jdk8-mips64-public/hotspot: src/share/vm/opto/runtime.cpp@c124e2e7463e

     1 /*

     2  * Copyright (c) 1998, 2011, 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 #include "precompiled.hpp"

    26 #include "classfile/systemDictionary.hpp"

    27 #include "classfile/vmSymbols.hpp"

    28 #include "code/compiledIC.hpp"

    29 #include "code/icBuffer.hpp"

    30 #include "code/nmethod.hpp"

    31 #include "code/pcDesc.hpp"

    32 #include "code/scopeDesc.hpp"

    33 #include "code/vtableStubs.hpp"

    34 #include "compiler/compileBroker.hpp"

    35 #include "compiler/compilerOracle.hpp"

    36 #include "compiler/oopMap.hpp"

    37 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp"

    38 #include "gc_implementation/g1/heapRegion.hpp"

    39 #include "gc_interface/collectedHeap.hpp"

    40 #include "interpreter/bytecode.hpp"

    41 #include "interpreter/interpreter.hpp"

    42 #include "interpreter/linkResolver.hpp"

    43 #include "memory/barrierSet.hpp"

    44 #include "memory/gcLocker.inline.hpp"

    45 #include "memory/oopFactory.hpp"

    46 #include "oops/objArrayKlass.hpp"

    47 #include "oops/oop.inline.hpp"

    48 #include "opto/addnode.hpp"

    49 #include "opto/callnode.hpp"

    50 #include "opto/cfgnode.hpp"

    51 #include "opto/connode.hpp"

    52 #include "opto/graphKit.hpp"

    53 #include "opto/machnode.hpp"

    54 #include "opto/matcher.hpp"

    55 #include "opto/memnode.hpp"

    56 #include "opto/mulnode.hpp"

    57 #include "opto/runtime.hpp"

    58 #include "opto/subnode.hpp"

    59 #include "runtime/fprofiler.hpp"

    60 #include "runtime/handles.inline.hpp"

    61 #include "runtime/interfaceSupport.hpp"

    62 #include "runtime/javaCalls.hpp"

    63 #include "runtime/sharedRuntime.hpp"

    64 #include "runtime/signature.hpp"

    65 #include "runtime/threadCritical.hpp"

    66 #include "runtime/vframe.hpp"

    67 #include "runtime/vframeArray.hpp"

    68 #include "runtime/vframe_hp.hpp"

    69 #include "utilities/copy.hpp"

    70 #include "utilities/preserveException.hpp"

    71 #ifdef TARGET_ARCH_MODEL_x86_32

    72 # include "adfiles/ad_x86_32.hpp"

    73 #endif

    74 #ifdef TARGET_ARCH_MODEL_x86_64

    75 # include "adfiles/ad_x86_64.hpp"

    76 #endif

    77 #ifdef TARGET_ARCH_MODEL_sparc

    78 # include "adfiles/ad_sparc.hpp"

    79 #endif

    80 #ifdef TARGET_ARCH_MODEL_zero

    81 # include "adfiles/ad_zero.hpp"

    82 #endif

    83 #ifdef TARGET_ARCH_MODEL_arm

    84 # include "adfiles/ad_arm.hpp"

    85 #endif

    86 #ifdef TARGET_ARCH_MODEL_ppc

    87 # include "adfiles/ad_ppc.hpp"

    88 #endif

    91 // For debugging purposes:

    92 //  To force FullGCALot inside a runtime function, add the following two lines

    93 //

    94 //  Universe::release_fullgc_alot_dummy();

    95 //  MarkSweep::invoke(0, "Debugging");

    96 //

    97 // At command line specify the parameters: -XX:+FullGCALot -XX:FullGCALotStart=100000000

   102 // Compiled code entry points

   103 address OptoRuntime::_new_instance_Java                           = NULL;

   104 address OptoRuntime::_new_array_Java                              = NULL;

   105 address OptoRuntime::_multianewarray2_Java                        = NULL;

   106 address OptoRuntime::_multianewarray3_Java                        = NULL;

   107 address OptoRuntime::_multianewarray4_Java                        = NULL;

   108 address OptoRuntime::_multianewarray5_Java                        = NULL;

   109 address OptoRuntime::_multianewarrayN_Java                        = NULL;

   110 address OptoRuntime::_g1_wb_pre_Java                              = NULL;

   111 address OptoRuntime::_g1_wb_post_Java                             = NULL;

   112 address OptoRuntime::_vtable_must_compile_Java                    = NULL;

   113 address OptoRuntime::_complete_monitor_locking_Java               = NULL;

   114 address OptoRuntime::_rethrow_Java                                = NULL;

   116 address OptoRuntime::_slow_arraycopy_Java                         = NULL;

   117 address OptoRuntime::_register_finalizer_Java                     = NULL;

   119 # ifdef ENABLE_ZAP_DEAD_LOCALS

   120 address OptoRuntime::_zap_dead_Java_locals_Java                   = NULL;

   121 address OptoRuntime::_zap_dead_native_locals_Java                 = NULL;

   122 # endif

   124 ExceptionBlob* OptoRuntime::_exception_blob;

   126 // This should be called in an assertion at the start of OptoRuntime routines

   127 // which are entered from compiled code (all of them)

   128 #ifndef PRODUCT

   129 static bool check_compiled_frame(JavaThread* thread) {

   130   assert(thread->last_frame().is_runtime_frame(), "cannot call runtime directly from compiled code");

   131 #ifdef ASSERT

   132   RegisterMap map(thread, false);

   133   frame caller = thread->last_frame().sender(&map);

   134   assert(caller.is_compiled_frame(), "not being called from compiled like code");

   135 #endif  /* ASSERT */

   136   return true;

   137 }

   138 #endif

   141 #define gen(env, var, type_func_gen, c_func, fancy_jump, pass_tls, save_arg_regs, return_pc) \

   142   var = generate_stub(env, type_func_gen, CAST_FROM_FN_PTR(address, c_func), #var, fancy_jump, pass_tls, save_arg_regs, return_pc)

   144 void OptoRuntime::generate(ciEnv* env) {

   146   generate_exception_blob();

   148   // Note: tls: Means fetching the return oop out of the thread-local storage

   149   //

   150   //   variable/name                       type-function-gen              , runtime method                  ,fncy_jp, tls,save_args,retpc

   151   // -------------------------------------------------------------------------------------------------------------------------------

   152   gen(env, _new_instance_Java              , new_instance_Type            , new_instance_C                  ,    0 , true , false, false);

   153   gen(env, _new_array_Java                 , new_array_Type               , new_array_C                     ,    0 , true , false, false);

   154   gen(env, _multianewarray2_Java           , multianewarray2_Type         , multianewarray2_C               ,    0 , true , false, false);

   155   gen(env, _multianewarray3_Java           , multianewarray3_Type         , multianewarray3_C               ,    0 , true , false, false);

