jdk8-mips64-public/hotspot: src/share/vm/opto/runtime.cpp@44ef77ad417c

8073108: Use x86 and SPARC CPU instructions for GHASH acceleration
Reviewed-by: kvn, jrose, phh

     1 /*

     2  * Copyright (c) 1998, 2019, 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

    95 // GHASH block processing

    96 const TypeFunc* OptoRuntime::ghash_processBlocks_Type() {

    97     int argcnt = 4;

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

   100     int argp = TypeFunc::Parms;

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

   102     fields[argp++] = TypePtr::NOTNULL;    // subkeyH

   103     fields[argp++] = TypePtr::NOTNULL;    // data

   104     fields[argp++] = TypeInt::INT;        // blocks

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

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

   108     // result type needed

   109     fields = TypeTuple::fields(1);

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

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

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

   113 }

   115 // Compiled code entry points

   116 address OptoRuntime::_new_instance_Java                           = NULL;

   117 address OptoRuntime::_new_array_Java                              = NULL;

   118 address OptoRuntime::_new_array_nozero_Java                       = NULL;

   119 address OptoRuntime::_multianewarray2_Java                        = NULL;

   120 address OptoRuntime::_multianewarray3_Java                        = NULL;

   121 address OptoRuntime::_multianewarray4_Java                        = NULL;

   122 address OptoRuntime::_multianewarray5_Java                        = NULL;

   123 address OptoRuntime::_multianewarrayN_Java                        = NULL;

   124 address OptoRuntime::_g1_wb_pre_Java                              = NULL;

   125 address OptoRuntime::_g1_wb_post_Java                             = NULL;

   126 address OptoRuntime::_vtable_must_compile_Java                    = NULL;

   127 address OptoRuntime::_complete_monitor_locking_Java               = NULL;

   128 address OptoRuntime::_rethrow_Java                                = NULL;

   130 address OptoRuntime::_slow_arraycopy_Java                         = NULL;

   131 address OptoRuntime::_register_finalizer_Java                     = NULL;

   133 # ifdef ENABLE_ZAP_DEAD_LOCALS

   134 address OptoRuntime::_zap_dead_Java_locals_Java                   = NULL;

   135 address OptoRuntime::_zap_dead_native_locals_Java                 = NULL;

   136 # endif

   138 ExceptionBlob* OptoRuntime::_exception_blob;

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

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

   142 #ifdef ASSERT

   143 static bool check_compiled_frame(JavaThread* thread) {

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

   145   RegisterMap map(thread, false);

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

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

   148   return true;

   149 }

   150 #endif // ASSERT

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

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

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

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

   159   generate_exception_blob();

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

   162   //

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

   164   // -------------------------------------------------------------------------------------------------------------------------------

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

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

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

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

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

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

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

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

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

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

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

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

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

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

   181 # ifdef ENABLE_ZAP_DEAD_LOCALS

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

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

   184 # endif

   185   return true;

   186 }

   188 #undef gen

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

   192 address OptoRuntime::generate_stub( ciEnv* env,

   193                                     TypeFunc_generator gen, address C_function,

   194                                     const char *name, int is_fancy_jump,

   195                                     bool pass_tls,

   196                                     bool save_argument_registers,

   197                                     bool return_pc ) {

   198   ResourceMark rm;

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

   200   return  C.stub_entry_point();

   201 }

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

   204 #ifndef PRODUCT

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

   206   RuntimeStub* rs =(RuntimeStub *)cb;

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

   208   return rs->name();

   209 #else

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

   211   return "runtime stub";

   212 #endif

   213 }

   216 //=============================================================================

   217 // Opto compiler runtime routines

   218 //=============================================================================

   221 //=============================allocation======================================

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

   223 // and try allocation again.

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

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

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

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

   229   // GC may take any compensating steps.

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

   232   oop new_obj = thread->vm_result();

   233   if (new_obj == NULL)  return;

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

   236          "compiler must check this first");

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

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

   239   thread->set_vm_result(new_obj);

   240 }

   242 // object allocation

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

   244   JRT_BLOCK;

   245 #ifndef PRODUCT

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

   247 #endif

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

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

   251   int lh = klass->layout_helper();

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

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

   254     klass->check_valid_for_instantiation(false, THREAD);

   255     if (!HAS_PENDING_EXCEPTION) {

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

   257     }

   258   }

   260   if (!HAS_PENDING_EXCEPTION) {

   261     // Scavenge and allocate an instance.

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

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

   264     thread->set_vm_result(result);

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

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

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

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

   270   }

   272   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   273   JRT_BLOCK_END;

   275   if (GraphKit::use_ReduceInitialCardMarks()) {

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

   277     new_store_pre_barrier(thread);

   278   }

   279 JRT_END

   282 // array allocation

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

   284   JRT_BLOCK;

   285 #ifndef PRODUCT

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

   287 #endif

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

   290   // Scavenge and allocate an instance.

   291   oop result;

   293   if (array_type->oop_is_typeArray()) {

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

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

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

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

   298   } else {

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

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

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

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

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

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

   305   }

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

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

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

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

   311   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   312   thread->set_vm_result(result);

   313   JRT_BLOCK_END;

   315   if (GraphKit::use_ReduceInitialCardMarks()) {

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

   317     new_store_pre_barrier(thread);

   318   }

   319 JRT_END

   321 // array allocation without zeroing

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

   323   JRT_BLOCK;

   324 #ifndef PRODUCT

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

   326 #endif

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

   329   // Scavenge and allocate an instance.

   330   oop result;

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

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

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

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

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

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

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

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

   341   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   342   thread->set_vm_result(result);

   343   JRT_BLOCK_END;

   345   if (GraphKit::use_ReduceInitialCardMarks()) {

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

   347     new_store_pre_barrier(thread);

   348   }

   350   oop result = thread->vm_result();

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

   352       is_deoptimized_caller_frame(thread)) {

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

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

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

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

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

   358     const size_t aligned_hs = align_object_offset(hs);

   359     HeapWord* obj = (HeapWord*)result;

   360     if (aligned_hs > hs) {

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

   362     }

   363     // Optimized zeroing.

