+/*
+ * 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 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 */
};
-/* 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;
+}
+
+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;
+}
+
+
+#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_ */
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