irnode.h 36.2 KB
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/*
 * Project:     libFIRM
 * File name:   ir/ir/irnode.h
 * Purpose:     Representation of an intermediate operation.
 * Author:      Martin Trapp, 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.
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 */

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# ifndef _IRNODE_H_
# define _IRNODE_H_

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/**
 * Projection numbers of compare: use for Proj nodes!
 * @remark there are numbers with normalized names below!
 */
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typedef enum {
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  False = 0,        /**< false */
  Eq,           /**< equal */
  Lt,           /**< less */
  Le,           /**< less or equal */
  Gt,           /**< greater */
  Ge,           /**< greater or equal */
  Lg,           /**< less or greater */
  Leg = 7,      /**< less, equal or greater = ordered */
  Uo,           /**< unordered */
  Ue,           /**< unordered or equal */
  Ul,           /**< unordered or less */
  Ule,          /**< unordered, less or equal */
  Ug,           /**< unordered or greater */
  Uge,          /**< unordered, greater or equal */
  Ne,           /**< unordered, less or greater = not equal */
  True = 15         /**< true */
  /* not_mask = Leg*/   /* bits to flip to negate comparison * @@ hack for jni interface */
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} pnc_number;   /* pnc: Projection Number Cmp */
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#define not_mask Leg

# include "tv.h"
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# include "irgraph.h"
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# include "entity.h"
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# include "firm_common.h"
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# include "irop.h"
# include "irmode.h"
# include "type.h"
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# include "dbginfo.h"
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/* # include "exc.h" */
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/**
 * @file irnode.h
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 *
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 * @author Martin Trapp, Christian Schaefer
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 *
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 * Declarations of an ir node.
 */

/**
 * @defgroup ir_node Declarations of an ir node.
 *
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 * The type definition of ir_node is also in irgraph.h to resolve
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 *  recursion between irnode.h and irgraph.h
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 *
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 * ir_node - a datatype representing a Firm node
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 *
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 *  The common fields are:
 *
 *  - firm_kind - A firm_kind tag containing k_type.  This is useful
 *                for dynamically checking whether a node is a ir_node.
 *  - arity     - The number of predecessors in the Firm graph.
 *  - in        - A list with the predecessors in the Firm graph.  There are
 *                routines to access individual elements and to obtain the
 *                array.  The method returning the array should not be used.
 *  - mode      - The mode of the node.  There are routines to get the mode
 *                but also to access the mode's fields directly.
 *  - opcode    - The opcode of the node. There are routines to get the opcode
 *                but also to access the opcode's fields directly.
 *  - node_nr   - A unique number for the node.  Available only if debugging
 *                is turned on.
 * @{
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 */
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#ifndef _IR_NODE_TYPEDEF_
#define _IR_NODE_TYPEDEF_
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typedef struct ir_node ir_node;
#endif