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

   365   }

   367 JRT_END

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

   371 // multianewarray for 2 dimensions

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

   373 #ifndef PRODUCT

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

   375 #endif

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

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

   378   jint dims[2];

   379   dims[0] = len1;

   380   dims[1] = len2;

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

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

   383   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   384   thread->set_vm_result(obj);

   385 JRT_END

   387 // multianewarray for 3 dimensions

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

   389 #ifndef PRODUCT

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

   391 #endif

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

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

   394   jint dims[3];

   395   dims[0] = len1;

   396   dims[1] = len2;

   397   dims[2] = len3;

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

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

   400   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   401   thread->set_vm_result(obj);

   402 JRT_END

   404 // multianewarray for 4 dimensions

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

   406 #ifndef PRODUCT

   407   SharedRuntime::_multi4_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[4];

   412   dims[0] = len1;

   413   dims[1] = len2;

   414   dims[2] = len3;

   415   dims[3] = len4;

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

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

   418   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   419   thread->set_vm_result(obj);

   420 JRT_END

   422 // multianewarray for 5 dimensions

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

   424 #ifndef PRODUCT

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

   426 #endif

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

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

   429   jint dims[5];

   430   dims[0] = len1;

   431   dims[1] = len2;

   432   dims[2] = len3;

   433   dims[3] = len4;

   434   dims[4] = len5;

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

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

   437   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   438   thread->set_vm_result(obj);

   439 JRT_END

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

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

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

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

   446   ResourceMark rm;

   447   jint len = dims->length();

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

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

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

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

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

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

   455   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   456   thread->set_vm_result(obj);

   457 JRT_END

   460 const TypeFunc *OptoRuntime::new_instance_Type() {

   461   // create input type (domain)

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

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

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

   466   // create result type (range)

   467   fields = TypeTuple::fields(1);

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

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

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

   473 }

   476 const TypeFunc *OptoRuntime::athrow_Type() {

   477   // create input type (domain)

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

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

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

   482   // create result type (range)

   483   fields = TypeTuple::fields(0);

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

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

   488 }

   491 const TypeFunc *OptoRuntime::new_array_Type() {

   492   // create input type (domain)

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

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

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

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

   498   // create result type (range)

   499   fields = TypeTuple::fields(1);

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

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

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

   505 }

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

   508   // create input type (domain)

   509   const int nargs = ndim + 1;

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

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

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

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

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

   516   // create result type (range)

   517   fields = TypeTuple::fields(1);

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

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

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

   522 }

   524 const TypeFunc *OptoRuntime::multianewarray2_Type() {

   525   return multianewarray_Type(2);

   526 }

   528 const TypeFunc *OptoRuntime::multianewarray3_Type() {

   529   return multianewarray_Type(3);

   530 }

   532 const TypeFunc *OptoRuntime::multianewarray4_Type() {

   533   return multianewarray_Type(4);

   534 }

   536 const TypeFunc *OptoRuntime::multianewarray5_Type() {

   537   return multianewarray_Type(5);

   538 }

   540 const TypeFunc *OptoRuntime::multianewarrayN_Type() {

   541   // create input type (domain)

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

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

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

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

   547   // create result type (range)

   548   fields = TypeTuple::fields(1);

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

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

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

   553 }

   555 const TypeFunc *OptoRuntime::g1_wb_pre_Type() {

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

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

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

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

   561   // create result type (range)

   562   fields = TypeTuple::fields(0);

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

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

   566 }

   568 const TypeFunc *OptoRuntime::g1_wb_post_Type() {

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

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

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

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

   575   // create result type (range)

   576   fields = TypeTuple::fields(0);

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

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

   580 }

   582 const TypeFunc *OptoRuntime::uncommon_trap_Type() {

   583   // create input type (domain)

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

   585   // Symbol* name of class to be loaded

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

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

   589   // create result type (range)

   590   fields = TypeTuple::fields(0);

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

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

   594 }

   596 # ifdef ENABLE_ZAP_DEAD_LOCALS

   597 // Type used for stub generation for zap_dead_locals.

   598 // No inputs or outputs

   599 const TypeFunc *OptoRuntime::zap_dead_locals_Type() {

   600   // create input type (domain)

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

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

   604   // create result type (range)

   605   fields = TypeTuple::fields(0);

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

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

   609 }

   610 # endif

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

   614 // Monitor Handling

   615 const TypeFunc *OptoRuntime::complete_monitor_enter_Type() {

   616   // create input type (domain)

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

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

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

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

   622   // create result type (range)

   623   fields = TypeTuple::fields(0);

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

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

   628 }

   631 //-----------------------------------------------------------------------------

   632 const TypeFunc *OptoRuntime::complete_monitor_exit_Type() {

   633   // create input type (domain)

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

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

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

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

   639   // create result type (range)

   640   fields = TypeTuple::fields(0);

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

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

   645 }

   647 const TypeFunc* OptoRuntime::flush_windows_Type() {

   648   // create input type (domain)

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

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

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

   653   // create result type

   654   fields = TypeTuple::fields(1);

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

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

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

   659 }

   661 const TypeFunc* OptoRuntime::l2f_Type() {

   662   // create input type (domain)

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

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

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

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

   668   // create result type (range)

   669   fields = TypeTuple::fields(1);

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

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

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

   674 }

   676 const TypeFunc* OptoRuntime::modf_Type() {

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

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

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

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

   682   // create result type (range)

   683   fields = TypeTuple::fields(1);

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

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

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

   689 }

   691 const TypeFunc *OptoRuntime::Math_D_D_Type() {

   692   // create input type (domain)

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

   694   // Symbol* name of class to be loaded

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

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

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

   699   // create result type (range)

