1 /* 2 * Copyright (c) 1997, 2013, 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.inline.hpp" 29 #include "interpreter/invocationCounter.hpp" 30 31 // This file specializes the assember with interpreter-specific macros 32 33 REGISTER_DECLARATION( Register, Otos_i , O0); // tos for ints, etc 34 REGISTER_DECLARATION( Register, Otos_l , O0); // for longs 35 REGISTER_DECLARATION( Register, Otos_l1, O0); // for 1st part of longs 36 REGISTER_DECLARATION( Register, Otos_l2, O1); // for 2nd part of longs 37 REGISTER_DECLARATION(FloatRegister, Ftos_f , F0); // for floats 38 REGISTER_DECLARATION(FloatRegister, Ftos_d , F0); // for doubles 39 REGISTER_DECLARATION(FloatRegister, Ftos_d1, F0); // for 1st part of double 40 REGISTER_DECLARATION(FloatRegister, Ftos_d2, F1); // for 2nd part of double 41 42 #ifndef DONT_USE_REGISTER_DEFINES 43 #define Otos_i O0 44 #define Otos_l O0 45 #define Otos_l1 O0 46 #define Otos_l2 O1 47 #define Ftos_f F0 48 #define Ftos_d F0 49 #define Ftos_d1 F0 50 #define Ftos_d2 F1 51 #endif // DONT_USE_REGISTER_DEFINES 52 53 class InterpreterMacroAssembler: public MacroAssembler { 54 protected: 55 #ifndef CC_INTERP 56 // Interpreter specific version of call_VM_base 57 virtual void call_VM_leaf_base( 58 Register java_thread, 59 address entry_point, 60 int number_of_arguments 61 ); 62 63 virtual void call_VM_base( 64 Register oop_result, 65 Register java_thread, 66 Register last_java_sp, 67 address entry_point, 68 int number_of_arguments, 69 bool check_exception=true 70 ); 71 72 virtual void check_and_handle_popframe(Register java_thread); 73 virtual void check_and_handle_earlyret(Register java_thread); 74 75 // base routine for all dispatches 76 void dispatch_base(TosState state, address* table); 77 #endif /* CC_INTERP */ 78 79 public: 80 InterpreterMacroAssembler(CodeBuffer* c) 81 : MacroAssembler(c) {} 82 83 #ifndef CC_INTERP 84 virtual void load_earlyret_value(TosState state); 85 86 static const Address l_tmp ; 87 static const Address d_tmp ; 88 #endif /* CC_INTERP */ 89 90 // helper routine for frame allocation/deallocation 91 // compute the delta by which the caller's SP has to 92 // be adjusted to accomodate for the non-argument 93 // locals 94 void compute_extra_locals_size_in_bytes(Register args_size, Register locals_size, Register delta); 95 96 #ifndef CC_INTERP 97 98 // dispatch routines 99 void dispatch_prolog(TosState state, int step = 0); 100 void dispatch_epilog(TosState state, int step = 0); 101 void dispatch_only(TosState state); 102 void dispatch_normal(TosState state); 103 void dispatch_next(TosState state, int step = 0); 104 void dispatch_next_noverify_oop(TosState state, int step = 0); 105 void dispatch_via (TosState state, address* table); 106 107 108 // Removes the current activation (incl. unlocking of monitors). 109 // Additionally this code is used for earlyReturn in which case we 110 // want to skip throwing an exception and installing an exception. 111 void remove_activation(TosState state, 112 bool throw_monitor_exception = true, 113 bool install_monitor_exception = true); 114 115 protected: 116 void dispatch_Lbyte_code(TosState state, address* table, int bcp_incr = 0, bool verify = true); 117 #endif /* CC_INTERP */ 118 119 public: 120 // Super call_VM calls - correspond to MacroAssembler::call_VM(_leaf) calls 121 void super_call_VM(Register thread_cache, 122 Register oop_result, 123 Register last_java_sp, 124 address entry_point, 125 Register arg_1, 126 Register arg_2, 127 bool check_exception = true); 128 129 #ifndef CC_INTERP 130 void super_call_VM_leaf(Register thread_cache, address entry_point, Register arg_1, Register arg_2); 131 132 // Generate a subtype check: branch to ok_is_subtype if sub_klass is 133 // a subtype of super_klass. Blows registers tmp1, tmp2 and tmp3. 134 void gen_subtype_check( Register sub_klass, Register super_klass, Register tmp1, Register tmp2, Register tmp3, Label &ok_is_subtype ); 135 136 // helpers for tossing exceptions 137 void throw_if_not_1_icc( Condition ok_condition, Label& ok ); 138 void throw_if_not_1_xcc( Condition ok_condition, Label& ok ); 139 void throw_if_not_1_x ( Condition ok_condition, Label& ok ); // chooses icc or xcc based on _LP64 140 141 void throw_if_not_2( address throw_entry_point, Register Rscratch, Label& ok); 142 143 void throw_if_not_icc( Condition ok_condition, address throw_entry_point, Register Rscratch ); 144 void throw_if_not_xcc( Condition ok_condition, address throw_entry_point, Register Rscratch ); 145 void throw_if_not_x ( Condition ok_condition, address throw_entry_point, Register Rscratch ); 146 147 // helpers for expression stack 148 149 void pop_i( Register r = Otos_i); 150 void pop_ptr( Register r = Otos_i, Register scratch = O4); 151 void pop_l( Register r = Otos_l1); 152 // G4_scratch and Lscratch are used at call sites!! 