jdk8-mips64-public/hotspot: src/share/vm/opto/runtime.cpp@bcccbecdde63

     1 /*

     2  * Copyright (c) 1998, 2018, 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 #if defined AD_MD_HPP

    72 # include AD_MD_HPP

    73 #elif defined TARGET_ARCH_MODEL_x86_32

    74 # include "adfiles/ad_x86_32.hpp"

    75 #elif defined TARGET_ARCH_MODEL_x86_64

    76 # include "adfiles/ad_x86_64.hpp"

    77 #elif defined TARGET_ARCH_MODEL_sparc

    78 # include "adfiles/ad_sparc.hpp"

    79 #elif defined TARGET_ARCH_MODEL_zero

    80 # include "adfiles/ad_zero.hpp"

    81 #elif defined TARGET_ARCH_MODEL_ppc_64

    82 # include "adfiles/ad_ppc_64.hpp"

    83 #endif

    86 // For debugging purposes:

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

    88 //

    89 //  Universe::release_fullgc_alot_dummy();

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

    91 //

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

    97 // Compiled code entry points

    98 address OptoRuntime::_new_instance_Java                           = NULL;

    99 address OptoRuntime::_new_array_Java                              = NULL;

   100 address OptoRuntime::_new_array_nozero_Java                       = NULL;

   101 address OptoRuntime::_multianewarray2_Java                        = NULL;

   102 address OptoRuntime::_multianewarray3_Java                        = NULL;

   103 address OptoRuntime::_multianewarray4_Java                        = NULL;

   104 address OptoRuntime::_multianewarray5_Java                        = NULL;

   105 address OptoRuntime::_multianewarrayN_Java                        = NULL;

   106 address OptoRuntime::_g1_wb_pre_Java                              = NULL;

   107 address OptoRuntime::_g1_wb_post_Java                             = NULL;

   108 address OptoRuntime::_vtable_must_compile_Java                    = NULL;

   109 address OptoRuntime::_complete_monitor_locking_Java               = NULL;

   110 address OptoRuntime::_rethrow_Java                                = NULL;

   112 address OptoRuntime::_slow_arraycopy_Java                         = NULL;

   113 address OptoRuntime::_register_finalizer_Java                     = NULL;

   115 # ifdef ENABLE_ZAP_DEAD_LOCALS

   116 address OptoRuntime::_zap_dead_Java_locals_Java                   = NULL;

   117 address OptoRuntime::_zap_dead_native_locals_Java                 = NULL;

   118 # endif

   120 ExceptionBlob* OptoRuntime::_exception_blob;

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

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

   124 #ifdef ASSERT

   125 static bool check_compiled_frame(JavaThread* thread) {

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

   127   RegisterMap map(thread, false);

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

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

   130   return true;

   131 }

   132 #endif // ASSERT

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

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

   137   if (var == NULL) { return false; }

   139 bool OptoRuntime::generate(ciEnv* env) {

   141   generate_exception_blob();

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

   144   //

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

   146   // -------------------------------------------------------------------------------------------------------------------------------

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

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

   149   gen(env, _new_array_nozero_Java          , new_array_Type               , new_array_nozero_C              ,    0 , true , false, false);

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

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

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

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

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

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

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

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

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

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

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

   163 # ifdef ENABLE_ZAP_DEAD_LOCALS

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

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

   166 # endif

   167   return true;

   168 }

   170 #undef gen

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

   174 address OptoRuntime::generate_stub( ciEnv* env,

   175                                     TypeFunc_generator gen, address C_function,

   176                                     const char *name, int is_fancy_jump,

   177                                     bool pass_tls,

   178                                     bool save_argument_registers,

   179                                     bool return_pc ) {

   180   ResourceMark rm;

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

   182   return  C.stub_entry_point();

   183 }

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

   186 #ifndef PRODUCT

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

   188   RuntimeStub* rs =(RuntimeStub *)cb;

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

   190   return rs->name();

   191 #else

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

   193   return "runtime stub";

   194 #endif

   195 }

   198 //=============================================================================

   199 // Opto compiler runtime routines

   200 //=============================================================================

   203 //=============================allocation======================================

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

   205 // and try allocation again.

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

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

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

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

   211   // GC may take any compensating steps.

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

   214   oop new_obj = thread->vm_result();

   215   if (new_obj == NULL)  return;

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

   218          "compiler must check this first");

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

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

   221   thread->set_vm_result(new_obj);

   222 }

   224 // object allocation

   225 JRT_BLOCK_ENTRY(void, OptoRuntime::new_instance_C(Klass* klass, JavaThread* thread))

   226   JRT_BLOCK;

   227 #ifndef PRODUCT

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

   229 #endif

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

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

   233   int lh = klass->layout_helper();

   234   if (Klass::layout_helper_needs_slow_path(lh) || !InstanceKlass::cast(klass)->is_initialized()) {

   235     Handle holder(THREAD, klass->klass_holder()); // keep the klass alive

   236     klass->check_valid_for_instantiation(false, THREAD);

   237     if (!HAS_PENDING_EXCEPTION) {

   238       InstanceKlass::cast(klass)->initialize(THREAD);

   239     }

   240   }

   242   if (!HAS_PENDING_EXCEPTION) {

   243     // Scavenge and allocate an instance.

   244     Handle holder(THREAD, klass->klass_holder()); // keep the klass alive

   245     oop result = InstanceKlass::cast(klass)->allocate_instance(THREAD);

   246     thread->set_vm_result(result);

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

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

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

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

   252   }

   254   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   255   JRT_BLOCK_END;

   257   if (GraphKit::use_ReduceInitialCardMarks()) {

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

   259     new_store_pre_barrier(thread);

   260   }

   261 JRT_END

   264 // array allocation

   265 JRT_BLOCK_ENTRY(void, OptoRuntime::new_array_C(Klass* array_type, int len, JavaThread *thread))

   266   JRT_BLOCK;

   267 #ifndef PRODUCT

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

   269 #endif

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

   272   // Scavenge and allocate an instance.

   273   oop result;

   275   if (array_type->oop_is_typeArray()) {

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

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

   278     BasicType elem_type = TypeArrayKlass::cast(array_type)->element_type();

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

   280   } else {

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

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

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

   284     Handle holder(THREAD, array_type->klass_holder()); // keep the array klass alive

   285     Klass* elem_type = ObjArrayKlass::cast(array_type)->element_klass();

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

   287   }

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

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

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

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

   293   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   294   thread->set_vm_result(result);

   295   JRT_BLOCK_END;

   297   if (GraphKit::use_ReduceInitialCardMarks()) {

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

   299     new_store_pre_barrier(thread);

   300   }

   301 JRT_END

   303 // array allocation without zeroing

   304 JRT_BLOCK_ENTRY(void, OptoRuntime::new_array_nozero_C(Klass* array_type, int len, JavaThread *thread))

   305   JRT_BLOCK;

   306 #ifndef PRODUCT

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

   308 #endif

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

   311   // Scavenge and allocate an instance.