   700   fields = TypeTuple::fields(2);

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

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

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

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

   706 }

   708 const TypeFunc* OptoRuntime::Math_DD_D_Type() {

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

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

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

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

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

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

   716   // create result type (range)

   717   fields = TypeTuple::fields(2);

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

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

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

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

   723 }

   725 //-------------- currentTimeMillis, currentTimeNanos, etc

   727 const TypeFunc* OptoRuntime::void_long_Type() {

   728   // create input type (domain)

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

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

   732   // create result type (range)

   733   fields = TypeTuple::fields(2);

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

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

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

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

   739 }

   741 // arraycopy stub variations:

   742 enum ArrayCopyType {

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

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

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

   746   ac_generic                    //  int(ptr, int, ptr, int, int)

   747 };

   749 static const TypeFunc* make_arraycopy_Type(ArrayCopyType act) {

   750   // create input type (domain)

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

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

   753   int argcnt = num_args;

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

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

   756   int argp = TypeFunc::Parms;

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

   758   if (num_size_args == 0) {

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

   760   }

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

   762   if (num_size_args == 0) {

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

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

   765   }

   766   while (num_size_args-- > 0) {

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

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

   769   }

   770   if (act == ac_checkcast) {

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

   772   }

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

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

   776   // create result type if needed

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

   778   fields = TypeTuple::fields(1);

   779   if (retcnt == 0)

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

   781   else

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

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

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

   785 }

   787 const TypeFunc* OptoRuntime::fast_arraycopy_Type() {

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

   789   return make_arraycopy_Type(ac_fast);

   790 }

   792 const TypeFunc* OptoRuntime::checkcast_arraycopy_Type() {

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

   794   return make_arraycopy_Type(ac_checkcast);

   795 }

   797 const TypeFunc* OptoRuntime::slow_arraycopy_Type() {

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

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

   800   return make_arraycopy_Type(ac_slow);

   801 }

   803 const TypeFunc* OptoRuntime::generic_arraycopy_Type() {

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

   805   return make_arraycopy_Type(ac_generic);

   806 }

   809 const TypeFunc* OptoRuntime::array_fill_Type() {

   810   const Type** fields;

   811   int argp = TypeFunc::Parms;

   812   if (CCallingConventionRequiresIntsAsLongs) {

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

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

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

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

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

   818   } else {

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

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

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

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

   823   }

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

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

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

   828   // create result type

   829   fields = TypeTuple::fields(1);

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

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

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

   834 }

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

   837 const TypeFunc* OptoRuntime::aescrypt_block_Type() {

   838   // create input type (domain)

   839   int num_args      = 3;

   840   if (Matcher::pass_original_key_for_aes()) {

   841     num_args = 4;

   842   }

   843   int argcnt = num_args;

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

   845   int argp = TypeFunc::Parms;

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

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

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

   849   if (Matcher::pass_original_key_for_aes()) {

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

   851   }

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

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

   855   // no result type needed

   856   fields = TypeTuple::fields(1);

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

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

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

   860 }

   862 /**

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

   864  */

   865 const TypeFunc* OptoRuntime::updateBytesCRC32_Type() {

   866   // create input type (domain)

   867   int num_args = 3;

   868   int argcnt = num_args;

   869   if (CCallingConventionRequiresIntsAsLongs) {

   870     argcnt += 2;

   871   }

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

   873   int argp = TypeFunc::Parms;

   874   if (CCallingConventionRequiresIntsAsLongs) {

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

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

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

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

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

   880   } else {

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

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

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

   884   }

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

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

   888   // result type needed

   889   fields = TypeTuple::fields(1);

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

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

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

   893 }

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

   896 const TypeFunc* OptoRuntime::cipherBlockChaining_aescrypt_Type() {

   897   // create input type (domain)

   898   int num_args      = 5;

   899   if (Matcher::pass_original_key_for_aes()) {

   900     num_args = 6;

   901   }

   902   int argcnt = num_args;

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

   904   int argp = TypeFunc::Parms;

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

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

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

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

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

   910   if (Matcher::pass_original_key_for_aes()) {

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

   912   }

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

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

   916   // returning cipher len (int)

   917   fields = TypeTuple::fields(1);

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

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

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

   921 }

   923 /*

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

   925  */

   926 const TypeFunc* OptoRuntime::sha_implCompress_Type() {

   927   // create input type (domain)

   928   int num_args = 2;

   929   int argcnt = num_args;

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

   931   int argp = TypeFunc::Parms;

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

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

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

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

   937   // no result type needed

   938   fields = TypeTuple::fields(1);

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

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

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

   942 }

   944 /*

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

   946  */

   947 const TypeFunc* OptoRuntime::digestBase_implCompressMB_Type() {

   948   // create input type (domain)

   949   int num_args = 4;

   950   int argcnt = num_args;

   951   if(CCallingConventionRequiresIntsAsLongs) {

   952     argcnt += 2;

   953   }

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

   955   int argp = TypeFunc::Parms;

   956   if(CCallingConventionRequiresIntsAsLongs) {

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

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

   959     fields[argp++] = TypeLong::LONG;   // ofs

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

   961     fields[argp++] = TypeLong::LONG;   // limit

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

   963   } else {

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

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

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

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

   968   }

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

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

   972   // returning ofs (int)

   973   fields = TypeTuple::fields(1);

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

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

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

   977 }

   979 const TypeFunc* OptoRuntime::multiplyToLen_Type() {

   980   // create input type (domain)

   981   int num_args      = 6;

   982   int argcnt = num_args;

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

   984   int argp = TypeFunc::Parms;

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

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

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

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

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

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

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

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

   994   // no result type needed

   995   fields = TypeTuple::fields(1);

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

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

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

   999 }

  1001 const TypeFunc* OptoRuntime::squareToLen_Type() {

  1002   // create input type (domain)

  1003   int num_args      = 4;

  1004   int argcnt = num_args;