153 void pop_f(FloatRegister f = Ftos_f, Register scratch = G1_scratch); 154 void pop_d(FloatRegister f = Ftos_d1, Register scratch = G1_scratch); 155 156 void push_i( Register r = Otos_i); 157 void push_ptr( Register r = Otos_i); 158 void push_l( Register r = Otos_l1); 159 void push_f(FloatRegister f = Ftos_f); 160 void push_d(FloatRegister f = Ftos_d1); 161 162 163 void pop (TosState state); // transition vtos -> state 164 void push(TosState state); // transition state -> vtos 165 void empty_expression_stack(); // resets both Lesp and SP 166 167 #ifdef ASSERT 168 void verify_sp(Register Rsp, Register Rtemp); 169 void verify_esp(Register Resp); // verify that Lesp points to a word in the temp stack 170 #endif // ASSERT 171 172 public: 173 void if_cmp(Condition cc, bool ptr_compare); 174 175 // Load values from bytecode stream: 176 177 enum signedOrNot { Signed, Unsigned }; 178 enum setCCOrNot { set_CC, dont_set_CC }; 179 180 void get_2_byte_integer_at_bcp( int bcp_offset, 181 Register Rtmp, 182 Register Rdst, 183 signedOrNot is_signed, 184 setCCOrNot should_set_CC = dont_set_CC ); 185 186 void get_4_byte_integer_at_bcp( int bcp_offset, 187 Register Rtmp, 188 Register Rdst, 189 setCCOrNot should_set_CC = dont_set_CC ); 190 191 // Note: "get_cache_and_index" really means "get the index, use it to get the cache entry, and throw away the index". 192 void get_cache_and_index_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2)); 193 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)); 194 void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2)); 195 // Note: This one does not fetch the cache. The first argument is a temp which may be killed. 196 void get_cache_index_at_bcp(Register temp, Register index, int bcp_offset, size_t index_size = sizeof(u2)); 197 198 // load cpool->resolved_references(index); 199 void load_resolved_reference_at_index(Register result, Register index); 200 201 // common code 202 203 void field_offset_at(int n, Register tmp, Register dest, Register base); 204 int field_offset_at(Register object, address bcp, int offset); 205 void fast_iaaccess(int n, address bcp); 206 void fast_iagetfield(address bcp); 207 void fast_iaputfield(address bcp, bool do_store_check ); 208 209 void index_check(Register array, Register index, int index_shift, Register tmp, Register res); 210 void index_check_without_pop(Register array, Register index, int index_shift, Register tmp, Register res); 211 212 void get_const(Register Rdst); 213 void get_constant_pool(Register Rdst); 214 void get_constant_pool_cache(Register Rdst); 215 void get_cpool_and_tags(Register Rcpool, Register Rtags); 216 void is_a(Label& L); 217 218 // Load compiled (i2c) or interpreter entry and call from interpreted 219 void call_from_interpreter(Register target, Register scratch, Register Rret); 220 221 // -------------------------------------------------- 222 223 void unlock_if_synchronized_method(TosState state, bool throw_monitor_exception = true, bool install_monitor_exception = true); 224 225 void add_monitor_to_stack( bool stack_is_empty, 226 Register Rtemp, 227 Register Rtemp2 ); 228 229 // Load/store aligned in _LP64 but unaligned otherwise 230 // These only apply to the Interpreter expression stack and locals! 231 void load_unaligned_double(Register r1, int offset, FloatRegister d); 232 void store_unaligned_double(FloatRegister d, Register r1, int offset ); 233 234 // Load/store aligned in _LP64 but unaligned otherwise 235 void load_unaligned_long(Register r1, int offset, Register d); 236 void store_unaligned_long(Register d, Register r1, int offset ); 237 238 void access_local_int( Register index, Register dst ); 239 void access_local_ptr( Register index, Register dst ); 240 void access_local_returnAddress( Register index, Register dst ); 241 void access_local_long( Register index, Register dst ); 242 void access_local_float( Register index, FloatRegister dst ); 243 void access_local_double( Register index, FloatRegister dst ); 244 #ifdef ASSERT 245 void check_for_regarea_stomp( Register Rindex, int offset, Register Rlimit, Register Rscratch, Register Rscratch1); 246 #endif // ASSERT 247 void store_local_int( Register index, Register src ); 248 void store_local_ptr( Register index, Register src ); 249 void store_local_ptr( int n, Register src ); 250 void store_local_long( Register index, Register src ); 251 void store_local_float( Register index, FloatRegister src ); 252 void store_local_double( Register index, FloatRegister src ); 253 254 // Helpers for swap and dup 255 void load_ptr(int n, Register val); 256 void store_ptr(int n, Register val); 257 258 // Helper for getting receiver in register. 259 void load_receiver(Register param_count, Register recv); 260 261 static int top_most_monitor_byte_offset(); // offset in bytes to top of monitor block 262 Address top_most_monitor(); 263 void compute_stack_base( Register Rdest ); 264 265 #endif /* CC_INTERP */ 266 void get_method_counters(Register method, Register Rcounters, Label& skip); 267 void increment_invocation_counter( Register Rcounters, Register Rtmp, Register Rtmp2 ); 268 void increment_backedge_counter( Register Rcounters, Register Rtmp, Register Rtmp2 ); 269 #ifndef CC_INTERP 270 void test_backedge_count_for_osr( Register backedge_count, Register branch_bcp, Register Rtmp ); 271 272 #endif /* CC_INTERP */ 273 // Object locking 274 void lock_object (Register lock_reg, Register obj_reg); 275 void unlock_object(Register lock_reg); 276 277 #ifndef CC_INTERP 278 // Interpreter profiling operations 279 void set_method_data_pointer(); 280 void set_method_data_pointer_for_bcp(); 281 void test_method_data_pointer(Label& zero_continue); 282 void verify_method_data_pointer(); 283 void test_invocation_counter_for_mdp(Register invocation_count, Register Rtmp, Label &profile_continue); 284 285 void set_mdp_data_at(int constant, Register value); 286 void increment_mdp_data_at(Address counter, Register bumped_count, 287 bool decrement = false); 288 void increment_mdp_data_at(int constant, Register bumped_count, 289 bool decrement = false); 290 void increment_mdp_data_at(Register reg, int constant, 291 Register bumped_count, Register scratch2, 292 bool decrement = false); 293 void increment_mask_and_jump(Address counter_addr, 294 int increment, int mask, 295 Register scratch1, Register scratch2, 296 Condition cond, Label *where); 297 void set_mdp_flag_at(int flag_constant, Register scratch); 298 void test_mdp_data_at(int offset, Register value, Label& not_equal_continue, 299 Register scratch); 300 301 void record_klass_in_profile(Register receiver, Register scratch, bool is_virtual_call); 302 void record_klass_in_profile_helper(Register receiver, Register scratch, 303 int start_row, Label& done, bool is_virtual_call); 304 305 void update_mdp_by_offset(int offset_of_disp, Register scratch); 306 void update_mdp_by_offset(Register reg, int offset_of_disp, 307 Register scratch); 308 void update_mdp_by_constant(int constant); 309 void update_mdp_for_ret(TosState state, Register return_bci); 310 311 void profile_taken_branch(Register scratch, Register bumped_count); 312 void profile_not_taken_branch(Register scratch); 313 void profile_call(Register scratch); 314 void profile_final_call(Register scratch); 315 void profile_virtual_call(Register receiver, Register scratch, bool receiver_can_be_null = false); 316 void profile_ret(TosState state, Register return_bci, Register scratch); 317 void profile_null_seen(Register scratch); 318 void profile_typecheck(Register klass, Register scratch); 319 void profile_typecheck_failed(Register scratch); 320 void profile_switch_default(Register scratch); 321 void profile_switch_case(Register index, 322 Register scratch1, 323 Register scratch2, 324 Register scratch3); 325 326 // Debugging 327 void interp_verify_oop(Register reg, TosState state, const char * file, int line); // only if +VerifyOops && state == atos 328 void verify_oop_or_return_address(Register reg, Register rtmp); // for astore 329 void verify_FPU(int stack_depth, TosState state = ftos); // only if +VerifyFPU && (state == ftos || state == dtos) 330 331 #endif /* CC_INTERP */ 332 // support for JVMTI/Dtrace 333 typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode; 334 void notify_method_entry(); 335 void notify_method_exit( 336 bool save_result, TosState state, NotifyMethodExitMode mode); 337 338 void save_return_value(TosState state, bool is_native_call); 339 void restore_return_value(TosState state, bool is_native_call); 340 341 }; 342 343 #endif // CPU_SPARC_VM_INTERP_MASM_SPARC_HPP