/* Tree inlining hooks and declarations.
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/* Tree inlining hooks and declarations.
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Copyright 2001, 2003, 2004, 2005, 2007, 2008, 2009
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Copyright 2001, 2003, 2004, 2005, 2007, 2008, 2009
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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Contributed by Alexandre Oliva <aoliva@redhat.com>
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Contributed by Alexandre Oliva <aoliva@redhat.com>
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This file is part of GCC.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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any later version.
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GCC is distributed in the hope that it will be useful,
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_TREE_INLINE_H
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#ifndef GCC_TREE_INLINE_H
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#define GCC_TREE_INLINE_H
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#define GCC_TREE_INLINE_H
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#include "gimple.h"
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#include "gimple.h"
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struct cgraph_edge;
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struct cgraph_edge;
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/* Indicate the desired behavior wrt call graph edges. We can either
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/* Indicate the desired behavior wrt call graph edges. We can either
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duplicate the edge (inlining, cloning), move the edge (versioning,
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duplicate the edge (inlining, cloning), move the edge (versioning,
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parallelization), or move the edges of the clones (saving). */
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parallelization), or move the edges of the clones (saving). */
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enum copy_body_cge_which
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enum copy_body_cge_which
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{
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{
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CB_CGE_DUPLICATE,
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CB_CGE_DUPLICATE,
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CB_CGE_MOVE,
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CB_CGE_MOVE,
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CB_CGE_MOVE_CLONES
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CB_CGE_MOVE_CLONES
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};
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};
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/* Data required for function body duplication. */
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/* Data required for function body duplication. */
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typedef struct copy_body_data
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typedef struct copy_body_data
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{
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{
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/* FUNCTION_DECL for function being inlined, or in general the
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/* FUNCTION_DECL for function being inlined, or in general the
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source function providing the original trees. */
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source function providing the original trees. */
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tree src_fn;
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tree src_fn;
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/* FUNCTION_DECL for function being inlined into, or in general
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/* FUNCTION_DECL for function being inlined into, or in general
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the destination function receiving the new trees. */
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the destination function receiving the new trees. */
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tree dst_fn;
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tree dst_fn;
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/* Callgraph node of the source function. */
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/* Callgraph node of the source function. */
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struct cgraph_node *src_node;
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struct cgraph_node *src_node;
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/* Callgraph node of the destination function. */
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/* Callgraph node of the destination function. */
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struct cgraph_node *dst_node;
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struct cgraph_node *dst_node;
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/* struct function for function being inlined. Usually this is the same
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/* struct function for function being inlined. Usually this is the same
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as DECL_STRUCT_FUNCTION (src_fn), but can be different if saved_cfg
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as DECL_STRUCT_FUNCTION (src_fn), but can be different if saved_cfg
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and saved_eh are in use. */
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and saved_eh are in use. */
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struct function *src_cfun;
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struct function *src_cfun;
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/* The VAR_DECL for the return value. */
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/* The VAR_DECL for the return value. */
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tree retvar;
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tree retvar;
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/* The map from local declarations in the inlined function to
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/* The map from local declarations in the inlined function to
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equivalents in the function into which it is being inlined. */
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equivalents in the function into which it is being inlined. */
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struct pointer_map_t *decl_map;
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struct pointer_map_t *decl_map;
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/* Create a new decl to replace DECL in the destination function. */
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/* Create a new decl to replace DECL in the destination function. */
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tree (*copy_decl) (tree, struct copy_body_data *);
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tree (*copy_decl) (tree, struct copy_body_data *);
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/* Current BLOCK. */
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/* Current BLOCK. */
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tree block;
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tree block;
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/* GIMPLE_CALL if va arg parameter packs should be expanded or NULL
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/* GIMPLE_CALL if va arg parameter packs should be expanded or NULL
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is not. */
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is not. */
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gimple gimple_call;
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gimple gimple_call;
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/* Exception landing pad the inlined call lies in. */
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/* Exception landing pad the inlined call lies in. */
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int eh_lp_nr;
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int eh_lp_nr;
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/* Maps region and landing pad structures from the function being copied
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/* Maps region and landing pad structures from the function being copied
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to duplicates created within the function we inline into. */
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to duplicates created within the function we inline into. */
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struct pointer_map_t *eh_map;
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struct pointer_map_t *eh_map;
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/* We use the same mechanism do all sorts of different things. Rather
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/* We use the same mechanism do all sorts of different things. Rather
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than enumerating the different cases, we categorize the behavior
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than enumerating the different cases, we categorize the behavior
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in the various situations. */
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in the various situations. */
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/* What to do with call graph edges. */
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/* What to do with call graph edges. */
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enum copy_body_cge_which transform_call_graph_edges;
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enum copy_body_cge_which transform_call_graph_edges;
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/* True if a new CFG should be created. False for inlining, true for
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/* True if a new CFG should be created. False for inlining, true for
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everything else. */
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everything else. */
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bool transform_new_cfg;
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bool transform_new_cfg;
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/* True if RETURN_EXPRs should be transformed to just the contained
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/* True if RETURN_EXPRs should be transformed to just the contained
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MODIFY_EXPR. The branch semantics of the return will be handled
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MODIFY_EXPR. The branch semantics of the return will be handled
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by manipulating the CFG rather than a statement. */
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by manipulating the CFG rather than a statement. */
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bool transform_return_to_modify;
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bool transform_return_to_modify;
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/* True if this statement will need to be regimplified. */
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/* True if this statement will need to be regimplified. */
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bool regimplify;
