X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Ftree-inline.h;h=5fb4f638c1d508976095c282475d90de47f821c1;hb=c214098d5f8e06c2fa554f7bf2311cc93321a074;hp=142f5569f58e9bd9261cfebc38dc853a3fe0ebdc;hpb=4ee9c6840ad3fc92a9034343278a1e476ad6872a;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/tree-inline.h b/gcc/tree-inline.h index 142f5569f58..5fb4f638c1d 100644 --- a/gcc/tree-inline.h +++ b/gcc/tree-inline.h @@ -1,12 +1,12 @@ /* Tree inlining hooks and declarations. - Copyright 2001, 2003 Free Software Foundation, Inc. + Copyright 2001, 2003, 2004, 2005, 2007 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 2, or (at your option) +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, @@ -15,28 +15,155 @@ 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 COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ +along with GCC; see the file COPYING3. If not see +. */ #ifndef GCC_TREE_INLINE_H #define GCC_TREE_INLINE_H +#include "varray.h" +#include "pointer-set.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. */ + 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 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 this statement will need to be regimplified. */ + bool regimplify; + + /* > 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; +} copy_body_data; + +/* Weights of constructions for estimate_num_insns. */ + +typedef struct eni_weights_d +{ + /* Cost per call. */ + unsigned 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; +} 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. */ -void optimize_inline_calls (tree); +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); bool tree_inlinable_function_p (tree); -tree copy_tree_r (tree*, int*, void*); -void clone_body (tree, tree, void*); -tree save_body (tree, tree *); -void remap_save_expr (tree*, void*, tree, int*); -int estimate_num_insns (tree expr); - -/* 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; +tree copy_tree_r (tree *, int *, void *); +tree copy_decl_no_change (tree decl, copy_body_data *id); +void save_body (tree, tree *, tree *); +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); +void tree_function_versioning (tree, tree, varray_type, bool, bitmap); +bool tree_can_inline_p (tree, tree); + +extern gimple_seq remap_gimple_seq (gimple_seq, copy_body_data *); +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 (void); #endif /* GCC_TREE_INLINE_H */