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src/share/vm/interpreter/templateTable.hpp@ab102d5d923e

src/share/vm/interpreter/templateTable.hpp

Sun, 23 May 2010 01:38:26 -0700

author
jrose
date
Sun, 23 May 2010 01:38:26 -0700
changeset 1920
ab102d5d923e
parent 1279
bd02caa94611
child 1934
e9ff18c4ace7
permissions
-rw-r--r--

6939207: refactor constant pool index processing
Summary: Factored cleanup of instruction decode which prepares for enhanced ldc semantics.
Reviewed-by: twisti

     1 /*

     2  * Copyright 1997-2010 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  *

    23  */

    24 

    25 #ifndef CC_INTERP

    26 // All the necessary definitions used for (bytecode) template generation. Instead of

    27 // spreading the implementation functionality for each bytecode in the interpreter

    28 // and the snippet generator, a template is assigned to each bytecode which can be

    29 // used to generate the bytecode's implementation if needed.

    30 

    31 

    32 // A Template describes the properties of a code template for a given bytecode

    33 // and provides a generator to generate the code template.

    34 

    35 class Template VALUE_OBJ_CLASS_SPEC {

    36  private:

    37   enum Flags {

    38     uses_bcp_bit,                                // set if template needs the bcp pointing to bytecode

    39     does_dispatch_bit,                           // set if template dispatches on its own

    40     calls_vm_bit,                                // set if template calls the vm

    41     wide_bit                                     // set if template belongs to a wide instruction

    42   };

    43 

    44   typedef void (*generator)(int arg);

    45 

    46   int       _flags;                              // describes interpreter template properties (bcp unknown)

    47   TosState  _tos_in;                             // tos cache state before template execution

    48   TosState  _tos_out;                            // tos cache state after  template execution

    49   generator _gen;                                // template code generator

    50   int       _arg;                                // argument for template code generator

    51 

    52   void      initialize(int flags, TosState tos_in, TosState tos_out, generator gen, int arg);

    53 

    54   friend class TemplateTable;

    55 

    56  public:

    57   Bytecodes::Code bytecode() const;

    58   bool      is_valid() const                     { return _gen != NULL; }

    59   bool      uses_bcp() const                     { return (_flags & (1 << uses_bcp_bit     )) != 0; }

    60   bool      does_dispatch() const                { return (_flags & (1 << does_dispatch_bit)) != 0; }

    61   bool      calls_vm() const                     { return (_flags & (1 << calls_vm_bit     )) != 0; }

    62   bool      is_wide() const                      { return (_flags & (1 << wide_bit         )) != 0; }

    63   TosState  tos_in() const                       { return _tos_in; }

    64   TosState  tos_out() const                      { return _tos_out; }

    65   void      generate(InterpreterMacroAssembler* masm);

    66 };

    67 

    68 

    69 // The TemplateTable defines all Templates and provides accessor functions

    70 // to get the template for a given bytecode.

    71 

    72 class TemplateTable: AllStatic {

    73  public:

    74   enum Operation { add, sub, mul, div, rem, _and, _or, _xor, shl, shr, ushr };

    75   enum Condition { equal, not_equal, less, less_equal, greater, greater_equal };

    76   enum CacheByte { f1_byte = 1, f2_byte = 2, f1_oop = 0x11 };  // byte_no codes

    77 

    78  private:

    79   static bool            _is_initialized;        // true if TemplateTable has been initialized

    80   static Template        _template_table     [Bytecodes::number_of_codes];

    81   static Template        _template_table_wide[Bytecodes::number_of_codes];

    82 

    83   static Template*       _desc;                  // the current template to be generated

    84   static Bytecodes::Code bytecode()              { return _desc->bytecode(); }

    85 

    86   static BarrierSet*     _bs;                    // Cache the barrier set.

