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-/* Interprocedural analyses.
-   Copyright (C) 2005 Free Software Foundation, Inc.
-
-This file is part of GCC.
-
-GCC is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
-version.
-
-GCC is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING.  If not, write to the Free
-Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301, USA.  */
-
-#ifndef IPA_PROP_H
-#define IPA_PROP_H
-
-#include "tree.h"
-
-/* The following definitions and interfaces are used by
-   interprocedural analyses.  */
-
-/* A jump function for a callsite represents the values passed as actual 
-   arguments of the callsite. There are three main types of values :
-   Formal - the caller's formal parameter is passed as an actual argument.
-   Constant - a constant is passed as a an actual argument.
-   Unknown - neither of the above.
-   Integer and real constants are represented as CONST_IPATYPE and Fortran 
-   constants are represented as CONST_IPATYPE_REF.  */
-enum jump_func_type
-{
-  UNKNOWN_IPATYPE,
-  CONST_IPATYPE,
-  CONST_IPATYPE_REF,
-  FORMAL_IPATYPE
-};
-
-/* All formal parameters in the program have a cval computed by 
-   the interprocedural stage of IPCP.  
-   There are three main values of cval :
-   TOP - unknown.
-   BOTTOM - non constant.
-   CONSTANT_TYPE - constant value.
-   Cval of formal f will have a constant value if all callsites to this
-   function have the same constant value passed to f.
-   Integer and real constants are represented as CONST_IPATYPE and Fortran
-   constants are represented as CONST_IPATYPE_REF.  */
-enum cvalue_type
-{
-  BOTTOM,
-  CONST_VALUE,
-  CONST_VALUE_REF,
-  TOP
-};
-
-/* Represents the value of either jump function or cval.
-   value represents a constant.
-   formal_id is used only in jump function context and represents 
-   pass-through parameter (the formal of caller is passed 
-   as argument).  */
-union parameter_info
-{
-  unsigned int formal_id;
-  tree value;
-};
-
-/* A jump function for a callsite represents the values passed as actual 
-   arguments of the callsite. See enum jump_func_type for the various 
-   types of jump functions supported.  */
-struct ipa_jump_func
-{
-  enum jump_func_type type;
-  union parameter_info info_type;
-};
-
-/* All formal parameters in the program have a cval computed by 
-   the interprocedural stage of IPCP. See enum cvalue_type for 
-   the various types of cvals supported */
-struct ipcp_formal
-{
-  enum cvalue_type cval_type;
-  union parameter_info cvalue;
-};
-
-/* Represent which DECL tree (or reference to such tree)
-   will be replaced by another tree while versioning.  */
-struct ipa_replace_map
-{
-  /* The tree that will be replaced.  */
-  tree old_tree;
-  /* The new (replacing) tree.  */ 
-  tree new_tree;
-  /* True when a substitution should be done, false otherwise.  */
-  bool replace_p;
-  /* True when we replace a reference to old_tree.  */
-  bool ref_p;
-};
-
-/* Return the field in cgraph_node/cgraph_edge struct that points
-   to ipa_node/ipa_edge struct.  */
-#define IPA_NODE_REF(MT) ((struct ipa_node *)(MT)->aux)
-#define IPA_EDGE_REF(EDGE) ((struct ipa_edge *)(EDGE)->aux)
-
-/* ipa_node stores information related to a method and
-   its formal parameters. It is pointed to by a field in the
-   method's corresponding cgraph_node.
-
-   ipa_edge stores information related to a callsite and
-   its arguments. It is pointed to by a field in the
-   callsite's corresponding cgraph_edge.  */
-struct ipa_node
-{
-  /* Number of formal parameters of this method.  When set to 0,
-     this method's parameters would not be analyzed by the different
-     stages of IPA CP.  */
-  int ipa_arg_num;
-  /* Array of cvals.  */
-  struct ipcp_formal *ipcp_cval;
-  /* Mapping each parameter to its PARM_DECL tree.  */
-  tree *ipa_param_tree;
-  /* Indicating which parameter is modified in its method.  */
-  bool *ipa_mod;
-  /* Only for versioned nodes this field would not be NULL,
-     it points to the node that IPA cp cloned from.  */
-  struct cgraph_node *ipcp_orig_node;
-  /* Meaningful only for original methods.  Expresses the 
-     ratio between the direct calls and sum of all invocations of 
-     this function (given by profiling info).  It is used to calculate 
-     the profiling information of the original function and the versioned
-     one.  */
-  gcov_type count_scale;
-};
-
-struct ipa_edge
-{
-  /* Number of actual arguments in this callsite.  When set to 0,
-     this callsite's parameters would not be analyzed by the different
-     stages of IPA CP.  */
-  int ipa_param_num;
-  /* Array of the callsite's jump function of each parameter.  */
-  struct ipa_jump_func *ipa_param_map;
-};
-
-/* A methodlist element (referred to also as methodlist node). It is used 
-   to create a temporary worklist used in 
-   the propagation stage of IPCP. (can be used for more IPA 
-   optimizations)  */
-struct ipa_methodlist
-{
-  struct cgraph_node *method_p;
-  struct ipa_methodlist *next_method;
-};
-
-/* A pointer to a methodlist element.  */
-typedef struct ipa_methodlist *ipa_methodlist_p;
-
-/* ipa_methodlist interface.  */
-ipa_methodlist_p ipa_methodlist_init (void);
-bool ipa_methodlist_not_empty (ipa_methodlist_p);
-void ipa_add_method (ipa_methodlist_p *, struct cgraph_node *);
-struct cgraph_node *ipa_remove_method (ipa_methodlist_p *);
-
-/* ipa_callsite interface.  */
-int ipa_callsite_param_count (struct cgraph_edge *);
-void ipa_callsite_param_count_set (struct cgraph_edge *, int);
-struct ipa_jump_func *ipa_callsite_param (struct cgraph_edge *, int);
-struct cgraph_node *ipa_callsite_callee (struct cgraph_edge *);
-void ipa_callsite_compute_param (struct cgraph_edge *);
-void ipa_callsite_compute_count (struct cgraph_edge *);
-
-/* ipa_method interface.  */
-int ipa_method_formal_count (struct cgraph_node *);
-void ipa_method_formal_count_set (struct cgraph_node *, int);
-tree ipa_method_get_tree (struct cgraph_node *, int);
-void ipa_method_compute_tree_map (struct cgraph_node *);
-void ipa_method_formal_compute_count (struct cgraph_node *);
-void ipa_method_compute_modify (struct cgraph_node *);
-
-/* jump function interface.  */
-enum jump_func_type get_type (struct ipa_jump_func *);
-union parameter_info *ipa_jf_get_info_type (struct ipa_jump_func *);
-
-/* ipa_node and ipa_edge interfaces.  */
-void ipa_node_create (struct cgraph_node *);
-void ipa_free (void);
-void ipa_nodes_create (void);
-void ipa_edges_create (void);
-void ipa_edges_free (void);
-void ipa_nodes_free (void);
-
-
-/* Debugging interface.  */
-void ipa_method_tree_print (FILE *);
-void ipa_method_modify_print (FILE *);
-
-unsigned int ipcp_driver (void);
-
-#endif /* IPA_PROP_H */