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/**
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 *   you can work on the graph without considering the different types
 *   of nodes, it's just a big graph.
 */
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/**
 *   Checks whether a pointer points to a ir node.
 *
 *   @param thing     an arbitrary pointer
 *
 *   @return
 *       true if the thing is a ir mode, else false
 */
int
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is_ir_node (const void *thing);
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/** returns the number of predecessors without the block predecessor: */
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int                  get_irn_arity         (const ir_node *node);
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int           get_irn_intra_arity   (const ir_node *node);
int           get_irn_inter_arity   (const ir_node *node);
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/** Replaces the old in array by a new one that will contain the ins given in
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   the parameters.  Conserves the block predecessor.  It copies the array passed.
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   This function is necessary to adjust in arrays of blocks, calls and phis.
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   Assumes that current_ir_graph is set to the graph containing "node".
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   "in" must contain all predecessors except the block that are required for
   the nodes opcode. */
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void          set_irn_in            (ir_node *node, int arity,
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                        ir_node *in[]);
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/* to iterate through the predecessors without touching the array. No
   order of predecessors guaranteed.
   To iterate over the operands iterate from 0 to i < get_irn_arity(),
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   to iterate including the Block predecessor iterate from i = -1 to
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   i < get_irn_arity. */
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/* Access predecessor n */
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/* get_irn_n removes Id predecessors. */
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ir_node      *get_irn_n             (ir_node *node, int n);
ir_node      *get_irn_intra_n       (ir_node *node, int n);
ir_node      *get_irn_inter_n       (ir_node *node, int n);
void          set_irn_n             (ir_node *node, int n, ir_node *in);
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/** Sets the mode struct of node */
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void          set_irn_mode (ir_node *node, ir_mode *mode);
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/** Gets the mode struct. */
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ir_mode      *get_irn_mode          (const ir_node *node);
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/** Gets the mode-enum modecode. */
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modecode      get_irn_modecode      (const ir_node *node);
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/** Gets the ident for a string representation of the mode .*/
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ident        *get_irn_modeident     (const ir_node *node);
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/** Gets the string representation of the mode .*/
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const char   *get_irn_modename      (const ir_node *node);
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/** Gets the opcode struct of the node */
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ir_op        *get_irn_op            (const ir_node *node);
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/** Sets the opcode struct of the node. */
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void          set_irn_op            (ir_node *node, ir_op *op);
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/** Gets the opcode-enum of the node. */
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opcode        get_irn_opcode        (const ir_node *node);
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/** Get the string representation of the opcode. */
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const char   *get_irn_opname        (const ir_node *node);
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/** Get the ident for a string representation of the opcode. */
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ident        *get_irn_opident       (const ir_node *node);
unsigned long get_irn_visited (const ir_node *node);
void          set_irn_visited (ir_node *node, unsigned long visited);
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/** Sets visited to get_irg_visited(current_ir_graph). */
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void          mark_irn_visited (ir_node *node);
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/** Returns 1 if visited < get_irg_visited(current_ir_graph).  */
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int           irn_not_visited  (const ir_node *node);
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/** Returns 1 if visited >= get_irg_visited(current_ir_graph).  */
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int           irn_visited      (const ir_node *node);
void          set_irn_link     (ir_node *node, void *link);
void         *get_irn_link     (const ir_node *node);
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/** Returns the ir_graph this node belongs to. Only valid if irg
 *  is in state pinned (irg is only stored in the block. */
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ir_graph     *get_irn_irg      (ir_node *node);
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/** Outputs a unique number for this node if libFIRM is compiled for
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   debugging, (configure with --enable-debug) else returns address
   of node cast to long. */
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long          get_irn_node_nr  (const ir_node *node);
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/**
 * irnode constructor.
 * Create a new irnode in irg, with an op, mode, arity and
 * some incoming irnodes.
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 * This constructor is used in every specified irnode constructor.
 *
 * @param db    Debug info.
 * @param irg   IR-graph on with this new node should be constructed.
 * @param op    The opcode of the new node.
 * @param mode  The mode of the new node.
 * @param arity The arity of the new node, may be <0 if yet.
 * @param in    An array of arity predecessor nodes.
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 */
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ir_node *
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new_ir_node (dbg_info *db,
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         ir_graph *irg,
         ir_node *block,
         ir_op *op,
         ir_mode *mode,
         int arity,
         ir_node *in[]);
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/*
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 *
 * NAME access functions for node fields.
 *
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 *  Not properly documented ;-)
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 *
 */
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/* This works for all except Block.  To express the difference to
 * access routines that work for all nodes we use infix "nodes". */
#define get_nodes_block get_nodes_Block
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ir_node  *get_nodes_Block (ir_node *node);
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#define set_nodes_block set_nodes_Block
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void      set_nodes_Block (ir_node *node, ir_node *block);
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/**
 * Projection numbers for result of Start node: use for Proj nodes!
 */
typedef enum {
  pn_Start_X_initial_exec,  /**< Projection on the initial control flow. */
  pn_Start_M,               /**< Projection on the initial memory. */
  pn_Start_P_frame_base,    /**< Projection on the frame base pointer. */
  pn_Start_P_globals,       /**< Projection on the pointer to the data segment
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                   containing _all_ global entities. */
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  pn_Start_T_args,          /**< Projection on all arguments. */
  pn_Start_P_value_arg_base /**< Pointer to region of compound value arguments as defined by
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                   type of this method. */
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} pn_Start; /* Projection numbers for Start. */

/**
 * Projection numbers for result of Start node: use for Proj nodes!
 * @remark This is the old name convention, don't use anymore.
 */
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typedef enum {
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  pns_initial_exec,     /**< Projection on an executable, the initial control
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               flow. */
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  pns_global_store,     /**< Projection on the global store */
  pns_frame_base,       /**< Projection on the frame base */
  pns_globals,          /**< Projection on the pointer to the data segment
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                 containing _all_ global entities. */
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  pns_args,             /**< Projection on all arguments */
  pns_value_arg_base    /**< Pointer to region of compound value arguments as defined by
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                 type of this method. */
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} pns_number; /* pns: Projection Number Start */
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/** Test whether arbitrary node is frame pointer.
 *
 * Test whether arbitrary node is frame pointer, i.e. Proj(pn_Start_P_frame_base)
 * from Start.  If so returns frame type, else Null. */
type *is_frame_pointer(ir_node *n);

/** Test whether arbitrary node is globals pointer.
 *
 * Test whether arbitrary node is globals pointer, i.e. Proj(pn_Start_P_globals)
 * from Start.  If so returns global type, else Null. */
type *is_globals_pointer(ir_node *n);

/** Test whether arbitrary node is value arg base.
 *
 * Test whether arbitrary node is value arg base, i.e. Proj(pn_Start_P_value_arg_base)
 * from Start.   If so returns 1, else 0. */
int   is_value_arg_pointer(ir_node *n);