    87  public:

    88   //%note templates_1

    89   static InterpreterMacroAssembler* _masm;       // the assembler used when generating templates

    90 

    91  private:

    92 

    93   // special registers

    94   static inline Address at_bcp(int offset);

    95 

    96   // helpers

    97   static void unimplemented_bc();

    98   static void patch_bytecode(Bytecodes::Code bc, Register scratch1,

    99                              Register scratch2, bool load_bc_in_scratch = true);

   100 

   101   // C calls

   102   static void call_VM(Register oop_result, address entry_point);

   103   static void call_VM(Register oop_result, address entry_point, Register arg_1);

   104   static void call_VM(Register oop_result, address entry_point, Register arg_1, Register arg_2);

   105   static void call_VM(Register oop_result, address entry_point, Register arg_1, Register arg_2, Register arg_3);

   106 

   107   // these overloadings are not presently used on SPARC:

   108   static void call_VM(Register oop_result, Register last_java_sp, address entry_point);

   109   static void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1);

   110   static void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2);

   111   static void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2, Register arg_3);

   112 

   113   // bytecodes

   114   static void nop();

   115 

   116   static void aconst_null();

   117   static void iconst(int value);

   118   static void lconst(int value);

   119   static void fconst(int value);

   120   static void dconst(int value);

   121 

   122   static void bipush();

   123   static void sipush();

   124   static void ldc(bool wide);

   125   static void ldc2_w();

   126 

   127   static void locals_index(Register reg, int offset = 1);

   128   static void iload();

   129   static void fast_iload();

   130   static void fast_iload2();

   131   static void fast_icaload();

   132   static void lload();

   133   static void fload();

   134   static void dload();

   135   static void aload();

   136 

   137   static void locals_index_wide(Register reg);

   138   static void wide_iload();

   139   static void wide_lload();

   140   static void wide_fload();

   141   static void wide_dload();

   142   static void wide_aload();

   143 

   144   static void iaload();

   145   static void laload();

   146   static void faload();

   147   static void daload();

   148   static void aaload();

   149   static void baload();

   150   static void caload();

   151   static void saload();

   152 

   153   static void iload(int n);

   154   static void lload(int n);

   155   static void fload(int n);

   156   static void dload(int n);

   157   static void aload(int n);

   158   static void aload_0();

   159 

   160   static void istore();

   161   static void lstore();

   162   static void fstore();

   163   static void dstore();

   164   static void astore();

   165 

   166   static void wide_istore();

   167   static void wide_lstore();

   168   static void wide_fstore();

   169   static void wide_dstore();

   170   static void wide_astore();

   171 

   172   static void iastore();

   173   static void lastore();

   174   static void fastore();

   175   static void dastore();

   176   static void aastore();

   177   static void bastore();

   178   static void castore();

   179   static void sastore();

   180 

   181   static void istore(int n);

   182   static void lstore(int n);

   183   static void fstore(int n);

   184   static void dstore(int n);

   185   static void astore(int n);

   186 

   187   static void pop();

   188   static void pop2();

   189   static void dup();

   190   static void dup_x1();

   191   static void dup_x2();

   192   static void dup2();

   193   static void dup2_x1();

   194   static void dup2_x2();

   195   static void swap();

   196 

   197   static void iop2(Operation op);

   198   static void lop2(Operation op);

   199   static void fop2(Operation op);

   200   static void dop2(Operation op);

   201 

   202   static void idiv();

   203   static void irem();

   204 

   205   static void lmul();

   206   static void ldiv();

   207   static void lrem();

   208   static void lshl();

   209   static void lshr();

   210   static void lushr();

   211 

   212   static void ineg();

   213   static void lneg();

   214   static void fneg();

   215   static void dneg();

   216 

   217   static void iinc();

   218   static void wide_iinc();

   219   static void convert();

   220   static void lcmp();

   221 

   222   static void float_cmp (bool is_float, int unordered_result);

   223   static void float_cmp (int unordered_result);

   224   static void double_cmp(int unordered_result);

   225 

   226   static void count_calls(Register method, Register temp);

   227   static void branch(bool is_jsr, bool is_wide);

   228   static void if_0cmp   (Condition cc);

   229   static void if_icmp   (Condition cc);

