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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.2.2/] [gcc/] [tree-inline.h] - Rev 416
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/* Tree inlining hooks and declarations. Copyright 2001, 2003, 2004, 2005, 2007 Free Software Foundation, Inc. Contributed by Alexandre Oliva <aoliva@redhat.com> 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/>. */ #ifndef GCC_TREE_INLINE_H #define GCC_TREE_INLINE_H #include "varray.h" #include "splay-tree.h" /* Data required for function body duplication. */ typedef struct copy_body_data { /* FUNCTION_DECL for function being inlined, or in general the source function providing the original trees. */ tree src_fn; /* FUNCTION_DECL for function being inlined into, or in general the destination function receiving the new trees. */ tree dst_fn; /* Callgraph node of the source function. */ struct cgraph_node *src_node; /* Callgraph node of the destination function. */ struct cgraph_node *dst_node; /* struct function for function being inlined. Usually this is the same as DECL_STRUCT_FUNCTION (src_fn), but can be different if saved_cfg and saved_eh are in use. */ struct function *src_cfun; /* The VAR_DECL for the return value. */ tree retvar; /* The map from local declarations in the inlined function to equivalents in the function into which it is being inlined. */ splay_tree decl_map; /* Create a new decl to replace DECL in the destination function. */ tree (*copy_decl) (tree, struct copy_body_data *); /* Current BLOCK. */ tree block; /* Exception region the inlined call lie in. */ int eh_region; /* Take region number in the function being copied, add this value and get eh region number of the duplicate in the function we inline into. */ int eh_region_offset; /* We use the same mechanism do all sorts of different things. Rather than enumerating the different cases, we categorize the behavior in the various situations. */ /* Indicate the desired behavior wrt call graph edges. We can either duplicate the edge (inlining, cloning), move the edge (versioning, parallelization), or move the edges of the clones (saving). */ enum copy_body_cge_which { CB_CGE_DUPLICATE, CB_CGE_MOVE, CB_CGE_MOVE_CLONES } transform_call_graph_edges; /* True if a new CFG should be created. False for inlining, true for everything else. */ bool transform_new_cfg; /* True if RETURN_EXPRs should be transformed to just the contained MODIFY_EXPR. The branch semantics of the return will be handled by manipulating the CFG rather than a statement. */ bool transform_return_to_modify; /* True if lang_hooks.decls.insert_block should be invoked when duplicating BLOCK nodes. */ bool transform_lang_insert_block; } copy_body_data; /* Function prototypes. */ extern tree copy_body_r (tree *, int *, void *); extern void insert_decl_map (copy_body_data *, tree, tree); void optimize_inline_calls (tree); bool tree_inlinable_function_p (tree); tree copy_tree_r (tree *, int *, void *); void clone_body (tree, tree, void *); void save_body (tree, tree *, tree *); int estimate_move_cost (tree type); void push_cfun (struct function *new_cfun); void pop_cfun (void); int estimate_num_insns (tree expr); bool tree_versionable_function_p (tree); void tree_function_versioning (tree, tree, varray_type, bool); extern tree remap_decl (tree decl, copy_body_data *id); extern tree remap_type (tree type, copy_body_data *id); /* 0 if we should not perform inlining. 1 if we should expand functions calls inline at the tree level. 2 if we should consider *all* functions to be inline candidates. */ extern int flag_inline_trees; #endif /* GCC_TREE_INLINE_H */
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