   156   gen(env, _multianewarray4_Java           , multianewarray4_Type         , multianewarray4_C               ,    0 , true , false, false);

   157   gen(env, _multianewarray5_Java           , multianewarray5_Type         , multianewarray5_C               ,    0 , true , false, false);

   158   gen(env, _multianewarrayN_Java           , multianewarrayN_Type         , multianewarrayN_C               ,    0 , true , false, false);

   159   gen(env, _g1_wb_pre_Java                 , g1_wb_pre_Type               , SharedRuntime::g1_wb_pre        ,    0 , false, false, false);

   160   gen(env, _g1_wb_post_Java                , g1_wb_post_Type              , SharedRuntime::g1_wb_post       ,    0 , false, false, false);

   161   gen(env, _complete_monitor_locking_Java  , complete_monitor_enter_Type  , SharedRuntime::complete_monitor_locking_C      ,    0 , false, false, false);

   162   gen(env, _rethrow_Java                   , rethrow_Type                 , rethrow_C                       ,    2 , true , false, true );

   164   gen(env, _slow_arraycopy_Java            , slow_arraycopy_Type          , SharedRuntime::slow_arraycopy_C ,    0 , false, false, false);

   165   gen(env, _register_finalizer_Java        , register_finalizer_Type      , register_finalizer              ,    0 , false, false, false);

   167 # ifdef ENABLE_ZAP_DEAD_LOCALS

   168   gen(env, _zap_dead_Java_locals_Java      , zap_dead_locals_Type         , zap_dead_Java_locals_C          ,    0 , false, true , false );

   169   gen(env, _zap_dead_native_locals_Java    , zap_dead_locals_Type         , zap_dead_native_locals_C        ,    0 , false, true , false );

   170 # endif

   172 }

   174 #undef gen

   177 // Helper method to do generation of RunTimeStub's

   178 address OptoRuntime::generate_stub( ciEnv* env,

   179                                     TypeFunc_generator gen, address C_function,

   180                                     const char *name, int is_fancy_jump,

   181                                     bool pass_tls,

   182                                     bool save_argument_registers,

   183                                     bool return_pc ) {

   184   ResourceMark rm;

   185   Compile C( env, gen, C_function, name, is_fancy_jump, pass_tls, save_argument_registers, return_pc );

   186   return  C.stub_entry_point();

   187 }

   189 const char* OptoRuntime::stub_name(address entry) {

   190 #ifndef PRODUCT

   191   CodeBlob* cb = CodeCache::find_blob(entry);

   192   RuntimeStub* rs =(RuntimeStub *)cb;

   193   assert(rs != NULL && rs->is_runtime_stub(), "not a runtime stub");

   194   return rs->name();

   195 #else

   196   // Fast implementation for product mode (maybe it should be inlined too)

   197   return "runtime stub";

   198 #endif

   199 }

   202 //=============================================================================

   203 // Opto compiler runtime routines

   204 //=============================================================================

   207 //=============================allocation======================================

   208 // We failed the fast-path allocation.  Now we need to do a scavenge or GC

   209 // and try allocation again.

   211 void OptoRuntime::new_store_pre_barrier(JavaThread* thread) {

   212   // After any safepoint, just before going back to compiled code,

   213   // we inform the GC that we will be doing initializing writes to

   214   // this object in the future without emitting card-marks, so

   215   // GC may take any compensating steps.

   216   // NOTE: Keep this code consistent with GraphKit::store_barrier.

   218   oop new_obj = thread->vm_result();

   219   if (new_obj == NULL)  return;

   221   assert(Universe::heap()->can_elide_tlab_store_barriers(),

   222          "compiler must check this first");

   223   // GC may decide to give back a safer copy of new_obj.

   224   new_obj = Universe::heap()->new_store_pre_barrier(thread, new_obj);

   225   thread->set_vm_result(new_obj);

   226 }

   228 // object allocation

   229 JRT_BLOCK_ENTRY(void, OptoRuntime::new_instance_C(klassOopDesc* klass, JavaThread* thread))

   230   JRT_BLOCK;

   231 #ifndef PRODUCT

   232   SharedRuntime::_new_instance_ctr++;         // new instance requires GC

   233 #endif

   234   assert(check_compiled_frame(thread), "incorrect caller");

   236   // These checks are cheap to make and support reflective allocation.

   237   int lh = Klass::cast(klass)->layout_helper();

   238   if (Klass::layout_helper_needs_slow_path(lh)

   239       || !instanceKlass::cast(klass)->is_initialized()) {

   240     KlassHandle kh(THREAD, klass);

   241     kh->check_valid_for_instantiation(false, THREAD);

   242     if (!HAS_PENDING_EXCEPTION) {

   243       instanceKlass::cast(kh())->initialize(THREAD);

   244     }

   245     if (!HAS_PENDING_EXCEPTION) {

   246       klass = kh();

   247     } else {

   248       klass = NULL;

   249     }

   250   }

   252   if (klass != NULL) {

   253     // Scavenge and allocate an instance.

   254     oop result = instanceKlass::cast(klass)->allocate_instance(THREAD);

   255     thread->set_vm_result(result);

   257     // Pass oops back through thread local storage.  Our apparent type to Java

   258     // is that we return an oop, but we can block on exit from this routine and

   259     // a GC can trash the oop in C's return register.  The generated stub will

   260     // fetch the oop from TLS after any possible GC.

   261   }

   263   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   264   JRT_BLOCK_END;

   266   if (GraphKit::use_ReduceInitialCardMarks()) {

   267     // inform GC that we won't do card marks for initializing writes.

   268     new_store_pre_barrier(thread);

   269   }

   270 JRT_END

   273 // array allocation

   274 JRT_BLOCK_ENTRY(void, OptoRuntime::new_array_C(klassOopDesc* array_type, int len, JavaThread *thread))

   275   JRT_BLOCK;

   276 #ifndef PRODUCT

   277   SharedRuntime::_new_array_ctr++;            // new array requires GC

   278 #endif

   279   assert(check_compiled_frame(thread), "incorrect caller");

   281   // Scavenge and allocate an instance.

   282   oop result;

   284   if (Klass::cast(array_type)->oop_is_typeArray()) {

   285     // The oopFactory likes to work with the element type.

   286     // (We could bypass the oopFactory, since it doesn't add much value.)

   287     BasicType elem_type = typeArrayKlass::cast(array_type)->element_type();

   288     result = oopFactory::new_typeArray(elem_type, len, THREAD);

   289   } else {

   290     // Although the oopFactory likes to work with the elem_type,

   291     // the compiler prefers the array_type, since it must already have

   292     // that latter value in hand for the fast path.

   293     klassOopDesc* elem_type = objArrayKlass::cast(array_type)->element_klass();

   294     result = oopFactory::new_objArray(elem_type, len, THREAD);

   295   }

   297   // Pass oops back through thread local storage.  Our apparent type to Java

   298   // is that we return an oop, but we can block on exit from this routine and

   299   // a GC can trash the oop in C's return register.  The generated stub will

   300   // fetch the oop from TLS after any possible GC.

