/* Tree inlining hooks and declarations. Copyright 2001, 2003, 2004, 2005, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. Contributed by Alexandre Oliva 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 . */ #ifndef GCC_TREE_INLINE_H #define GCC_TREE_INLINE_H #include "vecir.h" /* For VEC(gimple,heap). */ struct cgraph_edge; /* 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 }; /* 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. */ struct pointer_map_t *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; /* GIMPLE_CALL if va arg parameter packs should be expanded or NULL is not. */ gimple gimple_call; /* Exception landing pad the inlined call lies in. */ int eh_lp_nr; /* Maps region and landing pad structures from the function being copied to duplicates created within the function we inline into. */ struct pointer_map_t *eh_map; /* 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. */ /* What to do with call graph edges. */ enum copy_body_cge_which 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 this statement will need to be regimplified. */ bool regimplify; /* True if trees should not be unshared. */ bool do_not_unshare; /* > 0 if we are remapping a type currently. */ int remapping_type_depth; /* A function to be called when duplicating BLOCK nodes. */ void (*transform_lang_insert_block) (tree); /* Statements that might be possibly folded. */ struct pointer_set_t *statements_to_fold; /* Entry basic block to currently copied body. */ struct basic_block_def *entry_bb; /* Debug statements that need processing. */ VEC(gimple,heap) *debug_stmts; /* A map from local declarations in the inlined function to equivalents in the function into which it is being inlined, where the originals have been mapped to a value rather than to a variable. */ struct pointer_map_t *debug_map; } copy_body_data; /* Weights of constructions for estimate_num_insns. */ typedef struct eni_weights_d { /* Cost per call. */ unsigned call_cost; /* Cost per indirect call. */ unsigned indirect_call_cost; /* Cost per call to a target specific builtin */ unsigned target_builtin_call_cost; /* Cost of "expensive" div and mod operations. */ unsigned div_mod_cost; /* Cost for omp construct. */ unsigned omp_cost; /* Cost for tm transaction. */ unsigned tm_cost; /* Cost of return. */ unsigned return_cost; /* True when time of statemnt should be estimated. Thus i.e cost of switch statement is logarithmic rather than linear in number of cases. */ bool time_based; } eni_weights; /* Weights that estimate_num_insns uses for heuristics in inlining. */ extern eni_weights eni_inlining_weights; /* Weights that estimate_num_insns uses to estimate the size of the produced code. */ extern eni_weights eni_size_weights; /* Weights that estimate_num_insns uses to estimate the time necessary to execute the produced code. */ extern eni_weights eni_time_weights; /* Function prototypes. */ extern tree copy_tree_body_r (tree *, int *, void *); extern void insert_decl_map (copy_body_data *, tree, tree); unsigned int optimize_inline_calls (tree); tree maybe_inline_call_in_expr (tree); bool tree_inlinable_function_p (tree); tree copy_tree_r (tree *, int *, void *); tree copy_decl_no_change (tree decl, copy_body_data *id); int estimate_move_cost (tree type); int estimate_num_insns (gimple, eni_weights *); int estimate_num_insns_fn (tree, eni_weights *); int count_insns_seq (gimple_seq, eni_weights *); bool tree_versionable_function_p (tree); extern tree remap_decl (tree decl, copy_body_data *id); extern tree remap_type (tree type, copy_body_data *id); extern gimple_seq copy_gimple_seq_and_replace_locals (gimple_seq seq); extern HOST_WIDE_INT estimated_stack_frame_size (struct cgraph_node *); #endif /* GCC_TREE_INLINE_H */