X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbearch.h;h=d1f84e55215d276876b79cd8924ac02286b8e389;hb=39e27d1fe336c1238bfe4a7b614d103762e39ba2;hp=4ffe248b2b95aea3c85c1a5fdee5af0bae582206;hpb=165e48ff9dc8753e95565ddf6c58b3f128490406;p=libfirm diff --git a/ir/be/bearch.h b/ir/be/bearch.h index 4ffe248b2..d1f84e552 100644 --- a/ir/be/bearch.h +++ b/ir/be/bearch.h @@ -1,49 +1,51 @@ - #ifndef _FIRM_BEARCH_H #define _FIRM_BEARCH_H #include "firm_config.h" -#include "irop_t.h" -#include "irnode_t.h" -#include "irmode_t.h" +#ifdef WITH_LIBCORE +#include +#endif -#include "hashptr.h" -#include "fourcc.h" -#include "set.h" -#include "list.h" -#include "ident.h" +#include "firm_types.h" -#include "bearch.h" +#include "bitset.h" -struct _bitset_t; +#include "belistsched.h" +#include "beabi_t.h" +#include "bearch_t.h" +#include "be_t.h" -typedef struct _arch_register_class_t arch_register_class_t; -typedef struct _arch_register_t arch_register_t; -typedef struct _arch_enum_t arch_enum_t; -typedef struct _arch_enum_member_t arch_enum_member_t; -typedef struct _arch_isa_if_t arch_isa_if_t; -typedef struct _arch_env_t arch_env_t; +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_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_t; +/** + * Convenience macro to check for register type. + * @param req A pointer to register. + * @param kind The kind of type to check for (see 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) != 0) + /** * A register. */ struct _arch_register_t { 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. */ + 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. */ }; @@ -67,231 +69,326 @@ static INLINE int _arch_register_get_index(const arch_register_t *reg) * Like general purpose or floating point. */ struct _arch_register_class_t { - const char *name; /**< The name of the register. */ - int n_regs; /**< Number of registers in this class. */ - const arch_register_t *regs; /**< The array of registers. */ + 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. */ }; +/** return the number of registers in this register class */ #define arch_register_class_n_regs(cls) ((cls)->n_regs) +/** return the largest mode of this register class */ +#define arch_register_class_mode(cls) ((cls)->mode) + /** * Put all registers in a class into a bitset. * @param cls The class. * @param bs The bitset. May be NULL. * @return The number of registers in the class. */ -extern int arch_register_class_put(const arch_register_class_t *cls, - struct _bitset_t *bs); +extern int arch_register_class_put(const arch_register_class_t *cls, bitset_t *bs); static INLINE const arch_register_t * _arch_register_for_index(const arch_register_class_t *cls, int idx) { - assert(0 <= idx && idx < cls->n_regs); - return &cls->regs[idx]; + assert(0 <= idx && idx < cls->n_regs); + return &cls->regs[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) - -/** - * An immediate. - */ -struct _arch_immediate_t { - const char *name; /**< The name of the immediate. */ - ir_mode *mode; /**< The mode of the immediate. */ -}; - -/** - * The member of an enum. - */ -struct _arch_enum_member_t { - arch_enum_t *enm; /**< The enum, this member belongs to. */ -}; - -/** - * An enumeration operand type. - * - * Enumeration operand types can be used to describe the variants - * of an instruction, like giving the cases for a compare (gt, lt, - * eq, ...) some other special attributes of an instruction. - */ -struct _arch_enum_t { - int n_members; /**< The number of members in this enum. */ - arch_enum_member_t *members[1]; /**< The array of members. */ -}; - typedef enum _arch_operand_type_t { arch_operand_type_invalid, arch_operand_type_memory, arch_operand_type_register, arch_operand_type_immediate, arch_operand_type_symconst, - arch_operand_type_last + arch_operand_type_last } arch_operand_type_t; /** * Different types of register allocation requirements. */ typedef enum _arch_register_req_type_t { - arch_register_req_type_normal, /** All registers in the class - are allowed. */ + arch_register_req_type_none = 0, /**< No register requirement. */ + + arch_register_req_type_normal = 1, /**< All registers in the class + are allowed. */ - arch_register_req_type_limited, /** Only a real subset of - the class is allowed. */ + arch_register_req_type_limited = 2, /**< Only a real subset of + the class is allowed. */ - arch_register_req_type_equal, /** The register must equal - another one at the node. */ + arch_register_req_type_should_be_same = 4, /**< The register should be equal + another one at the node. */ - arch_register_req_type_unequal, /** The register must be unequal - to some other at the node. */ + arch_register_req_type_should_be_different = 8, /**< The register must be unequal + to some other at the node. */ - arch_register_req_type_pair /** The register is part of a - register pair. */ + arch_register_req_type_should_be_different_from_all = 16, /**< The register must be different from + all in's at the node */ } arch_register_req_type_t; +/** + * Convenience macro to check for set constraints. + * @param req A pointer to register requirements. + * @param kind The kind of constraint to check for (see arch_register_req_type_t). + * @return 1, If the kind of constraint is present, 0 if not. + */ +#define arch_register_req_is(req, kind) \ + (((req)->type & (arch_register_req_type_ ## kind)) != 0) + /** * Expresses requirements to register allocation for an operand. */ 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. */ - union { - int (*limited)(const ir_node *irn, int pos, struct _bitset_t *bs); - /** In case of the 'limited' + arch_register_req_type_t type; /**< The type of the constraint. */ + const arch_register_class_t *cls; /**< The register class this constraint belongs to. */ + + void (*limited)(void *limited_env, bitset_t *bs); + /**< In case of the 'limited' constraint, this function must put all allowable registers in the bitset and return the number of registers in the bitset. */ - int pos; /** In case of the equal constraint, - this gives the position of the - operand to which the register of - this should be equal to. Same for - unequal. */ - } data; + 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; /** - * Certain node classes which are relevent for the register allocator. + * 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. */ -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_t; +extern char *arch_register_req_format(char *buf, size_t len, const arch_register_req_t *req); -/* - * Some words about positions and indices: - * - * Firm has the policy "One node per value", that's why there are - * Proj nodes. This view has its advantages, but in a backend - * setting where we talk about instructions (which can also have - * multiple results and not a single Tuple value) this is sometimes - * hard. - * - * Each node representing an instruction must provide information - * about the kind of its operands (where operands mean both input - * and output operands). Such an operand is addressed with a position - * which is infact a tuple {in, out} x N. The fact that a position - * is an input/output operand is encoded in the sign, so input operands - * go from 0..n-1 and output operands from -1..-m if the - * instruction has n input and m output operands. - */ /** - * Make an in position from an index. - * @param index The index. - * @return The position representing the index as an in operand. + * Certain node classes which are relevant for the register allocator. */ -#define arch_pos_make_in(index) (index) +typedef enum _arch_irn_class_t { + 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; /** - * Make an out position from an index. - * @param index The index. - * @return The position representing the index as an out operand. + * An inverse operation returned by the backend */ -#define arch_pos_make_out(index) (-((index) + 1)) +typedef struct _arch_inverse_t { + int n; /**< count of nodes returned in nodes array */ + int costs; /**< costs of this remat */ -/** - * Check, if a position denotes an input operand. - * @param pos The position. - * @return 1, if the position denotes an input operand 0 if not. - */ -#define arch_pos_is_in(pos) ((pos) >= 0) + /**< nodes for this inverse operation. shall be in + * schedule order. last element is the target value + */ + ir_node **nodes; +} arch_inverse_t; /** - * Check, if a position denotes an output operand. - * @param pos The position. - * @return 1, if the position denotes an output operand 0 if not. + * Some flags describing a node in more detail. */ -#define arch_pos_is_out(pos) (!arch_pos_is_in(pos)) +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_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 +} arch_irn_flags_t; /** - * Get the index of a position. - * @param pos The position. - * @return The index of the position. + * 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. */ -#define arch_pos_get_index(pos) ((pos) < 0 ? -(pos) - 1 : (pos)) +extern const char *arch_irn_flag_str(arch_irn_flags_t flag); -typedef struct _arch_irn_ops_t { +struct _arch_irn_ops_if_t { /** * Get the register requirements