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/* @@@ no more supported  */
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ir_node **get_Block_cfgpred_arr (ir_node *node);
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int              get_Block_n_cfgpreds (ir_node *node);
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ir_node  *get_Block_cfgpred (ir_node *node, int pos);
void      set_Block_cfgpred (ir_node *node, int pos, ir_node *pred);
bool      get_Block_matured (ir_node *node);
void      set_Block_matured (ir_node *node, bool matured);
unsigned long get_Block_block_visited (ir_node *node);
void      set_Block_block_visited (ir_node *node, unsigned long visit);
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/* For this current_ir_graph must be set. */
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void      mark_Block_block_visited(ir_node *node);
int       Block_not_block_visited(ir_node *node);
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/* Set and remove interprocedural predecessors. If the interprocedural
 * predecessors are removed, the node has the same predecessors in
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 * both views.
 * @@@ Maybe better:  arity is zero if no cg preds. */
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void      set_Block_cg_cfgpred_arr(ir_node * node, int arity, ir_node ** in);
void      set_Block_cg_cfgpred(ir_node * node, int pos, ir_node * pred);
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/* @@@ not supported */
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ir_node **get_Block_cg_cfgpred_arr(ir_node * node);
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/* Returns the number of interprocedural predecessors.  0 if none. */
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int       get_Block_cg_n_cfgpreds(ir_node * node);
ir_node  *get_Block_cg_cfgpred(ir_node * node, int pos);
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/* frees the memory. */
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void      remove_Block_cg_cfgpred_arr(ir_node * node);

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/* Start references the irg it is in.
 @@@ old -- use get_irn_irg instead! */
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ir_graph *get_Start_irg(ir_node *node);
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int  get_End_n_keepalives(ir_node *end);
ir_node *get_End_keepalive(ir_node *end, int pos);
void add_End_keepalive (ir_node *end, ir_node *ka);
void set_End_keepalive(ir_node *end, int pos, ir_node *ka);
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/* Some parts of the End node are allocated separately -- their memory
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   is not recovered by dead_node_elimination if a End node is dead.
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   free_End frees these data structures. */
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void free_End (ir_node *end);
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/* @@@ old -- use get_irn_irg instead!  */
ir_graph *get_EndReg_irg (ir_node *end);
ir_graph *get_EndExcept_irg (ir_node *end);
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/* We distinguish three kinds of Cond nodes.  These can be distinguished
   by the mode of the selector operand and an internal flag of type cond_kind.
   First we distinguish binary Conds and switch Conds.
   A binary Cond has as selector a boolean value.  Proj(0) projects the control
   flow for case "False", Proj(1) the control flow for "True".  A binary Cond
   is recognized by the boolean selector.
   The switch Cond has as selector an unsigned integer.  It produces as result
   an n+1 Tuple (cf0, ... , cfn) of control flows.
   We differ two flavours of this Cond.  The first, the dense Cond, passes
   control along output i if the selector value is i, 0 <= i <= n.  If the
   selector value is >n it passes control along output n.
   The second Cond flavor differes in the treatment of cases not specified in
   the source program.  It magically knows about the existence of Proj nodes.
   It only passes control along output i, 0 <= i <= n, if a node Proj(Cond, i)
   exists.  Else it passes control along output n (even if this Proj does not
   exist.)  This Cond we call "fragmentary".  There is a special constructor
   new_defaultProj that automatically sets the flavor.
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   The two switch flavors are distinguished by a flag of type cond_kind.
   Default flavor is "dense"
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*/
typedef enum {
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  dense,        /**< Default. Missing Proj nodes are dead control flow. */
  fragmentary   /**< Special. No control flow optimizations allowed.  Missing
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           Proj nodes mean default control flow, i.e., Proj(n). */
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} cond_kind;

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ir_node  *get_Cond_selector (ir_node *node);
void      set_Cond_selector (ir_node *node, ir_node *selector);
cond_kind get_Cond_kind (ir_node *node);
void      set_Cond_kind (ir_node *node, cond_kind kind);
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/**
 * Projection numbers for conditions.
 */
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typedef enum {
  pn_Cond_false,    /**< Control flow if operand is "false". */
  pn_Cond_true      /**< Control flow if operand is "true".  */
} pn_Cond;  /* Projection numbers for Cond. */

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ir_node  *get_Return_mem (ir_node *node);
void      set_Return_mem (ir_node *node, ir_node *mem);
ir_node **get_Return_res_arr (ir_node *node);
int       get_Return_n_ress (ir_node *node);
ir_node  *get_Return_res (ir_node *node, int pos);
void      set_Return_res (ir_node *node, int pos, ir_node *res);
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ir_node *get_Raise_mem (ir_node *node);
void     set_Raise_mem (ir_node *node, ir_node *mem);
ir_node *get_Raise_exo_ptr (ir_node *node);  /* PoinTeR to EXception Object */
void     set_Raise_exo_ptr (ir_node *node, ir_node *exoptr);
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/**
 * Projection numbers for Raise.
 */
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typedef enum {
  pn_Raise_X,    /**< Execution result. */
  pn_Raise_M     /**< Memory result.    */
} pn_Raise;  /* Projection numbers for Raise. */

