X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firop_t.h;h=1ac54f360d1eb390f8e45147ec1a81e536d7a384;hb=f9d25133f86594ca2b1f33fb0b41a591ecc9b914;hp=5d1f23f5368ae7305895fe8028d0d62bf7ae9c32;hpb=ac478f0c38756f3df1abc00ffe63bd890c16c209;p=libfirm diff --git a/ir/ir/irop_t.h b/ir/ir/irop_t.h index 5d1f23f53..1ac54f360 100644 --- a/ir/ir/irop_t.h +++ b/ir/ir/irop_t.h @@ -1,25 +1,201 @@ +/* + * Project: libFIRM + * File name: ir/ir/irop_t.h + * Purpose: Representation of opcode of intermediate operation -- private header. + * Author: Christian Schaefer + * Modified by: Goetz Lindenmaier + * Created: + * CVS-ID: $Id$ + * Copyright: (c) 1998-2003 Universität Karlsruhe + * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE. + */ +#ifndef _IROP_T_H_ +#define _IROP_T_H_ -/* $Id$ */ +#include "firm_config.h" +#include "irop.h" +#include "tv.h" +#include "irnode.h" -# ifndef _IROP_T_H_ -# define _IROP_T_H_ -# include "irop.h" +/** + * 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 *self); -/** the type of an ir_op */ +/** + * 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 self + * if the node returned is not self. + * 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 *self); + +/** + * 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 *self); + +/** + * 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. + * The pointer n is set to the newly created node, if some reassociation + * was applied. + */ +typedef int (*reassociate_func)(ir_node **n); + +/** + * The copy attribute operation. + * Copy the node attributes from a 'old' node to a 'new' one. + */ +typedef void (*copy_attr_func)(const ir_node *old_node, ir_node *new_node); + +/** + * The get_type operation. + * Return the type of the node self. + */ +typedef type *(*get_type_func)(ir_node *self); + +/** + * The verify_node operation. + * Return non-zero if the node verification is ok, else 0. + * Depending on the node verification settings, may even assert. + * + * @see do_node_verification() + */ +typedef int (*verify_node_func)(ir_node *self, ir_graph *irg); + +/** + * The verify_node operation for Proj(X). + * Return non-zero if the node verification is ok, else 0. + * Depending on the node verification settings, may even assert. + * + * @see do_node_verification() + */ +typedef int (*verify_proj_node_func)(ir_node *self, ir_node *proj); + +/** The type of an ir_op. */ struct ir_op { - opcode code; - ident *name; - 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. */ + 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 */ + 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 */ + copy_attr_func copy_attr; /**< copy node attributes */ + get_type_func get_type; /**< return the type of a node */ + verify_node_func verify_node; /**< verify the node */ + verify_proj_node_func verify_proj_node; /**< verify the Proj node */ + op_func generic; /**< a generic function */ }; -/** create a new ir operation */ -ir_op * new_ir_op (opcode code, char *name, op_pinned p, - int labeled, 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); + +/** Free memory used by irop module. */ +void finish_op(void); + +/** + * Copies simply all attributes stored in the old node to the new node. + * Assumes both have the same opcode and sufficient size. + */ +void default_copy_attr(const ir_node *old_node, ir_node *new_node); + +/** 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; +} + +/* Returns non-zero if operation is a high-level op */ +static INLINE int is_op_highlevel(const ir_op *op) { + return op->flags & irop_flag_highlevel; +} + +/* Returns non-zero if operation is a const-like op */ +static INLINE int is_op_constlike(const ir_op *op) { + return op->flags & irop_flag_constlike; +} + +static INLINE opcode _get_op_code(const ir_op *op) { + return op->code; +} + +static INLINE ident *_get_op_ident(const ir_op *op){ + return op->name; +} + +static INLINE op_pin_state _get_op_pinned(const ir_op *op) { + return op->op_pin_state_pinned; +} + +static INLINE void _set_generic_function_ptr(ir_op *op, op_func func) { + op->generic = func; +} + +static INLINE op_func _get_generic_function_ptr(const ir_op *op) { + return op->generic; +} + +#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) -/** initialize the irop module */ -void init_op (void); -#endif +#endif /* _IROP_T_H_ */