490   gimple *def_stmt = SSA_NAME_DEF_STMT (vdef);  in mark_aliased_reaching_defs_necessary_1()  local
493   if (! gimple_clobber_p (def_stmt))  in mark_aliased_reaching_defs_necessary_1()
497   if (gimple_has_lhs (def_stmt)  in mark_aliased_reaching_defs_necessary_1()
498       && TREE_CODE (gimple_get_lhs (def_stmt)) != SSA_NAME  in mark_aliased_reaching_defs_necessary_1()
505       && !stmt_can_throw_internal (cfun, def_stmt))  in mark_aliased_reaching_defs_necessary_1()
507       tree base, lhs = gimple_get_lhs (def_stmt);  in mark_aliased_reaching_defs_necessary_1()
532 		   && (basic_block) data != gimple_bb (def_stmt)  in mark_aliased_reaching_defs_necessary_1()
534 				      gimple_bb (def_stmt))  in mark_aliased_reaching_defs_necessary_1()
573   gimple *def_stmt = SSA_NAME_DEF_STMT (vdef);  in mark_all_reaching_defs_necessary_1()  local
580       gcc_assert (gimple_nop_p (def_stmt)  in mark_all_reaching_defs_necessary_1()
581 		  || gimple_plf (def_stmt, STMT_NECESSARY));  in mark_all_reaching_defs_necessary_1()
587       && gimple_assign_single_p (def_stmt))  in mark_all_reaching_defs_necessary_1()
589       tree lhs = gimple_assign_lhs (def_stmt);  in mark_all_reaching_defs_necessary_1()
596   if (is_gimple_call (def_stmt))  in mark_all_reaching_defs_necessary_1()
598       tree callee = gimple_call_fndecl (def_stmt);  in mark_all_reaching_defs_necessary_1()
619   if (! gimple_clobber_p (def_stmt))  in mark_all_reaching_defs_necessary_1()
883 	      gimple *def_stmt;  in propagate_necessity()  local
888 		  && is_gimple_call (def_stmt = SSA_NAME_DEF_STMT (ptr))  in propagate_necessity()
889 		  && (def_callee = gimple_call_fndecl (def_stmt))  in propagate_necessity()
898 		      if (!valid_new_delete_pair_p (def_stmt, stmt))  in propagate_necessity()
1405 		  gimple *def_stmt = SSA_NAME_DEF_STMT (ptr);  in eliminate_unnecessary_stmts()  local
1406 		  if (!gimple_nop_p (def_stmt)  in eliminate_unnecessary_stmts()
1407 		      && !gimple_plf (def_stmt, STMT_NECESSARY))  in eliminate_unnecessary_stmts()