding stack area, a negative value for
+ * a shrinking one.
+ *
+ * @param self The this pointer
+ * @param irn The node
+ * @return 0 if the stackpointer is not modified with a constant
+ * value, otherwise the increment/decrement value
+ */
+ int (*get_sp_bias)(const void *self, const ir_node *irn);
+
/**
* Returns an inverse operation which yields the i-th argument
* of the given node as result.
*
+ * @param self The this pointer.
* @param irn The original operation
* @param i Index of the argument we want the inverse operation to yield
* @param inverse struct to be filled with the resulting inverse op
*/
arch_inverse_t *(*get_inverse)(const void *self, const ir_node *irn, int i, arch_inverse_t *inverse, struct obstack *obstack);
+ /**
+ * Get the estimated cycle count for @p irn.
+ *
+ * @param self The this pointer.
+ * @param irn The node.
+ *
+ * @return The estimated cycle count for this operation
+ */
+ int (*get_op_estimated_cost)(const void *self, const ir_node *irn);
+
+ /**
+ * Asks the backend whether operand @p i of @p irn can be loaded form memory internally
+ *
+ * @param self The this pointer.
+ * @param irn The node.
+ * @param i Index of the argument we would like to know whether @p irn can load it form memory internally
+ *
+ * @return nonzero if argument can be loaded or zero otherwise
+ */
+ int (*possible_memory_operand)(const void *self, const ir_node *irn, unsigned int i);
+
+ /**
+ * Ask the backend to assimilate @p reload of operand @p i into @p irn.
+ *
+ * @param self The this pointer.
+ * @param irn The node.
+ * @param spill The spill.
+ * @param i The position of the reload.
+ */
+ void (*perform_memory_operand)(const void *self, ir_node *irn, ir_node *spill, unsigned int i);
};
/**
const arch_irn_ops_if_t *impl;
};
+extern const arch_irn_ops_t *arch_get_irn_ops(const arch_env_t *env, const ir_node *irn);
+
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 ir_entity *arch_get_frame_entity(const arch_env_t *env, ir_node *irn);
+extern void arch_set_frame_entity(const arch_env_t *env, ir_node *irn, ir_entity *ent);
+extern int arch_get_sp_bias(const arch_env_t *env, ir_node *irn);
+extern int arch_get_op_estimated_cost(const arch_env_t *env, const 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);
+extern int arch_possible_memory_operand(const arch_env_t *env, const ir_node *irn, unsigned int i);
+extern void arch_perform_memory_operand(const arch_env_t *env, ir_node *irn, ir_node *spill, unsigned int i);
/**
* Get the register requirements for a node.
*/
extern arch_irn_class_t arch_irn_classify(const arch_env_t *env, const ir_node *irn);
+#define arch_irn_class_is(env, irn, irn_class) ((arch_irn_classify(env, irn) & arch_irn_class_ ## irn_class) != 0)
+
/**
* Get the flags of a node.
* @param env The architecture environment.
* @param birg A backend IRG session.
* @return A newly created code generator.
*/
- void *(*init)(const be_irg_t *birg);
+ void *(*init)(be_irg_t *birg);
/**
* Called before abi introduce.
*/
void (*prepare_graph)(void *self);
+ /**
+ * Backend may provide an own spiller.
+ * This spiller needs to spill all register classes.
+ */
+ void (*spill)(void *self, be_irg_t *birg);
+
/**
* Called before scheduling.
*/
void (*after_ra)(void *self);
/**
- * Called after everything happened.
+ * Called directly before done is called. This should be the last place
+ * where the irg is modified.
+ */
+ void (*finish)(void *self);
+
+ /**
+ * Called after everything happened. This call should emit the final
+ * assembly code but avoid changing the irg.
* The code generator must also be de-allocated here.
*/
void (*done)(void *self);
(cg)->impl->func(cg); \
} while(0)
+#define _arch_cg_call_env(cg, env, func) \
+do { \
+ if((cg)->impl->func) \
+ (cg)->impl->func(cg, env); \
+} 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_finish(cg) _arch_cg_call(cg, finish)
#define arch_code_generator_done(cg) _arch_cg_call(cg, done)
+#define arch_code_generator_spill(cg, birg) _arch_cg_call_env(cg, birg, spill)
+#define arch_code_generator_has_spiller(cg) ((cg)->impl->spill != NULL)
/**
* Code generator base class.
* ISA base class.
*/
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 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)
* Architecture interface.
*/
struct _arch_isa_if_t {
-
- /**
- * Initialize the isa interface.
+ /**
+ * 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);
+ */
+ void *(*init)(FILE *file_handle);
- /**
- * Free the isa instance.
- */
- void (*done)(void *self);
+ /**
+ * 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 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 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 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);
+ /**
+ * 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);
+ /**
+ * 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 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.
- * @param self The isa object.
- * @return The list scheduler selector.
- */
- const list_sched_selector_t *(*get_list_sched_selector)(const 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);
+ /**
+ * Get the ILP scheduler to use.
+ * @param self The isa object.
+ * @return The ILP scheduler selector
+ */
+ const ilp_sched_selector_t *(*get_ilp_sched_selector)(const void *self);
-#ifdef WITH_LIBCORE
/**
- * Register command line options for this backend.
- * @param grp The root group.
+ * 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.
*/
- void (*register_options)(lc_opt_entry_t *grp);
-#endif
+ 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, @p irn 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 isa object.
+ * @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 abstract machine for this isa.
+ * @param self The isa object.
+ */
+ const be_machine_t *(*get_machine)(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_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_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
* @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, FILE *file_handle);
+extern arch_env_t *arch_env_init(arch_env_t *env, const arch_isa_if_t *isa, FILE *file_handle, be_main_env_t *main_env);
/**
* Add a node handler to the environment.
*/
extern const arch_irn_handler_t *arch_env_pop_irn_handler(arch_env_t *env);
+/**
+ * Register an instruction set architecture
+ */
+void be_register_isa_if(const char *name, const arch_isa_if_t *isa);
+
#endif /* _FIRM_BEARCH_H */
projects / libfirm / blobdiff