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tarval  *get_Const_tarval (ir_node *node);
void     set_Const_tarval (ir_node *node, tarval *con);
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/* The source language type.  Must be an atomic type.  Mode of type must
   be mode of node. For tarvals from entities type must be pointer to
   entity type. */
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type    *get_Const_type   (ir_node *node);
void     set_Const_type   (ir_node *node, type *tp);
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/**  This enum names the three different kinds of symbolic Constants
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     represented by SymConst.  The content of the attribute type_or_id
     depends on this tag.  Use the proper access routine after testing
     this flag. */
typedef enum {
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  type_tag,          /**< The SymConst is a type tag for the given type.
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            Type_or_id_p is type *. */
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  size,              /**< The SymConst is the size of the given type.
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            Type_or_id_p is type *. */
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  linkage_ptr_info   /**< The SymConst is a symbolic pointer to be filled in
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            by the linker. Type_or_id_p is ident *. */
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} symconst_kind;
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typedef union type_or_id * type_or_id_p;
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symconst_kind get_SymConst_kind (const ir_node *node);
void          set_SymConst_kind (ir_node *node, symconst_kind num);
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/* Only to access SymConst of kind type_tag or size.  Else assertion: */
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type    *get_SymConst_type (ir_node *node);
void     set_SymConst_type (ir_node *node, type *tp);
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/* Only to access SymConst of kind linkage_ptr_info.  Else assertion: */
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ident   *get_SymConst_ptrinfo (ir_node *node);
void     set_SymConst_ptrinfo (ir_node *node, ident *ptrinfo);
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/* Sets both: type and ptrinfo.  Needed to treat the node independent of
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   its semantics.  Does a memcpy for the memory tori points to. */
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type_or_id_p get_SymConst_type_or_id (ir_node *node);
void set_SymConst_type_or_id (ir_node *node, type_or_id_p tori);

ir_node *get_Sel_mem (ir_node *node);
void     set_Sel_mem (ir_node *node, ir_node *mem);
ir_node *get_Sel_ptr (ir_node *node);  /* ptr to the object to select from */
void     set_Sel_ptr (ir_node *node, ir_node *ptr);
ir_node **get_Sel_index_arr (ir_node *node);
int      get_Sel_n_indexs (ir_node *node);
ir_node *get_Sel_index (ir_node *node, int pos);
void     set_Sel_index (ir_node *node, int pos, ir_node *index);
entity  *get_Sel_entity (ir_node *node); /* entity to select */
void     set_Sel_entity (ir_node *node, entity *ent);
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/**
 * Projection numbers for result of Call node: use for Proj nodes!
 *
 * @remark old name convention!
 */
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typedef enum {
  pncl_memory = 0,        /**< The memory result. */
  pncl_exc_target = 1,    /**< The control flow result branching to the exception handler */
  pncl_result_tuple = 2,  /**< The tuple containing all (0, 1, 2, ...) results */
  pncl_exc_memory = 3,    /**< The memory result in case the called method terminated with
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                  an exception */
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  pncl_value_res_base = 4 /**< A pointer to the memory region containing copied results
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                  passed by value (for compound result types). */
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} pncl_number;   /* pncl: Projection Number CaLl */

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/**
 * Projection numbers for result of Call node: use for Proj nodes!
 */
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typedef enum {
  pn_Call_M_regular = 0,  /**< The memory result. */
  pn_Call_T_result  = 2,  /**< The tuple containing all (0, 1, 2, ...) results */
  pn_Call_P_value_res_base = 4,/**< A pointer to the memory region containing copied results
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                 passed by value (for compound result types). */
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  pn_Call_X_except  = 1,  /**< The control flow result branching to the exception handler */
  pn_Call_M_except  = 3   /**< The memory result in case the called method terminated with
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                 an exception */
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} pn_Call;   /* Projection numbers for Call. */

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ir_node *get_Call_mem (ir_node *node);
void     set_Call_mem (ir_node *node, ir_node *mem);
ir_node *get_Call_ptr (ir_node *node);
void     set_Call_ptr (ir_node *node, ir_node *ptr);
ir_node **get_Call_param_arr (ir_node *node);
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/** Gets the number of parameters of a call. */
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int      get_Call_n_params (ir_node *node);
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/** Gets the call parameter at position pos. */
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ir_node *get_Call_param (ir_node *node, int pos);
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/** Sets the call parameter at position pos. */
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void     set_Call_param (ir_node *node, int pos, ir_node *param);
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/** Gets the type of a call. */
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type    *get_Call_type (ir_node *node);
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/** Sets the type of a call. */
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void     set_Call_type (ir_node *node, type *tp);
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/** Gets the arity of a call. Identical to get_Call_n_params(). */
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int      get_Call_arity (ir_node *node);
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/* Set, get and remove the callee-analysis.
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   The array is only accessible if information is valid.
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   It contains NULL for called methods that are not within
   the compilation unit. */
int     Call_has_callees      (ir_node *node);
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int     get_Call_n_callees    (ir_node * node);
entity *get_Call_callee       (ir_node * node, int pos);
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/* assumes current_ir_graph set properly! */
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void    set_Call_callee_arr   (ir_node * node, int n, entity ** arr);
void    remove_Call_callee_arr(ir_node * node);
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ir_node  *get_CallBegin_ptr  (ir_node *node);
void      set_CallBegin_ptr  (ir_node *node, ir_node *ptr);
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/* @@@ old -- use get_irn_irg instead!  */
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ir_graph *get_CallBegin_irg  (ir_node *node);
ir_node  *get_CallBegin_call (ir_node *node);
void      set_CallBegin_call (ir_node *node, ir_node *call);
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ir_node *get_FuncCall_ptr (ir_node *node);
void     set_FuncCall_ptr (ir_node *node, ir_node *ptr);
ir_node **get_FuncCall_param_arr (ir_node *node);
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/** Gets the number of parameters of a func call. */
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int      get_FuncCall_n_params (ir_node *node);
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/** Gets the func call parameter at position pos. */
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ir_node *get_FuncCall_param (ir_node *node, int pos);
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/** Sets the func call parameter at position pos. */
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void     set_FuncCall_param (ir_node *node, int pos, ir_node *param);
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/** Gets the type of a func call. */
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type    *get_FuncCall_type (ir_node *node);
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/** Sets the type of a func call. */
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void     set_FuncCall_type (ir_node *node, type *tp);
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/** Gets the arity of a func call. Identical to get_FuncCall_n_params(). */
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int      get_FuncCall_arity (ir_node *node);
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/* Set, get and remove the callee-analysis.
   The array is only accessible if information is valid.
   It contains NULL for called methods that are not within
   the compilation unit. */
int     FuncCall_has_callees      (ir_node *node);
int     get_FuncCall_n_callees    (ir_node * node);
entity *get_FuncCall_callee       (ir_node * node, int pos);
/* assumes current_ir_graph set properly! */
void    set_FuncCall_callee_arr   (ir_node * node, int n, entity ** arr);
void    remove_FuncCall_callee_arr(ir_node * node);