  1005   const Type** fields = TypeTuple::fields(argcnt);

  1006   int argp = TypeFunc::Parms;

  1007   fields[argp++] = TypePtr::NOTNULL;    // x

  1008   fields[argp++] = TypeInt::INT;        // len

  1009   fields[argp++] = TypePtr::NOTNULL;    // z

  1010   fields[argp++] = TypeInt::INT;        // zlen

  1011   assert(argp == TypeFunc::Parms+argcnt, "correct decoding");

  1012   const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);

  1014   // no result type needed

  1015   fields = TypeTuple::fields(1);

  1016   fields[TypeFunc::Parms+0] = NULL;

  1017   const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields);

  1018   return TypeFunc::make(domain, range);

  1019 }

  1021 // for mulAdd calls, 2 pointers and 3 ints, returning int

  1022 const TypeFunc* OptoRuntime::mulAdd_Type() {

  1023   // create input type (domain)

  1024   int num_args      = 5;

  1025   int argcnt = num_args;

  1026   const Type** fields = TypeTuple::fields(argcnt);

  1027   int argp = TypeFunc::Parms;

  1028   fields[argp++] = TypePtr::NOTNULL;    // out

  1029   fields[argp++] = TypePtr::NOTNULL;    // in

  1030   fields[argp++] = TypeInt::INT;        // offset

  1031   fields[argp++] = TypeInt::INT;        // len

  1032   fields[argp++] = TypeInt::INT;        // k

  1033   assert(argp == TypeFunc::Parms+argcnt, "correct decoding");

  1034   const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);

  1036   // returning carry (int)

  1037   fields = TypeTuple::fields(1);

  1038   fields[TypeFunc::Parms+0] = TypeInt::INT;

  1039   const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+1, fields);

  1040   return TypeFunc::make(domain, range);

  1041 }

  1043 const TypeFunc* OptoRuntime::montgomeryMultiply_Type() {

  1044   // create input type (domain)

  1045   int num_args      = 7;

  1046   int argcnt = num_args;

  1047   if (CCallingConventionRequiresIntsAsLongs) {

  1048     argcnt++;                           // additional placeholder

  1049   }

  1050   const Type** fields = TypeTuple::fields(argcnt);

  1051   int argp = TypeFunc::Parms;

  1052   fields[argp++] = TypePtr::NOTNULL;    // a

  1053   fields[argp++] = TypePtr::NOTNULL;    // b

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

  1055   if (CCallingConventionRequiresIntsAsLongs) {

  1056     fields[argp++] = TypeLong::LONG;    // len

  1057     fields[argp++] = TypeLong::HALF;    // placeholder

  1058   } else {

  1059     fields[argp++] = TypeInt::INT;      // len

  1060   }

  1061   fields[argp++] = TypeLong::LONG;      // inv

  1062   fields[argp++] = Type::HALF;

  1063   fields[argp++] = TypePtr::NOTNULL;    // result

  1064   assert(argp == TypeFunc::Parms+argcnt, "correct decoding");

  1065   const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);

  1067   // result type needed

  1068   fields = TypeTuple::fields(1);

  1069   fields[TypeFunc::Parms+0] = TypePtr::NOTNULL;

  1071   const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields);

  1072   return TypeFunc::make(domain, range);

  1073 }

  1075 const TypeFunc* OptoRuntime::montgomerySquare_Type() {

  1076   // create input type (domain)

  1077   int num_args      = 6;

  1078   int argcnt = num_args;

  1079   if (CCallingConventionRequiresIntsAsLongs) {

  1080     argcnt++;                           // additional placeholder

  1081   }

  1082   const Type** fields = TypeTuple::fields(argcnt);

  1083   int argp = TypeFunc::Parms;

  1084   fields[argp++] = TypePtr::NOTNULL;    // a

  1085   fields[argp++] = TypePtr::NOTNULL;    // n

  1086   if (CCallingConventionRequiresIntsAsLongs) {

  1087     fields[argp++] = TypeLong::LONG;    // len

  1088     fields[argp++] = TypeLong::HALF;    // placeholder

  1089   } else {

  1090     fields[argp++] = TypeInt::INT;      // len

  1091   }

  1092   fields[argp++] = TypeLong::LONG;      // inv

  1093   fields[argp++] = Type::HALF;

  1094   fields[argp++] = TypePtr::NOTNULL;    // result

  1095   assert(argp == TypeFunc::Parms+argcnt, "correct decoding");

  1096   const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);

  1098   // result type needed

  1099   fields = TypeTuple::fields(1);

  1100   fields[TypeFunc::Parms+0] = TypePtr::NOTNULL;

  1102   const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields);

  1103   return TypeFunc::make(domain, range);

  1104 }

  1107 //------------- Interpreter state access for on stack replacement

  1108 const TypeFunc* OptoRuntime::osr_end_Type() {

  1109   // create input type (domain)

  1110   const Type **fields = TypeTuple::fields(1);

  1111   fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // OSR temp buf

  1112   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);

  1114   // create result type

  1115   fields = TypeTuple::fields(1);

  1116   // fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // locked oop

  1117   fields[TypeFunc::Parms+0] = NULL; // void

  1118   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);

  1119   return TypeFunc::make(domain, range);

  1120 }

  1122 //-------------- methodData update helpers

  1124 const TypeFunc* OptoRuntime::profile_receiver_type_Type() {

  1125   // create input type (domain)

  1126   const Type **fields = TypeTuple::fields(2);

  1127   fields[TypeFunc::Parms+0] = TypeAryPtr::NOTNULL;    // methodData pointer

  1128   fields[TypeFunc::Parms+1] = TypeInstPtr::BOTTOM;    // receiver oop

  1129   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);

  1131   // create result type

  1132   fields = TypeTuple::fields(1);

  1133   fields[TypeFunc::Parms+0] = NULL; // void

  1134   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);

