80 lines
2.6 KiB
C++
80 lines
2.6 KiB
C++
/* IPA reference lists.
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Copyright (C) 2010-2013 Free Software Foundation, Inc.
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Contributed by Jan Hubicka
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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struct cgraph_node;
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struct varpool_node;
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class symtab_node;
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/* How the reference is done. */
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enum GTY(()) ipa_ref_use
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{
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IPA_REF_LOAD,
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IPA_REF_STORE,
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IPA_REF_ADDR,
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IPA_REF_ALIAS
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};
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/* Record of reference in callgraph or varpool. */
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struct GTY(()) ipa_ref
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{
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symtab_node *referring;
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symtab_node *referred;
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gimple stmt;
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unsigned int lto_stmt_uid;
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unsigned int referred_index;
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ENUM_BITFIELD (ipa_ref_use) use:2;
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unsigned int speculative:1;
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};
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typedef struct ipa_ref ipa_ref_t;
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typedef struct ipa_ref *ipa_ref_ptr;
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/* List of references. This is stored in both callgraph and varpool nodes. */
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struct GTY(()) ipa_ref_list
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{
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/* Store actual references in references vector. */
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vec<ipa_ref_t, va_gc> *references;
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/* Referring is vector of pointers to references. It must not live in GGC space
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or GGC will try to mark middle of references vectors. */
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vec<ipa_ref_ptr> GTY((skip)) referring;
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};
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struct ipa_ref * ipa_record_reference (symtab_node *,
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symtab_node *,
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enum ipa_ref_use, gimple);
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struct ipa_ref * ipa_maybe_record_reference (symtab_node *, tree,
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enum ipa_ref_use, gimple);
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void ipa_remove_reference (struct ipa_ref *);
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void ipa_remove_all_references (struct ipa_ref_list *);
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void ipa_remove_all_referring (struct ipa_ref_list *);
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void ipa_dump_references (FILE *, struct ipa_ref_list *);
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void ipa_dump_referring (FILE *, struct ipa_ref_list *);
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void ipa_clone_references (symtab_node *, struct ipa_ref_list *);
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void ipa_clone_referring (symtab_node *, struct ipa_ref_list *);
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struct ipa_ref * ipa_clone_ref (struct ipa_ref *, symtab_node *, gimple);
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bool ipa_ref_cannot_lead_to_return (struct ipa_ref *);
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bool ipa_ref_has_aliases_p (struct ipa_ref_list *);
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struct ipa_ref * ipa_find_reference (symtab_node *, symtab_node *, gimple, unsigned int);
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void ipa_remove_stmt_references (symtab_node *, gimple);
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void ipa_clear_stmts_in_references (symtab_node *);
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