jdk8-mips64-public/hotspot: src/share/vm/opto/runtime.cpp@8c95980d0b66

     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 /*

    26  * This file has been modified by Loongson Technology in 2015. These

    27  * modifications are Copyright (c) 2015 Loongson Technology, and are made

    28  * available on the same license terms set forth above.

    29  */

    31 #include "precompiled.hpp"

    32 #include "classfile/systemDictionary.hpp"

    33 #include "classfile/vmSymbols.hpp"

    34 #include "code/compiledIC.hpp"

    35 #include "code/icBuffer.hpp"

    36 #include "code/nmethod.hpp"

    37 #include "code/pcDesc.hpp"

    38 #include "code/scopeDesc.hpp"

    39 #include "code/vtableStubs.hpp"

    40 #include "compiler/compileBroker.hpp"

    41 #include "compiler/compilerOracle.hpp"

    42 #include "compiler/oopMap.hpp"

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

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

    45 #include "gc_interface/collectedHeap.hpp"

    46 #include "interpreter/bytecode.hpp"

    47 #include "interpreter/interpreter.hpp"

    48 #include "interpreter/linkResolver.hpp"

    49 #include "memory/barrierSet.hpp"

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

    51 #include "memory/oopFactory.hpp"

    52 #include "oops/objArrayKlass.hpp"

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

    54 #include "opto/addnode.hpp"

    55 #include "opto/callnode.hpp"

    56 #include "opto/cfgnode.hpp"

    57 #include "opto/connode.hpp"

    58 #include "opto/graphKit.hpp"

    59 #include "opto/machnode.hpp"

    60 #include "opto/matcher.hpp"

    61 #include "opto/memnode.hpp"

    62 #include "opto/mulnode.hpp"

    63 #include "opto/runtime.hpp"

    64 #include "opto/subnode.hpp"

    65 #include "runtime/fprofiler.hpp"

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

    67 #include "runtime/interfaceSupport.hpp"

    68 #include "runtime/javaCalls.hpp"

    69 #include "runtime/sharedRuntime.hpp"

    70 #include "runtime/signature.hpp"

    71 #include "runtime/threadCritical.hpp"

    72 #include "runtime/vframe.hpp"

    73 #include "runtime/vframeArray.hpp"

    74 #include "runtime/vframe_hp.hpp"

    75 #include "utilities/copy.hpp"

    76 #include "utilities/preserveException.hpp"

    77 #if defined AD_MD_HPP

    78 # include AD_MD_HPP

    79 #elif defined TARGET_ARCH_MODEL_x86_32

    80 # include "adfiles/ad_x86_32.hpp"

    81 #elif defined TARGET_ARCH_MODEL_x86_64

    82 # include "adfiles/ad_x86_64.hpp"

    83 #elif defined TARGET_ARCH_MODEL_sparc

    84 # include "adfiles/ad_sparc.hpp"

    85 #elif defined TARGET_ARCH_MODEL_zero

    86 # include "adfiles/ad_zero.hpp"

    87 #elif defined TARGET_ARCH_MODEL_ppc_64

    88 # include "adfiles/ad_ppc_64.hpp"

    89 #elif defined TARGET_ARCH_MODEL_mips_64

    90 # include "adfiles/ad_mips_64.hpp"

    91 #endif

    94 // For debugging purposes:

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

    96 //

    97 //  Universe::release_fullgc_alot_dummy();

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

    99 //

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

   103 // GHASH block processing

   104 const TypeFunc* OptoRuntime::ghash_processBlocks_Type() {

   105     int argcnt = 4;

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

   108     int argp = TypeFunc::Parms;

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

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

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

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

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

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

   116     // result type needed

   117     fields = TypeTuple::fields(1);

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

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

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

   121 }

   123 // Compiled code entry points

   124 address OptoRuntime::_new_instance_Java                           = NULL;

   125 address OptoRuntime::_new_array_Java                              = NULL;

   126 address OptoRuntime::_new_array_nozero_Java                       = NULL;

   127 address OptoRuntime::_multianewarray2_Java                        = NULL;

   128 address OptoRuntime::_multianewarray3_Java                        = NULL;

   129 address OptoRuntime::_multianewarray4_Java                        = NULL;

   130 address OptoRuntime::_multianewarray5_Java                        = NULL;