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/* For unary and binary arithmetic operations the access to the
   operands can be factored out.  Left is the first, right the
   second arithmetic value  as listed in tech report 1999-44.
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   unops are: Minus, Abs, Not, Conv, Cast
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   binops are: Add, Sub, Mul, Quot, DivMod, Div, Mod, And, Or, Eor, Shl,
   Shr, Shrs, Rot, Cmp */
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int      is_unop (ir_node *node);
ir_node *get_unop_op (ir_node *node);
void     set_unop_op (ir_node *node, ir_node *op);
int      is_binop (ir_node *node);
ir_node *get_binop_left (ir_node *node);
void     set_binop_left (ir_node *node, ir_node *left);
ir_node *get_binop_right (ir_node *node);
void     set_binop_right (ir_node *node, ir_node *right);

ir_node *get_Add_left (ir_node *node);
void     set_Add_left (ir_node *node, ir_node *left);
ir_node *get_Add_right (ir_node *node);
void     set_Add_right (ir_node *node, ir_node *right);

ir_node *get_Sub_left (ir_node *node);
void     set_Sub_left (ir_node *node, ir_node *left);
ir_node *get_Sub_right (ir_node *node);
void     set_Sub_right (ir_node *node, ir_node *right);

ir_node *get_Minus_op (ir_node *node);
void     set_Minus_op (ir_node *node, ir_node *op);

ir_node *get_Mul_left (ir_node *node);
void     set_Mul_left (ir_node *node, ir_node *left);
ir_node *get_Mul_right (ir_node *node);
void     set_Mul_right (ir_node *node, ir_node *right);

ir_node *get_Quot_left (ir_node *node);
void     set_Quot_left (ir_node *node, ir_node *left);
ir_node *get_Quot_right (ir_node *node);
void     set_Quot_right (ir_node *node, ir_node *right);
ir_node *get_Quot_mem (ir_node *node);
void     set_Quot_mem (ir_node *node, ir_node *mem);
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/**
 * Projection numbers for Quot: use for Proj nodes!
 */
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typedef enum {
  pn_Quot_M,           /**< Memory result.    */
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  pn_Quot_X_except,    /**< Execution result if exception occured. */
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  pn_Quot_res          /**< Result of computation. */
} pn_Quot;  /* Projection numbers for Quot. */

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ir_node *get_DivMod_left (ir_node *node);
void     set_DivMod_left (ir_node *node, ir_node *left);
ir_node *get_DivMod_right (ir_node *node);
void     set_DivMod_right (ir_node *node, ir_node *right);
ir_node *get_DivMod_mem (ir_node *node);
void     set_DivMod_mem (ir_node *node, ir_node *mem);
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/**
 * Projection numbers for DivMod: use for Proj nodes!
 */
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typedef enum {
  pn_DivMod_M,           /**< Memory result.    */
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  pn_DivMod_X_except,    /**< Execution result if exception occured. */
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  pn_DivMod_res_div,     /**< Result of computation a / b. */
  pn_DivMod_res_mod      /**< Result of computation a % b. */
} pn_DivMod;  /* Projection numbers for DivMod. */

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ir_node *get_Div_left (ir_node *node);
void     set_Div_left (ir_node *node, ir_node *left);
ir_node *get_Div_right (ir_node *node);
void     set_Div_right (ir_node *node, ir_node *right);
ir_node *get_Div_mem (ir_node *node);
void     set_Div_mem (ir_node *node, ir_node *mem);
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/**
 * Projection numbers for Div: use for Proj nodes!
 */
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typedef enum {
  pn_Div_M,           /**< Memory result.    */
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  pn_Div_X_except,    /**< Execution result if exception occured. */
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  pn_Div_res          /**< Result of computation. */
} pn_Div;  /* Projection numbers for Div. */