   312   oop result;

   314   assert(array_type->oop_is_typeArray(), "should be called only for type array");

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

   316   BasicType elem_type = TypeArrayKlass::cast(array_type)->element_type();

   317   result = oopFactory::new_typeArray_nozero(elem_type, len, THREAD);

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

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

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

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

   323   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   324   thread->set_vm_result(result);

   325   JRT_BLOCK_END;

   327   if (GraphKit::use_ReduceInitialCardMarks()) {

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

   329     new_store_pre_barrier(thread);

   330   }

   332   oop result = thread->vm_result();

   333   if ((len > 0) && (result != NULL) &&

   334       is_deoptimized_caller_frame(thread)) {

   335     // Zero array here if the caller is deoptimized.

   336     int size = ((typeArrayOop)result)->object_size();

   337     BasicType elem_type = TypeArrayKlass::cast(array_type)->element_type();

   338     const size_t hs = arrayOopDesc::header_size(elem_type);

   339     // Align to next 8 bytes to avoid trashing arrays's length.

   340     const size_t aligned_hs = align_object_offset(hs);

   341     HeapWord* obj = (HeapWord*)result;

   342     if (aligned_hs > hs) {

   343       Copy::zero_to_words(obj+hs, aligned_hs-hs);

   344     }

   345     // Optimized zeroing.

   346     Copy::fill_to_aligned_words(obj+aligned_hs, size-aligned_hs);

   347   }

   349 JRT_END

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

   353 // multianewarray for 2 dimensions

   354 JRT_ENTRY(void, OptoRuntime::multianewarray2_C(Klass* elem_type, int len1, int len2, JavaThread *thread))

   355 #ifndef PRODUCT

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

   357 #endif

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

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

   360   jint dims[2];

   361   dims[0] = len1;

   362   dims[1] = len2;

   363   Handle holder(THREAD, elem_type->klass_holder()); // keep the klass alive

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

   365   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   366   thread->set_vm_result(obj);

   367 JRT_END

   369 // multianewarray for 3 dimensions

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

   371 #ifndef PRODUCT

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

   373 #endif

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

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

   376   jint dims[3];

   377   dims[0] = len1;

   378   dims[1] = len2;

   379   dims[2] = len3;

   380   Handle holder(THREAD, elem_type->klass_holder()); // keep the klass alive

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

   382   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   383   thread->set_vm_result(obj);

   384 JRT_END

   386 // multianewarray for 4 dimensions

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

   388 #ifndef PRODUCT

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

   390 #endif

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

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

   393   jint dims[4];

   394   dims[0] = len1;

   395   dims[1] = len2;

   396   dims[2] = len3;

   397   dims[3] = len4;

   398   Handle holder(THREAD, elem_type->klass_holder()); // keep the klass alive

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

   400   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   401   thread->set_vm_result(obj);

   402 JRT_END

   404 // multianewarray for 5 dimensions

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

   406 #ifndef PRODUCT

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

   408 #endif

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

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

   411   jint dims[5];

   412   dims[0] = len1;

   413   dims[1] = len2;

   414   dims[2] = len3;

   415   dims[3] = len4;

   416   dims[4] = len5;

   417   Handle holder(THREAD, elem_type->klass_holder()); // keep the klass alive

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

   419   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   420   thread->set_vm_result(obj);

   421 JRT_END

   423 JRT_ENTRY(void, OptoRuntime::multianewarrayN_C(Klass* elem_type, arrayOopDesc* dims, JavaThread *thread))

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

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

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

   428   ResourceMark rm;

   429   jint len = dims->length();

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

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

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

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

   435   Handle holder(THREAD, elem_type->klass_holder()); // keep the klass alive

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

   437   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   438   thread->set_vm_result(obj);

   439 JRT_END

   442 const TypeFunc *OptoRuntime::new_instance_Type() {

   443   // create input type (domain)

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

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

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

   448   // create result type (range)

   449   fields = TypeTuple::fields(1);

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

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

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

   455 }

   458 const TypeFunc *OptoRuntime::athrow_Type() {

   459   // create input type (domain)

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

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

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

   464   // create result type (range)

   465   fields = TypeTuple::fields(0);

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

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

   470 }

   473 const TypeFunc *OptoRuntime::new_array_Type() {

   474   // create input type (domain)

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

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

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

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

   480   // create result type (range)

   481   fields = TypeTuple::fields(1);

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

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

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

   487 }

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

   490   // create input type (domain)

   491   const int nargs = ndim + 1;

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

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

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

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

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

   498   // create result type (range)

   499   fields = TypeTuple::fields(1);

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

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

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

   504 }

   506 const TypeFunc *OptoRuntime::multianewarray2_Type() {

   507   return multianewarray_Type(2);

   508 }

   510 const TypeFunc *OptoRuntime::multianewarray3_Type() {

   511   return multianewarray_Type(3);

   512 }

   514 const TypeFunc *OptoRuntime::multianewarray4_Type() {

   515   return multianewarray_Type(4);

   516 }

   518 const TypeFunc *OptoRuntime::multianewarray5_Type() {

   519   return multianewarray_Type(5);

   520 }

   522 const TypeFunc *OptoRuntime::multianewarrayN_Type() {

   523   // create input type (domain)

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

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

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

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

   529   // create result type (range)

   530   fields = TypeTuple::fields(1);

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

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

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

   535 }

   537 const TypeFunc *OptoRuntime::g1_wb_pre_Type() {

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

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

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

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

   543   // create result type (range)

   544   fields = TypeTuple::fields(0);

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

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

   548 }

   550 const TypeFunc *OptoRuntime::g1_wb_post_Type() {

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

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

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

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

   557   // create result type (range)

   558   fields = TypeTuple::fields(0);

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

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

   562 }

   564 const TypeFunc *OptoRuntime::uncommon_trap_Type() {

   565   // create input type (domain)

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

   567   // Symbol* name of class to be loaded

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

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

   571   // create result type (range)

   572   fields = TypeTuple::fields(0);

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

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

   576 }

   578 # ifdef ENABLE_ZAP_DEAD_LOCALS

   579 // Type used for stub generation for zap_dead_locals.

