ipa-devirt.c (type_with_linkage_p, [...]): Move to ...
* ipa-devirt.c (type_with_linkage_p, type_in_anonymous_namespace_p, odr_type_p): Move to ... * ipa-utils.h (type_with_linkage_p, type_in_anonymous_namespace_p, odr_type_p): here; miscro-optimize. From-SVN: r231098
This commit is contained in:
Jan Hubicka
Jan Hubicka
parent
cdf66caf4f
commit
a6c5361c08
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@ -1,3 +1,10 @@
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2015-12-01 Jan Hubicka <hubicka@ucw.cz>
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* ipa-devirt.c (type_with_linkage_p, type_in_anonymous_namespace_p,
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odr_type_p): Move to ...
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* ipa-utils.h (type_with_linkage_p, type_in_anonymous_namespace_p,
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odr_type_p): here; miscro-optimize.
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2015-12-01 Bin Cheng <bin.cheng@arm.com>
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PR tree-optimization/68529
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@ -209,93 +209,6 @@ struct GTY(()) odr_type_d
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bool rtti_broken;
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};
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/* Return true if T is a type with linkage defined. */
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bool
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type_with_linkage_p (const_tree t)
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{
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/* Builtin types do not define linkage, their TYPE_CONTEXT is NULL. */
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if (!TYPE_CONTEXT (t)
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|| !TYPE_NAME (t) || TREE_CODE (TYPE_NAME (t)) != TYPE_DECL
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|| !TYPE_STUB_DECL (t))
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return false;
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/* In LTO do not get confused by non-C++ produced types or types built
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with -fno-lto-odr-type-merigng. */
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if (in_lto_p)
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{
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/* To support -fno-lto-odr-type-merigng recognize types with vtables
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to have linkage. */
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if (RECORD_OR_UNION_TYPE_P (t)
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&& TYPE_BINFO (t) && BINFO_VTABLE (TYPE_BINFO (t)))
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return true;
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/* Do not accept any other types - we do not know if they were produced
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by C++ FE. */
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if (!DECL_ASSEMBLER_NAME_SET_P (TYPE_NAME (t)))
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return false;
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}
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return (RECORD_OR_UNION_TYPE_P (t)
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|| TREE_CODE (t) == ENUMERAL_TYPE);
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}
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/* Return true if T is in anonymous namespace.
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This works only on those C++ types with linkage defined. */
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bool
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type_in_anonymous_namespace_p (const_tree t)
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{
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gcc_assert (type_with_linkage_p (t));
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/* Keep -fno-lto-odr-type-merging working by recognizing classes with vtables
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properly into anonymous namespaces. */
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if (RECORD_OR_UNION_TYPE_P (t)
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&& TYPE_BINFO (t) && BINFO_VTABLE (TYPE_BINFO (t)))
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return (TYPE_STUB_DECL (t) && !TREE_PUBLIC (TYPE_STUB_DECL (t)));
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if (TYPE_STUB_DECL (t) && !TREE_PUBLIC (TYPE_STUB_DECL (t)))
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{
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/* C++ FE uses magic <anon> as assembler names of anonymous types.
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verify that this match with type_in_anonymous_namespace_p. */
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if (in_lto_p)
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gcc_checking_assert (!strcmp ("<anon>",
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IDENTIFIER_POINTER
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(DECL_ASSEMBLER_NAME (TYPE_NAME (t)))));
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return true;
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}
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return false;
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}
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/* Return true of T is type with One Definition Rule info attached.
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It means that either it is anonymous type or it has assembler name
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set. */
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bool
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odr_type_p (const_tree t)
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{
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/* We do not have this information when not in LTO, but we do not need
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to care, since it is used only for type merging. */
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gcc_checking_assert (in_lto_p || flag_lto);
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/* To support -fno-lto-odr-type-merging consider types with vtables ODR. */
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if (type_with_linkage_p (t) && type_in_anonymous_namespace_p (t))
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return true;
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if (TYPE_NAME (t) && TREE_CODE (TYPE_NAME (t)) == TYPE_DECL
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&& (DECL_ASSEMBLER_NAME_SET_P (TYPE_NAME (t))))
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{
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/* C++ FE uses magic <anon> as assembler names of anonymous types.
