1 /* 2 * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef CPU_SPARC_VM_INTERP_MASM_SPARC_HPP 26 #define CPU_SPARC_VM_INTERP_MASM_SPARC_HPP 27 28 #include "asm/macroAssembler.hpp" 29 #include "interpreter/invocationCounter.hpp" 30 31 // This file specializes the assember with interpreter-specific macros 32 33 typedef ByteSize (*OffsetFunction)(uint); 34 35 REGISTER_DECLARATION( Register, Otos_i , O0); // tos for ints, etc 36 REGISTER_DECLARATION( Register, Otos_l , O0); // for longs 37 REGISTER_DECLARATION( Register, Otos_l1, O0); // for 1st part of longs 38 REGISTER_DECLARATION( Register, Otos_l2, O1); // for 2nd part of longs 39 REGISTER_DECLARATION(FloatRegister, Ftos_f , F0); // for floats 40 REGISTER_DECLARATION(FloatRegister, Ftos_d , F0); // for doubles 41 REGISTER_DECLARATION(FloatRegister, Ftos_d1, F0); // for 1st part of double 42 REGISTER_DECLARATION(FloatRegister, Ftos_d2, F1); // for 2nd part of double 43 44 class InterpreterMacroAssembler: public MacroAssembler { 45 protected: 46 // Interpreter specific version of call_VM_base 47 virtual void call_VM_leaf_base( 48 Register java_thread, 49 address entry_point, 50 int number_of_arguments 51 ); 52 53 virtual void call_VM_base( 54 Register oop_result, 55 Register java_thread, 56 Register last_java_sp, 57 address entry_point, 58 int number_of_arguments, 59 bool check_exception=true 60 ); 61 62 // base routine for all dispatches 63 void dispatch_base(TosState state, address* table); 64 65 public: InterpreterMacroAssembler(CodeBuffer * c)66 InterpreterMacroAssembler(CodeBuffer* c) 67 : MacroAssembler(c) {} 68 69 virtual void check_and_handle_popframe(Register scratch_reg); 70 virtual void check_and_handle_earlyret(Register scratch_reg); 71 72 void jump_to_entry(address entry); 73 74 virtual void load_earlyret_value(TosState state); 75 76 static const Address l_tmp ; 77 static const Address d_tmp ; 78 79 // helper routine for frame allocation/deallocation 80 // compute the delta by which the caller's SP has to 81 // be adjusted to accomodate for the non-argument 82 // locals 83 void compute_extra_locals_size_in_bytes(Register args_size, Register locals_size, Register delta); 84 85 // dispatch routines 86 void dispatch_prolog(TosState state, int step = 0); 87 void dispatch_epilog(TosState state, int step = 0); 88 void dispatch_only(TosState state); 89 void dispatch_normal(TosState state); 90 void dispatch_next(TosState state, int step = 0, bool generate_poll = false); 91 void dispatch_next_noverify_oop(TosState state, int step = 0); 92 void dispatch_via (TosState state, address* table); 93 94 95 void narrow(Register result); 96 97 // Removes the current activation (incl. unlocking of monitors). 98 // Additionally this code is used for earlyReturn in which case we 99 // want to skip throwing an exception and installing an exception. 100 void remove_activation(TosState state, 101 bool throw_monitor_exception = true, 102 bool install_monitor_exception = true); 103 104 protected: 105 void dispatch_Lbyte_code(TosState state, address* table, int bcp_incr = 0, bool verify = true, bool generate_poll = false); 106 107 public: 108 // Super call_VM calls - correspond to MacroAssembler::call_VM(_leaf) calls 109 void super_call_VM(Register thread_cache, 110 Register oop_result, 111 Register last_java_sp, 112 address entry_point, 113 Register arg_1, 114 Register arg_2, 115 bool check_exception = true); 116 117 void super_call_VM_leaf(Register thread_cache, address entry_point, Register arg_1, Register arg_2); 118 119 // Generate a subtype check: branch to ok_is_subtype if sub_klass is 120 // a subtype of super_klass. Blows registers tmp1, tmp2 and tmp3. 121 void gen_subtype_check( Register sub_klass, Register super_klass, Register tmp1, Register tmp2, Register tmp3, Label &ok_is_subtype ); 122 123 // helpers for tossing exceptions 124 void throw_if_not_1_icc( Condition ok_condition, Label& ok ); 125 void throw_if_not_1_xcc( Condition ok_condition, Label& ok ); 126 void throw_if_not_1_x ( Condition ok_condition, Label& ok ); // chooses icc or xcc based on _LP64 127 128 void throw_if_not_2( address throw_entry_point, Register Rscratch, Label& ok); 129 130 void throw_if_not_icc( Condition ok_condition, address throw_entry_point, Register Rscratch ); 131 void throw_if_not_xcc( Condition ok_condition, address throw_entry_point, Register Rscratch ); 132 void throw_if_not_x ( Condition ok_condition, address throw_entry_point, Register Rscratch ); 133 134 // helpers for expression stack 135 136 void pop_i( Register r = Otos_i); 137 void pop_ptr( Register r = Otos_i, Register scratch = O4); 138 void pop_l( Register r = Otos_l1); 139 // G4_scratch and Lscratch are used at call sites!! 