/**
* Add a artificial dependency to the node.
* The dependency is only inserted if it is not there already.
+* This is only allowed in phase_backend!
+*
* @param node The node.
* @param dep The dependency target.
+*
* @return The index in the array (get_irn_dep() with that index returns @p dep).
*/
int add_irn_dep(ir_node *node, ir_node *dep);
/**
* Copy all dependencies from a node to another.
+ * This is only allowed in phase_backend!
+ *
* @param tgt The node which should be enriched.
* @param src The node whose dependencies shall be copied.
*/
void set_irn_mode(ir_node *node, ir_mode *mode);
/** Gets the mode struct of a node. */
ir_mode *get_irn_mode(const ir_node *node);
-/** Gets the mode-enum modecode. */
-modecode get_irn_modecode(const ir_node *node);
+/** Gets the mode-enum ir_modecode. */
+ir_modecode get_irn_modecode(const ir_node *node);
/** Gets the ident for a string representation of the mode .*/
ident *get_irn_modeident(const ir_node *node);
/** Gets the string representation of the mode .*/
void add_End_keepalive(ir_node *end, ir_node *ka);
/** Set the Keep alive node at position pos. */
void set_End_keepalive(ir_node *end, int pos, ir_node *ka);
-/** Set new keep-alives. */
+
+/**
+ * Set new keep-alives.
+ * Beware: This might be an expensive operation if dynamic edges are enabled,
+ * so avoid it in the backend.
+ */
void set_End_keepalives(ir_node *end, int n, ir_node *in[]);
-/** Set new keep-alives from old keep-alives, skipping irn. */
+
+/** Remove irn from the keep-alive set. */
void remove_End_keepalive(ir_node *end, ir_node *irn);
/** Some parts of the End node are allocated separately -- their memory
/** Gets the arity of a call. Identical to get_Call_n_params(). */
int get_Call_arity(const ir_node *node);
+/**
+ * Returns non-zero if a Call is surely a self-recursive Call.
+ * Beware: if this functions returns 0, the call might be self-recursive!
+ */
+int is_self_recursive_Call(const ir_node *call);
+
/** Set, get and remove the callee information for a Call node.
*
* The callee information lists all method entities that can be called
second arithmetic value as listed in tech report 1999-44.
unops are: Minus, Abs, Not, Conv, Cast
binops are: Add, Sub, Mul, Quot, DivMod, Div, Mod, And, Or, Eor, Shl,
- Shr, Shrs, Rot, Cmp */
+ Shr, Shrs, Rotl, Cmp */
int is_unop(const ir_node *node);
ir_node *get_unop_op(const ir_node *node);
void set_unop_op(ir_node *node, ir_node *op);
ir_node *get_Shrs_right(const ir_node *node);
void set_Shrs_right(ir_node *node, ir_node *right);
-ir_node *get_Rot_left(const ir_node *node);
-void set_Rot_left(ir_node *node, ir_node *left);
-ir_node *get_Rot_right(const ir_node *node);
-void set_Rot_right(ir_node *node, ir_node *right);
+ir_node *get_Rotl_left(const ir_node *node);
+void set_Rotl_left(ir_node *node, ir_node *left);
+ir_node *get_Rotl_right(const ir_node *node);
+void set_Rotl_right(ir_node *node, ir_node *right);
ir_node *get_Conv_op(const ir_node *node);
void set_Conv_op(ir_node *node, ir_node *op);
long get_Proj_proj(const ir_node *node);
void set_Proj_proj(ir_node *node, long proj);
+/**
+ * Returns non-zero if a node is a routine parameter.
+ *
+ * @param node the Proj node to test
+ */
+int is_arg_Proj(const ir_node *node);
+
ir_node **get_Tuple_preds_arr(ir_node *node);
int get_Tuple_n_preds(const ir_node *node);
ir_node *get_Tuple_pred(const ir_node *node, int pos);
int is_Shr(const ir_node *node);
/** Returns true if node is a Shrs node. */
int is_Shrs(const ir_node *node);
-/** Returns true if node is a Rot node. */
-int is_Rot(const ir_node *node);
+/** Returns true if node is a Rotl node. */
+int is_Rotl(const ir_node *node);
/** Returns true if node is a Psi node. */
int is_Psi(const ir_node *node);
/** Returns true if node is an Id node. */
*/
dbg_info *get_irn_dbg_info(const ir_node *n);
-/*-----------------------------------------------------------------*/
-/** Debug aides **/
-/*-----------------------------------------------------------------*/
-
-
-/** Debug print the node.
+/**
+ * Calculate a hash value of a node. Only inputs, mode and opcode are used.
*
- * Writes the node, all its attributes and the predecessors to stdout if DEBUG_libfirm
- * is set. Else does nothing. */
-void dump_irn(const ir_node *n);
+ * @param node the node to hash
+ */
+unsigned firm_default_hash(const ir_node *node);
/*@}*/ /* end of ir_node group definition */