   131 address OptoRuntime::_multianewarrayN_Java                        = NULL;

   132 address OptoRuntime::_g1_wb_pre_Java                              = NULL;

   133 address OptoRuntime::_g1_wb_post_Java                             = NULL;

   134 address OptoRuntime::_vtable_must_compile_Java                    = NULL;

   135 address OptoRuntime::_complete_monitor_locking_Java               = NULL;

   136 address OptoRuntime::_rethrow_Java                                = NULL;

   138 address OptoRuntime::_slow_arraycopy_Java                         = NULL;

   139 address OptoRuntime::_register_finalizer_Java                     = NULL;

   141 # ifdef ENABLE_ZAP_DEAD_LOCALS

   142 address OptoRuntime::_zap_dead_Java_locals_Java                   = NULL;

   143 address OptoRuntime::_zap_dead_native_locals_Java                 = NULL;

   144 # endif

   146 ExceptionBlob* OptoRuntime::_exception_blob;

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

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

   150 #ifdef ASSERT

   151 static bool check_compiled_frame(JavaThread* thread) {

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

   153   RegisterMap map(thread, false);

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

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

   156   return true;

   157 }

   158 #endif // ASSERT

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

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

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

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

   167   generate_exception_blob();

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

   170   //

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

   172   // -------------------------------------------------------------------------------------------------------------------------------

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

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

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

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

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

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

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

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

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

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

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

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

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

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

   189 # ifdef ENABLE_ZAP_DEAD_LOCALS

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

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

   192 # endif

   193   return true;

   194 }

   196 #undef gen

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

   200 address OptoRuntime::generate_stub( ciEnv* env,

   201                                     TypeFunc_generator gen, address C_function,

   202                                     const char *name, int is_fancy_jump,

   203                                     bool pass_tls,

   204                                     bool save_argument_registers,

   205                                     bool return_pc ) {

   206   ResourceMark rm;

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

   208   return  C.stub_entry_point();

   209 }

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

   212 #ifndef PRODUCT

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

   214   RuntimeStub* rs =(RuntimeStub *)cb;

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

   216   return rs->name();

   217 #else

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

   219   return "runtime stub";

   220 #endif

   221 }

   224 //=============================================================================

   225 // Opto compiler runtime routines

   226 //=============================================================================

   229 //=============================allocation======================================

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

   231 // and try allocation again.

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

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

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

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

   237   // GC may take any compensating steps.

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

   240   oop new_obj = thread->vm_result();

   241   if (new_obj == NULL)  return;

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

   244          "compiler must check this first");

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

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

   247   thread->set_vm_result(new_obj);

   248 }

   250 // object allocation

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

   252   JRT_BLOCK;

   253 #ifndef PRODUCT

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

   255 #endif

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

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

   259   int lh = klass->layout_helper();

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

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

   262     klass->check_valid_for_instantiation(false, THREAD);

   263     if (!HAS_PENDING_EXCEPTION) {

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

   265     }

   266   }

   268   if (!HAS_PENDING_EXCEPTION) {

   269     // Scavenge and allocate an instance.

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

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

   272     thread->set_vm_result(result);

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

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

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

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

   278   }

   280   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   281   JRT_BLOCK_END;

   283   if (GraphKit::use_ReduceInitialCardMarks()) {

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

   285     new_store_pre_barrier(thread);

   286   }

   287 JRT_END

   290 // array allocation

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

   292   JRT_BLOCK;

   293 #ifndef PRODUCT

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

   295 #endif

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

   298   // Scavenge and allocate an instance.

   299   oop result;

   301   if (array_type->oop_is_typeArray()) {

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

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

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

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

   306   } else {

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

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

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

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

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

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

   313   }

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

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

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

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

   319   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   320   thread->set_vm_result(result);

   321   JRT_BLOCK_END;

   323   if (GraphKit::use_ReduceInitialCardMarks()) {

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

   325     new_store_pre_barrier(thread);

   326   }

   327 JRT_END

   329 // array allocation without zeroing

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

   331   JRT_BLOCK;

   332 #ifndef PRODUCT

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

   334 #endif

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

   337   // Scavenge and allocate an instance.