140 void pop_f(FloatRegister f = Ftos_f, Register scratch = G1_scratch); 141 void pop_d(FloatRegister f = Ftos_d1, Register scratch = G1_scratch); 142 143 void push_i( Register r = Otos_i); 144 void push_ptr( Register r = Otos_i); 145 void push_l( Register r = Otos_l1); 146 void push_f(FloatRegister f = Ftos_f); 147 void push_d(FloatRegister f = Ftos_d1); 148 149 150 void pop (TosState state); // transition vtos -> state 151 void push(TosState state); // transition state -> vtos 152 void empty_expression_stack(); // resets both Lesp and SP 153 154 #ifdef ASSERT 155 void verify_sp(Register Rsp, Register Rtemp); 156 void verify_esp(Register Resp); // verify that Lesp points to a word in the temp stack 157 #endif // ASSERT 158 159 public: 160 void if_cmp(Condition cc, bool ptr_compare); 161 162 // Load values from bytecode stream: 163 164 enum signedOrNot { Signed, Unsigned }; 165 enum setCCOrNot { set_CC, dont_set_CC }; 166 167 void get_2_byte_integer_at_bcp( int bcp_offset, 168 Register Rtmp, 169 Register Rdst, 170 signedOrNot is_signed, 171 setCCOrNot should_set_CC = dont_set_CC ); 172 173 void get_4_byte_integer_at_bcp( int bcp_offset, 174 Register Rtmp, 175 Register Rdst, 176 setCCOrNot should_set_CC = dont_set_CC ); 177 178 // Note: "get_cache_and_index" really means "get the index, use it to get the cache entry, and throw away the index". 179 void get_cache_and_index_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2)); 180 void get_cache_and_index_and_bytecode_at_bcp(Register cache, Register temp, Register bytecode, int byte_no, int bcp_offset, size_t index_size = sizeof(u2)); 181 void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2)); 182 // Note: This one does not fetch the cache. The first argument is a temp which may be killed. 183 void get_cache_index_at_bcp(Register temp, Register index, int bcp_offset, size_t index_size = sizeof(u2)); 184 185 // load cpool->resolved_references(index); 186 void load_resolved_reference_at_index(Register result, Register index, Register tmp); 187 188 // load cpool->resolved_klass_at(index) 189 void load_resolved_klass_at_offset(Register Rcpool, Register Roffset, Register Rklass); 190 191 // common code 192 193 void field_offset_at(int n, Register tmp, Register dest, Register base); 194 int field_offset_at(Register object, address bcp, int offset); 195 void fast_iaaccess(int n, address bcp); 196 void fast_iaputfield(address bcp, bool do_store_check ); 197 198 void index_check(Register array, Register index, int index_shift, Register tmp, Register res); 199 void index_check_without_pop(Register array, Register index, int index_shift, Register tmp, Register res); 200 201 void get_const(Register Rdst); 202 void get_constant_pool(Register Rdst); 203 void get_constant_pool_cache(Register Rdst); 204 void get_cpool_and_tags(Register Rcpool, Register Rtags); 205 void is_a(Label& L); 206 207 // Load compiled (i2c) or interpreter entry and call from interpreted 208 void call_from_interpreter(Register target, Register scratch, Register Rret); 209 210 // -------------------------------------------------- 211 212 void unlock_if_synchronized_method(TosState state, bool throw_monitor_exception = true, bool install_monitor_exception = true); 213 214 void add_monitor_to_stack( bool stack_is_empty, 215 Register Rtemp, 216 Register Rtemp2 ); 217 218 // Load/store aligned in _LP64 but unaligned otherwise 219 // These only apply to the Interpreter expression stack and locals! 220 void load_unaligned_double(Register r1, int offset, FloatRegister d); 221 void store_unaligned_double(FloatRegister d, Register r1, int offset ); 222 223 // Load/store aligned in _LP64 but unaligned otherwise 224 void load_unaligned_long(Register r1, int offset, Register d); 225 void store_unaligned_long(Register d, Register r1, int offset ); 226 227 void access_local_int( Register index, Register dst ); 228 void access_local_ptr( Register index, Register dst ); 229 void access_local_returnAddress( Register index, Register dst ); 230 void access_local_long( Register index, Register dst ); 231 void access_local_float( Register index, FloatRegister dst ); 232 void access_local_double( Register index, FloatRegister dst ); 233 #ifdef ASSERT 234 void check_for_regarea_stomp( Register Rindex, int offset, Register Rlimit, Register Rscratch, Register Rscratch1); 235 #endif // ASSERT 236 void store_local_int( Register index, Register src ); 237 void store_local_ptr( Register index, Register src ); 238 void store_local_ptr( int n, Register src ); 239 void store_local_long( Register index, Register src ); 240 void store_local_float( Register index, FloatRegister src ); 241 void store_local_double( Register index, FloatRegister src ); 242 243 // Helpers for swap and dup 244 void load_ptr(int n, Register val); 245 void store_ptr(int n, Register val); 246 247 // Helper for getting receiver in register. 