   301   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   302   thread->set_vm_result(result);

   303   JRT_BLOCK_END;

   305   if (GraphKit::use_ReduceInitialCardMarks()) {

   306     // inform GC that we won't do card marks for initializing writes.

   307     new_store_pre_barrier(thread);

   308   }

   309 JRT_END

   311 // Note: multianewarray for one dimension is handled inline by GraphKit::new_array.

   313 // multianewarray for 2 dimensions

   314 JRT_ENTRY(void, OptoRuntime::multianewarray2_C(klassOopDesc* elem_type, int len1, int len2, JavaThread *thread))

   315 #ifndef PRODUCT

   316   SharedRuntime::_multi2_ctr++;                // multianewarray for 1 dimension

   317 #endif

   318   assert(check_compiled_frame(thread), "incorrect caller");

   319   assert(oop(elem_type)->is_klass(), "not a class");

   320   jint dims[2];

   321   dims[0] = len1;

   322   dims[1] = len2;

   323   oop obj = arrayKlass::cast(elem_type)->multi_allocate(2, dims, THREAD);

   324   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   325   thread->set_vm_result(obj);

   326 JRT_END

   328 // multianewarray for 3 dimensions

   329 JRT_ENTRY(void, OptoRuntime::multianewarray3_C(klassOopDesc* elem_type, int len1, int len2, int len3, JavaThread *thread))

   330 #ifndef PRODUCT

   331   SharedRuntime::_multi3_ctr++;                // multianewarray for 1 dimension

   332 #endif

   333   assert(check_compiled_frame(thread), "incorrect caller");

   334   assert(oop(elem_type)->is_klass(), "not a class");

   335   jint dims[3];

   336   dims[0] = len1;

   337   dims[1] = len2;

   338   dims[2] = len3;

   339   oop obj = arrayKlass::cast(elem_type)->multi_allocate(3, dims, THREAD);

   340   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   341   thread->set_vm_result(obj);

   342 JRT_END

   344 // multianewarray for 4 dimensions

   345 JRT_ENTRY(void, OptoRuntime::multianewarray4_C(klassOopDesc* elem_type, int len1, int len2, int len3, int len4, JavaThread *thread))

   346 #ifndef PRODUCT

   347   SharedRuntime::_multi4_ctr++;                // multianewarray for 1 dimension

   348 #endif

   349   assert(check_compiled_frame(thread), "incorrect caller");

   350   assert(oop(elem_type)->is_klass(), "not a class");

   351   jint dims[4];

   352   dims[0] = len1;

   353   dims[1] = len2;

   354   dims[2] = len3;

   355   dims[3] = len4;

   356   oop obj = arrayKlass::cast(elem_type)->multi_allocate(4, dims, THREAD);

   357   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   358   thread->set_vm_result(obj);

   359 JRT_END

   361 // multianewarray for 5 dimensions

   362 JRT_ENTRY(void, OptoRuntime::multianewarray5_C(klassOopDesc* elem_type, int len1, int len2, int len3, int len4, int len5, JavaThread *thread))

   363 #ifndef PRODUCT

   364   SharedRuntime::_multi5_ctr++;                // multianewarray for 1 dimension

   365 #endif

   366   assert(check_compiled_frame(thread), "incorrect caller");

   367   assert(oop(elem_type)->is_klass(), "not a class");

   368   jint dims[5];

   369   dims[0] = len1;

   370   dims[1] = len2;

   371   dims[2] = len3;

   372   dims[3] = len4;

   373   dims[4] = len5;

   374   oop obj = arrayKlass::cast(elem_type)->multi_allocate(5, dims, THREAD);

   375   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   376   thread->set_vm_result(obj);

   377 JRT_END

   379 JRT_ENTRY(void, OptoRuntime::multianewarrayN_C(klassOopDesc* elem_type, arrayOopDesc* dims, JavaThread *thread))

   380   assert(check_compiled_frame(thread), "incorrect caller");

   381   assert(oop(elem_type)->is_klass(), "not a class");

   382   assert(oop(dims)->is_typeArray(), "not an array");

   384   ResourceMark rm;

   385   jint len = dims->length();

   386   assert(len > 0, "Dimensions array should contain data");

   387   jint *j_dims = typeArrayOop(dims)->int_at_addr(0);

   388   jint *c_dims = NEW_RESOURCE_ARRAY(jint, len);

   389   Copy::conjoint_jints_atomic(j_dims, c_dims, len);

   391   oop obj = arrayKlass::cast(elem_type)->multi_allocate(len, c_dims, THREAD);

   392   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   393   thread->set_vm_result(obj);

   394 JRT_END

   397 const TypeFunc *OptoRuntime::new_instance_Type() {

   398   // create input type (domain)

   399   const Type **fields = TypeTuple::fields(1);

   400   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated

   401   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);

   403   // create result type (range)

   404   fields = TypeTuple::fields(1);

   405   fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop

   407   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);

   409   return TypeFunc::make(domain, range);

   410 }

   413 const TypeFunc *OptoRuntime::athrow_Type() {

   414   // create input type (domain)

   415   const Type **fields = TypeTuple::fields(1);

   416   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated

   417   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);

   419   // create result type (range)

   420   fields = TypeTuple::fields(0);

   422   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields);

   424   return TypeFunc::make(domain, range);

   425 }

   428 const TypeFunc *OptoRuntime::new_array_Type() {

   429   // create input type (domain)

   430   const Type **fields = TypeTuple::fields(2);

   431   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL;   // element klass

   432   fields[TypeFunc::Parms+1] = TypeInt::INT;       // array size

   433   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);

   435   // create result type (range)

   436   fields = TypeTuple::fields(1);

   437   fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop

   439   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);

   441   return TypeFunc::make(domain, range);

   442 }

   444 const TypeFunc *OptoRuntime::multianewarray_Type(int ndim) {

   445   // create input type (domain)

   446   const int nargs = ndim + 1;

   447   const Type **fields = TypeTuple::fields(nargs);

   448   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL;   // element klass

   449   for( int i = 1; i < nargs; i++ )

   450     fields[TypeFunc::Parms + i] = TypeInt::INT;       // array size

   451   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+nargs, fields);

   453   // create result type (range)

   454   fields = TypeTuple::fields(1);

   455   fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop

   456   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);

   458   return TypeFunc::make(domain, range);

   459 }

   461 const TypeFunc *OptoRuntime::multianewarray2_Type() {

   462   return multianewarray_Type(2);

   463 }

   465 const TypeFunc *OptoRuntime::multianewarray3_Type() {

   466   return multianewarray_Type(3);

   467 }

   469 const TypeFunc *OptoRuntime::multianewarray4_Type() {

   470   return multianewarray_Type(4);

   471 }

   473 const TypeFunc *OptoRuntime::multianewarray5_Type() {

   474   return multianewarray_Type(5);