   338   oop result;

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

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

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

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

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

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

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

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

   349   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   350   thread->set_vm_result(result);

   351   JRT_BLOCK_END;

   353   if (GraphKit::use_ReduceInitialCardMarks()) {

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

   355     new_store_pre_barrier(thread);

   356   }

   358   oop result = thread->vm_result();

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

   360       is_deoptimized_caller_frame(thread)) {

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

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

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

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

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

   366     const size_t aligned_hs = align_object_offset(hs);

   367     HeapWord* obj = (HeapWord*)result;

   368     if (aligned_hs > hs) {

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

   370     }

   371     // Optimized zeroing.

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

   373   }

   375 JRT_END

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

   379 // multianewarray for 2 dimensions

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

   381 #ifndef PRODUCT

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

   383 #endif

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

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

   386   jint dims[2];

   387   dims[0] = len1;

   388   dims[1] = len2;

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

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

   391   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   392   thread->set_vm_result(obj);

   393 JRT_END

   395 // multianewarray for 3 dimensions

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

   397 #ifndef PRODUCT

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

   399 #endif

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

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

   402   jint dims[3];

   403   dims[0] = len1;

   404   dims[1] = len2;

   405   dims[2] = len3;

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

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

   408   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   409   thread->set_vm_result(obj);

   410 JRT_END

   412 // multianewarray for 4 dimensions

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

   414 #ifndef PRODUCT

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

   416 #endif

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

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

   419   jint dims[4];

   420   dims[0] = len1;

   421   dims[1] = len2;

   422   dims[2] = len3;

   423   dims[3] = len4;

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

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

   426   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   427   thread->set_vm_result(obj);

   428 JRT_END

   430 // multianewarray for 5 dimensions

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

   432 #ifndef PRODUCT

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

   434 #endif

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

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

   437   jint dims[5];

   438   dims[0] = len1;

   439   dims[1] = len2;

   440   dims[2] = len3;

   441   dims[3] = len4;

   442   dims[4] = len5;

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

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

   445   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   446   thread->set_vm_result(obj);

   447 JRT_END

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

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

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

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

   454   ResourceMark rm;

   455   jint len = dims->length();

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

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

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

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

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

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

   463   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);

   464   thread->set_vm_result(obj);

   465 JRT_END

   468 const TypeFunc *OptoRuntime::new_instance_Type() {

   469   // create input type (domain)

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

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

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

   474   // create result type (range)

   475   fields = TypeTuple::fields(1);

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

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

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

   481 }

   484 const TypeFunc *OptoRuntime::athrow_Type() {

   485   // create input type (domain)

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

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

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

   490   // create result type (range)

   491   fields = TypeTuple::fields(0);

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

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

   496 }

   499 const TypeFunc *OptoRuntime::new_array_Type() {

   500   // create input type (domain)

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

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

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

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

   506   // create result type (range)

   507   fields = TypeTuple::fields(1);

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

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

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

   513 }

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

   516   // create input type (domain)

   517   const int nargs = ndim + 1;

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

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

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

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

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

   524   // create result type (range)

   525   fields = TypeTuple::fields(1);

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

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

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

   530 }

   532 const TypeFunc *OptoRuntime::multianewarray2_Type() {

   533   return multianewarray_Type(2);

   534 }

   536 const TypeFunc *OptoRuntime::multianewarray3_Type() {

   537   return multianewarray_Type(3);

   538 }

   540 const TypeFunc *OptoRuntime::multianewarray4_Type() {

   541   return multianewarray_Type(4);

   542 }

   544 const TypeFunc *OptoRuntime::multianewarray5_Type() {

   545   return multianewarray_Type(5);

   546 }

   548 const TypeFunc *OptoRuntime::multianewarrayN_Type() {

   549   // create input type (domain)

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

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

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

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

   555   // create result type (range)

   556   fields = TypeTuple::fields(1);

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

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

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

   561 }

   563 const TypeFunc *OptoRuntime::g1_wb_pre_Type() {

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

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

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

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

   569   // create result type (range)

   570   fields = TypeTuple::fields(0);

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

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

   574 }

   576 const TypeFunc *OptoRuntime::g1_wb_post_Type() {

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

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

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

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

   583   // create result type (range)

   584   fields = TypeTuple::fields(0);

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

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

   588 }

   590 const TypeFunc *OptoRuntime::uncommon_trap_Type() {

   591   // create input type (domain)

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

   593   // Symbol* name of class to be loaded

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

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

   597   // create result type (range)

   598   fields = TypeTuple::fields(0);

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

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

   602 }

   604 # ifdef ENABLE_ZAP_DEAD_LOCALS

   605 // Type used for stub generation for zap_dead_locals.

