jdk8-mips64-public/hotspot: src/share/vm/opto/runtime.hpp@69ea58782b1a

8054054: 8040121 is broken
Summary: C++ code pattern from 8040121 is incorrect
Reviewed-by: kvn

     1 /*

     2  * Copyright (c) 1998, 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  */

    25 #ifndef SHARE_VM_OPTO_RUNTIME_HPP

    26 #define SHARE_VM_OPTO_RUNTIME_HPP

    28 #include "code/codeBlob.hpp"

    29 #include "opto/machnode.hpp"

    30 #include "opto/type.hpp"

    31 #include "runtime/biasedLocking.hpp"

    32 #include "runtime/rtmLocking.hpp"

    33 #include "runtime/deoptimization.hpp"

    34 #include "runtime/vframe.hpp"

    36 //------------------------------OptoRuntime------------------------------------

    37 // Opto compiler runtime routines

    38 //

    39 // These are all generated from Ideal graphs.  They are called with the

    40 // Java calling convention.  Internally they call C++.  They are made once at

    41 // startup time and Opto compiles calls to them later.

    42 // Things are broken up into quads: the signature they will be called with,

    43 // the address of the generated code, the corresponding C++ code and an

    44 // nmethod.

    46 // The signature (returned by "xxx_Type()") is used at startup time by the

    47 // Generator to make the generated code "xxx_Java".  Opto compiles calls

    48 // to the generated code "xxx_Java".  When the compiled code gets executed,

    49 // it calls the C++ code "xxx_C".  The generated nmethod is saved in the

    50 // CodeCache.  Exception handlers use the nmethod to get the callee-save

    51 // register OopMaps.

    52 class CallInfo;

    54 //

    55 // NamedCounters are tagged counters which can be used for profiling

    56 // code in various ways.  Currently they are used by the lock coarsening code

    57 //

    59 class NamedCounter : public CHeapObj<mtCompiler> {

    60 public:

    61     enum CounterTag {

    62     NoTag,

    63     LockCounter,

    64     EliminatedLockCounter,

    65     BiasedLockingCounter,

    66     RTMLockingCounter

    67   };

    69 private:

    70   const char *  _name;

    71   int           _count;

    72   CounterTag    _tag;

    73   NamedCounter* _next;

    75  public:

    76   NamedCounter(const char *n, CounterTag tag = NoTag):

    77     _name(n),

    78     _count(0),

    79     _next(NULL),

    80     _tag(tag) {}

    82   const char * name() const     { return _name; }

    83   int count() const             { return _count; }

    84   address addr()                { return (address)&_count; }

    85   CounterTag tag() const        { return _tag; }

    86   void set_tag(CounterTag tag)  { _tag = tag; }

    88   NamedCounter* next() const    { return _next; }

    89   void set_next(NamedCounter* next) {

    90     assert(_next == NULL || next == NULL, "already set");

    91     _next = next;

    92   }

    94 };

    96 class BiasedLockingNamedCounter : public NamedCounter {

    97  private:

    98   BiasedLockingCounters _counters;

   100  public:

   101   BiasedLockingNamedCounter(const char *n) :

   102     NamedCounter(n, BiasedLockingCounter), _counters() {}

   104   BiasedLockingCounters* counters() { return &_counters; }

   105 };

   108 class RTMLockingNamedCounter : public NamedCounter {

   109  private:

   110  RTMLockingCounters _counters;

   112  public:

   113   RTMLockingNamedCounter(const char *n) :

   114     NamedCounter(n, RTMLockingCounter), _counters() {}

   116   RTMLockingCounters* counters() { return &_counters; }

   117 };

   119 typedef const TypeFunc*(*TypeFunc_generator)();

   121 class OptoRuntime : public AllStatic {

   122   friend class Matcher;  // allow access to stub names

   124  private:

   125   // define stubs

   126   static address generate_stub(ciEnv* ci_env, TypeFunc_generator gen, address C_function, const char *name, int is_fancy_jump, bool pass_tls, bool save_arguments, bool return_pc);

   128   // References to generated stubs

   129   static address _new_instance_Java;

   130   static address _new_array_Java;

   131   static address _new_array_nozero_Java;

   132   static address _multianewarray2_Java;

   133   static address _multianewarray3_Java;

   134   static address _multianewarray4_Java;

   135   static address _multianewarray5_Java;

   136   static address _multianewarrayN_Java;

   137   static address _g1_wb_pre_Java;

   138   static address _g1_wb_post_Java;

   139   static address _vtable_must_compile_Java;

   140   static address _complete_monitor_locking_Java;

   141   static address _rethrow_Java;

   143   static address _slow_arraycopy_Java;

   144   static address _register_finalizer_Java;

   146 # ifdef ENABLE_ZAP_DEAD_LOCALS

   147   static address _zap_dead_Java_locals_Java;

   148   static address _zap_dead_native_locals_Java;

   149 # endif

   152   //

   153   // Implementation of runtime methods

   154   // =================================

   156   // Allocate storage for a Java instance.