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ir_node *get_Mod_left (ir_node *node);
void     set_Mod_left (ir_node *node, ir_node *left);
ir_node *get_Mod_right (ir_node *node);
void     set_Mod_right (ir_node *node, ir_node *right);
ir_node *get_Mod_mem (ir_node *node);
void     set_Mod_mem (ir_node *node, ir_node *mem);
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/**
 * Projection numbers for Mod: use for Proj nodes!
 */
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typedef enum {
  pn_Mod_M,           /**< Memory result.    */
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  pn_Mod_X_except,    /**< Execution result if exception occured. */
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  pn_Mod_res          /**< Result of computation. */
} pn_Mod;  /* Projection numbers for Mod. */

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ir_node *get_Abs_op (ir_node *node);
void     set_Abs_op (ir_node *node, ir_node *op);
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ir_node *get_And_left (ir_node *node);
void     set_And_left (ir_node *node, ir_node *left);
ir_node *get_And_right (ir_node *node);
void     set_And_right (ir_node *node, ir_node *right);
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ir_node *get_Or_left (ir_node *node);
void     set_Or_left (ir_node *node, ir_node *left);
ir_node *get_Or_right (ir_node *node);
void     set_Or_right (ir_node *node, ir_node *right);
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ir_node *get_Eor_left (ir_node *node);
void     set_Eor_left (ir_node *node, ir_node *left);
ir_node *get_Eor_right (ir_node *node);
void     set_Eor_right (ir_node *node, ir_node *right);
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ir_node *get_Not_op (ir_node *node);
void     set_Not_op (ir_node *node, ir_node *op);
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/**
 * Projection numbers for Cmp are defined several times.
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 * The bit patterns are used for various tests, so don't change.
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 * The "unordered" values are possible results of comparing
 * floating point numbers.
 */
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typedef enum {
  pn_Cmp_False = 0,   /**< false */
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  pn_Cmp_Eq,          /**< equal */
  pn_Cmp_Lt,          /**< less */
  pn_Cmp_Le,          /**< less or equal */
  pn_Cmp_Gt,          /**< greater */
  pn_Cmp_Ge,          /**< greater or equal */
  pn_Cmp_Lg,          /**< less or greater */
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  pn_Cmp_Leg = 7,     /**< less, equal or greater = ordered */
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  pn_Cmp_Uo,          /**< unordered */
  pn_Cmp_Ue,          /**< unordered or equal */
  pn_Cmp_Ul,          /**< unordered or less */
  pn_Cmp_Ule,         /**< unordered, less or equal */
  pn_Cmp_Ug,          /**< unordered or greater */
  pn_Cmp_Uge,         /**< unordered, greater or equal */
  pn_Cmp_Ne,          /**< unordered, less or greater = not equal */
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  pn_Cmp_True = 15    /**< true */
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  /* not_mask = Leg*/   /* bits to flip to negate comparison * @@ hack for jni interface */
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} pn_Cmp;   /* Projection numbers for Cmp */
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/* #define not_mask pn_Cmp_Leg */
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const char *get_pnc_string(int pnc);
int         get_negated_pnc(int pnc);
ir_node *get_Cmp_left (ir_node *node);
void     set_Cmp_left (ir_node *node, ir_node *left);
ir_node *get_Cmp_right (ir_node *node);
void     set_Cmp_right (ir_node *node, ir_node *right);
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ir_node *get_Shl_left (ir_node *node);
void     set_Shl_left (ir_node *node, ir_node *left);
ir_node *get_Shl_right (ir_node *node);
void     set_Shl_right (ir_node *node, ir_node *right);
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ir_node *get_Shr_left (ir_node *node);
void     set_Shr_left (ir_node *node, ir_node *left);
ir_node *get_Shr_right (ir_node *node);
void     set_Shr_right (ir_node *node, ir_node *right);
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ir_node *get_Shrs_left (ir_node *node);
void     set_Shrs_left (ir_node *node, ir_node *left);
ir_node *get_Shrs_right (ir_node *node);
void     set_Shrs_right (ir_node *node, ir_node *right);
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ir_node *get_Rot_left (ir_node *node);
void     set_Rot_left (ir_node *node, ir_node *left);
ir_node *get_Rot_right (ir_node *node);
void     set_Rot_right (ir_node *node, ir_node *right);
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ir_node *get_Conv_op (ir_node *node);
void     set_Conv_op (ir_node *node, ir_node *op);
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/* Does Cast need a mem operator?
 * Cast should only depend on the type, not on the state of an
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 * entity.  But:  we initialze various fields after Alloc, that
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 * are accessed in the cast.  This required some precaution, to
 * get the right memory into the Loads generated from the cast.
 */
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ir_node *get_Cast_op (ir_node *node);
void     set_Cast_op (ir_node *node, ir_node *op);
type    *get_Cast_type (ir_node *node);
void     set_Cast_type (ir_node *node, type *to_tp);
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/* Returns true if n is Phi or Filter in interprocedural_view. */
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int       is_Phi (ir_node *n);
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/* These routines also work for Filter nodes in interprocedural view. */
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ir_node **get_Phi_preds_arr (ir_node *node);
int       get_Phi_n_preds (ir_node *node);
ir_node  *get_Phi_pred (ir_node *node, int pos);
void      set_Phi_pred (ir_node *node, int pos, ir_node *pred);