   580 // No inputs or outputs

   581 const TypeFunc *OptoRuntime::zap_dead_locals_Type() {

   582   // create input type (domain)

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

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

   586   // create result type (range)

   587   fields = TypeTuple::fields(0);

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

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

   591 }

   592 # endif

   595 //-----------------------------------------------------------------------------

   596 // Monitor Handling

   597 const TypeFunc *OptoRuntime::complete_monitor_enter_Type() {

   598   // create input type (domain)

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

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

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

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

   604   // create result type (range)

   605   fields = TypeTuple::fields(0);

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

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

   610 }

   613 //-----------------------------------------------------------------------------

   614 const TypeFunc *OptoRuntime::complete_monitor_exit_Type() {

   615   // create input type (domain)

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

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

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

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

   621   // create result type (range)

   622   fields = TypeTuple::fields(0);

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

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

   627 }

   629 const TypeFunc* OptoRuntime::flush_windows_Type() {

   630   // create input type (domain)

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

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

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

   635   // create result type

   636   fields = TypeTuple::fields(1);

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

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

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

   641 }

   643 const TypeFunc* OptoRuntime::l2f_Type() {

   644   // create input type (domain)

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

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

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

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

   650   // create result type (range)

   651   fields = TypeTuple::fields(1);

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

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

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

   656 }

   658 const TypeFunc* OptoRuntime::modf_Type() {

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

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

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

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

   664   // create result type (range)

   665   fields = TypeTuple::fields(1);

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

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

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

   671 }

   673 const TypeFunc *OptoRuntime::Math_D_D_Type() {

   674   // create input type (domain)

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

   676   // Symbol* name of class to be loaded

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

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

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

   681   // create result type (range)

   682   fields = TypeTuple::fields(2);

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

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

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

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

   688 }

   690 const TypeFunc* OptoRuntime::Math_DD_D_Type() {

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

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

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

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

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

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

   698   // create result type (range)

   699   fields = TypeTuple::fields(2);

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

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

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

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

   705 }

   707 //-------------- currentTimeMillis, currentTimeNanos, etc

   709 const TypeFunc* OptoRuntime::void_long_Type() {

   710   // create input type (domain)

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

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

   714   // create result type (range)

   715   fields = TypeTuple::fields(2);

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

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

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

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

   721 }

   723 // arraycopy stub variations:

   724 enum ArrayCopyType {

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

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

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

   728   ac_generic                    //  int(ptr, int, ptr, int, int)

   729 };

   731 static const TypeFunc* make_arraycopy_Type(ArrayCopyType act) {

   732   // create input type (domain)

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

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

   735   int argcnt = num_args;

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

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

   738   int argp = TypeFunc::Parms;

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

   740   if (num_size_args == 0) {

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

   742   }

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

   744   if (num_size_args == 0) {

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

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

   747   }

   748   while (num_size_args-- > 0) {

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

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

   751   }

   752   if (act == ac_checkcast) {

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

   754   }

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

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

   758   // create result type if needed

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

   760   fields = TypeTuple::fields(1);

   761   if (retcnt == 0)

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

   763   else

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

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

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

   767 }

   769 const TypeFunc* OptoRuntime::fast_arraycopy_Type() {

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

   771   return make_arraycopy_Type(ac_fast);

   772 }

   774 const TypeFunc* OptoRuntime::checkcast_arraycopy_Type() {

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

   776   return make_arraycopy_Type(ac_checkcast);

   777 }

   779 const TypeFunc* OptoRuntime::slow_arraycopy_Type() {

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

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

   782   return make_arraycopy_Type(ac_slow);

   783 }

   785 const TypeFunc* OptoRuntime::generic_arraycopy_Type() {

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

   787   return make_arraycopy_Type(ac_generic);

   788 }

   791 const TypeFunc* OptoRuntime::array_fill_Type() {

   792   const Type** fields;

   793   int argp = TypeFunc::Parms;

   794   if (CCallingConventionRequiresIntsAsLongs) {

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

   796     fields = TypeTuple::fields(3 LP64_ONLY( + 2));

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

   798     fields[argp++] = TypeLong::LONG;

   799     fields[argp++] = Type::HALF;

   800   } else {

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

   802     fields = TypeTuple::fields(3 LP64_ONLY( + 1));

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

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

   805   }

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

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

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

   810   // create result type

   811   fields = TypeTuple::fields(1);

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

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

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

   816 }

   818 // for aescrypt encrypt/decrypt operations, just three pointers returning void (length is constant)

   819 const TypeFunc* OptoRuntime::aescrypt_block_Type() {

   820   // create input type (domain)

   821   int num_args      = 3;

   822   if (Matcher::pass_original_key_for_aes()) {

   823     num_args = 4;

   824   }

   825   int argcnt = num_args;

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

   827   int argp = TypeFunc::Parms;

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

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

   830   fields[argp++] = TypePtr::NOTNULL;    // k array

   831   if (Matcher::pass_original_key_for_aes()) {

   832     fields[argp++] = TypePtr::NOTNULL;    // original k array

   833   }

   834   assert(argp == TypeFunc::Parms+argcnt, "correct decoding");

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

   837   // no result type needed

   838   fields = TypeTuple::fields(1);

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

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

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

   842 }

   844 /**

   845  * int updateBytesCRC32(int crc, byte* b, int len)

   846  */

   847 const TypeFunc* OptoRuntime::updateBytesCRC32_Type() {

   848   // create input type (domain)

   849   int num_args = 3;

   850   int argcnt = num_args;

   851   if (CCallingConventionRequiresIntsAsLongs) {

   852     argcnt += 2;

   853   }

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

   855   int argp = TypeFunc::Parms;

   856   if (CCallingConventionRequiresIntsAsLongs) {

   857     fields[argp++] = TypeLong::LONG;   // crc

   858     fields[argp++] = Type::HALF;

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

   860     fields[argp++] = TypeLong::LONG;   // len

   861     fields[argp++] = Type::HALF;

   862   } else {

   863     fields[argp++] = TypeInt::INT;     // crc

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

   865     fields[argp++] = TypeInt::INT;     // len

   866   }

   867   assert(argp == TypeFunc::Parms+argcnt, "correct decoding");

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

   870   // result type needed

   871   fields = TypeTuple::fields(1);

   872   fields[TypeFunc::Parms+0] = TypeInt::INT; // crc result

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

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

   875 }

   877 // for cipherBlockChaining calls of aescrypt encrypt/decrypt, four pointers and a length, returning int