   606 // No inputs or outputs

   607 const TypeFunc *OptoRuntime::zap_dead_locals_Type() {

   608   // create input type (domain)

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

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

   612   // create result type (range)

   613   fields = TypeTuple::fields(0);

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

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

   617 }

   618 # endif

   621 //-----------------------------------------------------------------------------

   622 // Monitor Handling

   623 const TypeFunc *OptoRuntime::complete_monitor_enter_Type() {

   624   // create input type (domain)

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

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

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

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

   630   // create result type (range)

   631   fields = TypeTuple::fields(0);

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

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

   636 }

   639 //-----------------------------------------------------------------------------

   640 const TypeFunc *OptoRuntime::complete_monitor_exit_Type() {

   641   // create input type (domain)

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

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

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

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

   647   // create result type (range)

   648   fields = TypeTuple::fields(0);

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

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

   653 }

   655 const TypeFunc* OptoRuntime::flush_windows_Type() {

   656   // create input type (domain)

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

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

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

   661   // create result type

   662   fields = TypeTuple::fields(1);

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

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

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

   667 }

   669 const TypeFunc* OptoRuntime::l2f_Type() {

   670   // create input type (domain)

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

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

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

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

   676   // create result type (range)

   677   fields = TypeTuple::fields(1);

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

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

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

   682 }

   684 const TypeFunc* OptoRuntime::modf_Type() {

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

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

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

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

   690   // create result type (range)

   691   fields = TypeTuple::fields(1);

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

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

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

   697 }

   699 const TypeFunc *OptoRuntime::Math_D_D_Type() {

   700   // create input type (domain)

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

   702   // Symbol* name of class to be loaded

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

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

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

   707   // create result type (range)

   708   fields = TypeTuple::fields(2);

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

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

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

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

   714 }

   716 const TypeFunc* OptoRuntime::Math_DD_D_Type() {

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

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

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

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

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

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

   724   // create result type (range)

   725   fields = TypeTuple::fields(2);

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

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

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

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

   731 }

   733 //-------------- currentTimeMillis, currentTimeNanos, etc

   735 const TypeFunc* OptoRuntime::void_long_Type() {

   736   // create input type (domain)

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

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

   740   // create result type (range)

   741   fields = TypeTuple::fields(2);

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

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

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

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

   747 }

   749 // arraycopy stub variations:

   750 enum ArrayCopyType {

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

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

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

   754   ac_generic                    //  int(ptr, int, ptr, int, int)

   755 };

   757 static const TypeFunc* make_arraycopy_Type(ArrayCopyType act) {

   758   // create input type (domain)

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

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

   761   int argcnt = num_args;

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

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

   764   int argp = TypeFunc::Parms;

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

   766   if (num_size_args == 0) {

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

   768   }

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

   770   if (num_size_args == 0) {

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

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

   773   }

   774   while (num_size_args-- > 0) {

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

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

   777   }

   778   if (act == ac_checkcast) {

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

   780   }

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

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

   784   // create result type if needed

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

   786   fields = TypeTuple::fields(1);

   787   if (retcnt == 0)

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

   789   else

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

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

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

   793 }

   795 const TypeFunc* OptoRuntime::fast_arraycopy_Type() {

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

   797   return make_arraycopy_Type(ac_fast);

   798 }

   800 const TypeFunc* OptoRuntime::checkcast_arraycopy_Type() {

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

   802   return make_arraycopy_Type(ac_checkcast);

   803 }

   805 const TypeFunc* OptoRuntime::slow_arraycopy_Type() {

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

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

   808   return make_arraycopy_Type(ac_slow);

   809 }

   811 const TypeFunc* OptoRuntime::generic_arraycopy_Type() {

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

   813   return make_arraycopy_Type(ac_generic);

   814 }

   817 const TypeFunc* OptoRuntime::array_fill_Type() {

   818   const Type** fields;

   819   int argp = TypeFunc::Parms;