   475 }

   477 const TypeFunc *OptoRuntime::multianewarrayN_Type() {

   478   // create input type (domain)

   479   const Type **fields = TypeTuple::fields(2);

   480   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL;   // element klass

   481   fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL;   // array of dim sizes

   482   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);

   484   // create result type (range)

   485   fields = TypeTuple::fields(1);

   486   fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop

   487   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);

   489   return TypeFunc::make(domain, range);

   490 }

   492 const TypeFunc *OptoRuntime::g1_wb_pre_Type() {

   493   const Type **fields = TypeTuple::fields(2);

   494   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // original field value

   495   fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread

   496   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);

   498   // create result type (range)

   499   fields = TypeTuple::fields(0);

   500   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields);

   502   return TypeFunc::make(domain, range);

   503 }

   505 const TypeFunc *OptoRuntime::g1_wb_post_Type() {

   507   const Type **fields = TypeTuple::fields(2);

   508   fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL;  // Card addr

   509   fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL;  // thread

   510   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);

   512   // create result type (range)

   513   fields = TypeTuple::fields(0);

   514   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);

   516   return TypeFunc::make(domain, range);

   517 }

   519 const TypeFunc *OptoRuntime::uncommon_trap_Type() {

   520   // create input type (domain)

   521   const Type **fields = TypeTuple::fields(1);

   522   // Symbol* name of class to be loaded

   523   fields[TypeFunc::Parms+0] = TypeInt::INT;

   524   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);

   526   // create result type (range)

   527   fields = TypeTuple::fields(0);

   528   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields);

   530   return TypeFunc::make(domain, range);

   531 }

   533 # ifdef ENABLE_ZAP_DEAD_LOCALS

   534 // Type used for stub generation for zap_dead_locals.

   535 // No inputs or outputs

   536 const TypeFunc *OptoRuntime::zap_dead_locals_Type() {

   537   // create input type (domain)

   538   const Type **fields = TypeTuple::fields(0);

   539   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms,fields);

   541   // create result type (range)

   542   fields = TypeTuple::fields(0);

   543   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms,fields);

   545   return TypeFunc::make(domain,range);

   546 }

   547 # endif

   550 //-----------------------------------------------------------------------------

   551 // Monitor Handling

   552 const TypeFunc *OptoRuntime::complete_monitor_enter_Type() {

   553   // create input type (domain)

   554   const Type **fields = TypeTuple::fields(2);

   555   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL;  // Object to be Locked

   556   fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM;   // Address of stack location for lock

   557   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);

   559   // create result type (range)

   560   fields = TypeTuple::fields(0);

   562   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);

   564   return TypeFunc::make(domain,range);

   565 }

   568 //-----------------------------------------------------------------------------

   569 const TypeFunc *OptoRuntime::complete_monitor_exit_Type() {

   570   // create input type (domain)

   571   const Type **fields = TypeTuple::fields(2);

   572   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL;  // Object to be Locked

   573   fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM;   // Address of stack location for lock

   574   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);

   576   // create result type (range)

   577   fields = TypeTuple::fields(0);

   579   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);

   581   return TypeFunc::make(domain,range);

   582 }

   584 const TypeFunc* OptoRuntime::flush_windows_Type() {

   585   // create input type (domain)

   586   const Type** fields = TypeTuple::fields(1);

   587   fields[TypeFunc::Parms+0] = NULL; // void

   588   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms, fields);

   590   // create result type

   591   fields = TypeTuple::fields(1);

   592   fields[TypeFunc::Parms+0] = NULL; // void

   593   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);

   595   return TypeFunc::make(domain, range);

   596 }

   598 const TypeFunc* OptoRuntime::l2f_Type() {

   599   // create input type (domain)

   600   const Type **fields = TypeTuple::fields(2);

   601   fields[TypeFunc::Parms+0] = TypeLong::LONG;

   602   fields[TypeFunc::Parms+1] = Type::HALF;

   603   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);

   605   // create result type (range)

   606   fields = TypeTuple::fields(1);

   607   fields[TypeFunc::Parms+0] = Type::FLOAT;

   608   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);

   610   return TypeFunc::make(domain, range);

   611 }

   613 const TypeFunc* OptoRuntime::modf_Type() {

   614   const Type **fields = TypeTuple::fields(2);

   615   fields[TypeFunc::Parms+0] = Type::FLOAT;

   616   fields[TypeFunc::Parms+1] = Type::FLOAT;

   617   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);

   619   // create result type (range)

   620   fields = TypeTuple::fields(1);

   621   fields[TypeFunc::Parms+0] = Type::FLOAT;

   623   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);

   625   return TypeFunc::make(domain, range);

   626 }

   628 const TypeFunc *OptoRuntime::Math_D_D_Type() {

   629   // create input type (domain)

   630   const Type **fields = TypeTuple::fields(2);

   631   // Symbol* name of class to be loaded

   632   fields[TypeFunc::Parms+0] = Type::DOUBLE;

   633   fields[TypeFunc::Parms+1] = Type::HALF;

   634   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);

   636   // create result type (range)

   637   fields = TypeTuple::fields(2);

   638   fields[TypeFunc::Parms+0] = Type::DOUBLE;

   639   fields[TypeFunc::Parms+1] = Type::HALF;

   640   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields);

   642   return TypeFunc::make(domain, range);

   643 }

   645 const TypeFunc* OptoRuntime::Math_DD_D_Type() {

   646   const Type **fields = TypeTuple::fields(4);

   647   fields[TypeFunc::Parms+0] = Type::DOUBLE;

   648   fields[TypeFunc::Parms+1] = Type::HALF;

   649   fields[TypeFunc::Parms+2] = Type::DOUBLE;

   650   fields[TypeFunc::Parms+3] = Type::HALF;

   651   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+4, fields);

   653   // create result type (range)

   654   fields = TypeTuple::fields(2);

   655   fields[TypeFunc::Parms+0] = Type::DOUBLE;

   656   fields[TypeFunc::Parms+1] = Type::HALF;

   657   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields);

   659   return TypeFunc::make(domain, range);

   660 }

   662 //-------------- currentTimeMillis

   664 const TypeFunc* OptoRuntime::current_time_millis_Type() {

   665   // create input type (domain)

   666   const Type **fields = TypeTuple::fields(0);

   667   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+0, fields);

   669   // create result type (range)

   670   fields = TypeTuple::fields(2);

   671   fields[TypeFunc::Parms+0] = TypeLong::LONG;

   672   fields[TypeFunc::Parms+1] = Type::HALF;

   673   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields);

   675   return TypeFunc::make(domain, range);

   676 }

   678 // arraycopy stub variations:

   679 enum ArrayCopyType {

   680   ac_fast,                      // void(ptr, ptr, size_t)

   681   ac_checkcast,                 //  int(ptr, ptr, size_t, size_t, ptr)

   682   ac_slow,                      // void(ptr, int, ptr, int, int)