   878 const TypeFunc* OptoRuntime::cipherBlockChaining_aescrypt_Type() {

   879   // create input type (domain)

   880   int num_args      = 5;

   881   if (Matcher::pass_original_key_for_aes()) {

   882     num_args = 6;

   883   }

   884   int argcnt = num_args;

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

   886   int argp = TypeFunc::Parms;

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

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

   889   fields[argp++] = TypePtr::NOTNULL;    // k array

   890   fields[argp++] = TypePtr::NOTNULL;    // r array

   891   fields[argp++] = TypeInt::INT;        // src len

   892   if (Matcher::pass_original_key_for_aes()) {

   893     fields[argp++] = TypePtr::NOTNULL;    // original k array

   894   }

   895   assert(argp == TypeFunc::Parms+argcnt, "correct decoding");

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

   898   // returning cipher len (int)

   899   fields = TypeTuple::fields(1);

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

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

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

   903 }

   905 /*

   906  * void implCompress(byte[] buf, int ofs)

   907  */

   908 const TypeFunc* OptoRuntime::sha_implCompress_Type() {

   909   // create input type (domain)

   910   int num_args = 2;

   911   int argcnt = num_args;

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

   913   int argp = TypeFunc::Parms;

   914   fields[argp++] = TypePtr::NOTNULL; // buf

   915   fields[argp++] = TypePtr::NOTNULL; // state

   916   assert(argp == TypeFunc::Parms+argcnt, "correct decoding");

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

   919   // no result type needed

   920   fields = TypeTuple::fields(1);

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

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

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

   924 }

   926 /*

   927  * int implCompressMultiBlock(byte[] b, int ofs, int limit)

   928  */

   929 const TypeFunc* OptoRuntime::digestBase_implCompressMB_Type() {

   930   // create input type (domain)

   931   int num_args = 4;

   932   int argcnt = num_args;

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

   934   int argp = TypeFunc::Parms;

   935   fields[argp++] = TypePtr::NOTNULL; // buf

   936   fields[argp++] = TypePtr::NOTNULL; // state

   937   fields[argp++] = TypeInt::INT;     // ofs

   938   fields[argp++] = TypeInt::INT;     // limit

   939   assert(argp == TypeFunc::Parms+argcnt, "correct decoding");

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

   942   // returning ofs (int)

   943   fields = TypeTuple::fields(1);

   944   fields[TypeFunc::Parms+0] = TypeInt::INT; // ofs

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

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

   947 }

   949 const TypeFunc* OptoRuntime::multiplyToLen_Type() {

   950   // create input type (domain)

   951   int num_args      = 6;

   952   int argcnt = num_args;

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

   954   int argp = TypeFunc::Parms;

   955   fields[argp++] = TypePtr::NOTNULL;    // x

   956   fields[argp++] = TypeInt::INT;        // xlen

   957   fields[argp++] = TypePtr::NOTNULL;    // y

   958   fields[argp++] = TypeInt::INT;        // ylen

   959   fields[argp++] = TypePtr::NOTNULL;    // z

   960   fields[argp++] = TypeInt::INT;        // zlen

   961   assert(argp == TypeFunc::Parms+argcnt, "correct decoding");

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

   964   // no result type needed

   965   fields = TypeTuple::fields(1);

   966   fields[TypeFunc::Parms+0] = NULL;

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

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

   969 }

   971 const TypeFunc* OptoRuntime::squareToLen_Type() {

   972   // create input type (domain)

   973   int num_args      = 4;

   974   int argcnt = num_args;

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

   976   int argp = TypeFunc::Parms;

   977   fields[argp++] = TypePtr::NOTNULL;    // x

   978   fields[argp++] = TypeInt::INT;        // len

   979   fields[argp++] = TypePtr::NOTNULL;    // z

   980   fields[argp++] = TypeInt::INT;        // zlen

   981   assert(argp == TypeFunc::Parms+argcnt, "correct decoding");

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

   984   // no result type needed

   985   fields = TypeTuple::fields(1);

   986   fields[TypeFunc::Parms+0] = NULL;

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

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

   989 }

   991 // for mulAdd calls, 2 pointers and 3 ints, returning int

   992 const TypeFunc* OptoRuntime::mulAdd_Type() {

   993   // create input type (domain)

   994   int num_args      = 5;

   995   int argcnt = num_args;

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

   997   int argp = TypeFunc::Parms;

   998   fields[argp++] = TypePtr::NOTNULL;    // out

   999   fields[argp++] = TypePtr::NOTNULL;    // in

  1000   fields[argp++] = TypeInt::INT;        // offset

  1001   fields[argp++] = TypeInt::INT;        // len

  1002   fields[argp++] = TypeInt::INT;        // k

  1003   assert(argp == TypeFunc::Parms+argcnt, "correct decoding");

  1004   const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);

  1006   // returning carry (int)

  1007   fields = TypeTuple::fields(1);

  1008   fields[TypeFunc::Parms+0] = TypeInt::INT;

  1009   const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+1, fields);

  1010   return TypeFunc::make(domain, range);

  1011 }

  1013 const TypeFunc* OptoRuntime::montgomeryMultiply_Type() {

  1014   // create input type (domain)

  1015   int num_args      = 7;

  1016   int argcnt = num_args;

  1017   if (CCallingConventionRequiresIntsAsLongs) {

  1018     argcnt++;                           // additional placeholder

  1019   }

  1020   const Type** fields = TypeTuple::fields(argcnt);

  1021   int argp = TypeFunc::Parms;

  1022   fields[argp++] = TypePtr::NOTNULL;    // a

  1023   fields[argp++] = TypePtr::NOTNULL;    // b

  1024   fields[argp++] = TypePtr::NOTNULL;    // n

  1025   if (CCallingConventionRequiresIntsAsLongs) {

  1026     fields[argp++] = TypeLong::LONG;    // len

  1027     fields[argp++] = TypeLong::HALF;    // placeholder

  1028   } else {

  1029     fields[argp++] = TypeInt::INT;      // len

  1030   }

  1031   fields[argp++] = TypeLong::LONG;      // inv

  1032   fields[argp++] = Type::HALF;

  1033   fields[argp++] = TypePtr::NOTNULL;    // result

  1034   assert(argp == TypeFunc::Parms+argcnt, "correct decoding");

  1035   const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);

  1037   // result type needed

  1038   fields = TypeTuple::fields(1);

  1039   fields[TypeFunc::Parms+0] = TypePtr::NOTNULL;

  1041   const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields);

  1042   return TypeFunc::make(domain, range);

