X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbearch.h;h=743b9061cf17dfd276b7c84e2e2ef3505e1ba5f0;hb=7438ae082c9ec7658ccd006b40aa62084aedca2d;hp=e20b8360e53f63169bc6e704f0bb8b2a016a07e9;hpb=6588fc8e832dbc7cc7b353ce9dae05db33180b6e;p=libfirm diff --git a/ir/be/bearch.h b/ir/be/bearch.h index e20b8360e..743b9061c 100644 --- a/ir/be/bearch.h +++ b/ir/be/bearch.h @@ -1,48 +1,32 @@ #ifndef _FIRM_BEARCH_H #define _FIRM_BEARCH_H -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - +#include "firm_config.h" #ifdef WITH_LIBCORE #include #endif -#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" - -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_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 "beabi_t.h" +#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_write_invariant, - arch_register_type_caller_saved, /**< 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_saved, /**< The register must be saved by the called function, - it thus survives a function call. */ - arch_register_type_ignore /**< 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_t; /** @@ -52,7 +36,7 @@ typedef enum _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. @@ -87,6 +71,7 @@ static INLINE int _arch_register_get_index(const arch_register_t *reg) struct _arch_register_class_t { const char *name; /**< The name of the register class. */ int n_regs; /**< Number of registers in this class. */ + ir_mode *mode; /**< The mode of the register class. */ const arch_register_t *regs; /**< The array of registers. */ }; @@ -110,13 +95,6 @@ _arch_register_for_index(const arch_register_class_t *cls, int idx) #define arch_register_for_index(cls, idx) \ _arch_register_for_index(cls, idx) -/** - * Get the register set for a register class. - * @param cls The register class. - * @return The set containing all registers in the class. - */ -#define arch_get_register_set_for_class(cls) ((cls)->set) - typedef enum _arch_operand_type_t { arch_operand_type_invalid, arch_operand_type_memory, @@ -162,7 +140,7 @@ typedef struct _arch_register_req_t { arch_register_req_type_t type; /**< The type of the constraint. */ const arch_register_class_t *cls; /**< The register class this constraint belongs to. */ - int (*limited)(const ir_node *irn, int pos, bitset_t *bs); + void (*limited)(void *limited_env, bitset_t *bs); /**< In case of the 'limited' constraint, this function must put all allowable @@ -170,12 +148,25 @@ typedef struct _arch_register_req_t { return the number of registers in the bitset. */ - ir_node *other; /**< In case of "should be equal" - or should be different, this gives - the node to whose register this - one's should be the same/different. */ + void *limited_env; /**< This must passed to limited. */ + + ir_node *other_same; /**< The other which shall have the same reg + as this one. (for case should_be_same). */ + + ir_node *other_different; /**< The other node from which this one's register + 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. */ @@ -193,11 +184,22 @@ typedef enum _arch_irn_class_t { * Some flags describing a node in more detail. */ typedef enum _arch_irn_flags_t { - arch_irn_flags_spillable = 1, - arch_irn_flags_rematerializable = 2 + 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, /**< Ignore node during register allocation. */ + arch_irn_flags_last = arch_irn_flags_ignore } arch_irn_flags_t; -struct _arch_irn_ops_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 { /** * Get the register requirements for a given operand. @@ -209,7 +211,7 @@ struct _arch_irn_ops_t { * @return The register requirements for the selected operand. * The pointer returned is never NULL. */ - const arch_register_req_t *(*get_irn_reg_req)(const arch_irn_ops_t *self, + const arch_register_req_t *(*get_irn_reg_req)(const void *self, arch_register_req_t *req, const ir_node *irn, int pos); /** @@ -219,7 +221,7 @@ struct _arch_irn_ops_t { * @note If the operand is not a register operand, * the call is ignored. */ - void (*set_irn_reg)(const arch_irn_ops_t *self, ir_node *irn, const arch_register_t *reg); + void (*set_irn_reg)(const void *self, ir_node *irn, const arch_register_t *reg); /** * Get the register allocated for an output operand. @@ -229,14 +231,14 @@ struct _arch_irn_ops_t { * @c arch_register_invalid, if no register has yet been * allocated for this node. */ - const arch_register_t *(*get_irn_reg)(const arch_irn_ops_t *self, const ir_node *irn); + const arch_register_t *(*get_irn_reg)(const void *self, const ir_node *irn); /** * Classify the node. * @param irn The node. * @return A classification. */ - arch_irn_class_t (*classify)(const arch_irn_ops_t *self, const ir_node *irn); + arch_irn_class_t (*classify)(const void *self, const ir_node *irn); /** * Get the flags of a node. @@ -244,10 +246,36 @@ struct _arch_irn_ops_t { * @param irn The node. * @return A set of flags. */ - arch_irn_flags_t (*get_flags)(const arch_irn_ops_t *self, const ir_node *irn); + 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); +}; +/** + * irn_ops base class. + */ +struct _arch_irn_ops_t { + 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); + /** * Get the register requirements for a node. * @param env The architecture environment. @@ -280,15 +308,22 @@ extern int arch_is_register_operand(const arch_env_t *env, * @param env The environment. * @param irn The node. * @param pos The postition of the node's operand. - * @param cls The register class. * @param bs The bitset all allocatable registers shall be put into. * Note, that you can also pass NULL here. If you don't, * make sure, the bitset is as large as the register class * has registers. * @return The amount of registers allocatable for that operand. */ -extern int arch_get_allocatable_regs(const arch_env_t *env, const ir_node *irn, - int pos, const arch_register_class_t *cls, bitset_t *bs); +extern int arch_get_allocatable_regs(const arch_env_t *env, const ir_node *irn, int pos, bitset_t *bs); + +/** + * Put all registers which shall not be ignored by the register + * allocator in a bit set. + * @param env The arch env. + * @param cls The register class to consider. + * @param bs The bit set to put the registers to. + */ +extern void arch_put_non_ignore_regs(const arch_env_t *env, const arch_register_class_t *cls, bitset_t *bs); /** * Check, if a register is assignable to an operand of a node. @@ -347,9 +382,14 @@ extern arch_irn_class_t arch_irn_classify(const arch_env_t *env, const ir_node * */ 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_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)) + /** * Somebody who can be asked about nodes. */ @@ -361,7 +401,7 @@ struct _arch_irn_handler_t { * @param irn Some node. * @return Operations for that irn. */ - const arch_irn_ops_t *(*get_irn_ops)(const arch_irn_handler_t *handler, + const void *(*get_irn_ops)(const arch_irn_handler_t *handler, const ir_node *irn); }; @@ -375,11 +415,15 @@ 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)(FILE *file, const be_irg_t *birg); + + /** + * Called before abi introduce. + */ + void (*before_abi)(void *self); /** * Called, when the graph is being normalized. @@ -396,6 +440,11 @@ struct _arch_code_generator_if_t { */ void (*before_ra)(void *self); + /** + * Called after register allocation. + */ + void (*after_ra)(void *self); + /** * Called after everything happened. * The code generator must also be de-allocated here. @@ -410,9 +459,11 @@ do { \ (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) /** @@ -427,8 +478,15 @@ struct _arch_code_generator_t { */ 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. */ }; +#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. */ @@ -461,6 +519,22 @@ struct _arch_isa_if_t { */ 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 @@ -474,7 +548,7 @@ struct _arch_isa_if_t { * @param self The this pointer. * @return Some code generator interface. */ - const arch_code_generator_if_t *(*get_code_generator)(void *self); + const arch_code_generator_if_t *(*get_code_generator_if)(void *self); /** * Get the list scheduler to use. @@ -483,19 +557,14 @@ struct _arch_isa_if_t { */ const list_sched_selector_t *(*get_list_sched_selector)(const void *self); - /** - * Get the proj number assigned to the register. - * @param self The isa object. - * @param reg The register - * @return The proj number assigned to this register - */ - long (*get_projnum_for_register)(const void *self, const arch_register_t *reg); }; -#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_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_MAX_HANDLERS 8 @@ -534,7 +603,13 @@ extern arch_env_t *arch_env_init(arch_env_t *env, const arch_isa_if_t *isa); * @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 */