#include <ipa-param-manipulation.h>
Public Member Functions | |
| ipa_param_adjustments (vec< ipa_adjusted_param, va_gc > *new_params, int always_copy_start, bool skip_return) | |
| gcall * | modify_call (cgraph_edge *cs, bool update_references, hash_set< tree > *killed_ssas) |
| bool | first_param_intact_p () |
| tree | build_new_function_type (tree old_type, bool type_is_original_p) |
| tree | adjust_decl (tree orig_decl) |
| void | get_surviving_params (vec< bool > *surviving_params) |
| void | get_updated_indices (vec< int > *new_indices) |
| int | get_original_index (int newidx) |
| void | dump (FILE *f) |
| void | debug () |
Static Public Member Functions | |
| static bool | type_attribute_allowed_p (tree) |
Data Fields | |
| vec< ipa_adjusted_param, va_gc > * | m_adj_params |
| int | m_always_copy_start |
| bool | m_skip_return |
Private Member Functions | |
| ipa_param_adjustments () | |
| void | init (vec< tree > *cur_params) |
| int | get_max_base_index () |
| bool | method2func_p (tree orig_type) |
Detailed Description
Class used to record planned modifications to parameters of a function and also to perform necessary modifications at the caller side at the gimple level. Used to describe all cgraph node clones that have their parameters changed, therefore the class should only have a small memory footprint.
Constructor & Destructor Documentation
◆ ipa_param_adjustments() [1/2]
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inline |
◆ ipa_param_adjustments() [2/2]
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inlineprivate |
Member Function Documentation
◆ adjust_decl()
Build variant of function decl ORIG_DECL which has no return value if M_SKIP_RETURN is true and, if ORIG_DECL's types or parameters is known, has this type adjusted as indicated in M_ADJ_PARAMS. Arguments from DECL_ARGUMENTS list are not processed now, since they are linked by TREE_CHAIN directly and not accessible in LTO during WPA. The caller is responsible for eliminating them when clones are properly materialized.
References build_new_function_type(), copy_node(), DECL_IS_MALLOC, DECL_LANG_SPECIFIC, DECL_VINDEX, DECL_VIRTUAL_P, fndecl_built_in_p(), m_skip_return, method2func_p(), NOT_BUILT_IN, NULL, NULL_TREE, prototype_p(), set_decl_built_in_function(), TREE_TYPE, and VOID_TYPE_P.
Referenced by cgraph_node::create_version_clone_with_body(), and cgraph_node::create_virtual_clone().
◆ build_new_function_type()
Given function type OLD_TYPE, return a new type derived from it after performing all atored modifications. TYPE_ORIGINAL_P should be true when OLD_TYPE refers to the type before any IPA transformations, as opposed to a type that can be an intermediate one in between various IPA transformations.
References build_adjusted_function_type(), fill_vector_of_new_param_types(), get_original_index(), m_adj_params, m_always_copy_start, m_skip_return, method2func_p(), NULL, prototype_p(), push_function_arg_types(), TREE_CHAIN, and TYPE_ARG_TYPES.
Referenced by adjust_decl().
◆ debug()
| void ipa_param_adjustments::debug | ( | ) |
Dump information contained in the object in textual form to stderr.
References dump().
◆ dump()
| void ipa_param_adjustments::dump | ( | FILE * | f | ) |
Dump information contained in the object in textual form to F.
References ipa_dump_adjusted_parameters(), m_adj_params, m_always_copy_start, and m_skip_return.
Referenced by debug(), cgraph_node::materialize_clone(), and cgraph_edge::redirect_call_stmt_to_callee().
◆ first_param_intact_p()
| bool ipa_param_adjustments::first_param_intact_p | ( | ) |
Return true if the first parameter (assuming there was one) survives the transformation intact and remains the first one.
References IPA_PARAM_OP_COPY, m_adj_params, and vec_safe_is_empty().
Referenced by clone_of_p(), duplicate_thunk_for_node(), and method2func_p().
◆ get_max_base_index()
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private |
Return the maximum index in any IPA_PARAM_OP_COPY adjustment or -1 if there is none.
References ipa_adjusted_param::base_index, i, IPA_PARAM_OP_COPY, m_adj_params, ipa_adjusted_param::op, and vec_safe_length().
Referenced by get_surviving_params(), and get_updated_indices().
◆ get_original_index()
| int ipa_param_adjustments::get_original_index | ( | int | newidx | ) |
Return the original index for the given new parameter index. Return a negative number if not available.
References ipa_adjusted_param::base_index, IPA_PARAM_OP_COPY, and ipa_adjusted_param::op.
Referenced by build_new_function_type(), and ipcp_get_parm_bits().
◆ get_surviving_params()
Fill SURVIVING_PARAMS with an array of bools where each one says whether a parameter that originally was at that position still survives in the given clone or is removed/replaced. If the final array is smaller than an index of an original parameter, that parameter also did not survive. That a parameter survives does not mean it has the same index as before.
References ipa_adjusted_param::base_index, get_max_base_index(), i, IPA_PARAM_OP_COPY, m_adj_params, ipa_adjusted_param::op, and vec_safe_length().
Referenced by initialize_node_lattices(), and want_remove_some_param_p().