  1043 }

  1045 const TypeFunc* OptoRuntime::montgomerySquare_Type() {

  1046   // create input type (domain)

  1047   int num_args      = 6;

  1048   int argcnt = num_args;

  1049   if (CCallingConventionRequiresIntsAsLongs) {

  1050     argcnt++;                           // additional placeholder

  1051   }

  1052   const Type** fields = TypeTuple::fields(argcnt);

  1053   int argp = TypeFunc::Parms;

  1054   fields[argp++] = TypePtr::NOTNULL;    // a

  1055   fields[argp++] = TypePtr::NOTNULL;    // n

  1056   if (CCallingConventionRequiresIntsAsLongs) {

  1057     fields[argp++] = TypeLong::LONG;    // len

  1058     fields[argp++] = TypeLong::HALF;    // placeholder

  1059   } else {

  1060     fields[argp++] = TypeInt::INT;      // len

  1061   }

  1062   fields[argp++] = TypeLong::LONG;      // inv

  1063   fields[argp++] = Type::HALF;

  1064   fields[argp++] = TypePtr::NOTNULL;    // result

  1065   assert(argp == TypeFunc::Parms+argcnt, "correct decoding");

  1066   const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);

  1068   // result type needed

  1069   fields = TypeTuple::fields(1);

  1070   fields[TypeFunc::Parms+0] = TypePtr::NOTNULL;

  1072   const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields);

  1073   return TypeFunc::make(domain, range);

  1074 }

  1077 //------------- Interpreter state access for on stack replacement

  1078 const TypeFunc* OptoRuntime::osr_end_Type() {

  1079   // create input type (domain)

  1080   const Type **fields = TypeTuple::fields(1);

  1081   fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // OSR temp buf

  1082   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);

  1084   // create result type

  1085   fields = TypeTuple::fields(1);

  1086   // fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // locked oop

  1087   fields[TypeFunc::Parms+0] = NULL; // void

  1088   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);

  1089   return TypeFunc::make(domain, range);

  1090 }

  1092 //-------------- methodData update helpers

  1094 const TypeFunc* OptoRuntime::profile_receiver_type_Type() {

  1095   // create input type (domain)

  1096   const Type **fields = TypeTuple::fields(2);

  1097   fields[TypeFunc::Parms+0] = TypeAryPtr::NOTNULL;    // methodData pointer

  1098   fields[TypeFunc::Parms+1] = TypeInstPtr::BOTTOM;    // receiver oop

  1099   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);

  1101   // create result type

  1102   fields = TypeTuple::fields(1);

  1103   fields[TypeFunc::Parms+0] = NULL; // void

  1104   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);

  1105   return TypeFunc::make(domain,range);

  1106 }

  1108 JRT_LEAF(void, OptoRuntime::profile_receiver_type_C(DataLayout* data, oopDesc* receiver))

  1109   if (receiver == NULL) return;

  1110   Klass* receiver_klass = receiver->klass();

  1112   intptr_t* mdp = ((intptr_t*)(data)) + DataLayout::header_size_in_cells();

  1113   int empty_row = -1;           // free row, if any is encountered

  1115   // ReceiverTypeData* vc = new ReceiverTypeData(mdp);

  1116   for (uint row = 0; row < ReceiverTypeData::row_limit(); row++) {

  1117     // if (vc->receiver(row) == receiver_klass)

  1118     int receiver_off = ReceiverTypeData::receiver_cell_index(row);

  1119     intptr_t row_recv = *(mdp + receiver_off);

  1120     if (row_recv == (intptr_t) receiver_klass) {

  1121       // vc->set_receiver_count(row, vc->receiver_count(row) + DataLayout::counter_increment);

  1122       int count_off = ReceiverTypeData::receiver_count_cell_index(row);

  1123       *(mdp + count_off) += DataLayout::counter_increment;

  1124       return;

  1125     } else if (row_recv == 0) {

  1126       // else if (vc->receiver(row) == NULL)

  1127       empty_row = (int) row;

  1128     }

  1129   }

  1131   if (empty_row != -1) {

  1132     int receiver_off = ReceiverTypeData::receiver_cell_index(empty_row);

  1133     // vc->set_receiver(empty_row, receiver_klass);

  1134     *(mdp + receiver_off) = (intptr_t) receiver_klass;

  1135     // vc->set_receiver_count(empty_row, DataLayout::counter_increment);

  1136     int count_off = ReceiverTypeData::receiver_count_cell_index(empty_row);

  1137     *(mdp + count_off) = DataLayout::counter_increment;

  1138   } else {

  1139     // Receiver did not match any saved receiver and there is no empty row for it.

  1140     // Increment total counter to indicate polymorphic case.

  1141     intptr_t* count_p = (intptr_t*)(((byte*)(data)) + in_bytes(CounterData::count_offset()));

  1142     *count_p += DataLayout::counter_increment;

  1143   }

  1144 JRT_END

  1146 //-------------------------------------------------------------------------------------

  1147 // register policy

  1149 bool OptoRuntime::is_callee_saved_register(MachRegisterNumbers reg) {

  1150   assert(reg >= 0 && reg < _last_Mach_Reg, "must be a machine register");

  1151   switch (register_save_policy[reg]) {

  1152     case 'C': return false; //SOC

  1153     case 'E': return true ; //SOE

  1154     case 'N': return false; //NS

  1155     case 'A': return false; //AS

  1156   }

  1157   ShouldNotReachHere();

  1158   return false;

  1159 }

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

  1162 // Exceptions

  1163 //

  1165 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) PRODUCT_RETURN;

  1167 // The method is an entry that is always called by a C++ method not

  1168 // directly from compiled code. Compiled code will call the C++ method following.

  1169 // We can't allow async exception to be installed during  exception processing.

  1170 JRT_ENTRY_NO_ASYNC(address, OptoRuntime::handle_exception_C_helper(JavaThread* thread, nmethod* &nm))

  1172   // Do not confuse exception_oop with pending_exception. The exception_oop

  1173   // is only used to pass arguments into the method. Not for general

  1174   // exception handling.  DO NOT CHANGE IT to use pending_exception, since

  1175   // the runtime stubs checks this on exit.

  1176   assert(thread->exception_oop() != NULL, "exception oop is found");

  1177   address handler_address = NULL;

  1179   Handle exception(thread, thread->exception_oop());

  1180   address pc = thread->exception_pc();

  1182   // Clear out the exception oop and pc since looking up an

  1183   // exception handler can cause class loading, which might throw an

  1184   // exception and those fields are expected to be clear during

  1185   // normal bytecode execution.