   820   if (CCallingConventionRequiresIntsAsLongs) {

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

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

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

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

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

   826   } else {

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

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

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

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

   831   }

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

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

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

   836   // create result type

   837   fields = TypeTuple::fields(1);

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

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

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

   842 }

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

   845 const TypeFunc* OptoRuntime::aescrypt_block_Type() {

   846   // create input type (domain)

   847   int num_args      = 3;

   848   if (Matcher::pass_original_key_for_aes()) {

   849     num_args = 4;

   850   }

   851   int argcnt = num_args;

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

   853   int argp = TypeFunc::Parms;

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

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

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

   857   if (Matcher::pass_original_key_for_aes()) {

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

   859   }

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

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

   863   // no result type needed

   864   fields = TypeTuple::fields(1);

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

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

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

   868 }

   870 /**

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

   872  */

   873 const TypeFunc* OptoRuntime::updateBytesCRC32_Type() {

   874   // create input type (domain)

   875   int num_args = 3;

   876   int argcnt = num_args;

   877   if (CCallingConventionRequiresIntsAsLongs) {

   878     argcnt += 2;

   879   }

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

   881   int argp = TypeFunc::Parms;

   882   if (CCallingConventionRequiresIntsAsLongs) {

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

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

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

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

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

   888   } else {

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

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

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

   892   }

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

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

   896   // result type needed

   897   fields = TypeTuple::fields(1);

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

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

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

   901 }

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

   904 const TypeFunc* OptoRuntime::cipherBlockChaining_aescrypt_Type() {

   905   // create input type (domain)

   906   int num_args      = 5;

   907   if (Matcher::pass_original_key_for_aes()) {

   908     num_args = 6;

   909   }

   910   int argcnt = num_args;

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

   912   int argp = TypeFunc::Parms;

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

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

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

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

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

   918   if (Matcher::pass_original_key_for_aes()) {

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

   920   }

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

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

   924   // returning cipher len (int)

   925   fields = TypeTuple::fields(1);

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

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

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

   929 }

   931 /*

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

   933  */

   934 const TypeFunc* OptoRuntime::sha_implCompress_Type() {

   935   // create input type (domain)

   936   int num_args = 2;

   937   int argcnt = num_args;

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

   939   int argp = TypeFunc::Parms;

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

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

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

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

   945   // no result type needed

   946   fields = TypeTuple::fields(1);

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

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

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

   950 }

   952 /*

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

   954  */

   955 const TypeFunc* OptoRuntime::digestBase_implCompressMB_Type() {

   956   // create input type (domain)

   957   int num_args = 4;

   958   int argcnt = num_args;

   959   if(CCallingConventionRequiresIntsAsLongs) {

   960     argcnt += 2;

   961   }

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

   963   int argp = TypeFunc::Parms;

   964   if(CCallingConventionRequiresIntsAsLongs) {

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

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

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

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

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

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

   971   } else {

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

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

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

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

   976   }

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

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

   980   // returning ofs (int)

   981   fields = TypeTuple::fields(1);

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

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

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

   985 }

   987 const TypeFunc* OptoRuntime::multiplyToLen_Type() {

   988   // create input type (domain)

   989   int num_args      = 6;

   990   int argcnt = num_args;

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

   992   int argp = TypeFunc::Parms;

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

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

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

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

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

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

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

  1000   const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);

  1002   // no result type needed

  1003   fields = TypeTuple::fields(1);

  1004   fields[TypeFunc::Parms+0] = NULL;

  1005   const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields);

  1006   return TypeFunc::make(domain, range);

  1007 }

  1009 const TypeFunc* OptoRuntime::squareToLen_Type() {

  1010   // create input type (domain)

  1011   int num_args      = 4;

  1012   int argcnt = num_args;

  1013   const Type** fields = TypeTuple::fields(argcnt);

  1014   int argp = TypeFunc::Parms;

  1015   fields[argp++] = TypePtr::NOTNULL;    // x

  1016   fields[argp++] = TypeInt::INT;        // len

  1017   fields[argp++] = TypePtr::NOTNULL;    // z

  1018   fields[argp++] = TypeInt::INT;        // zlen

  1019   assert(argp == TypeFunc::Parms+argcnt, "correct decoding");

  1020   const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);

  1022   // no result type needed

  1023   fields = TypeTuple::fields(1);