   157   static void new_instance_C(Klass* instance_klass, JavaThread *thread);

   159   // Allocate storage for a objArray or typeArray

   160   static void new_array_C(Klass* array_klass, int len, JavaThread *thread);

   161   static void new_array_nozero_C(Klass* array_klass, int len, JavaThread *thread);

   163   // Post-slow-path-allocation, pre-initializing-stores step for

   164   // implementing ReduceInitialCardMarks

   165   static void new_store_pre_barrier(JavaThread* thread);

   167   // Allocate storage for a multi-dimensional arrays

   168   // Note: needs to be fixed for arbitrary number of dimensions

   169   static void multianewarray2_C(Klass* klass, int len1, int len2, JavaThread *thread);

   170   static void multianewarray3_C(Klass* klass, int len1, int len2, int len3, JavaThread *thread);

   171   static void multianewarray4_C(Klass* klass, int len1, int len2, int len3, int len4, JavaThread *thread);

   172   static void multianewarray5_C(Klass* klass, int len1, int len2, int len3, int len4, int len5, JavaThread *thread);

   173   static void multianewarrayN_C(Klass* klass, arrayOopDesc* dims, JavaThread *thread);

   174   static void g1_wb_pre_C(oopDesc* orig, JavaThread* thread);

   175   static void g1_wb_post_C(void* card_addr, JavaThread* thread);

   177 public:

   178   // Slow-path Locking and Unlocking

   179   static void complete_monitor_locking_C(oopDesc* obj, BasicLock* lock, JavaThread* thread);

   180   static void complete_monitor_unlocking_C(oopDesc* obj, BasicLock* lock);

   182 private:

   184   // Implicit exception support

   185   static void throw_null_exception_C(JavaThread* thread);

   187   // Exception handling

   188   static address handle_exception_C       (JavaThread* thread);

   189   static address handle_exception_C_helper(JavaThread* thread, nmethod*& nm);

   190   static address rethrow_C                (oopDesc* exception, JavaThread *thread, address return_pc );

   191   static void deoptimize_caller_frame     (JavaThread *thread);

   192   static void deoptimize_caller_frame     (JavaThread *thread, bool doit);

   193   static bool is_deoptimized_caller_frame (JavaThread *thread);

   195   // CodeBlob support

   196   // ===================================================================

   198   static ExceptionBlob*       _exception_blob;

   199   static void generate_exception_blob();

   201   static void register_finalizer(oopDesc* obj, JavaThread* thread);

   203   // zaping dead locals, either from Java frames or from native frames

   204 # ifdef ENABLE_ZAP_DEAD_LOCALS

   205   static void zap_dead_Java_locals_C(   JavaThread* thread);

   206   static void zap_dead_native_locals_C( JavaThread* thread);

   208   static void zap_dead_java_or_native_locals( JavaThread*, bool (*)(frame*));

   210  public:

   211    static int ZapDeadCompiledLocals_count;

   213 # endif

   216  public:

   218   static bool is_callee_saved_register(MachRegisterNumbers reg);

   220   // One time only generate runtime code stubs. Returns true

   221   // when runtime stubs have been generated successfully and

   222   // false otherwise.

   223   static bool generate(ciEnv* env);

   225   // Returns the name of a stub

   226   static const char* stub_name(address entry);

   228   // access to runtime stubs entry points for java code

   229   static address new_instance_Java()                     { return _new_instance_Java; }

   230   static address new_array_Java()                        { return _new_array_Java; }

   231   static address new_array_nozero_Java()                 { return _new_array_nozero_Java; }

   232   static address multianewarray2_Java()                  { return _multianewarray2_Java; }

   233   static address multianewarray3_Java()                  { return _multianewarray3_Java; }

   234   static address multianewarray4_Java()                  { return _multianewarray4_Java; }

   235   static address multianewarray5_Java()                  { return _multianewarray5_Java; }

   236   static address multianewarrayN_Java()                  { return _multianewarrayN_Java; }

   237   static address g1_wb_pre_Java()                        { return _g1_wb_pre_Java; }

   238   static address g1_wb_post_Java()                       { return _g1_wb_post_Java; }

   239   static address vtable_must_compile_stub()              { return _vtable_must_compile_Java; }

   240   static address complete_monitor_locking_Java()         { return _complete_monitor_locking_Java;   }