   230   static void if_nullcmp(Condition cc);

   231   static void if_acmp   (Condition cc);

   232 

   233   static void _goto();

   234   static void jsr();

   235   static void ret();

   236   static void wide_ret();

   237 

   238   static void goto_w();

   239   static void jsr_w();

   240 

   241   static void tableswitch();

   242   static void lookupswitch();

   243   static void fast_linearswitch();

   244   static void fast_binaryswitch();

   245 

   246   static void _return(TosState state);

   247 

   248   static void resolve_cache_and_index(int byte_no,       // one of 1,2,11

   249                                       Register result ,  // either noreg or output for f1/f2

   250                                       Register cache,    // output for CP cache

   251                                       Register index,    // output for CP index

   252                                       size_t index_size); // one of 1,2,4

   253   static void load_invoke_cp_cache_entry(int byte_no,

   254                                          Register method,

   255                                          Register itable_index,

   256                                          Register flags,

   257                                          bool is_invokevirtual,

   258                                          bool is_virtual_final,

   259                                          bool is_invokedynamic);

   260   static void load_field_cp_cache_entry(Register obj,

   261                                         Register cache,

   262                                         Register index,

   263                                         Register offset,

   264                                         Register flags,

   265                                         bool is_static);

   266   static void invokevirtual(int byte_no);

   267   static void invokespecial(int byte_no);

   268   static void invokestatic(int byte_no);

   269   static void invokeinterface(int byte_no);

   270   static void invokedynamic(int byte_no);

   271   static void fast_invokevfinal(int byte_no);

   272 

   273   static void getfield_or_static(int byte_no, bool is_static);

   274   static void putfield_or_static(int byte_no, bool is_static);

   275   static void getfield(int byte_no);

   276   static void putfield(int byte_no);

   277   static void getstatic(int byte_no);

   278   static void putstatic(int byte_no);

   279   static void pop_and_check_object(Register obj);

   280 

   281   static void _new();

   282   static void newarray();

   283   static void anewarray();

   284   static void arraylength();

   285   static void checkcast();

   286   static void instanceof();

   287 

   288   static void athrow();

   289 

   290   static void monitorenter();

   291   static void monitorexit();

   292 

   293   static void wide();

   294   static void multianewarray();

   295 

   296   static void fast_xaccess(TosState state);

   297   static void fast_accessfield(TosState state);

   298   static void fast_storefield(TosState state);

   299 

   300   static void _breakpoint();

   301 

   302   static void shouldnotreachhere();

   303 

   304   // jvmti support

   305   static void jvmti_post_field_access(Register cache, Register index, bool is_static, bool has_tos);

   306   static void jvmti_post_field_mod(Register cache, Register index, bool is_static);

   307   static void jvmti_post_fast_field_mod();

   308 

   309   // debugging of TemplateGenerator

   310   static void transition(TosState tos_in, TosState tos_out);// checks if in/out states expected by template generator correspond to table entries

   311 

   312   // initialization helpers

   313   static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(            ), char filler );

   314   static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(int arg     ), int arg     );

   315  static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(bool arg    ), bool arg    );

   316   static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(TosState tos), TosState tos);

   317   static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(Operation op), Operation op);

   318   static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(Condition cc), Condition cc);

   319 

   320   friend class Template;

   321 

   322   // InterpreterMacroAssembler::is_a(), etc., need TemplateTable::call_VM().

   323   friend class InterpreterMacroAssembler;

   324 

   325  public:

   326   // Initialization

   327   static void initialize();

   328   static void pd_initialize();

   329 

   330   // Templates

   331   static Template* template_for     (Bytecodes::Code code)  { Bytecodes::check     (code); return &_template_table     [code]; }

   332   static Template* template_for_wide(Bytecodes::Code code)  { Bytecodes::wide_check(code); return &_template_table_wide[code]; }

   333 

   334   // Platform specifics

   335   #include "incls/_templateTable_pd.hpp.incl"

   336 };

   337 #endif /* !CC_INTERP */

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