  1024   fields[TypeFunc::Parms+0] = NULL;

  1025   const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields);

  1026   return TypeFunc::make(domain, range);

  1027 }

  1029 // for mulAdd calls, 2 pointers and 3 ints, returning int

  1030 const TypeFunc* OptoRuntime::mulAdd_Type() {

  1031   // create input type (domain)

  1032   int num_args      = 5;

  1033   int argcnt = num_args;

  1034   const Type** fields = TypeTuple::fields(argcnt);

  1035   int argp = TypeFunc::Parms;

  1036   fields[argp++] = TypePtr::NOTNULL;    // out

  1037   fields[argp++] = TypePtr::NOTNULL;    // in

  1038   fields[argp++] = TypeInt::INT;        // offset

  1039   fields[argp++] = TypeInt::INT;        // len

  1040   fields[argp++] = TypeInt::INT;        // k

  1041   assert(argp == TypeFunc::Parms+argcnt, "correct decoding");

  1042   const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);

  1044   // returning carry (int)

  1045   fields = TypeTuple::fields(1);

  1046   fields[TypeFunc::Parms+0] = TypeInt::INT;

  1047   const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+1, fields);

  1048   return TypeFunc::make(domain, range);

  1049 }

  1051 const TypeFunc* OptoRuntime::montgomeryMultiply_Type() {

  1052   // create input type (domain)

  1053   int num_args      = 7;

  1054   int argcnt = num_args;

  1055   if (CCallingConventionRequiresIntsAsLongs) {

  1056     argcnt++;                           // additional placeholder

  1057   }

  1058   const Type** fields = TypeTuple::fields(argcnt);

  1059   int argp = TypeFunc::Parms;

  1060   fields[argp++] = TypePtr::NOTNULL;    // a

  1061   fields[argp++] = TypePtr::NOTNULL;    // b

  1062   fields[argp++] = TypePtr::NOTNULL;    // n

  1063   if (CCallingConventionRequiresIntsAsLongs) {

  1064     fields[argp++] = TypeLong::LONG;    // len

  1065     fields[argp++] = TypeLong::HALF;    // placeholder

  1066   } else {

  1067     fields[argp++] = TypeInt::INT;      // len

  1068   }

  1069   fields[argp++] = TypeLong::LONG;      // inv

  1070   fields[argp++] = Type::HALF;

  1071   fields[argp++] = TypePtr::NOTNULL;    // result

  1072   assert(argp == TypeFunc::Parms+argcnt, "correct decoding");

  1073   const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);

  1075   // result type needed

  1076   fields = TypeTuple::fields(1);

  1077   fields[TypeFunc::Parms+0] = TypePtr::NOTNULL;

  1079   const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields);

  1080   return TypeFunc::make(domain, range);

  1081 }

  1083 const TypeFunc* OptoRuntime::montgomerySquare_Type() {

  1084   // create input type (domain)

  1085   int num_args      = 6;

  1086   int argcnt = num_args;

  1087   if (CCallingConventionRequiresIntsAsLongs) {

  1088     argcnt++;                           // additional placeholder

  1089   }

  1090   const Type** fields = TypeTuple::fields(argcnt);

  1091   int argp = TypeFunc::Parms;

  1092   fields[argp++] = TypePtr::NOTNULL;    // a

  1093   fields[argp++] = TypePtr::NOTNULL;    // n

  1094   if (CCallingConventionRequiresIntsAsLongs) {

  1095     fields[argp++] = TypeLong::LONG;    // len

  1096     fields[argp++] = TypeLong::HALF;    // placeholder

  1097   } else {

  1098     fields[argp++] = TypeInt::INT;      // len

  1099   }

  1100   fields[argp++] = TypeLong::LONG;      // inv

  1101   fields[argp++] = Type::HALF;

  1102   fields[argp++] = TypePtr::NOTNULL;    // result

  1103   assert(argp == TypeFunc::Parms+argcnt, "correct decoding");

  1104   const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);

  1106   // result type needed

  1107   fields = TypeTuple::fields(1);

  1108   fields[TypeFunc::Parms+0] = TypePtr::NOTNULL;

  1110   const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields);

  1111   return TypeFunc::make(domain, range);

