#include "bitset.h"
#include "belistsched.h"
+#include "beilpsched.h"
#include "beabi_t.h"
#include "bearch_t.h"
#include "be_t.h"
+#include "bemachine.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.
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
*/
extern void arch_put_non_ignore_regs(const arch_env_t *env, const arch_register_class_t *cls, bitset_t *bs);
-/**
- * Return the number of registers in a register class which should not be
- * ignored by the register allocator.
- * @param env The architecture environment.
- * @param cls The register class to consider
- * @return The number of non-ignore registers in the register class
- */
-extern int arch_count_non_ignore_regs(const arch_env_t *env, const arch_register_class_t *cls);
-
/**
* Check, if a register is assignable to an operand of a node.
* @param env The architecture environment.
*/
void (*prepare_graph)(void *self);
+ /**
+ * Backend may provide an own spiller.
+ * This spiller needs to spill all register classes.
+ */
+ void (*spill)(void *self, void *env);
+
/**
* Called before scheduling.
*/
(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_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, env) _arch_cg_call_env(cg, env, 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)
/**
* Initialize the isa interface.
- * @param file_handle the file handle to write the output to
- * @return a new isa instance
+ * @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);
const arch_code_generator_if_t *(*get_code_generator_if)(void *self);
/**
- * Get the list scheduler to use.
+ * 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 ILP scheduler to use.
* @param self The isa object.
- * @return The list scheduler selector.
+ * @return The ILP scheduler selector
*/
- const list_sched_selector_t *(*get_list_sched_selector)(const void *self);
+ const ilp_sched_selector_t *(*get_ilp_sched_selector)(const void *self);
/**
* Get the necessary alignment for storing a register of given class.
*/
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);
+
#ifdef WITH_LIBCORE
/**
* Register command line options for this backend.
#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_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);
-
#endif /* _FIRM_BEARCH_H */
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