248 void load_receiver(Register param_count, Register recv); 249 250 static int top_most_monitor_byte_offset(); // offset in bytes to top of monitor block 251 Address top_most_monitor(); 252 void compute_stack_base( Register Rdest ); 253 254 void get_method_counters(Register method, Register Rcounters, Label& skip); 255 void increment_invocation_counter( Register Rcounters, Register Rtmp, Register Rtmp2 ); 256 void increment_backedge_counter( Register Rcounters, Register Rtmp, Register Rtmp2 ); 257 void test_backedge_count_for_osr(Register backedge_count, Register method_counters, Register branch_bcp, Register Rtmp ); 258 259 // Object locking 260 void lock_object (Register lock_reg, Register obj_reg); 261 void unlock_object(Register lock_reg); 262 263 // Interpreter profiling operations 264 void set_method_data_pointer(); 265 void set_method_data_pointer_for_bcp(); 266 void test_method_data_pointer(Label& zero_continue); 267 void verify_method_data_pointer(); 268 void test_invocation_counter_for_mdp(Register invocation_count, Register method_counters, Register Rtmp, Label &profile_continue); 269 270 void set_mdp_data_at(int constant, Register value); 271 void increment_mdp_data_at(Address counter, Register bumped_count, 272 bool decrement = false); 273 void increment_mdp_data_at(int constant, Register bumped_count, 274 bool decrement = false); 275 void increment_mdp_data_at(Register reg, int constant, 276 Register bumped_count, Register scratch2, 277 bool decrement = false); 278 void increment_mask_and_jump(Address counter_addr, 279 int increment, Address mask_addr, 280 Register scratch1, Register scratch2, 281 Condition cond, Label *where); 282 void set_mdp_flag_at(int flag_constant, Register scratch); 283 void test_mdp_data_at(int offset, Register value, Label& not_equal_continue, 284 Register scratch); 285 286 void record_klass_in_profile(Register receiver, Register scratch, bool is_virtual_call); 287 void record_klass_in_profile_helper(Register receiver, Register scratch, 288 Label& done, bool is_virtual_call); 289 void record_item_in_profile_helper(Register item, 290 Register scratch, int start_row, Label& done, int total_rows, 291 OffsetFunction item_offset_fn, OffsetFunction item_count_offset_fn, 292 int non_profiled_offset); 293 294 void update_mdp_by_offset(int offset_of_disp, Register scratch); 295 void update_mdp_by_offset(Register reg, int offset_of_disp, 296 Register scratch); 297 void update_mdp_by_constant(int constant); 298 void update_mdp_for_ret(TosState state, Register return_bci); 299 300 void profile_taken_branch(Register scratch, Register bumped_count); 301 void profile_not_taken_branch(Register scratch); 302 void profile_call(Register scratch); 303 void profile_final_call(Register scratch); 304 void profile_virtual_call(Register receiver, Register scratch, bool receiver_can_be_null = false); 305 void profile_called_method(Register method, Register scratch) NOT_JVMCI_RETURN; 306 void profile_ret(TosState state, Register return_bci, Register scratch); 307 void profile_null_seen(Register scratch); 308 void profile_typecheck(Register klass, Register scratch); 309 void profile_typecheck_failed(Register scratch); 310 void profile_switch_default(Register scratch); 311 void profile_switch_case(Register index, 312 Register scratch1, 313 Register scratch2, 314 Register scratch3); 315 316 void profile_obj_type(Register obj, const Address& mdo_addr, Register tmp); 317 void profile_arguments_type(Register callee, Register tmp1, Register tmp2, bool is_virtual); 318 void profile_return_type(Register ret, Register tmp1, Register tmp2); 319 void profile_parameters_type(Register tmp1, Register tmp2, Register tmp3, Register tmp4); 320 321 // Debugging 322 void interp_verify_oop(Register reg, TosState state, const char * file, int line); // only if +VerifyOops && state == atos 323 void verify_oop_or_return_address(Register reg, Register rtmp); // for astore 324 void verify_FPU(int stack_depth, TosState state = ftos); // only if +VerifyFPU && (state == ftos || state == dtos) 325 326 // support for JVMTI/Dtrace 327 typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode; 328 void notify_method_entry(); 329 void notify_method_exit( 330 bool save_result, TosState state, NotifyMethodExitMode mode); 331 332 void save_return_value(TosState state, bool is_native_call); 333 void restore_return_value(TosState state, bool is_native_call); 334 335 }; 336 337 #endif // CPU_SPARC_VM_INTERP_MASM_SPARC_HPP 338