for a given operand. + * @param self The self pointer. * @param irn The node. - * @param pos The operand's position. - * @return The register requirements for the selected operand, - * or NULL, if the operand is no register. - */ - const arch_register_req_t *(*get_irn_reg_req)(const ir_node *irn, int pos); - - /** - * Get the number of operands of a node. - * @param irn The node. - * @param in_out Denotes wither input (a number >= 0) or - * output (a number < 0). - * @return The number of operands for either in, or output. + * @param pos The operand's position + * (-1 for the result of the node, 0..n for the input + * operands). + * @return The register requirements for the selected operand. + * The pointer returned is never NULL. */ - int (*get_n_operands)(const ir_node *irn, int in_out); + const arch_register_req_t *(*get_irn_reg_req)(const void *self, + arch_register_req_t *req, const ir_node *irn, int pos); /** * Set the register for an output operand. * @param irn The node. - * @param pos The position of the output operand. * @param reg The register allocated to that operand. * @note If the operand is not a register operand, * the call is ignored. */ - void (*set_irn_reg)(ir_node *irn, int idx, 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. * @param irn The node. - * @param pos The index of the output operand. * @return The register allocated at that operand. NULL, if * the operand was no register operand or * @c arch_register_invalid, if no register has yet been * allocated for this node. */ - const arch_register_t *(*get_irn_reg)(const ir_node *irn, int idx); + 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 ir_node *irn); + arch_irn_class_t (*classify)(const void *self, const ir_node *irn); + + /** + * Get the flags of a node. + * @param self The irn ops themselves. + * @param irn The node. + * @return A set of flags. + */ + 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 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, entity *ent); + + /** + * 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); + + /** + * 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 + * @param obstack The obstack to use for allocation of the returned nodes array + * @return The inverse operation or NULL if operation invertible + */ + 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); +}; + +/** + * irn_ops base class. + */ +struct _arch_irn_ops_t { + 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 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 *spill, unsigned int i); -} arch_irn_ops_t; +/** + * Get the register requirements for a node. + * @param env The architecture environment. + * @param req A pointer to a requirements structure, where the data can + * be put into. + * @param irn The node. + * @param pos The position of the operand you're interested in. + * @return A pointer to the register requirements which may not + * neccessarily be equal to @p req. If NULL is returned, the + * operand was no register operand. + */ +extern const arch_register_req_t * +arch_get_register_req(const arch_env_t *env, arch_register_req_t *req, + const ir_node *irn, int pos); /** * Check if an operand is a register operand. @@ -310,15 +407,31 @@ 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, struct _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); + +/** + * 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. @@ -335,7 +448,7 @@ extern int arch_reg_is_allocatable(const arch_env_t *env, * Get the register class of an operand of a node. * @param env The architecture environment. * @param irn The node. - * @param idx The position of the operand. + * @param pos The position of the operand, -1 for the output. * @return The register class of the operand or NULL, if * operand is a non-register operand. */ @@ -344,13 +457,12 @@ arch_get_irn_reg_class(const arch_env_t *env, const ir_node *irn, int pos); /** * Get the register allocated at a certain output operand of a node. - * @param env The arch nvironment. + * @param env The arch environment. * @param irn The node. - * @param idx The index of the output operand. * @return The register allocated for this operand */ extern const arch_register_t * -arch_get_irn_register(const arch_env_t *env, const ir_node *irn, int idx); +arch_get_irn_register(const arch_env_t *env, const ir_node *irn); /** * Set the register for a certain output operand. @@ -359,25 +471,138 @@ arch_get_irn_register(const arch_env_t *env, const ir_node *irn, int idx); * @param idx The index of the output operand. * @param reg The register. */ -extern void arch_set_irn_register(const arch_env_t *env, - ir_node *irn, int idx, const arch_register_t *reg); +extern void arch_set_irn_register(const arch_env_t *env, ir_node *irn, + const arch_register_t *reg); + +/** + * Classify a node. + * @param env The architecture environment. + * @param irn The node. + * @return A classification of the 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 irn The node. + * @return The flags. + */ +extern arch_irn_flags_t arch_irn_get_flags(const arch_env_t *env, const ir_node *irn); + +#define arch_irn_is(env, irn, flag) ((arch_irn_get_flags(env, irn) & arch_irn_flags_ ## flag) != 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(env, irn, ignore)) + /** - * Somebody who can be asked about nodes. + * Somebody who can be asked about IR nodes. */ -typedef struct _arch_irn_handler_t { +struct _arch_irn_handler_t { /** * Get the operations of an irn. + * @param self The handler from which the method is invoked. * @param irn Some node. * @return Operations for that irn. */ - const arch_irn_ops_t *(*get_irn_ops)(const ir_node *irn); + const void *(*get_irn_ops)(const arch_irn_handler_t *handler, + const ir_node *irn); +}; + +/** + * The code generator interface. + */ +struct _arch_code_generator_if_t { + /** + * Initialize the code generator. + * @param birg A backend IRG session. + * @return A newly created code generator. + */ + void *(*init)(const be_irg_t *birg); + + /** + * Called before abi introduce. + */ + void (*before_abi)(void *self); + + /** + * Called, when the graph is being normalized. + */ + void (*prepare_graph)(void *self); + + /** + * Called before scheduling. + */ + void (*before_sched)(void *self); + + /** + * Called before register allocation. + */ + void (*before_ra)(void *self); + + /** + * Called after register allocation. + */ + void (*after_ra)(void *self); + + /** + * 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); +}; + +/** + * helper macro: call function func from the code generator + * if it's implemented. + */ +#define _arch_cg_call(cg, func) \ +do { \ + if((cg)->impl->func) \ + (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_finish(cg) _arch_cg_call(cg, finish) +#define arch_code_generator_done(cg) _arch_cg_call(cg, done) + +/** + * Code generator base class. + */ +struct _arch_code_generator_t { + const arch_code_generator_if_t *impl; +}; + +/** + * 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. */ +}; -} arch_irn_handler_t; +#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. @@ -386,24 +611,98 @@ 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 */ - void (*init)(void); + void *(*init)(FILE *file_handle); + + /** + * 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)(void); + 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)(int i); + 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 + * 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 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 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); + + /** + * A "static" function, returns the frontend settings + * needed for this backend. + */ + const backend_params *(*get_params)(void); + +#ifdef WITH_LIBCORE + /** + * Register command line options for this backend. + * @param grp The root group. + */ + void (*register_options)(lc_opt_entry_t *grp); +#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_MAX_HANDLERS 8 /** @@ -411,12 +710,13 @@ struct _arch_isa_if_t { * Keep this everywhere you're going. */ struct _arch_env_t { - const arch_isa_if_t *isa; /** The isa about which everything is. */ + const struct _be_node_factory_t *node_factory; /**< The node factory for be nodes. */ + arch_isa_t *isa; /**< The isa about which everything is. */ - arch_irn_handler_t const *handlers[ARCH_MAX_HANDLERS]; /** The handlers are organized as - a stack. */ + arch_irn_handler_t const *handlers[ARCH_MAX_HANDLERS]; /**< The handlers are organized as + a stack. */ - int handlers_tos; /** The stack pointer of the handler + int handlers_tos; /**< The stack pointer of the handler stack. */ }; @@ -429,10 +729,11 @@ struct _arch_env_t { /** * Initialize the architecture environment struct. - * @param isa The isa which shall be put into the environment. + * @param isa The isa which shall be put into the environment. + * @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); +extern arch_env_t *arch_env_init(arch_env_t *env, const arch_isa_if_t *isa, FILE *file_handle); /** * Add a node handler to the environment. @@ -440,7 +741,14 @@ 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 */