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bool regimplify;
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/* True if trees should not be unshared. */
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/* True if trees should not be unshared. */
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bool do_not_unshare;
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bool do_not_unshare;
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/* > 0 if we are remapping a type currently. */
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/* > 0 if we are remapping a type currently. */
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int remapping_type_depth;
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int remapping_type_depth;
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/* A function to be called when duplicating BLOCK nodes. */
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/* A function to be called when duplicating BLOCK nodes. */
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void (*transform_lang_insert_block) (tree);
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void (*transform_lang_insert_block) (tree);
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/* Statements that might be possibly folded. */
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/* Statements that might be possibly folded. */
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struct pointer_set_t *statements_to_fold;
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struct pointer_set_t *statements_to_fold;
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/* Entry basic block to currently copied body. */
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/* Entry basic block to currently copied body. */
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struct basic_block_def *entry_bb;
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struct basic_block_def *entry_bb;
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/* Debug statements that need processing. */
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/* Debug statements that need processing. */
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VEC(gimple,heap) *debug_stmts;
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VEC(gimple,heap) *debug_stmts;
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/* A map from local declarations in the inlined function to
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/* A map from local declarations in the inlined function to
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equivalents in the function into which it is being inlined, where
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equivalents in the function into which it is being inlined, where
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the originals have been mapped to a value rather than to a
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the originals have been mapped to a value rather than to a
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variable. */
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variable. */
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struct pointer_map_t *debug_map;
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struct pointer_map_t *debug_map;
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} copy_body_data;
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} copy_body_data;
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/* Weights of constructions for estimate_num_insns. */
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/* Weights of constructions for estimate_num_insns. */
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typedef struct eni_weights_d
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typedef struct eni_weights_d
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{
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{
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/* Cost per call. */
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/* Cost per call. */
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unsigned call_cost;
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unsigned call_cost;
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/* Cost per call to a target specific builtin */
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/* Cost per call to a target specific builtin */
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unsigned target_builtin_call_cost;
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unsigned target_builtin_call_cost;
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/* Cost of "expensive" div and mod operations. */
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/* Cost of "expensive" div and mod operations. */
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unsigned div_mod_cost;
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unsigned div_mod_cost;
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/* Cost for omp construct. */
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/* Cost for omp construct. */
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unsigned omp_cost;
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unsigned omp_cost;
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/* True when time of statemnt should be estimated. Thus i.e
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/* True when time of statemnt should be estimated. Thus i.e
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cost of switch statement is logarithmic rather than linear in number
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cost of switch statement is logarithmic rather than linear in number
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of cases. */
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of cases. */
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bool time_based;
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bool time_based;
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} eni_weights;
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} eni_weights;
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/* Weights that estimate_num_insns uses for heuristics in inlining. */
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/* Weights that estimate_num_insns uses for heuristics in inlining. */
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extern eni_weights eni_inlining_weights;
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extern eni_weights eni_inlining_weights;
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/* Weights that estimate_num_insns uses to estimate the size of the
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/* Weights that estimate_num_insns uses to estimate the size of the
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produced code. */
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produced code. */
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extern eni_weights eni_size_weights;
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extern eni_weights eni_size_weights;
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/* Weights that estimate_num_insns uses to estimate the time necessary
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/* Weights that estimate_num_insns uses to estimate the time necessary
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to execute the produced code. */
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to execute the produced code. */
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extern eni_weights eni_time_weights;
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extern eni_weights eni_time_weights;
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/* Function prototypes. */
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/* Function prototypes. */
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extern tree copy_tree_body_r (tree *, int *, void *);
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extern tree copy_tree_body_r (tree *, int *, void *);
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extern void insert_decl_map (copy_body_data *, tree, tree);
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extern void insert_decl_map (copy_body_data *, tree, tree);
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unsigned int optimize_inline_calls (tree);
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unsigned int optimize_inline_calls (tree);
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tree maybe_inline_call_in_expr (tree);
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tree maybe_inline_call_in_expr (tree);
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bool tree_inlinable_function_p (tree);
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bool tree_inlinable_function_p (tree);
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tree copy_tree_r (tree *, int *, void *);
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tree copy_tree_r (tree *, int *, void *);
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tree copy_decl_no_change (tree decl, copy_body_data *id);
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tree copy_decl_no_change (tree decl, copy_body_data *id);
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void save_body (tree, tree *, tree *);
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void save_body (tree, tree *, tree *);
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int estimate_move_cost (tree type);
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int estimate_move_cost (tree type);
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int estimate_num_insns (gimple, eni_weights *);
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int estimate_num_insns (gimple, eni_weights *);
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int estimate_num_insns_fn (tree, eni_weights *);
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int estimate_num_insns_fn (tree, eni_weights *);
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int count_insns_seq (gimple_seq, eni_weights *);
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int count_insns_seq (gimple_seq, eni_weights *);
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bool tree_versionable_function_p (tree);
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bool tree_versionable_function_p (tree);
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bool tree_can_inline_p (struct cgraph_edge *e);
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bool tree_can_inline_p (struct cgraph_edge *e);
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extern gimple_seq remap_gimple_seq (gimple_seq, copy_body_data *);
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extern gimple_seq remap_gimple_seq (gimple_seq, copy_body_data *);
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extern tree remap_decl (tree decl, copy_body_data *id);
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extern tree remap_decl (tree decl, copy_body_data *id);
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extern tree remap_type (tree type, copy_body_data *id);
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extern tree remap_type (tree type, copy_body_data *id);
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extern gimple_seq copy_gimple_seq_and_replace_locals (gimple_seq seq);
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extern gimple_seq copy_gimple_seq_and_replace_locals (gimple_seq seq);
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extern HOST_WIDE_INT estimated_stack_frame_size (void);
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extern HOST_WIDE_INT estimated_stack_frame_size (void);
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#endif /* GCC_TREE_INLINE_H */
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#endif /* GCC_TREE_INLINE_H */
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