straight_line_def_used

Basic def-used implementation for the code inference pass

straight_line_def_needed(EA:address)

On x86, we use this relation to limit from which defs we must propagate straight_line_last_def. This is a yields significant performance and memory improvements.

On other architectures, we do not use this mechanism.

WARNING: Predicate not present in compiled Datalog program (Dead Code)

straight_line_last_def(EA:address, EA_def:address, Reg:register)

The last address where a register was defined within the block

• Uses: arch.conditional, arch.pc_relative_addr, basic_reg_def_use.def, instruction

• Recursive: block_points_proportional, next_type, reg_def_use.live_var_at_prior_used, relative_address, composite_data_access, block_limit, __agg_single2, no_return_call, __agg_subclause2, block_candidate_boundaries, instruction_memory_access_size, data_in_code, indexed_pc_relative_load, data_access, arm_jump_table_data_block, impossible_block, block_instruction_next, candidate_block_is_not_padding, invalid_jump_table_candidate, jump_table_target, function_inference.function_entry_initial, split_load_candidate, self_contained_segment, initialized_data_segment, base_relative_jump, split_load_point, __agg_single3, padding_block_limit, reg_reg_arithmetic_operation_defs, branch_to_calculated_pc_rel_addr, tls_desc_call, block_points, stack_base_reg_move, overlapping_instruction, wis_memo, stack_def_use.ref_in_block, __agg_subclause4, wis_schedule, simple_data_access_pattern, relative_address_start, compare_and_jump_indirect, reg_def_use.defined_in_block, jump_table_max, reg_def_use.ambiguous_last_def_in_block, value_reg_limit, stack_def_use.block_last_def, data_block_candidate, stack_def_use.def_used, reg_def_use.used_in_block, plt_block, data_block_limit, jump_table_element_access, data_segment, jump_table_candidate, split_load_operand, block_next, litpool_boundaries, invalid, jump_table_candidate_refined, arm_jump_table_cmp_limit, stack_def_use.live_var_used_in_block, litpool_confidence, segment_target_range, indexed_pc_relative_load_relative, block_overlap, negative_block_heuristic, jump_table_prelude, stack_def_use.used_in_block, reg_def_use.live_var_at_block_end, no_return_call_propagated, reg_def_use.return_val_used, data_in_code_propagate, straight_line_last_def, candidate_block_is_padding, base_relative_operation, arch.reg_relative_load, arm_jump_table_candidate, next_block_in_byte_interval, may_fallthrough, reg_def_use.ambiguous_block_last_def, __agg_single10, no_value_reg_limit, discarded_block, common_tail, unresolved_interval, block_boundaries, straight_line_def_used, inter_procedural_edge, relocation_adjustment_total, code_in_block_candidate_refined, const_value_reg_used, indefinite_litpool_ref, reg_def_use.flow_def, plt_entry, def_used_for_address, first_block_in_byte_interval, split_load_total_points, resolved_reaches, possible_target, reg_def_use.live_var_def, possible_target_from, reg_used_for, compare_and_jump_indirect_op_valid, __agg_single6, split_load, no_return_block, unresolved_block, reg_def_use.block_last_def, relative_jump_table_entry_candidate, __agg_subclause6, litpool_symbolic_operand, next_end, unresolved_interval_order, compare_and_jump_register, stack_def_use.live_var_at_prior_used, call_tls_get_addr, nop_in_padding_candidate, known_block, is_padding, likely_fallthrough, tls_get_addr, local_dynamic_tls_candidate, correlated_live_reg, value_reg_unsupported, code_in_block, arch.simple_data_load, overlap_with_litpool, padding_block_candidate, base_relative_operand, symbolic_expr_from_relocation, reg_def_use.last_def_in_block, reg_has_base_image, arm_jump_table_skip_first_entry, init_symbol_minus_symbol_candidate_arm, block, no_return_call_refined, tls_relative_operand_mips, discarded_split_load, reg_def_use.used, cmp_reg_to_reg, relocation_adjustment, unlikely_have_symbolic_immediate, reg_def_use.live_var_used, cmp_defines, jump_table_start, reg_def_use.def_used, wis_prior, call_tls_get_addr_mips, __agg_subclause3, start_function, stack_def_use.defined_in_block, contains_plausible_instr_seq, reg_def_use.return_block_end, next_start, inferred_main_dispatch, last_value_reg_limit, arm_jump_table_block_instruction, compare_and_jump_immediate, __agg_subclause7, gp_relative_operand, litpool_ref, wis_has_prior, contains_implausible_instr_seq, after_end, init_ldr_add_pc, unresolved_block_overlap, code_in_block_candidate, block_candidate_dependency_edge, split_load_conflict, reg_def_use.ref_in_block, inferred_main_in_reg, arch.extend_load, arm_jump_table_data_block_limit, reg_has_got, wis_schedule_iter, cinf_ldr_add_pc, arm_jump_table_block_start, flags_and_jump_pair, hi_load_prop, arm_jump_table_candidate_start, block_implies_block, symbol_minus_symbol_litpool_access_pattern, adrp_used, block_total_points, stack_def_use.live_var_at_block_end, stack_def_use.live_var_used, block_last_instruction, stack_def_use.last_def_in_block, got_relative_operand, incomplete_block, basic_target, transition_block_limit, block_heuristic, adjusts_stack_in_block, must_fallthrough, value_reg, jump_table_signed, value_reg_edge, split_load_for_symbolization, stack_def_use.live_var_def

straight_line_def_used(EA_def:address, Reg:register, EA_used:address, Index:unsigned)

straight_line_def_used is a weaker version than reg_def_use.def_used that can be used in the code inference pass.