   683   ac_generic                    //  int(ptr, int, ptr, int, int)

   684 };

   686 static const TypeFunc* make_arraycopy_Type(ArrayCopyType act) {

   687   // create input type (domain)

   688   int num_args      = (act == ac_fast ? 3 : 5);

   689   int num_size_args = (act == ac_fast ? 1 : act == ac_checkcast ? 2 : 0);

   690   int argcnt = num_args;

   691   LP64_ONLY(argcnt += num_size_args); // halfwords for lengths

   692   const Type** fields = TypeTuple::fields(argcnt);

   693   int argp = TypeFunc::Parms;

   694   fields[argp++] = TypePtr::NOTNULL;    // src

   695   if (num_size_args == 0) {

   696     fields[argp++] = TypeInt::INT;      // src_pos

   697   }

   698   fields[argp++] = TypePtr::NOTNULL;    // dest

   699   if (num_size_args == 0) {

   700     fields[argp++] = TypeInt::INT;      // dest_pos

   701     fields[argp++] = TypeInt::INT;      // length

   702   }

   703   while (num_size_args-- > 0) {

   704     fields[argp++] = TypeX_X;               // size in whatevers (size_t)

   705     LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length

   706   }

   707   if (act == ac_checkcast) {

   708     fields[argp++] = TypePtr::NOTNULL;  // super_klass

   709   }

   710   assert(argp == TypeFunc::Parms+argcnt, "correct decoding of act");

   711   const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);

   713   // create result type if needed

   714   int retcnt = (act == ac_checkcast || act == ac_generic ? 1 : 0);

   715   fields = TypeTuple::fields(1);

   716   if (retcnt == 0)

   717     fields[TypeFunc::Parms+0] = NULL; // void

   718   else

   719     fields[TypeFunc::Parms+0] = TypeInt::INT; // status result, if needed

   720   const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+retcnt, fields);

   721   return TypeFunc::make(domain, range);

   722 }

   724 const TypeFunc* OptoRuntime::fast_arraycopy_Type() {

   725   // This signature is simple:  Two base pointers and a size_t.

   726   return make_arraycopy_Type(ac_fast);

   727 }

   729 const TypeFunc* OptoRuntime::checkcast_arraycopy_Type() {

   730   // An extension of fast_arraycopy_Type which adds type checking.

   731   return make_arraycopy_Type(ac_checkcast);

   732 }

   734 const TypeFunc* OptoRuntime::slow_arraycopy_Type() {

   735   // This signature is exactly the same as System.arraycopy.

   736   // There are no intptr_t (int/long) arguments.

   737   return make_arraycopy_Type(ac_slow);

   738 }

   740 const TypeFunc* OptoRuntime::generic_arraycopy_Type() {

   741   // This signature is like System.arraycopy, except that it returns status.

   742   return make_arraycopy_Type(ac_generic);

   743 }

   746 const TypeFunc* OptoRuntime::array_fill_Type() {

   747   // create input type (domain): pointer, int, size_t

   748   const Type** fields = TypeTuple::fields(3 LP64_ONLY( + 1));

   749   int argp = TypeFunc::Parms;

   750   fields[argp++] = TypePtr::NOTNULL;

   751   fields[argp++] = TypeInt::INT;

   752   fields[argp++] = TypeX_X;               // size in whatevers (size_t)

   753   LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length

   754   const TypeTuple *domain = TypeTuple::make(argp, fields);

   756   // create result type

   757   fields = TypeTuple::fields(1);

   758   fields[TypeFunc::Parms+0] = NULL; // void

   759   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);

   761   return TypeFunc::make(domain, range);

   762 }

   764 //------------- Interpreter state access for on stack replacement

   765 const TypeFunc* OptoRuntime::osr_end_Type() {

   766   // create input type (domain)

   767   const Type **fields = TypeTuple::fields(1);

   768   fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // OSR temp buf

   769   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);

   771   // create result type

   772   fields = TypeTuple::fields(1);

   773   // fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // locked oop

   774   fields[TypeFunc::Parms+0] = NULL; // void

   775   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);

   776   return TypeFunc::make(domain, range);

   777 }

   779 //-------------- methodData update helpers

   781 const TypeFunc* OptoRuntime::profile_receiver_type_Type() {

   782   // create input type (domain)

   783   const Type **fields = TypeTuple::fields(2);

   784   fields[TypeFunc::Parms+0] = TypeAryPtr::NOTNULL;    // methodData pointer

   785   fields[TypeFunc::Parms+1] = TypeInstPtr::BOTTOM;    // receiver oop

   786   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);

   788   // create result type

   789   fields = TypeTuple::fields(1);

   790   fields[TypeFunc::Parms+0] = NULL; // void

   791   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);

   792   return TypeFunc::make(domain,range);

   793 }

   795 JRT_LEAF(void, OptoRuntime::profile_receiver_type_C(DataLayout* data, oopDesc* receiver))

   796   if (receiver == NULL) return;

   797   klassOop receiver_klass = receiver->klass();

   799   intptr_t* mdp = ((intptr_t*)(data)) + DataLayout::header_size_in_cells();

   800   int empty_row = -1;           // free row, if any is encountered

   802   // ReceiverTypeData* vc = new ReceiverTypeData(mdp);

   803   for (uint row = 0; row < ReceiverTypeData::row_limit(); row++) {

   804     // if (vc->receiver(row) == receiver_klass)

   805     int receiver_off = ReceiverTypeData::receiver_cell_index(row);

   806     intptr_t row_recv = *(mdp + receiver_off);

   807     if (row_recv == (intptr_t) receiver_klass) {

   808       // vc->set_receiver_count(row, vc->receiver_count(row) + DataLayout::counter_increment);

   809       int count_off = ReceiverTypeData::receiver_count_cell_index(row);

   810       *(mdp + count_off) += DataLayout::counter_increment;

   811       return;

   812     } else if (row_recv == 0) {

   813       // else if (vc->receiver(row) == NULL)

   814       empty_row = (int) row;

   815     }

   816   }

   818   if (empty_row != -1) {

   819     int receiver_off = ReceiverTypeData::receiver_cell_index(empty_row);

   820     // vc->set_receiver(empty_row, receiver_klass);

   821     *(mdp + receiver_off) = (intptr_t) receiver_klass;

   822     // vc->set_receiver_count(empty_row, DataLayout::counter_increment);

   823     int count_off = ReceiverTypeData::receiver_count_cell_index(empty_row);

   824     *(mdp + count_off) = DataLayout::counter_increment;

   825   } else {

   826     // Receiver did not match any saved receiver and there is no empty row for it.

   827     // Increment total counter to indicate polymorphic case.

   828     intptr_t* count_p = (intptr_t*)(((byte*)(data)) + in_bytes(CounterData::count_offset()));

   829     *count_p += DataLayout::counter_increment;

   830   }

   831 JRT_END

   833 //-----------------------------------------------------------------------------

   834 // implicit exception support.