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verify that this match with type_in_anonymous_namespace_p. */
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gcc_checking_assert (!type_with_linkage_p (t)
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|| strcmp ("<anon>",
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IDENTIFIER_POINTER
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(DECL_ASSEMBLER_NAME (TYPE_NAME (t))))
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|| type_in_anonymous_namespace_p (t));
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return true;
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}
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return false;
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}
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/* Return TRUE if all derived types of T are known and thus
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we may consider the walk of derived type complete.
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@ -63,8 +63,6 @@ possible_polymorphic_call_targets (tree, HOST_WIDE_INT,
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void **cache_token = NULL,
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bool speuclative = false);
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odr_type get_odr_type (tree, bool insert = false);
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bool type_in_anonymous_namespace_p (const_tree);
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bool type_with_linkage_p (const_tree);
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bool odr_type_p (const_tree);
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bool possible_polymorphic_call_target_p (tree ref, gimple *stmt, struct cgraph_node *n);
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void dump_possible_polymorphic_call_targets (FILE *, tree, HOST_WIDE_INT,
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@ -176,6 +174,92 @@ polymorphic_type_binfo_p (const_tree binfo)
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return (BINFO_TYPE (binfo) && TYPE_BINFO (BINFO_TYPE (binfo))
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&& BINFO_VTABLE (TYPE_BINFO (BINFO_TYPE (binfo))));
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}
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/* Return true if T is a type with linkage defined. */
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inline bool
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type_with_linkage_p (const_tree t)
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{
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if (!TYPE_NAME (t) || TREE_CODE (TYPE_NAME (t)) != TYPE_DECL
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|| !TYPE_STUB_DECL (t))
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return false;
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/* In LTO do not get confused by non-C++ produced types or types built
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with -fno-lto-odr-type-merigng. */
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if (in_lto_p)
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{
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/* To support -fno-lto-odr-type-merigng recognize types with vtables
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to have linkage. */
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if (RECORD_OR_UNION_TYPE_P (t)
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&& TYPE_BINFO (t) && BINFO_VTABLE (TYPE_BINFO (t)))
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return true;
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/* With -flto-odr-type-merging C++ FE specify mangled names
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for all types with the linkage. */
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return DECL_ASSEMBLER_NAME_SET_P (TYPE_NAME (t));
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}
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if (!RECORD_OR_UNION_TYPE_P (t) && TREE_CODE (t) != ENUMERAL_TYPE)
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return false;
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/* Builtin types do not define linkage, their TYPE_CONTEXT is NULL. */
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if (!TYPE_CONTEXT (t))
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return false;
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return true;
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}
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/* Return true if T is in anonymous namespace.
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This works only on those C++ types with linkage defined. */
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inline bool
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type_in_anonymous_namespace_p (const_tree t)
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{
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gcc_checking_assert (type_with_linkage_p (t));
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if (!TREE_PUBLIC (TYPE_STUB_DECL (t)))
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{
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/* C++ FE uses magic <anon> as assembler names of anonymous types.
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verify that this match with type_in_anonymous_namespace_p. */
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gcc_checking_assert (!in_lto_p || !DECL_ASSEMBLER_NAME_SET_P (t)
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|| !strcmp
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("<anon>",
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IDENTIFIER_POINTER
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(DECL_ASSEMBLER_NAME (TYPE_NAME (t)))));
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return true;
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}
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return false;
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}
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/* Return true of T is type with One Definition Rule info attached.
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It means that either it is anonymous type or it has assembler name
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set. */
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inline bool
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odr_type_p (const_tree t)
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{
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/* We do not have this information when not in LTO, but we do not need
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to care, since it is used only for type merging. */
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gcc_checking_assert (in_lto_p || flag_lto);
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if (!type_with_linkage_p (t))
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return false;
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/* To support -fno-lto-odr-type-merging consider types with vtables ODR. */
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if (type_in_anonymous_namespace_p (t))
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return true;
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if (TYPE_NAME (t) && TREE_CODE (TYPE_NAME (t)) == TYPE_DECL
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&& DECL_ASSEMBLER_NAME_SET_P (TYPE_NAME (t)))
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{
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/* C++ FE uses magic <anon> as assembler names of anonymous types.
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verify that this match with type_in_anonymous_namespace_p. */
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gcc_checking_assert (strcmp ("<anon>",
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IDENTIFIER_POINTER
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(DECL_ASSEMBLER_NAME (TYPE_NAME (t)))));
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return true;
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}
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return false;
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}
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#endif /* GCC_IPA_UTILS_H */
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