  1186   thread->clear_exception_oop_and_pc();

  1188   if (TraceExceptions) {

  1189     trace_exception(exception(), pc, "");

  1190   }

  1192   // for AbortVMOnException flag

  1193   NOT_PRODUCT(Exceptions::debug_check_abort(exception));

  1195 #ifdef ASSERT

  1196   if (!(exception->is_a(SystemDictionary::Throwable_klass()))) {

  1197     // should throw an exception here

  1198     ShouldNotReachHere();

  1199   }

  1200 #endif

  1202   // new exception handling: this method is entered only from adapters

  1203   // exceptions from compiled java methods are handled in compiled code

  1204   // using rethrow node

  1206   nm = CodeCache::find_nmethod(pc);

  1207   assert(nm != NULL, "No NMethod found");

  1208   if (nm->is_native_method()) {

  1209     fatal("Native method should not have path to exception handling");

  1210   } else {

  1211     // we are switching to old paradigm: search for exception handler in caller_frame

  1212     // instead in exception handler of caller_frame.sender()

  1214     if (JvmtiExport::can_post_on_exceptions()) {

  1215       // "Full-speed catching" is not necessary here,

  1216       // since we're notifying the VM on every catch.

  1217       // Force deoptimization and the rest of the lookup

  1218       // will be fine.

  1219       deoptimize_caller_frame(thread);

  1220     }

  1222     // Check the stack guard pages.  If enabled, look for handler in this frame;

  1223     // otherwise, forcibly unwind the frame.

  1224     //

  1225     // 4826555: use default current sp for reguard_stack instead of &nm: it's more accurate.

  1226     bool force_unwind = !thread->reguard_stack();

  1227     bool deopting = false;

  1228     if (nm->is_deopt_pc(pc)) {

  1229       deopting = true;

  1230       RegisterMap map(thread, false);

  1231       frame deoptee = thread->last_frame().sender(&map);

  1232       assert(deoptee.is_deoptimized_frame(), "must be deopted");

  1233       // Adjust the pc back to the original throwing pc

  1234       pc = deoptee.pc();

  1235     }

  1237     // If we are forcing an unwind because of stack overflow then deopt is

  1238     // irrelevant since we are throwing the frame away anyway.

  1240     if (deopting && !force_unwind) {

  1241       handler_address = SharedRuntime::deopt_blob()->unpack_with_exception();

  1242     } else {

  1244       handler_address =

  1245         force_unwind ? NULL : nm->handler_for_exception_and_pc(exception, pc);

  1247       if (handler_address == NULL) {

  1248         bool recursive_exception = false;

  1249         handler_address = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true, recursive_exception);

  1250         assert (handler_address != NULL, "must have compiled handler");

  1251         // Update the exception cache only when the unwind was not forced

  1252         // and there didn't happen another exception during the computation of the

  1253         // compiled exception handler. Checking for exception oop equality is not

  1254         // sufficient because some exceptions are pre-allocated and reused.

  1255         if (!force_unwind && !recursive_exception) {

  1256           nm->add_handler_for_exception_and_pc(exception,pc,handler_address);

  1257         }

  1258       } else {

  1259 #ifdef ASSERT

  1260         bool recursive_exception = false;

  1261         address computed_address = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true, recursive_exception);

  1262         assert(recursive_exception || (handler_address == computed_address), err_msg("Handler address inconsistency: " PTR_FORMAT " != " PTR_FORMAT,

  1263                  p2i(handler_address), p2i(computed_address)));

  1264 #endif

  1265       }

  1266     }

  1268     thread->set_exception_pc(pc);

  1269     thread->set_exception_handler_pc(handler_address);

  1271     // Check if the exception PC is a MethodHandle call site.

  1272     thread->set_is_method_handle_return(nm->is_method_handle_return(pc));

  1273   }

  1275   // Restore correct return pc.  Was saved above.

  1276   thread->set_exception_oop(exception());

  1277   return handler_address;

  1279 JRT_END

  1281 // We are entering here from exception_blob

  1282 // If there is a compiled exception handler in this method, we will continue there;

  1283 // otherwise we will unwind the stack and continue at the caller of top frame method

  1284 // Note we enter without the usual JRT wrapper. We will call a helper routine that

  1285 // will do the normal VM entry. We do it this way so that we can see if the nmethod

  1286 // we looked up the handler for has been deoptimized in the meantime. If it has been

  1287 // we must not use the handler and instead return the deopt blob.

  1288 address OptoRuntime::handle_exception_C(JavaThread* thread) {

  1289 //

  1290 // We are in Java not VM and in debug mode we have a NoHandleMark

  1291 //

  1292 #ifndef PRODUCT

  1293   SharedRuntime::_find_handler_ctr++;          // find exception handler

  1294 #endif

  1295   debug_only(NoHandleMark __hm;)

  1296   nmethod* nm = NULL;

  1297   address handler_address = NULL;

  1298   {

  1299     // Enter the VM

  1301     ResetNoHandleMark rnhm;

  1302     handler_address = handle_exception_C_helper(thread, nm);

  1303   }

  1305   // Back in java: Use no oops, DON'T safepoint

  1307   // Now check to see if the handler we are returning is in a now

  1308   // deoptimized frame

  1310   if (nm != NULL) {

  1311     RegisterMap map(thread, false);

  1312     frame caller = thread->last_frame().sender(&map);

  1313 #ifdef ASSERT

  1314     assert(caller.is_compiled_frame(), "must be");

  1315 #endif // ASSERT

  1316     if (caller.is_deoptimized_frame()) {

  1317       handler_address = SharedRuntime::deopt_blob()->unpack_with_exception();

  1318     }

  1319   }

  1320   return handler_address;

  1321 }

  1323 //------------------------------rethrow----------------------------------------

  1324 // We get here after compiled code has executed a 'RethrowNode'.  The callee

  1325 // is either throwing or rethrowing an exception.  The callee-save registers

  1326 // have been restored, synchronized objects have been unlocked and the callee

  1327 // stack frame has been removed.  The return address was passed in.

  1328 // Exception oop is passed as the 1st argument.  This routine is then called

  1329 // from the stub.  On exit, we know where to jump in the caller's code.

  1330 // After this C code exits, the stub will pop his frame and end in a jump

  1331 // (instead of a return).  We enter the caller's default handler.

  1332 //

  1333 // This must be JRT_LEAF:

  1334 //     - caller will not change its state as we cannot block on exit,

  1335 //       therefore raw_exception_handler_for_return_address is all it takes

  1336 //       to handle deoptimized blobs

  1337 //

  1338 // However, there needs to be a safepoint check in the middle!  So compiled

  1339 // safepoints are completely watertight.