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

  1136 }

  1138 JRT_LEAF(void, OptoRuntime::profile_receiver_type_C(DataLayout* data, oopDesc* receiver))

  1139   if (receiver == NULL) return;

  1140   Klass* receiver_klass = receiver->klass();

  1142   intptr_t* mdp = ((intptr_t*)(data)) + DataLayout::header_size_in_cells();

  1143   int empty_row = -1;           // free row, if any is encountered

  1145   // ReceiverTypeData* vc = new ReceiverTypeData(mdp);

  1146   for (uint row = 0; row < ReceiverTypeData::row_limit(); row++) {

  1147     // if (vc->receiver(row) == receiver_klass)

  1148     int receiver_off = ReceiverTypeData::receiver_cell_index(row);

  1149     intptr_t row_recv = *(mdp + receiver_off);

  1150     if (row_recv == (intptr_t) receiver_klass) {

  1151       // vc->set_receiver_count(row, vc->receiver_count(row) + DataLayout::counter_increment);

  1152       int count_off = ReceiverTypeData::receiver_count_cell_index(row);

  1153       *(mdp + count_off) += DataLayout::counter_increment;

  1154       return;

  1155     } else if (row_recv == 0) {

  1156       // else if (vc->receiver(row) == NULL)

  1157       empty_row = (int) row;

  1158     }

  1159   }

  1161   if (empty_row != -1) {

  1162     int receiver_off = ReceiverTypeData::receiver_cell_index(empty_row);

  1163     // vc->set_receiver(empty_row, receiver_klass);

  1164     *(mdp + receiver_off) = (intptr_t) receiver_klass;

  1165     // vc->set_receiver_count(empty_row, DataLayout::counter_increment);

  1166     int count_off = ReceiverTypeData::receiver_count_cell_index(empty_row);

  1167     *(mdp + count_off) = DataLayout::counter_increment;

  1168   } else {

  1169     // Receiver did not match any saved receiver and there is no empty row for it.

  1170     // Increment total counter to indicate polymorphic case.

  1171     intptr_t* count_p = (intptr_t*)(((byte*)(data)) + in_bytes(CounterData::count_offset()));

  1172     *count_p += DataLayout::counter_increment;

  1173   }

  1174 JRT_END

  1176 //-------------------------------------------------------------------------------------

  1177 // register policy

  1179 bool OptoRuntime::is_callee_saved_register(MachRegisterNumbers reg) {

  1180   assert(reg >= 0 && reg < _last_Mach_Reg, "must be a machine register");

  1181   switch (register_save_policy[reg]) {

  1182     case 'C': return false; //SOC

  1183     case 'E': return true ; //SOE

  1184     case 'N': return false; //NS

  1185     case 'A': return false; //AS

  1186   }

  1187   ShouldNotReachHere();

  1188   return false;

  1189 }

  1191 //-----------------------------------------------------------------------

  1192 // Exceptions

  1193 //

  1195 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) PRODUCT_RETURN;

  1197 // The method is an entry that is always called by a C++ method not

  1198 // directly from compiled code. Compiled code will call the C++ method following.

  1199 // We can't allow async exception to be installed during  exception processing.

  1200 JRT_ENTRY_NO_ASYNC(address, OptoRuntime::handle_exception_C_helper(JavaThread* thread, nmethod* &nm))

  1202   // Do not confuse exception_oop with pending_exception. The exception_oop

  1203   // is only used to pass arguments into the method. Not for general

  1204   // exception handling.  DO NOT CHANGE IT to use pending_exception, since

  1205   // the runtime stubs checks this on exit.

  1206   assert(thread->exception_oop() != NULL, "exception oop is found");

  1207   address handler_address = NULL;

  1209   Handle exception(thread, thread->exception_oop());

  1210   address pc = thread->exception_pc();

  1212   // Clear out the exception oop and pc since looking up an

  1213   // exception handler can cause class loading, which might throw an

  1214   // exception and those fields are expected to be clear during

  1215   // normal bytecode execution.

  1216   thread->clear_exception_oop_and_pc();

  1218   if (TraceExceptions) {

  1219     trace_exception(exception(), pc, "");

  1220   }

  1222   // for AbortVMOnException flag

  1223   NOT_PRODUCT(Exceptions::debug_check_abort(exception));

  1225 #ifdef ASSERT

  1226   if (!(exception->is_a(SystemDictionary::Throwable_klass()))) {

  1227     // should throw an exception here

  1228     ShouldNotReachHere();

  1229   }

  1230 #endif

  1232   // new exception handling: this method is entered only from adapters

  1233   // exceptions from compiled java methods are handled in compiled code

  1234   // using rethrow node

  1236   nm = CodeCache::find_nmethod(pc);

  1237   assert(nm != NULL, "No NMethod found");

  1238   if (nm->is_native_method()) {

  1239     fatal("Native method should not have path to exception handling");

  1240   } else {

  1241     // we are switching to old paradigm: search for exception handler in caller_frame

  1242     // instead in exception handler of caller_frame.sender()

  1244     if (JvmtiExport::can_post_on_exceptions()) {

  1245       // "Full-speed catching" is not necessary here,

  1246       // since we're notifying the VM on every catch.

  1247       // Force deoptimization and the rest of the lookup

  1248       // will be fine.

  1249       deoptimize_caller_frame(thread);

  1250     }

  1252     // Check the stack guard pages.  If enabled, look for handler in this frame;

  1253     // otherwise, forcibly unwind the frame.

  1254     //

  1255     // 4826555: use default current sp for reguard_stack instead of &nm: it's more accurate.

  1256     bool force_unwind = !thread->reguard_stack();

  1257     bool deopting = false;

  1258     if (nm->is_deopt_pc(pc)) {

  1259       deopting = true;

  1260       RegisterMap map(thread, false);

  1261       frame deoptee = thread->last_frame().sender(&map);

  1262       assert(deoptee.is_deoptimized_frame(), "must be deopted");

  1263       // Adjust the pc back to the original throwing pc

  1264       pc = deoptee.pc();

  1265     }

  1267     // If we are forcing an unwind because of stack overflow then deopt is

  1268     // irrelevant since we are throwing the frame away anyway.