ir_node  *get_Filter_pred(ir_node *node);
void      set_Filter_pred(ir_node *node, ir_node *pred);
long      get_Filter_proj(ir_node *node);
void      set_Filter_proj(ir_node *node, long proj);
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/* set the interprocedural predecessors, ...d_arr uses current_ir_graph.
 * @@@ Maybe better:  arity is zero if no cg preds. */
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void             set_Filter_cg_pred_arr(ir_node * node, int arity, ir_node ** in);
void             set_Filter_cg_pred(ir_node * node, int pos, ir_node * pred);
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int              get_Filter_n_cg_preds(ir_node *node);
ir_node *        get_Filter_cg_pred(ir_node *node, int pos);
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/**
 * Projection numbers for Load: use for Proj nodes!
 */
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typedef enum {
  pn_Load_M,         /**< Memory result.    */
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  pn_Load_X_except,  /**< Execution result if exception occured. */
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  pn_Load_res        /**< Result of load operation. */
} pn_Load;  /* Projection numbers for Load. */

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ir_node *get_Load_mem (ir_node *node);
void     set_Load_mem (ir_node *node, ir_node *mem);
ir_node *get_Load_ptr (ir_node *node);
void     set_Load_ptr (ir_node *node, ir_node *ptr);
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/**
 * Projection numbers for Store: use for Proj nodes!
 */
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typedef enum {
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  pn_Store_M,         /**< Memory result.    */
  pn_Store_X_except   /**< Execution result if exception occured. */
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} pn_Store;  /* Projection numbers for Store. */

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ir_node *get_Store_mem (ir_node *node);
void     set_Store_mem (ir_node *node, ir_node *mem);
ir_node *get_Store_ptr (ir_node *node);
void     set_Store_ptr (ir_node *node, ir_node *ptr);
ir_node *get_Store_value (ir_node *node);
void     set_Store_value (ir_node *node, ir_node *value);
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/**
 * Projection numbers for Alloc: use for Proj nodes!
 */
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typedef enum {
  pn_Alloc_M,    /**< Memory result. */
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  pn_Alloc_X_except,    /**< Execution result if exception occured. */
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  pn_Alloc_res   /**< Result of allocation. */
} pn_Alloc;  /* Projection numbers for Alloc. */

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ir_node *get_Alloc_mem (ir_node *node);
void     set_Alloc_mem (ir_node *node, ir_node *mem);
ir_node *get_Alloc_size (ir_node *node);
void     set_Alloc_size (ir_node *node, ir_node *size);
type    *get_Alloc_type (ir_node *node);
void     set_Alloc_type (ir_node *node, type *tp);
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/** The allocation place. */
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typedef enum {
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  stack_alloc,          /**< Alloc allocates the object on the stack. */
  heap_alloc            /**< Alloc allocates the object on the heap. */
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} where_alloc;
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where_alloc  get_Alloc_where (ir_node *node);
void         set_Alloc_where (ir_node *node, where_alloc where);

ir_node *get_Free_mem (ir_node *node);
void     set_Free_mem (ir_node *node, ir_node *mem);
ir_node *get_Free_ptr (ir_node *node);
void     set_Free_ptr (ir_node *node, ir_node *ptr);
ir_node *get_Free_size (ir_node *node);
void     set_Free_size (ir_node *node, ir_node *size);
type    *get_Free_type (ir_node *node);
void     set_Free_type (ir_node *node, type *tp);

ir_node **get_Sync_preds_arr (ir_node *node);
int       get_Sync_n_preds (ir_node *node);
ir_node  *get_Sync_pred (ir_node *node, int pos);
void      set_Sync_pred (ir_node *node, int pos, ir_node *pred);

ir_node  *get_Proj_pred (ir_node *node);
void      set_Proj_pred (ir_node *node, ir_node *pred);
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/* Why long? shouldn't int be enough, and smaller? Or even byte? */
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long      get_Proj_proj (ir_node *node);
void      set_Proj_proj (ir_node *node, long proj);
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ir_node **get_Tuple_preds_arr (ir_node *node);
int       get_Tuple_n_preds (ir_node *node);
ir_node  *get_Tuple_pred (ir_node *node, int pos);
void      set_Tuple_pred (ir_node *node, int pos, ir_node *pred);
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ir_node  *get_Id_pred (ir_node *node);
void      set_Id_pred (ir_node *node, ir_node *pred);
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/** Confirm has a single result and returns 'value' unchanged.
 *  The node expresses a restriction on 'value':
 *  'value' 'cmp' 'bound' == true.                                 */
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ir_node *get_Confirm_value (ir_node *node);
void     set_Confirm_value (ir_node *node, ir_node *value);
ir_node *get_Confirm_bound (ir_node *node);
void     set_Confirm_bound (ir_node *node, ir_node *bound);
pn_Cmp   get_Confirm_cmp   (ir_node *node);
void     set_Confirm_cmp   (ir_node *node, pn_Cmp cmp);
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/*
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 *
 * NAME Auxiliary routines
 *
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 *  Not properly documented ;-)
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 *
 */
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/** returns operand of node if node is a Proj. */
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ir_node *skip_Proj (ir_node *node);
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/** returns operand of node if node is a Id */
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ir_node *skip_nop  (ir_node *node);
ir_node *skip_Id  (ir_node *node);   /* Same as skip_nop. */
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/* returns corresponding operand of Tuple if node is a Proj from
   a Tuple. */
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ir_node *skip_Tuple (ir_node *node);
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/** returns operand of node if node is a Cast */
ir_node *skip_Cast  (ir_node *node);
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/** returns true if node is a Bad node. */
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int      is_Bad    (ir_node *node);
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/** returns true if the node is not a Block */
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int      is_no_Block (ir_node *node);
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/** returns true if the node is a Block */
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int      is_Block (ir_node *node);
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/** returns true if node is a Unknown node. */
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int      is_Unknown (ir_node *node);
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/** returns true if node is a Proj node or a Filter node in
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 * intraprocedural view */
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int      is_Proj (const ir_node *node);
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/** Returns true if the operation manipulates control flow:
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   Start, End, Jmp, Cond, Return, Raise, Bad, CallBegin, EndReg, EndExcept */
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int is_cfop(ir_node *node);
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/* @@@ old -- use get_irn_irg instead!  */
ir_graph *get_ip_cfop_irg(ir_node *n);