  1340 //

  1341 // Thus, it cannot be a leaf since it contains the No_GC_Verifier.

  1342 //

  1343 // *THIS IS NOT RECOMMENDED PROGRAMMING STYLE*

  1344 //

  1345 address OptoRuntime::rethrow_C(oopDesc* exception, JavaThread* thread, address ret_pc) {

  1346 #ifndef PRODUCT

  1347   SharedRuntime::_rethrow_ctr++;               // count rethrows

  1348 #endif

  1349   assert (exception != NULL, "should have thrown a NULLPointerException");

  1350 #ifdef ASSERT

  1351   if (!(exception->is_a(SystemDictionary::Throwable_klass()))) {

  1352     // should throw an exception here

  1353     ShouldNotReachHere();

  1354   }

  1355 #endif

  1357   thread->set_vm_result(exception);

  1358   // Frame not compiled (handles deoptimization blob)

  1359   return SharedRuntime::raw_exception_handler_for_return_address(thread, ret_pc);

  1360 }

  1363 const TypeFunc *OptoRuntime::rethrow_Type() {

  1364   // create input type (domain)

  1365   const Type **fields = TypeTuple::fields(1);

  1366   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop

  1367   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields);

  1369   // create result type (range)

  1370   fields = TypeTuple::fields(1);

  1371   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop

  1372   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);

  1374   return TypeFunc::make(domain, range);

  1375 }

  1378 void OptoRuntime::deoptimize_caller_frame(JavaThread *thread, bool doit) {

  1379   // Deoptimize the caller before continuing, as the compiled

  1380   // exception handler table may not be valid.

  1381   if (!StressCompiledExceptionHandlers && doit) {

  1382     deoptimize_caller_frame(thread);

  1383   }

  1384 }

  1386 void OptoRuntime::deoptimize_caller_frame(JavaThread *thread) {

  1387   // Called from within the owner thread, so no need for safepoint

  1388   RegisterMap reg_map(thread);

  1389   frame stub_frame = thread->last_frame();

  1390   assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check");

  1391   frame caller_frame = stub_frame.sender(&reg_map);

  1393   // Deoptimize the caller frame.

  1394   Deoptimization::deoptimize_frame(thread, caller_frame.id());

  1395 }

  1398 bool OptoRuntime::is_deoptimized_caller_frame(JavaThread *thread) {

  1399   // Called from within the owner thread, so no need for safepoint

  1400   RegisterMap reg_map(thread);

  1401   frame stub_frame = thread->last_frame();

  1402   assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check");

  1403   frame caller_frame = stub_frame.sender(&reg_map);

  1404   return caller_frame.is_deoptimized_frame();

  1405 }

  1408 const TypeFunc *OptoRuntime::register_finalizer_Type() {

  1409   // create input type (domain)

  1410   const Type **fields = TypeTuple::fields(1);

  1411   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL;  // oop;          Receiver

  1412   // // The JavaThread* is passed to each routine as the last argument

  1413   // fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL;  // JavaThread *; Executing thread

  1414   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields);

  1416   // create result type (range)

  1417   fields = TypeTuple::fields(0);

  1419   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);

  1421   return TypeFunc::make(domain,range);

  1422 }

  1425 //-----------------------------------------------------------------------------

  1426 // Dtrace support.  entry and exit probes have the same signature

  1427 const TypeFunc *OptoRuntime::dtrace_method_entry_exit_Type() {

  1428   // create input type (domain)

  1429   const Type **fields = TypeTuple::fields(2);

  1430   fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage

  1431   fields[TypeFunc::Parms+1] = TypeMetadataPtr::BOTTOM;  // Method*;    Method we are entering

  1432   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);

  1434   // create result type (range)

  1435   fields = TypeTuple::fields(0);

  1437   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);

  1439   return TypeFunc::make(domain,range);

  1440 }

  1442 const TypeFunc *OptoRuntime::dtrace_object_alloc_Type() {

  1443   // create input type (domain)

  1444   const Type **fields = TypeTuple::fields(2);

  1445   fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage

  1446   fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL;  // oop;    newly allocated object

  1448   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);

  1450   // create result type (range)

  1451   fields = TypeTuple::fields(0);

  1453   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);

  1455   return TypeFunc::make(domain,range);

  1456 }

  1459 JRT_ENTRY_NO_ASYNC(void, OptoRuntime::register_finalizer(oopDesc* obj, JavaThread* thread))

  1460   assert(obj->is_oop(), "must be a valid oop");

  1461   assert(obj->klass()->has_finalizer(), "shouldn't be here otherwise");

  1462   InstanceKlass::register_finalizer(instanceOop(obj), CHECK);

  1463 JRT_END

  1465 //-----------------------------------------------------------------------------

  1467 NamedCounter * volatile OptoRuntime::_named_counters = NULL;

  1469 //

  1470 // dump the collected NamedCounters.

  1471 //

  1472 void OptoRuntime::print_named_counters() {

  1473   int total_lock_count = 0;

  1474   int eliminated_lock_count = 0;

  1476   NamedCounter* c = _named_counters;

  1477   while (c) {

  1478     if (c->tag() == NamedCounter::LockCounter || c->tag() == NamedCounter::EliminatedLockCounter) {

  1479       int count = c->count();

  1480       if (count > 0) {

  1481         bool eliminated = c->tag() == NamedCounter::EliminatedLockCounter;

  1482         if (Verbose) {

  1483           tty->print_cr("%d %s%s", count, c->name(), eliminated ? " (eliminated)" : "");

  1484         }

  1485         total_lock_count += count;

  1486         if (eliminated) {

  1487           eliminated_lock_count += count;

  1488         }

  1489       }

  1490     } else if (c->tag() == NamedCounter::BiasedLockingCounter) {

  1491       BiasedLockingCounters* blc = ((BiasedLockingNamedCounter*)c)->counters();

  1492       if (blc->nonzero()) {

  1493         tty->print_cr("%s", c->name());

  1494         blc->print_on(tty);

  1495       }

  1496 #if INCLUDE_RTM_OPT

  1497     } else if (c->tag() == NamedCounter::RTMLockingCounter) {

  1498       RTMLockingCounters* rlc = ((RTMLockingNamedCounter*)c)->counters();

  1499       if (rlc->nonzero()) {

  1500         tty->print_cr("%s", c->name());

  1501         rlc->print_on(tty);

  1502       }

  1503 #endif

  1504     }

  1505     c = c->next();

  1506   }

  1507   if (total_lock_count > 0) {

  1508     tty->print_cr("dynamic locks: %d", total_lock_count);

  1509     if (eliminated_lock_count) {

  1510       tty->print_cr("eliminated locks: %d (%d%%)", eliminated_lock_count,

  1511                     (int)(eliminated_lock_count * 100.0 / total_lock_count));

  1512     }

  1513   }

  1514 }

  1516 //

  1517 //  Allocate a new NamedCounter.  The JVMState is used to generate the

  1518 //  name which consists of method@line for the inlining tree.