  1270     if (deopting && !force_unwind) {

  1271       handler_address = SharedRuntime::deopt_blob()->unpack_with_exception();

  1272     } else {

  1274       handler_address =

  1275         force_unwind ? NULL : nm->handler_for_exception_and_pc(exception, pc);

  1277       if (handler_address == NULL) {

  1278         bool recursive_exception = false;

  1279         handler_address = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true, recursive_exception);

  1280         assert (handler_address != NULL, "must have compiled handler");

  1281         // Update the exception cache only when the unwind was not forced

  1282         // and there didn't happen another exception during the computation of the

  1283         // compiled exception handler. Checking for exception oop equality is not

  1284         // sufficient because some exceptions are pre-allocated and reused.

  1285         if (!force_unwind && !recursive_exception) {

  1286           nm->add_handler_for_exception_and_pc(exception,pc,handler_address);

  1287         }

  1288       } else {

  1289 #ifdef ASSERT

  1290         bool recursive_exception = false;

  1291         address computed_address = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true, recursive_exception);

  1292         assert(recursive_exception || (handler_address == computed_address), err_msg("Handler address inconsistency: " PTR_FORMAT " != " PTR_FORMAT,

  1293                  p2i(handler_address), p2i(computed_address)));

  1294 #endif

  1295       }

  1296     }

  1298     thread->set_exception_pc(pc);

  1299     thread->set_exception_handler_pc(handler_address);

  1301     // Check if the exception PC is a MethodHandle call site.

  1302     thread->set_is_method_handle_return(nm->is_method_handle_return(pc));

  1303   }

  1305   // Restore correct return pc.  Was saved above.

  1306   thread->set_exception_oop(exception());

  1307   return handler_address;

  1309 JRT_END

  1311 // We are entering here from exception_blob

  1312 // If there is a compiled exception handler in this method, we will continue there;

  1313 // otherwise we will unwind the stack and continue at the caller of top frame method

  1314 // Note we enter without the usual JRT wrapper. We will call a helper routine that

  1315 // will do the normal VM entry. We do it this way so that we can see if the nmethod

  1316 // we looked up the handler for has been deoptimized in the meantime. If it has been

  1317 // we must not use the handler and instead return the deopt blob.

  1318 address OptoRuntime::handle_exception_C(JavaThread* thread) {

  1319 //

  1320 // We are in Java not VM and in debug mode we have a NoHandleMark

  1321 //

  1322 #ifndef PRODUCT

  1323   SharedRuntime::_find_handler_ctr++;          // find exception handler

  1324 #endif

  1325   debug_only(NoHandleMark __hm;)

  1326   nmethod* nm = NULL;

  1327   address handler_address = NULL;

  1328   {

  1329     // Enter the VM

  1331     ResetNoHandleMark rnhm;

  1332     handler_address = handle_exception_C_helper(thread, nm);

  1333   }

  1335   // Back in java: Use no oops, DON'T safepoint

  1337   // Now check to see if the handler we are returning is in a now

  1338   // deoptimized frame

  1340   if (nm != NULL) {

  1341     RegisterMap map(thread, false);

  1342     frame caller = thread->last_frame().sender(&map);

  1343 #ifdef ASSERT

  1344     assert(caller.is_compiled_frame(), "must be");

  1345 #endif // ASSERT

  1346     if (caller.is_deoptimized_frame()) {

  1347       handler_address = SharedRuntime::deopt_blob()->unpack_with_exception();

  1348     }

  1349   }

  1350   return handler_address;

  1351 }

  1353 //------------------------------rethrow----------------------------------------

  1354 // We get here after compiled code has executed a 'RethrowNode'.  The callee

  1355 // is either throwing or rethrowing an exception.  The callee-save registers

  1356 // have been restored, synchronized objects have been unlocked and the callee

  1357 // stack frame has been removed.  The return address was passed in.

  1358 // Exception oop is passed as the 1st argument.  This routine is then called

  1359 // from the stub.  On exit, we know where to jump in the caller's code.

  1360 // After this C code exits, the stub will pop his frame and end in a jump

  1361 // (instead of a return).  We enter the caller's default handler.

  1362 //

  1363 // This must be JRT_LEAF:

  1364 //     - caller will not change its state as we cannot block on exit,

  1365 //       therefore raw_exception_handler_for_return_address is all it takes

  1366 //       to handle deoptimized blobs

  1367 //

  1368 // However, there needs to be a safepoint check in the middle!  So compiled

  1369 // safepoints are completely watertight.

  1370 //

  1371 // Thus, it cannot be a leaf since it contains the No_GC_Verifier.

  1372 //

  1373 // *THIS IS NOT RECOMMENDED PROGRAMMING STYLE*

  1374 //

  1375 address OptoRuntime::rethrow_C(oopDesc* exception, JavaThread* thread, address ret_pc) {

  1376 #ifndef PRODUCT

  1377   SharedRuntime::_rethrow_ctr++;               // count rethrows

  1378 #endif

  1379   assert (exception != NULL, "should have thrown a NULLPointerException");

  1380 #ifdef ASSERT

  1381   if (!(exception->is_a(SystemDictionary::Throwable_klass()))) {

  1382     // should throw an exception here

  1383     ShouldNotReachHere();

  1384   }

  1385 #endif

  1387   thread->set_vm_result(exception);

  1388   // Frame not compiled (handles deoptimization blob)

  1389   return SharedRuntime::raw_exception_handler_for_return_address(thread, ret_pc);

  1390 }

  1393 const TypeFunc *OptoRuntime::rethrow_Type() {

  1394   // create input type (domain)

  1395   const Type **fields = TypeTuple::fields(1);

  1396   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop

  1397   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields);

  1399   // create result type (range)

  1400   fields = TypeTuple::fields(1);

  1401   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop

  1402   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);

  1404   return TypeFunc::make(domain, range);

  1405 }

  1408 void OptoRuntime::deoptimize_caller_frame(JavaThread *thread, bool doit) {

  1409   // Deoptimize the caller before continuing, as the compiled

  1410   // exception handler table may not be valid.

