X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firop_t.h;h=92f0402278e906e8402e703726c160439f0c4f6a;hb=346dfddce9be4420855b06ea40d2bf21dad9bc88;hp=ce8bffe4d3835d320ca01721bc25947568e31fda;hpb=4e3fd9fecccfd54df03b342bd20e1ecd2d5c940f;p=libfirm diff --git a/ir/ir/irop_t.h b/ir/ir/irop_t.h index ce8bffe4d..92f040227 100644 --- a/ir/ir/irop_t.h +++ b/ir/ir/irop_t.h @@ -15,7 +15,9 @@ # define _IROP_T_H_ # include "irop.h" +# include "tv.h" +/** The allowed parities */ typedef enum { oparity_invalid = 0, oparity_unary, /**< an unary operator -- considering 'numeric' arguments. */ @@ -31,33 +33,153 @@ typedef enum { } op_arity; -/** the type of an ir_op */ +/** The irop flags */ +typedef enum { + irop_flag_labeled = 0x00000001, /**< if set, Output edge labels on in-edges in vcg graph */ + irop_flag_commutative = 0x00000002, /**< operation is commutative */ + irop_flag_cfopcode = 0x00000004, /**< is a control flow operation */ + irop_flag_ip_cfopcode = 0x00000008, /**< operation manipulates interprocedural control flow */ + irop_flag_fragile = 0x00000010, /**< set if the operation can change the control flow because + of an exception */ + irop_flag_forking = 0x00000020, /**< the operation is a forking control flow */ +} irop_flags; + + +/** + * The compute value operation. + * This operation evaluates an IR node into a tarval if possible, + * returning tarval_bad otherwise. + */ +typedef tarval *(*computed_value_func)(ir_node *n); + +/** + * The equivalent node operation. + * This operation returns an equivalent node for the input node. + * It does not create new nodes. It is therefore safe to free n + * if the node returned is not n. + * If a node returns a Tuple we can not just skip it. If the size of the + * in array fits, we transform n into a tuple (e.g., possible for Div). + */ +typedef ir_node *(*equivalent_node_func)(ir_node *n); + +/** + * The transform node operation. + * This operation tries several [inplace] [optimizing] transformations + * and returns an equivalent node. + * The difference to equivalent_node() is that these + * transformations _do_ generate new nodes, and thus the old node must + * not be freed even if the equivalent node isn't the old one. + */ +typedef ir_node *(*transform_node_func)(ir_node *n); + +/** + * The node attribute compare operation. + * Compares the nodes attributes of two nodes of identical opcode + * and returns 0 if the attributes are identical, 1 if they differ. + */ +typedef int (*node_cmp_attr_func)(ir_node *a, ir_node *b); + +/** + * The reassociation operation. + * Called from a walker. Returns non-zero if + * a reassociation rule was applied. + */ +typedef int (*reassociate_func)(ir_node *n); + +/** The type of an ir_op. */ struct ir_op { - opcode code; - ident *name; + opcode code; /**< the unique opcode of the op */ + ident *name; /**< the name of the op */ size_t attr_size; /**< Space needed in memory for private attributes */ - int labeled; /**< Output edge labels on in-edges in vcg graph */ - int pinned; /**< How to deal with the node in cse, pre. */ + op_pin_state op_pin_state_pinned; /**< How to deal with the node in cse, pre. */ op_arity opar; /**< arity of operator. */ + int op_index; /**< the index of the first data operand, 0 for most cases, 1 for Div etc. */ + unsigned flags; /**< flags describing the behavior of the ir_op, a bitmaks of irop_flags */ + + /* CallBacks */ + computed_value_func computed_value; /**< evaluates a node into a tarval if possible. */ + equivalent_node_func equivalent_node; /**< optimizes the node by returning an equivalent one. */ + transform_node_func transform_node; /**< optimizes the node by transforming it. */ + node_cmp_attr_func node_cmp_attr; /**< compares two node attributes. */ + reassociate_func reassociate; /**< reassociate a tree */ }; /** - * Create a new ir operation. + * Creates a new ir operation. * - * @param code the opcode, one of type \c opcode - * @param name the printable name of this opcode - * @param p wheater operations of this opcode are pinned or floating - * @param labeled if set, output edge labels on in-edges in vcg graph wil be generated + * @param code the opcode, one of type \c opcode + * @param name the printable name of this opcode + * @param p wheater operations of this opcode are op_pin_state_pinned or floating + * @param flags a bitmask of irop_flags describing the behavior of the ir operation + * @param opar the parity of this ir operation + * @param op_index if the parity is oparity_unary, oparity_binary or oparity_trinary the index + * of the left operand + * @param attr_size attribute size for this ir operation * * @return The genenerated ir operation. */ -ir_op * new_ir_op (opcode code, const char *name, op_pinned p, - int labeled, op_arity opar, size_t attr_size); +ir_op * new_ir_op(opcode code, const char *name, op_pin_state p, + unsigned flags, op_arity opar, int op_index, size_t attr_size); + +/** + * Frees a newly created ir operation. + */ +void free_ir_op(ir_op *code); -/** initialize the irop module */ -void init_op (void); +/** Initialize the irop module. */ +void init_op(void); -/* free memory used by irop module. */ +/** Free memory used by irop module. */ void finish_op(void); +/** Returns the attribute size of nodes of this opcode. + @note Use not encouraged, internal feature. */ +static INLINE int get_op_attr_size (const ir_op *op) { + return op->attr_size; +} + +/** Returns non-zero if op is one of Start, End, Jmp, Cond, Return, Raise or Bad. */ +static INLINE int is_cfopcode(const ir_op *op) { + return op->flags & irop_flag_cfopcode; +} + +/** Returns true if the operation manipulates interprocedural control flow: + CallBegin, EndReg, EndExcept */ +static INLINE int is_ip_cfopcode(const ir_op *op) { + return op->flags & irop_flag_ip_cfopcode; +} + +/* Returns non-zero if operation is commutative */ +static INLINE int is_op_commutative(const ir_op *op) { + return op->flags & irop_flag_commutative; +} + +/* Returns non-zero if operation is fragile */ +static INLINE int is_op_fragile(const ir_op *op) { + return op->flags & irop_flag_fragile; +} + +/* Returns non-zero if operation is forking control flow */ +static INLINE int is_op_forking(const ir_op *op) { + return op->flags & irop_flag_forking; +} + +static INLINE opcode __get_op_code(const ir_op *op) { + return op->code; +} + +static INLINE ident *__get_op_ident(ir_op *op){ + return op->name; +} + +static INLINE op_pin_state __get_op_pinned(const ir_op *op) { + return op->op_pin_state_pinned; +} + + +#define get_op_code(op) __get_op_code(op) +#define get_op_ident(op) __get_op_ident(op) +#define get_op_pinned(op) __get_op_pinned(op) + + #endif /* _IROP_T_H_ */