   836 static void report_null_exception_in_code_cache(address exception_pc) {

   837   ResourceMark rm;

   838   CodeBlob* n = CodeCache::find_blob(exception_pc);

   839   if (n != NULL) {

   840     tty->print_cr("#");

   841     tty->print_cr("# HotSpot Runtime Error, null exception in generated code");

   842     tty->print_cr("#");

   843     tty->print_cr("# pc where exception happened = " INTPTR_FORMAT, exception_pc);

   845     if (n->is_nmethod()) {

   846       methodOop method = ((nmethod*)n)->method();

   847       tty->print_cr("# Method where it happened %s.%s ", Klass::cast(method->method_holder())->name()->as_C_string(), method->name()->as_C_string());

   848       tty->print_cr("#");

   849       if (ShowMessageBoxOnError && UpdateHotSpotCompilerFileOnError) {

   850         const char* title    = "HotSpot Runtime Error";

   851         const char* question = "Do you want to exclude compilation of this method in future runs?";

   852         if (os::message_box(title, question)) {

   853           CompilerOracle::append_comment_to_file("");

   854           CompilerOracle::append_comment_to_file("Null exception in compiled code resulted in the following exclude");

   855           CompilerOracle::append_comment_to_file("");

   856           CompilerOracle::append_exclude_to_file(method);

   857           tty->print_cr("#");

   858           tty->print_cr("# %s has been updated to exclude the specified method", CompileCommandFile);

   859           tty->print_cr("#");

   860         }

   861       }

   862       fatal("Implicit null exception happened in compiled method");

   863     } else {

   864       n->print();

   865       fatal("Implicit null exception happened in generated stub");

   866     }

   867   }

   868   fatal("Implicit null exception at wrong place");

   869 }

   872 //-------------------------------------------------------------------------------------

   873 // register policy

   875 bool OptoRuntime::is_callee_saved_register(MachRegisterNumbers reg) {

   876   assert(reg >= 0 && reg < _last_Mach_Reg, "must be a machine register");

   877   switch (register_save_policy[reg]) {

   878     case 'C': return false; //SOC

   879     case 'E': return true ; //SOE

   880     case 'N': return false; //NS

   881     case 'A': return false; //AS

   882   }

   883   ShouldNotReachHere();

   884   return false;

   885 }

   887 //-----------------------------------------------------------------------

   888 // Exceptions

   889 //

   891 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) PRODUCT_RETURN;

   893 // The method is an entry that is always called by a C++ method not

   894 // directly from compiled code. Compiled code will call the C++ method following.

   895 // We can't allow async exception to be installed during  exception processing.

   896 JRT_ENTRY_NO_ASYNC(address, OptoRuntime::handle_exception_C_helper(JavaThread* thread, nmethod* &nm))

   898   // Do not confuse exception_oop with pending_exception. The exception_oop

   899   // is only used to pass arguments into the method. Not for general

   900   // exception handling.  DO NOT CHANGE IT to use pending_exception, since

   901   // the runtime stubs checks this on exit.

   902   assert(thread->exception_oop() != NULL, "exception oop is found");

   903   address handler_address = NULL;

   905   Handle exception(thread, thread->exception_oop());

   907   if (TraceExceptions) {

   908     trace_exception(exception(), thread->exception_pc(), "");

   909   }

   910   // for AbortVMOnException flag

   911   NOT_PRODUCT(Exceptions::debug_check_abort(exception));

   913   #ifdef ASSERT

   914     if (!(exception->is_a(SystemDictionary::Throwable_klass()))) {

   915       // should throw an exception here

   916       ShouldNotReachHere();

   917     }

   918   #endif

   921   // new exception handling: this method is entered only from adapters

   922   // exceptions from compiled java methods are handled in compiled code

   923   // using rethrow node

   925   address pc = thread->exception_pc();

   926   nm = CodeCache::find_nmethod(pc);

   927   assert(nm != NULL, "No NMethod found");

   928   if (nm->is_native_method()) {

   929     fatal("Native mathod should not have path to exception handling");

   930   } else {

   931     // we are switching to old paradigm: search for exception handler in caller_frame

   932     // instead in exception handler of caller_frame.sender()

   934     if (JvmtiExport::can_post_on_exceptions()) {

   935       // "Full-speed catching" is not necessary here,

   936       // since we're notifying the VM on every catch.

   937       // Force deoptimization and the rest of the lookup

   938       // will be fine.

   939       deoptimize_caller_frame(thread, true);

   940     }

   942     // Check the stack guard pages.  If enabled, look for handler in this frame;

   943     // otherwise, forcibly unwind the frame.

   944     //

   945     // 4826555: use default current sp for reguard_stack instead of &nm: it's more accurate.

   946     bool force_unwind = !thread->reguard_stack();

   947     bool deopting = false;

   948     if (nm->is_deopt_pc(pc)) {

   949       deopting = true;

   950       RegisterMap map(thread, false);

   951       frame deoptee = thread->last_frame().sender(&map);

   952       assert(deoptee.is_deoptimized_frame(), "must be deopted");

   953       // Adjust the pc back to the original throwing pc

   954       pc = deoptee.pc();

   955     }

   957     // If we are forcing an unwind because of stack overflow then deopt is

   958     // irrelevant sice we are throwing the frame away anyway.

   960     if (deopting && !force_unwind) {

   961       handler_address = SharedRuntime::deopt_blob()->unpack_with_exception();

   962     } else {

   964       handler_address =

   965         force_unwind ? NULL : nm->handler_for_exception_and_pc(exception, pc);

   967       if (handler_address == NULL) {

   968         handler_address = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true);

   969         assert (handler_address != NULL, "must have compiled handler");

   970         // Update the exception cache only when the unwind was not forced.

   971         if (!force_unwind) {

   972           nm->add_handler_for_exception_and_pc(exception,pc,handler_address);

   973         }

   974       } else {

   975         assert(handler_address == SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true), "Must be the same");

   976       }

   977     }

   979     thread->set_exception_pc(pc);

   980     thread->set_exception_handler_pc(handler_address);

   982     // Check if the exception PC is a MethodHandle call site.

   983     thread->set_is_method_handle_return(nm->is_method_handle_return(pc));

   984   }

   986   // Restore correct return pc.  Was saved above.

   987   thread->set_exception_oop(exception());

   988   return handler_address;

   990 JRT_END

   992 // We are entering here from exception_blob

   993 // If there is a compiled exception handler in this method, we will continue there;

   994 // otherwise we will unwind the stack and continue at the caller of top frame method

   995 // Note we enter without the usual JRT wrapper. We will call a helper routine that

   996 // will do the normal VM entry. We do it this way so that we can see if the nmethod

   997 // we looked up the handler for has been deoptimized in the meantime. If it has been

   998 // we must not use the handler and instread return the deopt blob.