◆ get_updated_indices()
| void ipa_param_adjustments::get_updated_indices | ( | vec< int > * | new_indices | ) |
Fill NEW_INDICES with new indices of each surviving parameter or -1 for those which do not survive. Any parameter outside of lenght of the vector does not survive. There is currently no support for a parameter to be copied to two distinct new parameters.
References ipa_adjusted_param::base_index, get_max_base_index(), i, IPA_PARAM_OP_COPY, m_adj_params, ipa_adjusted_param::op, and vec_safe_length().
Referenced by adjust_agg_replacement_values(), ipa_param_body_adjustments::common_initialization(), ipcp_update_vr(), and tree_function_versioning().
◆ init()
◆ method2func_p()
Return true if we have to change what has formerly been a method into a function.
References first_param_intact_p(), and TREE_CODE.
Referenced by adjust_decl(), and build_new_function_type().
◆ modify_call()
| gcall * ipa_param_adjustments::modify_call | ( | cgraph_edge * | cs, |
| bool | update_references, | ||
| hash_set< tree > * | killed_ssas ) |
Modify actual arguments of a function call in statement currently belonging to CS, and make it call CS->callee->decl. Return the new statement that replaced the old one. When invoked, cfun and current_function_decl have to be set to the caller. When called from within tree-inline, KILLED_SSAs has to contain the pointer to killed_new_ssa_names within the copy_body_data structure and SSAs discovered to be useless (if LHS is removed) will be added to it, otherwise it needs to be NULL.
References hash_set< KeyId, Lazy, Traits >::add(), ipa_adjusted_param::alias_ptr_type, ipa_edge_modification_info::always_copy_delta, ipa_adjusted_param::base_index, build_aligned_type(), build_debug_expr_decl(), build_fold_addr_expr, build_int_cst(), cgraph_edge::call_stmt, cgraph_edge::callee, cfun, cgraph_node::clone_of, create_tmp_reg(), current_function_decl, symtab_node::decl, DECL_ARGUMENTS, DECL_CHAIN, decl_debug_args_insert(), DECL_MODE, DECL_ORIGIN, dump_file, symbol_table::dump_file, dump_flags, fold_build2_loc(), fold_convert_loc(), fold_convertible_p(), force_gimple_operand_gsi(), force_value_to_type(), gcc_assert, cgraph_node::get(), get_addr_base_and_unit_offset(), get_pointer_alignment_1(), cgraph_node::get_untransformed_body(), gimple_assign_cast_p(), gimple_assign_rhs1(), gimple_assign_set_lhs(), gimple_block(), gimple_build_assign(), gimple_build_call_vec(), gimple_build_debug_bind(), gimple_call_arg(), gimple_call_chain(), gimple_call_copy_flags(), gimple_call_fndecl(), gimple_call_lhs(), gimple_call_num_args(), gimple_call_set_chain(), gimple_call_set_lhs(), gimple_has_location(), gimple_in_ssa_p(), gimple_location(), gimple_move_vops(), gimple_set_block(), gimple_set_location(), gimple_set_vuse(), gimple_vuse(), gsi_for_stmt(), gsi_insert_before(), gsi_prev(), gsi_replace(), GSI_SAME_STMT, gsi_stmt(), i, ipa_edge_modification_info::index_map, int_const_binop(), ipa_edge_modifications, IPA_PARAM_OP_COPY, IPA_PARAM_OP_SPLIT, ipa_release_ssas_in_hash(), is_gimple_reg(), is_gimple_reg_type(), least_bit_hwi(), m_adj_params, m_always_copy_start, m_skip_return, make_ssa_name(), MAY_HAVE_DEBUG_BIND_STMTS, NULL, NULL_TREE, ipa_adjusted_param::op, ipa_edge_modification_info::pass_through_map, POINTER_TYPE_P, print_gimple_stmt(), ptr_type_node, purge_all_uses(), cgraph_node::record_stmt_references(), REF_REVERSE_STORAGE_ORDER, symtab_node::remove_stmt_references(), ipa_adjusted_param::reverse, SET_DECL_MODE, SIGNED, SSA_NAME_DEF_STMT, symtab, TDF_DETAILS, wi::to_wide(), TREE_CODE, TREE_OPERAND, TREE_TYPE, ipa_adjusted_param::type, TYPE_ALIGN, ipa_adjusted_param::unit_offset, unshare_expr(), useless_type_conversion_p(), vec_safe_iterate(), vec_safe_length(), and vec_safe_push().
◆ type_attribute_allowed_p()
Return false if given attribute should prevent type adjustments.
References is_attribute_p().
Referenced by compute_fn_summary().
Field Documentation
◆ m_adj_params
| vec<ipa_adjusted_param, va_gc>* ipa_param_adjustments::m_adj_params |
◆ m_always_copy_start
| int ipa_param_adjustments::m_always_copy_start |
Referenced by build_new_function_type(), create_specialized_node(), dump(), initialize_node_lattices(), and modify_call().
◆ m_skip_return
| bool ipa_param_adjustments::m_skip_return |
Referenced by adjust_decl(), build_new_function_type(), create_specialized_node(), dump(), ipa_param_body_adjustments::mark_clobbers_dead(), ipa_param_body_adjustments::mark_dead_statements(), modify_call(), ipa_param_body_adjustments::modify_formal_parameters(), ipa_param_body_adjustments::modify_gimple_stmt(), output_node_opt_summary(), and tree_function_versioning().
The documentation for this class was generated from the following files:
