jdk8-mips64-public/hotspot: src/cpu/mips/vm/interp_masm_mips

     1 /*

     2  * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.

     3  * Copyright (c) 2015, 2016, Loongson Technology. All rights reserved.

     4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     5  *

     6  * This code is free software; you can redistribute it and/or modify it

     7  * under the terms of the GNU General Public License version 2 only, as

     8  * published by the Free Software Foundation.

     9  *

    10  * This code is distributed in the hope that it will be useful, but WITHOUT

    11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    13  * version 2 for more details (a copy is included in the LICENSE file that

    14  * accompanied this code).

    15  *

    16  * You should have received a copy of the GNU General Public License version

    17  * 2 along with this work; if not, write to the Free Software Foundation,

    18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    19  *

    20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    21  * or visit www.oracle.com if you need additional information or have any

    22  * questions.

    23  *

    24  */

    26 // This file specializes the assember with interpreter-specific macros

    28 #ifndef CPU_MIPS_VM_INTERP_MASM_MIPS_64_HPP

    29 #define CPU_MIPS_VM_INTERP_MASM_MIPS_64_HPP

    31 #include "asm/macroAssembler.hpp"

    32 #include "asm/macroAssembler.inline.hpp"

    33 #include "interpreter/invocationCounter.hpp"

    34 #include "runtime/frame.hpp"

    37 class InterpreterMacroAssembler: public MacroAssembler {

    38 #ifndef CC_INTERP

    39  private:

    40   Register _locals_register; // register that contains the pointer to the locals

    41   Register _bcp_register; // register that contains the bcp

    43  protected:

    44   // Interpreter specific version of call_VM_base

    45   virtual void call_VM_leaf_base(address entry_point,

    46                                  int number_of_arguments);

    48   virtual void call_VM_base(Register oop_result,

    49                             Register java_thread,

    50                             Register last_java_sp,

    51                             address  entry_point,

    52                             int number_of_arguments,

    53                             bool check_exceptions);

    55   virtual void check_and_handle_popframe(Register java_thread);

    56   virtual void check_and_handle_earlyret(Register java_thread);

    58   // base routine for all dispatches

    59   void dispatch_base(TosState state, address* table, bool verifyoop = true);

    60 #endif // CC_INTERP

    62  public:

    63   InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code), _locals_register(LVP), _bcp_register(BCP) {}

    65   void load_earlyret_value(TosState state);

    67 #ifdef CC_INTERP

    68   void save_bcp()                                          { /*  not needed in c++ interpreter and harmless */ }

    69   void restore_bcp()                                       { /*  not needed in c++ interpreter and harmless */ }

    71   // Helpers for runtime call arguments/results

    72   void get_method(Register reg);

    74 #else

    76   // Interpreter-specific registers

    77   void save_bcp() {

    78     sd(BCP, FP, frame::interpreter_frame_bcx_offset * wordSize);

    79   }

    81   void restore_bcp() {

    82     ld(BCP, FP, frame::interpreter_frame_bcx_offset * wordSize);

    83   }

    85   void restore_locals() {

    86     ld(LVP, FP, frame::interpreter_frame_locals_offset * wordSize);

    87   }

    89   // Helpers for runtime call arguments/results

    90   void get_method(Register reg) {

    91     ld(reg, FP, frame::interpreter_frame_method_offset * wordSize);

    92   }

    94   void get_const(Register reg){

    95     get_method(reg);

    96     ld(reg, reg, in_bytes(Method::const_offset()));

    97   }

    99   void get_constant_pool(Register reg) {

   100     get_const(reg);

   101     ld(reg, reg, in_bytes(ConstMethod::constants_offset()));

   102   }

   104   void get_constant_pool_cache(Register reg) {

   105     get_constant_pool(reg);

   106     ld(reg, reg, ConstantPool::cache_offset_in_bytes());

   107   }

   109   void get_cpool_and_tags(Register cpool, Register tags) {

   110     get_constant_pool(cpool);

   111     ld(tags, cpool, ConstantPool::tags_offset_in_bytes());

   112   }

   114   void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset);

   115   void get_cache_and_index_at_bcp(Register cache, Register index,

   116                                   int bcp_offset, size_t index_size = sizeof (u2));

   117   void get_cache_and_index_and_bytecode_at_bcp(Register cache, Register index,

   118                                                Register bytecode, int byte_no,

   119                                                int bcp_offset, size_t index_size = sizeof(u2));

   120   void get_cache_entry_pointer_at_bcp(Register cache, Register tmp,

   121                                       int bcp_offset, size_t index_size = sizeof(u2));

   122   void get_cache_index_at_bcp(Register index, int bcp_offset, size_t index_size = sizeof(u2));

   123   void get_method_counters(Register method, Register mcs, Label& skip);

   124   // load cpool->resolved_references(index);

   125   void load_resolved_reference_at_index(Register result, Register index);

   127   void pop_ptr(Register r = V0);

   128   void pop_i(Register r = V0);

   129   //void pop_l(Register r = V0);

   130   void pop_l(Register lo = V0, Register hi = V1);

   131   //void pop_f(XMMRegister r = xmm0);

   132   //void pop_d(XMMRegister r = xmm0);

   133   void pop_f();

   134   void pop_d();

   135   void push_ptr(Register r = V0);

   136   void push_i(Register r = V0);

   137   //void push_l(Register r = V0);

   138   void push_l(Register lo = V0, Register hi = V1);

   139   //void push_f(XMMRegister r = xmm0);

   140   //void push_d(XMMRegister r = xmm0);

   141   void push_f();

   142   void push_d(FloatRegister r = F0);

   144   void pop(Register r ) { ((MacroAssembler*)this)->pop(r); }

   146   void push(Register r ) { ((MacroAssembler*)this)->push(r); }

   147   //void push(int32_t imm ) { ((MacroAssembler*)this)->push(imm); }

   149   void pop_dtos_to_esp();

   150   void pop_ftos_to_esp();

   152   void pop(TosState state); // transition vtos -> state

   153   void push(TosState state); // transition state -> vtos

   154 /*

   155   // Tagged stack support, pop and push both tag and value.

   156   void pop_ptr(Register r, Register tag);

   157   void push_ptr(Register r, Register tag);

   158 #endif // CC_INTERP

   160   DEBUG_ONLY(void verify_stack_tag(frame::Tag t);)

   162 #ifndef CC_INTERP

   164   // Tagged stack helpers for swap and dup

   165   void load_ptr_and_tag(int n, Register val, Register tag);

   166   void store_ptr_and_tag(int n, Register val, Register tag);

   168   // Tagged Local support

   169   void tag_local(frame::Tag tag, int n);

   170   void tag_local(Register tag, int n);

   171   void tag_local(frame::Tag tag, Register idx);

   172   void tag_local(Register tag, Register idx);

   174 #ifdef ASSERT

   175   void verify_local_tag(frame::Tag tag, int n);

   176   void verify_local_tag(frame::Tag tag, Register idx);

   177 #endif // ASSERT

   179 */

   180   void empty_expression_stack()

   181   {

   182     ld(SP, FP, frame::interpreter_frame_monitor_block_top_offset * wordSize);

   183     // NULL last_sp until next java call

   184     sd(R0, FP, frame::interpreter_frame_last_sp_offset * wordSize);

   185   }

   187   // Super call_VM calls - correspond to MacroAssembler::call_VM(_leaf) calls

   188   /*void super_call_VM_leaf(address entry_point);

   189   void super_call_VM_leaf(address entry_point, Register arg_1);

   190   void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2);

   191   void super_call_VM_leaf(address entry_point,

   192                           Register arg_1, Register arg_2, Register arg_3);*/

   193   void load_ptr(int n, Register val);

   194   void store_ptr(int n, Register val);

   196   // Generate a subtype check: branch to ok_is_subtype if sub_klass is

   197   // a subtype of super_klass.

   198   //void gen_subtype_check( Register sub_klass, Label &ok_is_subtype );

   199   void gen_subtype_check( Register Rsup_klass, Register sub_klass, Label &ok_is_subtype );

   201   // Dispatching

   202   void dispatch_prolog(TosState state, int step = 0);

   203   void dispatch_epilog(TosState state, int step = 0);

   204   // dispatch via ebx (assume ebx is loaded already)

   205   void dispatch_only(TosState state);

   206   // dispatch normal table via ebx (assume ebx is loaded already)

   207   void dispatch_only_normal(TosState state);

   208   void dispatch_only_noverify(TosState state);

   209   // load ebx from [esi + step] and dispatch via ebx

   210   void dispatch_next(TosState state, int step = 0);

   211   // load ebx from [esi] and dispatch via ebx and table

   212   void dispatch_via (TosState state, address* table);

   214   // jump to an invoked target

   215   void prepare_to_jump_from_interpreted();

   216   void jump_from_interpreted(Register method, Register temp);

   219   // Returning from interpreted functions

   220   //

   221   // Removes the current activation (incl. unlocking of monitors)

   222   // and sets up the return address.  This code is also used for

   223   // exception unwindwing. In that case, we do not want to throw

   224   // IllegalMonitorStateExceptions, since that might get us into an

   225   // infinite rethrow exception loop.

   226   // Additionally this code is used for popFrame and earlyReturn.

   227   // In popFrame case we want to skip throwing an exception,

   228   // installing an exception, and notifying jvmdi.

   229   // In earlyReturn case we only want to skip throwing an exception

   230   // and installing an exception.

   231   void remove_activation(TosState state, Register ret_addr,

   232                          bool throw_monitor_exception = true,

   233                          bool install_monitor_exception = true,

   234                          bool notify_jvmdi = true);

   235 #endif // CC_INTERP

   237   // Object locking

   238   void lock_object  (Register lock_reg);

   239   void unlock_object(Register lock_reg);

   241 #ifndef CC_INTERP

   243   // Interpreter profiling operations

   244   void set_method_data_pointer_for_bcp();

   245   void test_method_data_pointer(Register mdp, Label& zero_continue);

   246   void verify_method_data_pointer();

   248   void set_mdp_data_at(Register mdp_in, int constant, Register value);

   249   void increment_mdp_data_at(Address data, bool decrement = false);

   250   void increment_mdp_data_at(Register mdp_in, int constant,

   251                              bool decrement = false);

   252   void increment_mdp_data_at(Register mdp_in, Register reg, int constant,

   253                              bool decrement = false);

   254 /*  void increment_mask_and_jump(Address counter_addr,

   255                                int increment, int mask,

   256                                Register scratch, bool preloaded,

   257                                Condition cond, Label* where); */

   258   void set_mdp_flag_at(Register mdp_in, int flag_constant);

   259   void test_mdp_data_at(Register mdp_in, int offset, Register value,

   260                         Register test_value_out,

   261                         Label& not_equal_continue);

   263   void record_klass_in_profile(Register receiver, Register mdp,

   264                                Register reg2, bool is_virtual_call);

   265   void record_klass_in_profile_helper(Register receiver, Register mdp,

   266                                       Register reg2, int start_row,

   267                                       Label& done, bool is_virtual_call);

   269   void update_mdp_by_offset(Register mdp_in, int offset_of_offset);

   270   void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp);

   271   void update_mdp_by_constant(Register mdp_in, int constant);

   272   void update_mdp_for_ret(Register return_bci);

   274   void profile_taken_branch(Register mdp, Register bumped_count);

   275   void profile_not_taken_branch(Register mdp);

   276   void profile_call(Register mdp);

   277   void profile_final_call(Register mdp);

   278   void profile_virtual_call(Register receiver, Register mdp,

   279                             Register scratch2,

   280                             bool receiver_can_be_null = false);

   281   void profile_ret(Register return_bci, Register mdp);

   282 	void profile_checkcast(bool is_null	, Register mdp);

   283   void profile_null_seen(Register mdp);

   284   void profile_typecheck(Register mdp, Register klass, Register scratch);

   285   void profile_typecheck_failed(Register mdp);

   286   void profile_switch_default(Register mdp);

   287   void profile_switch_case(Register index_in_scratch, Register mdp,

   288                            Register scratch2);

   290   // Debugging

   291   // only if +VerifyOops && state == atos

   292   void verify_oop(Register reg, TosState state = atos);

   293   // only if +VerifyFPU  && (state == ftos || state == dtos)

   294   void verify_FPU(int stack_depth, TosState state = ftos);

   296   void profile_obj_type(Register obj, const Address& mdo_addr);

   297   void profile_arguments_type(Register mdp, Register callee, Register tmp, bool is_virtual);

   298   void profile_return_type(Register mdp, Register ret, Register tmp);

   299   void profile_parameters_type(Register mdp, Register tmp1, Register tmp2);

   300 #endif // !CC_INTERP

   302   typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode;

   304   // support for jvmti/dtrace

   305   void notify_method_entry();

   306   void notify_method_exit(bool is_native_method, TosState state, NotifyMethodExitMode mode);

   307 	void save_return_value(TosState state, bool is_native_call);

   308   void restore_return_value(TosState state, bool is_native_call);

   309 };

   311 #endif // CPU_MIPS_VM_INTERP_MASM_MIPS_64_HPP

src/cpu/mips/vm/interp_masm_mips_64.hpp@2d8a650513c2

src/cpu/mips/vm/interp_masm_mips_64.hpp

Mercurial > jdk8-mips64-public > hotspot / file revision

src/cpu/mips/vm/interp_masm_mips_64.hpp@2d8a650513c2

src/cpu/mips/vm/interp_masm_mips_64.hpp