  1519 //

  1521 NamedCounter* OptoRuntime::new_named_counter(JVMState* youngest_jvms, NamedCounter::CounterTag tag) {

  1522   int max_depth = youngest_jvms->depth();

  1524   // Visit scopes from youngest to oldest.

  1525   bool first = true;

  1526   stringStream st;

  1527   for (int depth = max_depth; depth >= 1; depth--) {

  1528     JVMState* jvms = youngest_jvms->of_depth(depth);

  1529     ciMethod* m = jvms->has_method() ? jvms->method() : NULL;

  1530     if (!first) {

  1531       st.print(" ");

  1532     } else {

  1533       first = false;

  1534     }

  1535     int bci = jvms->bci();

  1536     if (bci < 0) bci = 0;

  1537     st.print("%s.%s@%d", m->holder()->name()->as_utf8(), m->name()->as_utf8(), bci);

  1538     // To print linenumbers instead of bci use: m->line_number_from_bci(bci)

  1539   }

  1540   NamedCounter* c;

  1541   if (tag == NamedCounter::BiasedLockingCounter) {

  1542     c = new BiasedLockingNamedCounter(strdup(st.as_string()));

  1543   } else if (tag == NamedCounter::RTMLockingCounter) {

  1544     c = new RTMLockingNamedCounter(strdup(st.as_string()));

  1545   } else {

  1546     c = new NamedCounter(strdup(st.as_string()), tag);

  1547   }

  1549   // atomically add the new counter to the head of the list.  We only

  1550   // add counters so this is safe.

  1551   NamedCounter* head;

  1552   do {

  1553     c->set_next(NULL);

  1554     head = _named_counters;

  1555     c->set_next(head);

  1556   } while (Atomic::cmpxchg_ptr(c, &_named_counters, head) != head);

  1557   return c;

  1558 }

  1560 //-----------------------------------------------------------------------------

  1561 // Non-product code

  1562 #ifndef PRODUCT

  1564 int trace_exception_counter = 0;

  1565 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) {

  1566   ttyLocker ttyl;

  1567   trace_exception_counter++;

  1568   tty->print("%d [Exception (%s): ", trace_exception_counter, msg);

  1569   exception_oop->print_value();

  1570   tty->print(" in ");

  1571   CodeBlob* blob = CodeCache::find_blob(exception_pc);

  1572   if (blob->is_nmethod()) {

  1573     nmethod* nm = blob->as_nmethod_or_null();

  1574     nm->method()->print_value();

  1575   } else if (blob->is_runtime_stub()) {

  1576     tty->print("<runtime-stub>");

  1577   } else {

  1578     tty->print("<unknown>");

  1579   }

  1580   tty->print(" at " INTPTR_FORMAT,  p2i(exception_pc));

  1581   tty->print_cr("]");

  1582 }

  1584 #endif  // PRODUCT

  1587 # ifdef ENABLE_ZAP_DEAD_LOCALS

  1588 // Called from call sites in compiled code with oop maps (actually safepoints)

  1589 // Zaps dead locals in first java frame.

  1590 // Is entry because may need to lock to generate oop maps

  1591 // Currently, only used for compiler frames, but someday may be used

  1592 // for interpreter frames, too.

  1594 int OptoRuntime::ZapDeadCompiledLocals_count = 0;

  1596 // avoid pointers to member funcs with these helpers

  1597 static bool is_java_frame(  frame* f) { return f->is_java_frame();   }

  1598 static bool is_native_frame(frame* f) { return f->is_native_frame(); }

  1601 void OptoRuntime::zap_dead_java_or_native_locals(JavaThread* thread,

  1602                                                 bool (*is_this_the_right_frame_to_zap)(frame*)) {

  1603   assert(JavaThread::current() == thread, "is this needed?");

  1605   if ( !ZapDeadCompiledLocals )  return;

  1607   bool skip = false;

  1609        if ( ZapDeadCompiledLocalsFirst  ==  0  ) ; // nothing special

  1610   else if ( ZapDeadCompiledLocalsFirst  >  ZapDeadCompiledLocals_count )  skip = true;

  1611   else if ( ZapDeadCompiledLocalsFirst  == ZapDeadCompiledLocals_count )

  1612     warning("starting zapping after skipping");

  1614        if ( ZapDeadCompiledLocalsLast  ==  -1  ) ; // nothing special

  1615   else if ( ZapDeadCompiledLocalsLast  <   ZapDeadCompiledLocals_count )  skip = true;

  1616   else if ( ZapDeadCompiledLocalsLast  ==  ZapDeadCompiledLocals_count )

  1617     warning("about to zap last zap");

  1619   ++ZapDeadCompiledLocals_count; // counts skipped zaps, too

  1621   if ( skip )  return;

  1623   // find java frame and zap it

  1625   for (StackFrameStream sfs(thread);  !sfs.is_done();  sfs.next()) {

  1626     if (is_this_the_right_frame_to_zap(sfs.current()) ) {

  1627       sfs.current()->zap_dead_locals(thread, sfs.register_map());

  1628       return;

  1629     }

  1630   }

  1631   warning("no frame found to zap in zap_dead_Java_locals_C");

  1632 }

  1634 JRT_LEAF(void, OptoRuntime::zap_dead_Java_locals_C(JavaThread* thread))

  1635   zap_dead_java_or_native_locals(thread, is_java_frame);

  1636 JRT_END

  1638 // The following does not work because for one thing, the

  1639 // thread state is wrong; it expects java, but it is native.

  1640 // Also, the invariants in a native stub are different and

  1641 // I'm not sure it is safe to have a MachCalRuntimeDirectNode

  1642 // in there.

  1643 // So for now, we do not zap in native stubs.

  1645 JRT_LEAF(void, OptoRuntime::zap_dead_native_locals_C(JavaThread* thread))

  1646   zap_dead_java_or_native_locals(thread, is_native_frame);

  1647 JRT_END

  1649 # endif

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

src/share/vm/opto/runtime.cpp@bcccbecdde63

src/share/vm/opto/runtime.cpp