#include "config.h"#include "system.h"#include "coretypes.h"#include "backend.h"#include "tree.h"#include "stringpool.h"#include "gimple.h"#include "diagnostic-core.h"#include "gimple-ssa.h"#include "cgraph.h"#include "tree-pass.h"#include "target.h"#include "attribs.h"#include "pretty-print.h"#include "gimple-iterator.h"#include "gimple-walk.h"#include "tree-inline.h"#include "intl.h"
Functions | |
| static tree | replace_function_decl (tree *op, int *walk_subtrees, void *data) |
| static void | create_dispatcher_calls (struct cgraph_node *node) |
| static int | get_attr_str (tree arglist, char *attr_str) |
| static int | separate_attrs (char *attr_str, char **attrs, int attrnum) |
| static bool | is_valid_asm_symbol (char c) |
| static void | create_new_asm_name (char *old_asm_name, char *new_asm_name) |
| static cgraph_node * | create_target_clone (cgraph_node *node, bool definition, char *name, tree attributes) |
| static bool | expand_target_clones (struct cgraph_node *node, bool definition) |
| static void | redirect_to_specific_clone (cgraph_node *node) |
| static unsigned int | ipa_target_clone (void) |
| simple_ipa_opt_pass * | make_pass_target_clone (gcc::context *ctxt) |
Function Documentation
◆ create_dispatcher_calls()
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If the call in NODE has multiple target attribute with multiple fields, replace it with dispatcher call and create dispatcher (once).
References symtab_node::add_to_same_comdat_group(), symtab_node::alias, symtab_node::alias_target, symtab_node::analyzed, cgraph_node::callers, symbol_table::change_decl_assembler_name(), clone_function_name(), symtab_node::create_reference(), symtab_node::decl, DECL_ARTIFICIAL, DECL_INITIAL, DECL_SOURCE_LOCATION, symtab_node::definition, dyn_cast(), error_at(), symtab_node::externally_visible, FOR_EACH_VEC_ELT, symtab_node::force_output, symtab_node::forced_by_abi, cgraph_node::function_version(), gcc_assert, gcc_unreachable, cgraph_node::get(), symtab_node::get_comdat_group(), gsi_for_stmt(), i, IPA_REF_ADDR, IPA_REF_ALIAS, symtab_node::iterate_referring(), symtab_node::make_decl_local(), cgraph_edge::next_caller, NULL, cgraph_edge::redirect_call_stmt_to_callee(), cgraph_edge::redirect_callee(), ipa_ref::referring, ipa_ref::remove_reference(), replace_function_decl(), symtab_node::resolve_alias(), symtab_node::set_comdat_group(), symtab_node::set_section(), ipa_ref::stmt, symtab, targetm, ipa_ref::use, walk_gimple_stmt(), and walk_tree.
Referenced by ipa_target_clone().
◆ create_new_asm_name()
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Replace all not valid assembler symbols with '_'.
References i, and is_valid_asm_symbol().
Referenced by expand_target_clones().
◆ create_target_clone()
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Creates target clone of NODE.
References symbol_table::change_decl_assembler_name(), clone_function_name(), copy_node(), cgraph_node::create_version_clone_with_body(), symtab_node::decl, DECL_ATTRIBUTES, symtab_node::force_output, cgraph_node::get_create(), NULL, symtab, and vNULL.
Referenced by expand_target_clones().
◆ expand_target_clones()
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If the function in NODE has multiple target attributes create the appropriate clone for each valid target attribute.
References symtab_node::alias, copy_forbidden(), create_new_asm_name(), create_target_clone(), symtab_node::decl, DECL_ATTRIBUTES, DECL_FUNCTION_VERSIONED, DECL_SOURCE_LOCATION, DECL_STRUCT_FUNCTION, symtab_node::definition, error_at(), cgraph_node::function_version(), G_, get_attr_str(), get_target_clone_attr_len(), i, inform(), cgraph_node::insert_new_function_version(), cgraph_node::local, lookup_attribute(), make_attribute(), cgraph_function_version_info::next, NULL, cgraph_function_version_info::prev, separate_attrs(), TARGET_HAS_FMV_TARGET_ATTRIBUTE, TREE_VALUE, tree_versionable_function_p(), and warning_at().
Referenced by ipa_target_clone().
◆ get_attr_str()
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Create string with attributes separated by TARGET_CLONES_ATTR_SEPARATOR. Return number of attributes.
References TARGET_CLONES_ATTR_SEPARATOR, TREE_CHAIN, TREE_STRING_POINTER, and TREE_VALUE.
Referenced by expand_target_clones().
◆ ipa_target_clone()
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◆ is_valid_asm_symbol()
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Return true if symbol is valid in assembler name.
Referenced by create_new_asm_name().
◆ make_pass_target_clone()
| simple_ipa_opt_pass * make_pass_target_clone | ( | gcc::context * | ctxt | ) |
◆ redirect_to_specific_clone()
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static |
When NODE is a target clone, consider all callees and redirect to a clone with equal target attributes. That prevents multiple multi-versioning dispatches and a call-chain can be optimized.
References attribute_value_equal(), cgraph_node::callees, symtab_node::decl, DECL_ATTRIBUTES, cgraph_node::function_version(), lookup_attribute(), cgraph_function_version_info::next, cgraph_edge::next_callee, NULL, NULL_TREE, cgraph_function_version_info::prev, cgraph_edge::redirect_call_stmt_to_callee(), and cgraph_function_version_info::this_node.
Referenced by ipa_target_clone().
◆ replace_function_decl()
Pass for parsing functions with multiple target attributes. Contributed by Evgeny Stupachenko <evstupac@gmail.com> Copyright (C) 2015-2024 Free Software Foundation, Inc. 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/>.
Walker callback that replaces all FUNCTION_DECL of a function that's going to be versioned.
References walk_stmt_info::info, NULL, and TREE_CODE.
Referenced by create_dispatcher_calls().
◆ separate_attrs()
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Return number of attributes separated by TARGET_CLONES_ATTR_SEPARATOR and put them into ARGS. If there is no DEFAULT attribute return -1. If there is an empty string in attribute return -2. If there are multiple DEFAULT attributes return -3.
References i, NULL, and TARGET_CLONES_ATTR_SEPARATOR.
Referenced by expand_target_clones().