  1411   if (!StressCompiledExceptionHandlers && doit) {

  1412     deoptimize_caller_frame(thread);

  1413   }

  1414 }

  1416 void OptoRuntime::deoptimize_caller_frame(JavaThread *thread) {

  1417   // Called from within the owner thread, so no need for safepoint

  1418   RegisterMap reg_map(thread);

  1419   frame stub_frame = thread->last_frame();

  1420   assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check");

  1421   frame caller_frame = stub_frame.sender(&reg_map);

  1423   // Deoptimize the caller frame.

  1424   Deoptimization::deoptimize_frame(thread, caller_frame.id());

  1425 }

  1428 bool OptoRuntime::is_deoptimized_caller_frame(JavaThread *thread) {

  1429   // Called from within the owner thread, so no need for safepoint

  1430   RegisterMap reg_map(thread);

  1431   frame stub_frame = thread->last_frame();

  1432   assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check");

  1433   frame caller_frame = stub_frame.sender(&reg_map);

  1434   return caller_frame.is_deoptimized_frame();

  1435 }

  1438 const TypeFunc *OptoRuntime::register_finalizer_Type() {

  1439   // create input type (domain)

  1440   const Type **fields = TypeTuple::fields(1);

  1441   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL;  // oop;          Receiver

  1442   // // The JavaThread* is passed to each routine as the last argument

  1443   // fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL;  // JavaThread *; Executing thread

  1444   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields);

  1446   // create result type (range)

  1447   fields = TypeTuple::fields(0);

  1449   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);

  1451   return TypeFunc::make(domain,range);

  1452 }

  1455 //-----------------------------------------------------------------------------

  1456 // Dtrace support.  entry and exit probes have the same signature

  1457 const TypeFunc *OptoRuntime::dtrace_method_entry_exit_Type() {

  1458   // create input type (domain)

  1459   const Type **fields = TypeTuple::fields(2);

  1460   fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage

  1461   fields[TypeFunc::Parms+1] = TypeMetadataPtr::BOTTOM;  // Method*;    Method we are entering

  1462   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);

  1464   // create result type (range)

  1465   fields = TypeTuple::fields(0);

  1467   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);

  1469   return TypeFunc::make(domain,range);

  1470 }

  1472 const TypeFunc *OptoRuntime::dtrace_object_alloc_Type() {

  1473   // create input type (domain)

  1474   const Type **fields = TypeTuple::fields(2);

  1475   fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage

  1476   fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL;  // oop;    newly allocated object

  1478   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);

  1480   // create result type (range)

  1481   fields = TypeTuple::fields(0);

  1483   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);

  1485   return TypeFunc::make(domain,range);

  1486 }

  1489 JRT_ENTRY_NO_ASYNC(void, OptoRuntime::register_finalizer(oopDesc* obj, JavaThread* thread))

  1490   assert(obj->is_oop(), "must be a valid oop");

  1491   assert(obj->klass()->has_finalizer(), "shouldn't be here otherwise");

  1492   InstanceKlass::register_finalizer(instanceOop(obj), CHECK);

  1493 JRT_END

  1495 //-----------------------------------------------------------------------------

  1497 NamedCounter * volatile OptoRuntime::_named_counters = NULL;

  1499 //

  1500 // dump the collected NamedCounters.

  1501 //

  1502 void OptoRuntime::print_named_counters() {

  1503   int total_lock_count = 0;

  1504   int eliminated_lock_count = 0;

  1506   NamedCounter* c = _named_counters;

  1507   while (c) {

  1508     if (c->tag() == NamedCounter::LockCounter || c->tag() == NamedCounter::EliminatedLockCounter) {

  1509       int count = c->count();

  1510       if (count > 0) {

  1511         bool eliminated = c->tag() == NamedCounter::EliminatedLockCounter;

  1512         if (Verbose) {

  1513           tty->print_cr("%d %s%s", count, c->name(), eliminated ? " (eliminated)" : "");

  1514         }

  1515         total_lock_count += count;

  1516         if (eliminated) {

  1517           eliminated_lock_count += count;

  1518         }

  1519       }

  1520     } else if (c->tag() == NamedCounter::BiasedLockingCounter) {

  1521       BiasedLockingCounters* blc = ((BiasedLockingNamedCounter*)c)->counters();

  1522       if (blc->nonzero()) {

  1523         tty->print_cr("%s", c->name());

  1524         blc->print_on(tty);

  1525       }

  1526 #if INCLUDE_RTM_OPT

  1527     } else if (c->tag() == NamedCounter::RTMLockingCounter) {

  1528       RTMLockingCounters* rlc = ((RTMLockingNamedCounter*)c)->counters();

  1529       if (rlc->nonzero()) {

  1530         tty->print_cr("%s", c->name());

  1531         rlc->print_on(tty);

  1532       }

  1533 #endif

  1534     }

  1535     c = c->next();

  1536   }

  1537   if (total_lock_count > 0) {

  1538     tty->print_cr("dynamic locks: %d", total_lock_count);

  1539     if (eliminated_lock_count) {

  1540       tty->print_cr("eliminated locks: %d (%d%%)", eliminated_lock_count,

  1541                     (int)(eliminated_lock_count * 100.0 / total_lock_count));

  1542     }

  1543   }

  1544 }

  1546 //

  1547 //  Allocate a new NamedCounter.  The JVMState is used to generate the

  1548 //  name which consists of method@line for the inlining tree.