   999 address OptoRuntime::handle_exception_C(JavaThread* thread) {

  1000 //

  1001 // We are in Java not VM and in debug mode we have a NoHandleMark

  1002 //

  1003 #ifndef PRODUCT

  1004   SharedRuntime::_find_handler_ctr++;          // find exception handler

  1005 #endif

  1006   debug_only(NoHandleMark __hm;)

  1007   nmethod* nm = NULL;

  1008   address handler_address = NULL;

  1009   {

  1010     // Enter the VM

  1012     ResetNoHandleMark rnhm;

  1013     handler_address = handle_exception_C_helper(thread, nm);

  1014   }

  1016   // Back in java: Use no oops, DON'T safepoint

  1018   // Now check to see if the handler we are returning is in a now

  1019   // deoptimized frame

  1021   if (nm != NULL) {

  1022     RegisterMap map(thread, false);

  1023     frame caller = thread->last_frame().sender(&map);

  1024 #ifdef ASSERT

  1025     assert(caller.is_compiled_frame(), "must be");

  1026 #endif // ASSERT

  1027     if (caller.is_deoptimized_frame()) {

  1028       handler_address = SharedRuntime::deopt_blob()->unpack_with_exception();

  1029     }

  1030   }

  1031   return handler_address;

  1032 }

  1034 //------------------------------rethrow----------------------------------------

  1035 // We get here after compiled code has executed a 'RethrowNode'.  The callee

  1036 // is either throwing or rethrowing an exception.  The callee-save registers

  1037 // have been restored, synchronized objects have been unlocked and the callee

  1038 // stack frame has been removed.  The return address was passed in.

  1039 // Exception oop is passed as the 1st argument.  This routine is then called

  1040 // from the stub.  On exit, we know where to jump in the caller's code.

  1041 // After this C code exits, the stub will pop his frame and end in a jump

  1042 // (instead of a return).  We enter the caller's default handler.

  1043 //

  1044 // This must be JRT_LEAF:

  1045 //     - caller will not change its state as we cannot block on exit,

  1046 //       therefore raw_exception_handler_for_return_address is all it takes

  1047 //       to handle deoptimized blobs

  1048 //

  1049 // However, there needs to be a safepoint check in the middle!  So compiled

  1050 // safepoints are completely watertight.

  1051 //

  1052 // Thus, it cannot be a leaf since it contains the No_GC_Verifier.

  1053 //

  1054 // *THIS IS NOT RECOMMENDED PROGRAMMING STYLE*

  1055 //

  1056 address OptoRuntime::rethrow_C(oopDesc* exception, JavaThread* thread, address ret_pc) {

  1057 #ifndef PRODUCT

  1058   SharedRuntime::_rethrow_ctr++;               // count rethrows

  1059 #endif

  1060   assert (exception != NULL, "should have thrown a NULLPointerException");

  1061 #ifdef ASSERT

  1062   if (!(exception->is_a(SystemDictionary::Throwable_klass()))) {

  1063     // should throw an exception here

  1064     ShouldNotReachHere();

  1065   }

  1066 #endif

  1068   thread->set_vm_result(exception);

  1069   // Frame not compiled (handles deoptimization blob)

  1070   return SharedRuntime::raw_exception_handler_for_return_address(thread, ret_pc);

  1071 }

  1074 const TypeFunc *OptoRuntime::rethrow_Type() {

  1075   // create input type (domain)

  1076   const Type **fields = TypeTuple::fields(1);

  1077   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop

  1078   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields);

  1080   // create result type (range)

  1081   fields = TypeTuple::fields(1);

  1082   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop

  1083   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);

  1085   return TypeFunc::make(domain, range);

  1086 }

  1089 void OptoRuntime::deoptimize_caller_frame(JavaThread *thread, bool doit) {

  1090   // Deoptimize frame

  1091   if (doit) {

  1092     // Called from within the owner thread, so no need for safepoint

  1093     RegisterMap reg_map(thread);

  1094     frame stub_frame = thread->last_frame();

  1095     assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check");

  1096     frame caller_frame = stub_frame.sender(&reg_map);

  1098     // bypass VM_DeoptimizeFrame and deoptimize the frame directly

  1099     Deoptimization::deoptimize_frame(thread, caller_frame.id());

  1100   }

  1101 }

  1104 const TypeFunc *OptoRuntime::register_finalizer_Type() {

  1105   // create input type (domain)

  1106   const Type **fields = TypeTuple::fields(1);

  1107   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL;  // oop;          Receiver

  1108   // // The JavaThread* is passed to each routine as the last argument

  1109   // fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL;  // JavaThread *; Executing thread

  1110   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields);

  1112   // create result type (range)

  1113   fields = TypeTuple::fields(0);

  1115   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);

  1117   return TypeFunc::make(domain,range);

  1118 }

  1121 //-----------------------------------------------------------------------------

  1122 // Dtrace support.  entry and exit probes have the same signature

  1123 const TypeFunc *OptoRuntime::dtrace_method_entry_exit_Type() {

  1124   // create input type (domain)

  1125   const Type **fields = TypeTuple::fields(2);

  1126   fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage

  1127   fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL;  // methodOop;    Method we are entering

  1128   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);

  1130   // create result type (range)

  1131   fields = TypeTuple::fields(0);

  1133   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);

  1135   return TypeFunc::make(domain,range);

  1136 }

  1138 const TypeFunc *OptoRuntime::dtrace_object_alloc_Type() {

  1139   // create input type (domain)

  1140   const Type **fields = TypeTuple::fields(2);

  1141   fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage

  1142   fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL;  // oop;    newly allocated object

  1144   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);

  1146   // create result type (range)

  1147   fields = TypeTuple::fields(0);

  1149   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);

  1151   return TypeFunc::make(domain,range);

  1152 }

  1155 JRT_ENTRY_NO_ASYNC(void, OptoRuntime::register_finalizer(oopDesc* obj, JavaThread* thread))

  1156   assert(obj->is_oop(), "must be a valid oop");

  1157   assert(obj->klass()->klass_part()->has_finalizer(), "shouldn't be here otherwise");

  1158   instanceKlass::register_finalizer(instanceOop(obj), CHECK);

  1159 JRT_END

  1161 //-----------------------------------------------------------------------------

  1163 NamedCounter * volatile OptoRuntime::_named_counters = NULL;

  1165 //

  1166 // dump the collected NamedCounters.