• Uses: basic_reg_def_use.used

• Recursive: block_points_proportional, next_type, reg_def_use.live_var_at_prior_used, relative_address, composite_data_access, block_limit, __agg_single2, no_return_call, __agg_subclause2, block_candidate_boundaries, instruction_memory_access_size, data_in_code, indexed_pc_relative_load, data_access, arm_jump_table_data_block, impossible_block, block_instruction_next, candidate_block_is_not_padding, invalid_jump_table_candidate, jump_table_target, function_inference.function_entry_initial, split_load_candidate, self_contained_segment, initialized_data_segment, base_relative_jump, split_load_point, __agg_single3, padding_block_limit, reg_reg_arithmetic_operation_defs, branch_to_calculated_pc_rel_addr, tls_desc_call, block_points, stack_base_reg_move, overlapping_instruction, wis_memo, stack_def_use.ref_in_block, __agg_subclause4, wis_schedule, simple_data_access_pattern, relative_address_start, compare_and_jump_indirect, reg_def_use.defined_in_block, jump_table_max, reg_def_use.ambiguous_last_def_in_block, value_reg_limit, stack_def_use.block_last_def, data_block_candidate, stack_def_use.def_used, reg_def_use.used_in_block, plt_block, data_block_limit, jump_table_element_access, data_segment, jump_table_candidate, split_load_operand, block_next, litpool_boundaries, invalid, jump_table_candidate_refined, arm_jump_table_cmp_limit, stack_def_use.live_var_used_in_block, litpool_confidence, segment_target_range, indexed_pc_relative_load_relative, block_overlap, negative_block_heuristic, jump_table_prelude, stack_def_use.used_in_block, reg_def_use.live_var_at_block_end, no_return_call_propagated, reg_def_use.return_val_used, data_in_code_propagate, straight_line_last_def, candidate_block_is_padding, base_relative_operation, arch.reg_relative_load, arm_jump_table_candidate, next_block_in_byte_interval, may_fallthrough, reg_def_use.ambiguous_block_last_def, __agg_single10, no_value_reg_limit, discarded_block, common_tail, unresolved_interval, block_boundaries, straight_line_def_used, inter_procedural_edge, relocation_adjustment_total, code_in_block_candidate_refined, const_value_reg_used, indefinite_litpool_ref, reg_def_use.flow_def, plt_entry, def_used_for_address, first_block_in_byte_interval, split_load_total_points, resolved_reaches, possible_target, reg_def_use.live_var_def, possible_target_from, reg_used_for, compare_and_jump_indirect_op_valid, __agg_single6, split_load, no_return_block, unresolved_block, reg_def_use.block_last_def, relative_jump_table_entry_candidate, __agg_subclause6, litpool_symbolic_operand, next_end, unresolved_interval_order, compare_and_jump_register, stack_def_use.live_var_at_prior_used, call_tls_get_addr, nop_in_padding_candidate, known_block, is_padding, likely_fallthrough, tls_get_addr, local_dynamic_tls_candidate, correlated_live_reg, value_reg_unsupported, code_in_block, arch.simple_data_load, overlap_with_litpool, padding_block_candidate, base_relative_operand, symbolic_expr_from_relocation, reg_def_use.last_def_in_block, reg_has_base_image, arm_jump_table_skip_first_entry, init_symbol_minus_symbol_candidate_arm, block, no_return_call_refined, tls_relative_operand_mips, discarded_split_load, reg_def_use.used, cmp_reg_to_reg, relocation_adjustment, unlikely_have_symbolic_immediate, reg_def_use.live_var_used, cmp_defines, jump_table_start, reg_def_use.def_used, wis_prior, call_tls_get_addr_mips, __agg_subclause3, start_function, stack_def_use.defined_in_block, contains_plausible_instr_seq, reg_def_use.return_block_end, next_start, inferred_main_dispatch, last_value_reg_limit, arm_jump_table_block_instruction, compare_and_jump_immediate, __agg_subclause7, gp_relative_operand, litpool_ref, wis_has_prior, contains_implausible_instr_seq, after_end, init_ldr_add_pc, unresolved_block_overlap, code_in_block_candidate, block_candidate_dependency_edge, split_load_conflict, reg_def_use.ref_in_block, inferred_main_in_reg, arch.extend_load, arm_jump_table_data_block_limit, reg_has_got, wis_schedule_iter, cinf_ldr_add_pc, arm_jump_table_block_start, flags_and_jump_pair, hi_load_prop, arm_jump_table_candidate_start, block_implies_block, symbol_minus_symbol_litpool_access_pattern, adrp_used, block_total_points, stack_def_use.live_var_at_block_end, stack_def_use.live_var_used, block_last_instruction, stack_def_use.last_def_in_block, got_relative_operand, incomplete_block, basic_target, transition_block_limit, block_heuristic, adjusts_stack_in_block, must_fallthrough, value_reg, jump_table_signed, value_reg_edge, split_load_for_symbolization, stack_def_use.live_var_def