  1549 //

  1551 NamedCounter* OptoRuntime::new_named_counter(JVMState* youngest_jvms, NamedCounter::CounterTag tag) {

  1552   int max_depth = youngest_jvms->depth();

  1554   // Visit scopes from youngest to oldest.

  1555   bool first = true;

  1556   stringStream st;

  1557   for (int depth = max_depth; depth >= 1; depth--) {

  1558     JVMState* jvms = youngest_jvms->of_depth(depth);

  1559     ciMethod* m = jvms->has_method() ? jvms->method() : NULL;

  1560     if (!first) {

  1561       st.print(" ");

  1562     } else {

  1563       first = false;

  1564     }

  1565     int bci = jvms->bci();

  1566     if (bci < 0) bci = 0;

  1567     st.print("%s.%s@%d", m->holder()->name()->as_utf8(), m->name()->as_utf8(), bci);

  1568     // To print linenumbers instead of bci use: m->line_number_from_bci(bci)

  1569   }

  1570   NamedCounter* c;

  1571   if (tag == NamedCounter::BiasedLockingCounter) {

  1572     c = new BiasedLockingNamedCounter(strdup(st.as_string()));

  1573   } else if (tag == NamedCounter::RTMLockingCounter) {

  1574     c = new RTMLockingNamedCounter(strdup(st.as_string()));

  1575   } else {

  1576     c = new NamedCounter(strdup(st.as_string()), tag);

  1577   }

  1579   // atomically add the new counter to the head of the list.  We only

  1580   // add counters so this is safe.

  1581   NamedCounter* head;

  1582   do {

  1583     c->set_next(NULL);

  1584     head = _named_counters;

  1585     c->set_next(head);

  1586   } while (Atomic::cmpxchg_ptr(c, &_named_counters, head) != head);

  1587   return c;

  1588 }

  1590 //-----------------------------------------------------------------------------

  1591 // Non-product code

  1592 #ifndef PRODUCT

  1594 int trace_exception_counter = 0;

  1595 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) {

  1596   ttyLocker ttyl;

  1597   trace_exception_counter++;

  1598   tty->print("%d [Exception (%s): ", trace_exception_counter, msg);

  1599   exception_oop->print_value();

  1600   tty->print(" in ");

  1601   CodeBlob* blob = CodeCache::find_blob(exception_pc);

  1602   if (blob->is_nmethod()) {

  1603     nmethod* nm = blob->as_nmethod_or_null();

  1604     nm->method()->print_value();

  1605   } else if (blob->is_runtime_stub()) {

  1606     tty->print("<runtime-stub>");

  1607   } else {

  1608     tty->print("<unknown>");

  1609   }

  1610   tty->print(" at " INTPTR_FORMAT,  p2i(exception_pc));

  1611   tty->print_cr("]");

  1612 }

  1614 #endif  // PRODUCT

  1617 # ifdef ENABLE_ZAP_DEAD_LOCALS

  1618 // Called from call sites in compiled code with oop maps (actually safepoints)

  1619 // Zaps dead locals in first java frame.

  1620 // Is entry because may need to lock to generate oop maps

  1621 // Currently, only used for compiler frames, but someday may be used

  1622 // for interpreter frames, too.

  1624 int OptoRuntime::ZapDeadCompiledLocals_count = 0;

  1626 // avoid pointers to member funcs with these helpers

  1627 static bool is_java_frame(  frame* f) { return f->is_java_frame();   }

  1628 static bool is_native_frame(frame* f) { return f->is_native_frame(); }

  1631 void OptoRuntime::zap_dead_java_or_native_locals(JavaThread* thread,

  1632                                                 bool (*is_this_the_right_frame_to_zap)(frame*)) {

  1633   assert(JavaThread::current() == thread, "is this needed?");

  1635   if ( !ZapDeadCompiledLocals )  return;

  1637   bool skip = false;

  1639        if ( ZapDeadCompiledLocalsFirst  ==  0  ) ; // nothing special

  1640   else if ( ZapDeadCompiledLocalsFirst  >  ZapDeadCompiledLocals_count )  skip = true;

  1641   else if ( ZapDeadCompiledLocalsFirst  == ZapDeadCompiledLocals_count )

  1642     warning("starting zapping after skipping");

  1644        if ( ZapDeadCompiledLocalsLast  ==  -1  ) ; // nothing special

  1645   else if ( ZapDeadCompiledLocalsLast  <   ZapDeadCompiledLocals_count )  skip = true;

  1646   else if ( ZapDeadCompiledLocalsLast  ==  ZapDeadCompiledLocals_count )

  1647     warning("about to zap last zap");

  1649   ++ZapDeadCompiledLocals_count; // counts skipped zaps, too

  1651   if ( skip )  return;

  1653   // find java frame and zap it

  1655   for (StackFrameStream sfs(thread);  !sfs.is_done();  sfs.next()) {

  1656     if (is_this_the_right_frame_to_zap(sfs.current()) ) {

  1657       sfs.current()->zap_dead_locals(thread, sfs.register_map());

  1658       return;

  1659     }

  1660   }

  1661   warning("no frame found to zap in zap_dead_Java_locals_C");

  1662 }

  1664 JRT_LEAF(void, OptoRuntime::zap_dead_Java_locals_C(JavaThread* thread))

  1665   zap_dead_java_or_native_locals(thread, is_java_frame);

  1666 JRT_END

  1668 // The following does not work because for one thing, the

  1669 // thread state is wrong; it expects java, but it is native.

  1670 // Also, the invariants in a native stub are different and

  1671 // I'm not sure it is safe to have a MachCalRuntimeDirectNode

  1672 // in there.

  1673 // So for now, we do not zap in native stubs.

  1675 JRT_LEAF(void, OptoRuntime::zap_dead_native_locals_C(JavaThread* thread))

  1676   zap_dead_java_or_native_locals(thread, is_native_frame);

  1677 JRT_END

  1679 # endif

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

src/share/vm/opto/runtime.cpp@44ef77ad417c

src/share/vm/opto/runtime.cpp