Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 79 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/ipa-ref.h b/gcc-4.9/gcc/ipa-ref.h
new file mode 100644
index 000000000..4ce5f8d2f
--- /dev/null
+++ b/gcc-4.9/gcc/ipa-ref.h
@@ -0,0 +1,79 @@
+/* IPA reference lists.
+   Copyright (C) 2010-2014 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 3, 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 COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+struct cgraph_node;
+class varpool_node;
+class symtab_node;
+
+
+/* How the reference is done.  */
+enum GTY(()) ipa_ref_use
+{
+  IPA_REF_LOAD,
+  IPA_REF_STORE,
+  IPA_REF_ADDR,
+  IPA_REF_ALIAS
+};
+
+/* Record of reference in callgraph or varpool.  */
+struct GTY(()) ipa_ref
+{
+  symtab_node *referring;
+  symtab_node *referred;
+  gimple stmt;
+  unsigned int lto_stmt_uid;
+  unsigned int referred_index;
+  ENUM_BITFIELD (ipa_ref_use) use:2;
+  unsigned int speculative:1;
+};
+
+typedef struct ipa_ref ipa_ref_t;
+typedef struct ipa_ref *ipa_ref_ptr;
+
+
+/* List of references.  This is stored in both callgraph and varpool nodes.  */
+struct GTY(()) ipa_ref_list
+{
+  /* Store actual references in references vector.  */
+  vec<ipa_ref_t, va_gc> *references;
+  /* Referring is vector of pointers to references.  It must not live in GGC space
+     or GGC will try to mark middle of references vectors.  */
+  vec<ipa_ref_ptr>  GTY((skip)) referring;
+};
+
+struct ipa_ref * ipa_record_reference (symtab_node *,
+				       symtab_node *,
+				       enum ipa_ref_use, gimple);
+struct ipa_ref * ipa_maybe_record_reference (symtab_node *, tree,
+					     enum ipa_ref_use, gimple);
+
+void ipa_remove_reference (struct ipa_ref *);
+void ipa_remove_all_references (struct ipa_ref_list *);
+void ipa_remove_all_referring (struct ipa_ref_list *);
+void ipa_dump_references (FILE *, struct ipa_ref_list *);
+void ipa_dump_referring (FILE *, struct ipa_ref_list *);
+void ipa_clone_references (symtab_node *, struct ipa_ref_list *);
+void ipa_clone_referring (symtab_node *, struct ipa_ref_list *);
+struct ipa_ref * ipa_clone_ref (struct ipa_ref *, symtab_node *, gimple);
+bool ipa_ref_cannot_lead_to_return (struct ipa_ref *);
+bool ipa_ref_has_aliases_p (struct ipa_ref_list *);
+struct ipa_ref * ipa_find_reference (symtab_node *, symtab_node *, gimple, unsigned int);
+void ipa_remove_stmt_references (symtab_node *, gimple);
+void ipa_clear_stmts_in_references (symtab_node *);