  1167 //

  1168 void OptoRuntime::print_named_counters() {

  1169   int total_lock_count = 0;

  1170   int eliminated_lock_count = 0;

  1172   NamedCounter* c = _named_counters;

  1173   while (c) {

  1174     if (c->tag() == NamedCounter::LockCounter || c->tag() == NamedCounter::EliminatedLockCounter) {

  1175       int count = c->count();

  1176       if (count > 0) {

  1177         bool eliminated = c->tag() == NamedCounter::EliminatedLockCounter;

  1178         if (Verbose) {

  1179           tty->print_cr("%d %s%s", count, c->name(), eliminated ? " (eliminated)" : "");

  1180         }

  1181         total_lock_count += count;

  1182         if (eliminated) {

  1183           eliminated_lock_count += count;

  1184         }

  1185       }

  1186     } else if (c->tag() == NamedCounter::BiasedLockingCounter) {

  1187       BiasedLockingCounters* blc = ((BiasedLockingNamedCounter*)c)->counters();

  1188       if (blc->nonzero()) {

  1189         tty->print_cr("%s", c->name());

  1190         blc->print_on(tty);

  1191       }

  1192     }

  1193     c = c->next();

  1194   }

  1195   if (total_lock_count > 0) {

  1196     tty->print_cr("dynamic locks: %d", total_lock_count);

  1197     if (eliminated_lock_count) {

  1198       tty->print_cr("eliminated locks: %d (%d%%)", eliminated_lock_count,

  1199                     (int)(eliminated_lock_count * 100.0 / total_lock_count));

  1200     }

  1201   }

  1202 }

  1204 //

  1205 //  Allocate a new NamedCounter.  The JVMState is used to generate the

  1206 //  name which consists of method@line for the inlining tree.

  1207 //

  1209 NamedCounter* OptoRuntime::new_named_counter(JVMState* youngest_jvms, NamedCounter::CounterTag tag) {

  1210   int max_depth = youngest_jvms->depth();

  1212   // Visit scopes from youngest to oldest.

  1213   bool first = true;

  1214   stringStream st;

  1215   for (int depth = max_depth; depth >= 1; depth--) {

  1216     JVMState* jvms = youngest_jvms->of_depth(depth);

  1217     ciMethod* m = jvms->has_method() ? jvms->method() : NULL;

  1218     if (!first) {

  1219       st.print(" ");

  1220     } else {

  1221       first = false;

  1222     }

  1223     int bci = jvms->bci();

  1224     if (bci < 0) bci = 0;

  1225     st.print("%s.%s@%d", m->holder()->name()->as_utf8(), m->name()->as_utf8(), bci);

  1226     // To print linenumbers instead of bci use: m->line_number_from_bci(bci)

  1227   }

  1228   NamedCounter* c;

  1229   if (tag == NamedCounter::BiasedLockingCounter) {

  1230     c = new BiasedLockingNamedCounter(strdup(st.as_string()));

  1231   } else {

  1232     c = new NamedCounter(strdup(st.as_string()), tag);

  1233   }

  1235   // atomically add the new counter to the head of the list.  We only

  1236   // add counters so this is safe.

  1237   NamedCounter* head;

  1238   do {

  1239     head = _named_counters;

  1240     c->set_next(head);

  1241   } while (Atomic::cmpxchg_ptr(c, &_named_counters, head) != head);

  1242   return c;

  1243 }

  1245 //-----------------------------------------------------------------------------

  1246 // Non-product code

  1247 #ifndef PRODUCT

  1249 int trace_exception_counter = 0;

  1250 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) {

  1251   ttyLocker ttyl;

  1252   trace_exception_counter++;

  1253   tty->print("%d [Exception (%s): ", trace_exception_counter, msg);

  1254   exception_oop->print_value();

  1255   tty->print(" in ");

  1256   CodeBlob* blob = CodeCache::find_blob(exception_pc);

  1257   if (blob->is_nmethod()) {

  1258     ((nmethod*)blob)->method()->print_value();

  1259   } else if (blob->is_runtime_stub()) {

  1260     tty->print("<runtime-stub>");

  1261   } else {

  1262     tty->print("<unknown>");

  1263   }

  1264   tty->print(" at " INTPTR_FORMAT,  exception_pc);

  1265   tty->print_cr("]");

  1266 }

  1268 #endif  // PRODUCT

  1271 # ifdef ENABLE_ZAP_DEAD_LOCALS

  1272 // Called from call sites in compiled code with oop maps (actually safepoints)

  1273 // Zaps dead locals in first java frame.

  1274 // Is entry because may need to lock to generate oop maps

  1275 // Currently, only used for compiler frames, but someday may be used

  1276 // for interpreter frames, too.

  1278 int OptoRuntime::ZapDeadCompiledLocals_count = 0;

  1280 // avoid pointers to member funcs with these helpers

  1281 static bool is_java_frame(  frame* f) { return f->is_java_frame();   }

  1282 static bool is_native_frame(frame* f) { return f->is_native_frame(); }

  1285 void OptoRuntime::zap_dead_java_or_native_locals(JavaThread* thread,

  1286                                                 bool (*is_this_the_right_frame_to_zap)(frame*)) {

  1287   assert(JavaThread::current() == thread, "is this needed?");

  1289   if ( !ZapDeadCompiledLocals )  return;

  1291   bool skip = false;

  1293        if ( ZapDeadCompiledLocalsFirst  ==  0  ) ; // nothing special

  1294   else if ( ZapDeadCompiledLocalsFirst  >  ZapDeadCompiledLocals_count )  skip = true;

  1295   else if ( ZapDeadCompiledLocalsFirst  == ZapDeadCompiledLocals_count )

  1296     warning("starting zapping after skipping");

  1298        if ( ZapDeadCompiledLocalsLast  ==  -1  ) ; // nothing special

  1299   else if ( ZapDeadCompiledLocalsLast  <   ZapDeadCompiledLocals_count )  skip = true;

  1300   else if ( ZapDeadCompiledLocalsLast  ==  ZapDeadCompiledLocals_count )

  1301     warning("about to zap last zap");

  1303   ++ZapDeadCompiledLocals_count; // counts skipped zaps, too

  1305   if ( skip )  return;

  1307   // find java frame and zap it

  1309   for (StackFrameStream sfs(thread);  !sfs.is_done();  sfs.next()) {

  1310     if (is_this_the_right_frame_to_zap(sfs.current()) ) {

  1311       sfs.current()->zap_dead_locals(thread, sfs.register_map());

  1312       return;

  1313     }

  1314   }

  1315   warning("no frame found to zap in zap_dead_Java_locals_C");

  1316 }

  1318 JRT_LEAF(void, OptoRuntime::zap_dead_Java_locals_C(JavaThread* thread))

  1319   zap_dead_java_or_native_locals(thread, is_java_frame);

  1320 JRT_END

  1322 // The following does not work because for one thing, the

  1323 // thread state is wrong; it expects java, but it is native.

  1324 // Also, the invariants in a native stub are different and

  1325 // I'm not sure it is safe to have a MachCalRuntimeDirectNode

  1326 // in there.

  1327 // So for now, we do not zap in native stubs.

  1329 JRT_LEAF(void, OptoRuntime::zap_dead_native_locals_C(JavaThread* thread))

  1330   zap_dead_java_or_native_locals(thread, is_native_frame);

  1331 JRT_END

  1333 # endif

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

src/share/vm/opto/runtime.cpp@c124e2e7463e

src/share/vm/opto/runtime.cpp