   242   static address slow_arraycopy_Java()                   { return _slow_arraycopy_Java; }

   243   static address register_finalizer_Java()               { return _register_finalizer_Java; }

   246 # ifdef ENABLE_ZAP_DEAD_LOCALS

   247   static address zap_dead_locals_stub(bool is_native)    { return is_native

   248                                                                   ? _zap_dead_native_locals_Java

   249                                                                   : _zap_dead_Java_locals_Java; }

   250   static MachNode* node_to_call_zap_dead_locals(Node* n, int block_num, bool is_native);

   251 # endif

   253   static ExceptionBlob*    exception_blob()                      { return _exception_blob; }

   255   // Leaf routines helping with method data update

   256   static void profile_receiver_type_C(DataLayout* data, oopDesc* receiver);

   258   // Implicit exception support

   259   static void throw_div0_exception_C      (JavaThread* thread);

   260   static void throw_stack_overflow_error_C(JavaThread* thread);

   262   // Exception handling

   263   static address rethrow_stub()             { return _rethrow_Java; }

   266   // Type functions

   267   // ======================================================

   269   static const TypeFunc* new_instance_Type(); // object allocation (slow case)

   270   static const TypeFunc* new_array_Type ();   // [a]newarray (slow case)

   271   static const TypeFunc* multianewarray_Type(int ndim); // multianewarray

   272   static const TypeFunc* multianewarray2_Type(); // multianewarray

   273   static const TypeFunc* multianewarray3_Type(); // multianewarray

   274   static const TypeFunc* multianewarray4_Type(); // multianewarray

   275   static const TypeFunc* multianewarray5_Type(); // multianewarray

   276   static const TypeFunc* multianewarrayN_Type(); // multianewarray

   277   static const TypeFunc* g1_wb_pre_Type();

   278   static const TypeFunc* g1_wb_post_Type();

   279   static const TypeFunc* complete_monitor_enter_Type();

   280   static const TypeFunc* complete_monitor_exit_Type();

   281   static const TypeFunc* uncommon_trap_Type();

   282   static const TypeFunc* athrow_Type();

   283   static const TypeFunc* rethrow_Type();

   284   static const TypeFunc* Math_D_D_Type();  // sin,cos & friends

   285   static const TypeFunc* Math_DD_D_Type(); // mod,pow & friends

   286   static const TypeFunc* modf_Type();

   287   static const TypeFunc* l2f_Type();

   288   static const TypeFunc* void_long_Type();

   290   static const TypeFunc* flush_windows_Type();

   292   // arraycopy routine types

   293   static const TypeFunc* fast_arraycopy_Type(); // bit-blasters

   294   static const TypeFunc* checkcast_arraycopy_Type();

   295   static const TypeFunc* generic_arraycopy_Type();

   296   static const TypeFunc* slow_arraycopy_Type();   // the full routine

   298   static const TypeFunc* array_fill_Type();

   300   static const TypeFunc* aescrypt_block_Type();

   301   static const TypeFunc* cipherBlockChaining_aescrypt_Type();

   303   static const TypeFunc* updateBytesCRC32_Type();

   305   // leaf on stack replacement interpreter accessor types

   306   static const TypeFunc* osr_end_Type();

   308   // leaf methodData routine types

   309   static const TypeFunc* profile_receiver_type_Type();

   311   // leaf on stack replacement interpreter accessor types

   312   static const TypeFunc* fetch_int_Type();

   313   static const TypeFunc* fetch_long_Type();

   314   static const TypeFunc* fetch_float_Type();

   315   static const TypeFunc* fetch_double_Type();

   316   static const TypeFunc* fetch_oop_Type();

   317   static const TypeFunc* fetch_monitor_Type();

   319   static const TypeFunc* register_finalizer_Type();

   321   // Dtrace support

   322   static const TypeFunc* dtrace_method_entry_exit_Type();

   323   static const TypeFunc* dtrace_object_alloc_Type();

   325 # ifdef ENABLE_ZAP_DEAD_LOCALS

   326   static const TypeFunc* zap_dead_locals_Type();

   327 # endif

   329  private:

   330  static NamedCounter * volatile _named_counters;

   332  public:

   333  // helper function which creates a named counter labeled with the

   334  // if they are available

   335  static NamedCounter* new_named_counter(JVMState* jvms, NamedCounter::CounterTag tag);

   337  // dumps all the named counters

   338  static void          print_named_counters();

   340 };

   342 #endif // SHARE_VM_OPTO_RUNTIME_HPP

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

src/share/vm/opto/runtime.hpp@69ea58782b1a

src/share/vm/opto/runtime.hpp