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/** Returns true if the operation manipulates interprocedural control flow:
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    CallBegin, EndReg, EndExcept */
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int is_ip_cfop(ir_node *node);
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/** Returns true if the operation can change the control flow because
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    of an exception: Call, Quot, DivMod, Div, Mod, Load, Store, Alloc,
    Bad. */
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int is_fragile_op(ir_node *node);
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/** Returns the memory operand of fragile operations. */
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ir_node *get_fragile_op_mem(ir_node *node);
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#include "ident.h"

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#ifdef __GNUC__
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/* GNU C has the __FUNCTION__ extension */
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#define __MYFUNC__ __FUNCTION__
#else
/* use Filename instead */
#define __MYFUNC__ __FILE__
#endif
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/* !!!!!!!!! @@@
   Don't format with "\", firmjni gets problems */
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/** Output location */
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#define DDM      printf("%s(l.%i).\n",                       __MYFUNC__, __LINE__);
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/** Output the firm kind of the node */
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#define DDMK(X)  printf("%s(l.%i) %s: %p\n",                 __MYFUNC__, __LINE__,  print_firm_kind(X), (void *)(X));
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/** Output information about a node */
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#define DDMN(X)  printf("%s(l.%i) %s%s: %ld (%p)\n",         __MYFUNC__, __LINE__,  get_irn_opname(X), get_mode_name(get_irn_mode(X)), get_irn_node_nr(X), (void *)(X))
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/** Output information about a node and its block */
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#define DDMNB(X) printf("%s%s: %ld (in block %ld)\n", get_irn_opname(X),  get_mode_name(get_irn_mode(X)), get_irn_node_nr(X), get_irn_node_nr(get_nodes_Block(X)))
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/** Output information about a type */
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#define DDMT(X)  printf("%s(l.%i) %s %s: %ld (%p)\n",        __MYFUNC__, __LINE__, get_type_tpop_name(X), get_type_name(X), get_type_nr(X), (void *)(X))
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/** Output information about an entity */
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#define DDME(X)  printf("%s(l.%i) %s: %ld (%p)\n",           __MYFUNC__, __LINE__, get_entity_name(X), get_entity_nr(X), (void *)(X))
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/** Output information about an entity and its type */
#define DDMET(X) printf("%s(l.%i) %s (typ: %s): %ld (%p)\n", __MYFUNC__, __LINE__, get_entity_name(X), get_type_name(get_entity_type(X)), get_entity_nr(X), (void *)(X))
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/** Output information about an entity and its owner */
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#define DDMEO(X) printf("%s(l.%i) %s (own: %s): %ld (%p)\n", __MYFUNC__, __LINE__, get_entity_name(X), get_type_name(get_entity_owner(X)), get_entity_nr(X), (void *)(X))
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/** Output information about a graph */
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#define DDMG(X)  printf("%s(l.%i) %s: %ld (%p)\n",           __MYFUNC__, __LINE__, get_entity_name(get_irg_ent(X)), get_irg_graph_nr(X), (void *)(X))
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/** Output information about an ident */
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#define DDMI(X)  printf("%s(l.%i) %s: %p\n",                 __MYFUNC__, __LINE__, id_to_str(X), (void *)(X))
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/** Output information about a mode */
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#define DDMM(X)  printf("%s(l.%i) %s: %p\n",                 __MYFUNC__, __LINE__, get_mode_name(X), (void *)(X))
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/** Output information about a loop */
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#define DDML(X)  printf("%s(l.%i) loop with depth %d: %d\n", __MYFUNC__, __LINE__, get_loop_depth(X), get_loop_loop_nr(X))
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/** Output information about a tarVal */
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#define DDMV(X)  printf("%s(l.%i) tarval: ",__MYFUNC__, __LINE__); tarval_printf(X); printf(" (%p)\n", (void *)(X));
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/*@}*/ /* end of ir_node group definition */
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# endif /* _IRNODE_H_ */