Gcc 3.4.2 20040728.

1 files changed, 192 insertions, 0 deletions

diff --git a/contrib/gcc/cgraph.h b/contrib/gcc/cgraph.h
new file mode 100644
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--- /dev/null
+++ b/contrib/gcc/cgraph.h
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+/* Callgraph handling code.
+   Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+   Contributed by Jan Hubicka
+
+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, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.  */
+
+#ifndef GCC_CGRAPH_H
+#define GCC_CGRAPH_H
+
+/* Information about the function collected locally.
+   Available after function is analyzed.  */
+
+struct cgraph_local_info GTY(())
+{
+  /* Size of the function before inlining.  */
+  int self_insns;
+
+  /* Set when function function is visible in current compilation unit only
+     and it's address is never taken.  */
+  bool local;
+  /* Set once it has been finalized so we consider it to be output.  */
+  bool finalized;
+
+  /* False when there something makes inlining impossible (such as va_arg).  */
+  bool inlinable;
+  /* True when function should be inlined independently on it's size.  */
+  bool disregard_inline_limits;
+  /* True when the function has been originally extern inline, but it is
+     redefined now.  */
+  bool redefined_extern_inline;
+};
+
+/* Information about the function that needs to be computed globally
+   once compilation is finished.  Available only with -funit-at-time.  */
+
+struct cgraph_global_info GTY(())
+{
+  /* Estimated size of the function after inlining.  */
+  int insns;
+
+  /* Number of times given function will be cloned during output.  */
+  int cloned_times;
+
+  /* Set when the function will be inlined exactly once.  */
+  bool inline_once;
+
+  /* Set to true for all reachable functions before inlining is decided.
+     Once we inline all calls to the function and the function is local,
+     it is set to false.  */
+  bool will_be_output;
+
+  /* Set iff at least one of the caller edges has inline_call flag set.  */
+  bool inlined;
+};
+
+/* Information about the function that is propagated by the RTL backend.
+   Available only for functions that has been already assembled.  */
+
+struct cgraph_rtl_info GTY(())
+{
+   bool const_function;
+   bool pure_function;
+   int preferred_incoming_stack_boundary;
+};
+
+
+/* The cgraph data structure.
+   Each function decl has assigned cgraph_node listing callees and callers.  */
+
+struct cgraph_node GTY((chain_next ("%h.next"), chain_prev ("%h.previous")))
+{
+  tree decl;
+  struct cgraph_edge *callees;
+  struct cgraph_edge *callers;
+  struct cgraph_node *next;
+  struct cgraph_node *previous;
+  /* For nested functions points to function the node is nested in.  */
+  struct cgraph_node *origin;
+  /* Points to first nested function, if any.  */
+  struct cgraph_node *nested;
+  /* Pointer to the next function with same origin, if any.  */
+  struct cgraph_node *next_nested;
+  /* Pointer to the next function in cgraph_nodes_queue.  */
+  struct cgraph_node *next_needed;
+  PTR GTY ((skip (""))) aux;
+
+  struct cgraph_local_info local;
+  struct cgraph_global_info global;
+  struct cgraph_rtl_info rtl;
+  /* Unique id of the node.  */
+  int uid;
+  /* Set when function must be output - it is externally visible
+     or it's address is taken.  */
+  bool needed;
+  /* Set when function is reachable by call from other function
+     that is either reachable or needed.  */
+  bool reachable;
+  /* Set once the function has been instantiated and its callee
+     lists created.  */
+  bool analyzed;
+  /* Set when function is scheduled to be assembled.  */
+  bool output;
+};
+
+struct cgraph_edge GTY(())
+{
+  struct cgraph_node *caller;
+  struct cgraph_node *callee;
+  struct cgraph_edge *next_caller;
+  struct cgraph_edge *next_callee;
+  /* When NULL, inline this call.  When non-NULL, points to the explanation
+     why function was not inlined.  */
+  const char *inline_failed;
+};
+
+/* The cgraph_varpool data structure.
+   Each static variable decl has assigned cgraph_varpool_node.  */
+
+struct cgraph_varpool_node GTY(())
+{
+  tree decl;
+  /* Pointer to the next function in cgraph_varpool_nodes_queue.  */
+  struct cgraph_varpool_node *next_needed;
+
+  /* Set when function must be output - it is externally visible
+     or it's address is taken.  */
+  bool needed;
+  /* Set once it has been finalized so we consider it to be output.  */
+  bool finalized;
+  /* Set when function is scheduled to be assembled.  */
+  bool output;
+};
+
+extern GTY(()) struct cgraph_node *cgraph_nodes;
+extern GTY(()) int cgraph_n_nodes;
+extern GTY(()) int cgraph_max_uid;
+extern bool cgraph_global_info_ready;
+extern GTY(()) struct cgraph_node *cgraph_nodes_queue;
+extern FILE *cgraph_dump_file;
+
+extern GTY(()) int cgraph_varpool_n_nodes;
+extern GTY(()) struct cgraph_varpool_node *cgraph_varpool_nodes_queue;
+
+
+/* In cgraph.c  */
+void dump_cgraph (FILE *);
+void cgraph_remove_edge (struct cgraph_node *, struct cgraph_node *);
+void cgraph_remove_call (tree, tree);
+void cgraph_remove_node (struct cgraph_node *);
+struct cgraph_edge *cgraph_record_call (tree, tree);
+struct cgraph_node *cgraph_node (tree decl);
+struct cgraph_node *cgraph_node_for_identifier (tree id);
+bool cgraph_calls_p (tree, tree);
+struct cgraph_local_info *cgraph_local_info (tree);
+struct cgraph_global_info *cgraph_global_info (tree);
+struct cgraph_rtl_info *cgraph_rtl_info (tree);
+const char * cgraph_node_name (struct cgraph_node *);
+
+struct cgraph_varpool_node *cgraph_varpool_node (tree decl);
+struct cgraph_varpool_node *cgraph_varpool_node_for_identifier (tree id);
+void cgraph_varpool_mark_needed_node (struct cgraph_varpool_node *);
+void cgraph_varpool_finalize_decl (tree);
+bool cgraph_varpool_assemble_pending_decls (void);
+
+bool cgraph_function_possibly_inlined_p (tree);
+
+/* In cgraphunit.c  */
+bool cgraph_assemble_pending_functions (void);
+void cgraph_finalize_function (tree, bool);
+void cgraph_finalize_compilation_unit (void);
+void cgraph_create_edges (tree, tree);
+void cgraph_optimize (void);
+void cgraph_mark_needed_node (struct cgraph_node *);
+void cgraph_mark_reachable_node (struct cgraph_node *);
+bool cgraph_inline_p (tree, tree, const char **reason);
+
+#endif  /* GCC_CGRAPH_H  */