-/* lang_hooks.tree_inlining.walk_subtrees is called by walk_tree()
- after handling common cases, but before walking code-specific
- sub-trees. If this hook is overridden for a language, it should
- handle language-specific tree codes, as well as language-specific
- information associated to common tree codes. If a tree node is
- completely handled within this function, it should set *SUBTREES to
- 0, so that generic handling isn't attempted. For language-specific
- tree codes, generic handling would abort(), so make sure it is set
- properly. Both SUBTREES and *SUBTREES is guaranteed to be nonzero
- when the function is called. */
-
-tree
-lhd_tree_inlining_walk_subtrees (tree *tp ATTRIBUTE_UNUSED,
- int *subtrees ATTRIBUTE_UNUSED,
- walk_tree_fn func ATTRIBUTE_UNUSED,
- void *data ATTRIBUTE_UNUSED,
- void *htab ATTRIBUTE_UNUSED)
-{
- return NULL_TREE;
-}
-
-/* lang_hooks.tree_inlining.cannot_inline_tree_fn is called to
- determine whether there are language-specific reasons for not
- inlining a given function. */
-
-int
-lhd_tree_inlining_cannot_inline_tree_fn (tree *fnp)
-{
- if (flag_really_no_inline
- && lookup_attribute ("always_inline", DECL_ATTRIBUTES (*fnp)) == NULL)
- return 1;
-
- return 0;
-}
-
-/* lang_hooks.tree_inlining.disregard_inline_limits is called to
- determine whether a function should be considered for inlining even
- if it would exceed inlining limits. */
-
-int
-lhd_tree_inlining_disregard_inline_limits (tree fn)
-{
- if (lookup_attribute ("always_inline", DECL_ATTRIBUTES (fn)) != NULL)
- return 1;
-
- return 0;
-}
-
-/* lang_hooks.tree_inlining.add_pending_fn_decls is called before
- starting to inline a function, to push any language-specific
- functions that should not be inlined into the current function,
- into VAFNP. PFN is the top of varray, and should be returned if no
- functions are pushed into VAFNP. The top of the varray should be
- returned. */
-
-tree
-lhd_tree_inlining_add_pending_fn_decls (void *vafnp ATTRIBUTE_UNUSED, tree pfn)
-{
- return pfn;
-}
-
-/* lang_hooks.tree_inlining.auto_var_in_fn_p is called to determine
- whether VT is an automatic variable defined in function FT. */
-
-int
-lhd_tree_inlining_auto_var_in_fn_p (tree var, tree fn)
-{
- return (DECL_P (var) && DECL_CONTEXT (var) == fn
- && (((TREE_CODE (var) == VAR_DECL || TREE_CODE (var) == PARM_DECL)
- && ! TREE_STATIC (var))
- || TREE_CODE (var) == LABEL_DECL
- || TREE_CODE (var) == RESULT_DECL));
-}
-
-/* lang_hooks.tree_inlining.anon_aggr_type_p determines whether T is a
- type node representing an anonymous aggregate (union, struct, etc),
- i.e., one whose members are in the same scope as the union itself. */
-
-int
-lhd_tree_inlining_anon_aggr_type_p (tree t ATTRIBUTE_UNUSED)
-{
- return 0;
-}
-
-/* lang_hooks.tree_inlining.start_inlining and end_inlining perform any
- language-specific bookkeeping necessary for processing
- FN. start_inlining returns nonzero if inlining should proceed, zero if
- not.
-
- For instance, the C++ version keeps track of template instantiations to
- avoid infinite recursion. */
-
-int
-lhd_tree_inlining_start_inlining (tree fn ATTRIBUTE_UNUSED)
-{
- return 1;
-}
-
-void
-lhd_tree_inlining_end_inlining (tree fn ATTRIBUTE_UNUSED)
-{
-}
-
-/* lang_hooks.tree_inlining.convert_parm_for_inlining performs any
- language-specific conversion before assigning VALUE to PARM. */
-
-tree
-lhd_tree_inlining_convert_parm_for_inlining (tree parm ATTRIBUTE_UNUSED,
- tree value,
- tree fndecl ATTRIBUTE_UNUSED,
- int argnum ATTRIBUTE_UNUSED)
-{
- return value;
-}
-