X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbearch.h;h=c8bbac68d204c564d256dfb7604c89bbe21d7f88;hb=69ea35dad47322047ab3fc29f639d332d4f7c360;hp=1cc535d70a0fa3108db96e91627ef36489c44bcc;hpb=3f1d2fb001738ccea94f601a71a21d6dbf8ad8a9;p=libfirm diff --git a/ir/be/bearch.h b/ir/be/bearch.h index 1cc535d70..c8bbac68d 100644 --- a/ir/be/bearch.h +++ b/ir/be/bearch.h @@ -110,19 +110,6 @@ void arch_dump_register_req(FILE *F, const arch_register_req_t *req, void arch_dump_register_reqs(FILE *F, const ir_node *node); void arch_dump_reqs_and_registers(FILE *F, const ir_node *node); -/** - * Node classification. Used for statistics and for detecting reload nodes. - */ -typedef enum arch_irn_class_t { - arch_irn_class_none = 0, - arch_irn_class_spill = 1 << 0, - arch_irn_class_reload = 1 << 1, - arch_irn_class_remat = 1 << 2, - arch_irn_class_copy = 1 << 3, - arch_irn_class_perm = 1 << 4 -} arch_irn_class_t; -ENUM_BITSET(arch_irn_class_t) - void arch_set_frame_offset(ir_node *irn, int bias); ir_entity *arch_get_frame_entity(const ir_node *irn); @@ -225,20 +212,10 @@ static inline unsigned arch_get_irn_n_outs(const ir_node *node) } /** - * Classify a node. - * @param irn The node. - * @return A classification of the node. - */ -arch_irn_class_t arch_irn_classify(const ir_node *irn); - -/** - * Initialize the architecture environment struct. - * @param isa The isa which shall be put into the environment. - * @param file_handle The file handle - * @return The environment. + * Start codegeneration */ -extern arch_env_t *arch_env_init(const arch_isa_if_t *isa, - be_main_env_t *main_env); +arch_env_t *arch_env_begin_codegeneration(const arch_isa_if_t *isa, + be_main_env_t *main_env); /** * Register an instruction set architecture @@ -253,11 +230,13 @@ struct arch_register_t { const arch_register_class_t *reg_class; /**< The class of the register */ unsigned short index; /**< The index of the register in the class. */ - unsigned short global_index; /** The global index this register - in the architecture. */ + unsigned short global_index; /**< The global index this + register in the architecture. */ arch_register_type_t type; /**< The type of the register. */ /** register constraint allowing just this register */ const arch_register_req_t *single_req; + /** register number in dwarf debugging format */ + unsigned short dwarf_number; }; static inline const arch_register_class_t *arch_register_get_class( @@ -330,14 +309,16 @@ 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. */ - const unsigned *limited; /**< allowed register bitset */ - unsigned other_same; /**< Bitmask of ins which should use the - same register (should_be_same). */ - unsigned other_different; /**< Bitmask of ins which shall use a - different register - (must_be_different) */ - unsigned char width; /**< specifies how many sequential - registers are required */ + const unsigned *limited; /**< allowed register bitset + (in case of wide-values this is + only about the first register) */ + unsigned other_same; /**< Bitmask of ins which should use the + same register (should_be_same). */ + unsigned other_different; /**< Bitmask of ins which shall use a + different register + (must_be_different) */ + unsigned char width; /**< specifies how many sequential + registers are required */ }; static inline bool reg_reqs_equal(const arch_register_req_t *req1, @@ -376,13 +357,6 @@ struct arch_inverse_t { struct arch_irn_ops_t { - /** - * Classify the node. - * @param irn The node. - * @return A classification. - */ - arch_irn_class_t (*classify)(const ir_node *irn); - /** * Get the entity on the stack frame this node depends on. * @param irn The node in question. @@ -462,11 +436,20 @@ struct arch_irn_ops_t { */ 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 + * Initializes the isa interface. This is necessary before calling any + * other functions from this interface. + */ + void (*init)(void); + + /** + * Fress resources allocated by this isa interface. */ - arch_env_t *(*init)(const be_main_env_t *env); + void (*finish)(void); + + /** + * Returns the frontend settings needed for this backend. + */ + const backend_params *(*get_params)(void); /** * lowers current program for target. See the documentation for @@ -474,16 +457,35 @@ struct arch_isa_if_t { */ void (*lower_for_target)(void); + /** + * parse an assembler constraint part and set flags according to its nature + * advances the *c pointer to point to the last parsed character (so if you + * parse a single character don't advance c) + */ + asm_constraint_flags_t (*parse_asm_constraint)(const char **c); + + /** + * returns true if the string is a valid clobbered (register) in this + * backend + */ + int (*is_valid_clobber)(const char *clobber); + + /** + * Start codegeneration + * @return a new isa instance + */ + arch_env_t *(*begin_codegeneration)(const be_main_env_t *env); + /** * Free the isa instance. */ - void (*done)(void *self); + void (*end_codegeneration)(void *self); /** - * Called directly after initialization. Backend should handle all - * intrinsics here. + * Initialize the code generator for a graph + * @param irg A graph */ - void (*handle_intrinsics)(void); + void (*init_graph)(ir_graph *irg); /** * Get the ABI restrictions for procedure calls. @@ -493,40 +495,47 @@ struct arch_isa_if_t { void (*get_call_abi)(ir_type *call_type, be_abi_call_t *abi); /** - * A "static" function, returns the frontend settings - * needed for this backend. + * mark node as rematerialized */ - const backend_params *(*get_params)(void); + void (*mark_remat)(ir_node *node); /** - * mark node as rematerialized + * return node used as base in pic code addresses */ - void (*mark_remat)(ir_node *node); + ir_node* (*get_pic_base)(ir_graph *irg); /** - * parse an assembler constraint part and set flags according to its nature - * advances the *c pointer to point to the last parsed character (so if you - * parse a single character don't advance c) + * Create a spill instruction. We assume that spill instructions + * do not need any additional registers and do not affect cpu-flags in any + * way. + * Construct a sequence of instructions after @p after (the resulting nodes + * are already scheduled). + * Returns a mode_M value which is used as input for a reload instruction. */ - asm_constraint_flags_t (*parse_asm_constraint)(const char **c); + ir_node *(*new_spill)(ir_node *value, ir_node *after); /** - * returns true if the string is a valid clobbered (register) in this - * backend + * Create a reload instruction. We assume that reload instructions do not + * need any additional registers and do not affect cpu-flags in any way. + * Constructs a sequence of instruction before @p before (the resulting + * nodes are already scheduled). A rewiring of users is not performed in + * this function. + * Returns a value representing the restored value. */ - int (*is_valid_clobber)(const char *clobber); + ir_node *(*new_reload)(ir_node *value, ir_node *spilled_value, + ir_node *before); /** - * Initialize the code generator. - * @param irg A graph - * @return A newly created code generator. + * Checks if the given register is callee/caller saved. + * @deprecated, only necessary if backend still uses beabi functions */ - void (*init_graph)(ir_graph *irg); + int (*register_saved_by)(const arch_register_t *reg, int callee); /** - * return node used as base in pic code addresses + * Called directly after initialization. Backend should handle all + * intrinsics here. */ - ir_node* (*get_pic_base)(ir_graph *irg); + void (*handle_intrinsics)(void); /** * Called before abi introduce. @@ -547,44 +556,16 @@ struct arch_isa_if_t { * Called directly before done is called. This should be the last place * where the irg is modified. */ - void (*finish)(ir_graph *irg); + void (*finish_graph)(ir_graph *irg); /** * 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 (*emit)(ir_graph *irg); - - /** - * Checks if the given register is callee/caller saved. - * @deprecated, only necessary if backend still uses beabi functions - */ - int (*register_saved_by)(const arch_register_t *reg, int callee); - - /** - * Create a spill instruction. We assume that spill instructions - * do not need any additional registers and do not affect cpu-flags in any - * way. - * Construct a sequence of instructions after @p after (the resulting nodes - * are already scheduled). - * Returns a mode_M value which is used as input for a reload instruction. - */ - ir_node *(*new_spill)(ir_node *value, ir_node *after); - - /** - * Create a reload instruction. We assume that reload instructions do not - * need any additional registers and do not affect cpu-flags in any way. - * Constructs a sequence of instruction before @p before (the resulting - * nodes are already scheduled). A rewiring of users is not performed in - * this function. - * Returns a value representing the restored value. - */ - ir_node *(*new_reload)(ir_node *value, ir_node *spilled_value, - ir_node *before); }; -#define arch_env_done(env) ((env)->impl->done(env)) +#define arch_env_end_codegeneration(env) ((env)->impl->end_codegeneration(env)) #define arch_env_handle_intrinsics(env) \ do { if((env)->impl->handle_intrinsics != NULL) (env)->impl->handle_intrinsics(); } while(0) #define arch_env_get_call_abi(env,tp,abi) ((env)->impl->get_call_abi((tp), (abi))) @@ -640,29 +621,28 @@ static inline bool arch_irn_consider_in_reg_alloc( * are not marked as ignore. * Executes @p code for each definition. */ -#define be_foreach_definition_(node, cls, value, code) \ +#define be_foreach_definition_(node, ccls, value, code) \ do { \ if (get_irn_mode(node) == mode_T) { \ - const ir_edge_t *edge_; \ foreach_out_edge(node, edge_) { \ const arch_register_req_t *req_; \ value = get_edge_src_irn(edge_); \ req_ = arch_get_irn_register_req(value); \ - if (req_->cls != cls) \ + if (req_->cls != ccls) \ continue; \ code \ } \ } else { \ const arch_register_req_t *req_ = arch_get_irn_register_req(node); \ value = node; \ - if (req_->cls == cls) { \ + if (req_->cls == ccls) { \ code \ } \ } \ } while (0) -#define be_foreach_definition(node, cls, value, code) \ - be_foreach_definition_(node, cls, value, \ +#define be_foreach_definition(node, ccls, value, code) \ + be_foreach_definition_(node, ccls, value, \ if (req_->type & arch_register_req_type_ignore) \ continue; \ code \