X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbearch.h;h=a9c13db11c66feeaca367c4ebc50e737737c10b6;hb=b9d45e08e23bcf058fa8f2d9e18dd78e8cccd044;hp=e6d1431d3024ffd42975cc2e8e8802c0115ce50e;hpb=cbfbedae75798a9830fb0ef090189345ede85dc8;p=libfirm diff --git a/ir/be/bearch.h b/ir/be/bearch.h index e6d1431d3..a9c13db11 100644 --- a/ir/be/bearch.h +++ b/ir/be/bearch.h @@ -209,7 +209,7 @@ typedef struct _arch_inverse_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 @@ -296,6 +296,20 @@ struct _arch_irn_ops_if_t { */ 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. @@ -335,10 +349,10 @@ struct _arch_irn_ops_if_t { * * @param self The this pointer. * @param irn The node. - * @param reload The reload. + * @param spill The spill. * @param i The position of the reload. */ - void (*perform_memory_operand)(const void *self, ir_node *irn, ir_node *reload, unsigned int i); + void (*perform_memory_operand)(const void *self, ir_node *irn, ir_node *spill, unsigned int i); }; /** @@ -354,11 +368,12 @@ 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 void arch_set_frame_entity(const arch_env_t *env, ir_node *irn, 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 *reload, 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. @@ -409,15 +424,6 @@ extern int arch_get_allocatable_regs(const arch_env_t *env, const ir_node *irn, */ 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. @@ -579,10 +585,11 @@ struct _arch_code_generator_t { * ISA base class. */ struct _arch_isa_t { - const arch_isa_if_t *impl; + 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) @@ -596,8 +603,9 @@ struct _arch_isa_if_t { /** * 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); @@ -651,11 +659,14 @@ struct _arch_isa_if_t { const arch_code_generator_if_t *(*get_code_generator_if)(void *self); /** - * Get the list scheduler to use. - * @param self The isa object. + * 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); + 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. @@ -718,7 +729,7 @@ struct _arch_env_t { * @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. @@ -735,5 +746,4 @@ extern arch_env_t *arch_env_push_irn_handler(arch_env_t *env, const arch_irn_han */ extern const arch_irn_handler_t *arch_env_pop_irn_handler(arch_env_t *env); - #endif /* _FIRM_BEARCH_H */