  1112 }

  1115 //------------- Interpreter state access for on stack replacement

  1116 const TypeFunc* OptoRuntime::osr_end_Type() {

  1117   // create input type (domain)

  1118   const Type **fields = TypeTuple::fields(1);

  1119   fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // OSR temp buf

  1120   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);

  1122   // create result type

  1123   fields = TypeTuple::fields(1);

  1124   // fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // locked oop

  1125   fields[TypeFunc::Parms+0] = NULL; // void

  1126   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);

  1127   return TypeFunc::make(domain, range);

  1128 }

  1130 //-------------- methodData update helpers

  1132 const TypeFunc* OptoRuntime::profile_receiver_type_Type() {

  1133   // create input type (domain)

  1134   const Type **fields = TypeTuple::fields(2);

  1135   fields[TypeFunc::Parms+0] = TypeAryPtr::NOTNULL;    // methodData pointer

  1136   fields[TypeFunc::Parms+1] = TypeInstPtr::BOTTOM;    // receiver oop

  1137   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);

  1139   // create result type

  1140   fields = TypeTuple::fields(1);

  1141   fields[TypeFunc::Parms+0] = NULL; // void

  1142   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);

  1143   return TypeFunc::make(domain,range);

  1144 }

  1146 JRT_LEAF(void, OptoRuntime::profile_receiver_type_C(DataLayout* data, oopDesc* receiver))

  1147   if (receiver == NULL) return;

  1148   Klass* receiver_klass = receiver->klass();

  1150   intptr_t* mdp = ((intptr_t*)(data)) + DataLayout::header_size_in_cells();

  1151   int empty_row = -1;           // free row, if any is encountered

  1153   // ReceiverTypeData* vc = new ReceiverTypeData(mdp);

  1154   for (uint row = 0; row < ReceiverTypeData::row_limit(); row++) {

  1155     // if (vc->receiver(row) == receiver_klass)

  1156     int receiver_off = ReceiverTypeData::receiver_cell_index(row);

  1157     intptr_t row_recv = *(mdp + receiver_off);

  1158     if (row_recv == (intptr_t) receiver_klass) {

  1159       // vc->set_receiver_count(row, vc->receiver_count(row) + DataLayout::counter_increment);

  1160       int count_off = ReceiverTypeData::receiver_count_cell_index(row);

  1161       *(mdp + count_off) += DataLayout::counter_increment;

  1162       return;

  1163     } else if (row_recv == 0) {

  1164       // else if (vc->receiver(row) == NULL)

  1165       empty_row = (int) row;

  1166     }

  1167   }

  1169   if (empty_row != -1) {

  1170     int receiver_off = ReceiverTypeData::receiver_cell_index(empty_row);

  1171     // vc->set_receiver(empty_row, receiver_klass);

  1172     *(mdp + receiver_off) = (intptr_t) receiver_klass;

  1173     // vc->set_receiver_count(empty_row, DataLayout::counter_increment);

  1174     int count_off = ReceiverTypeData::receiver_count_cell_index(empty_row);

  1175     *(mdp + count_off) = DataLayout::counter_increment;

  1176   } else {

  1177     // Receiver did not match any saved receiver and there is no empty row for it.

  1178     // Increment total counter to indicate polymorphic case.

  1179     intptr_t* count_p = (intptr_t*)(((byte*)(data)) + in_bytes(CounterData::count_offset()));

  1180     *count_p += DataLayout::counter_increment;

  1181   }

  1182 JRT_END

  1184 //-------------------------------------------------------------------------------------

  1185 // register policy

  1187 bool OptoRuntime::is_callee_saved_register(MachRegisterNumbers reg) {

  1188   assert(reg >= 0 && reg < _last_Mach_Reg, "must be a machine register");

  1189   switch (register_save_policy[reg]) {

  1190     case 'C': return false; //SOC

  1191     case 'E': return true ; //SOE

  1192     case 'N': return false; //NS

  1193     case 'A': return false; //AS

  1194   }

  1195   ShouldNotReachHere();

  1196   return false;

  1197 }

  1199 //-----------------------------------------------------------------------

  1200 // Exceptions

  1201 //

  1203 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) PRODUCT_RETURN;

  1205 // The method is an entry that is always called by a C++ method not

  1206 // directly from compiled code. Compiled code will call the C++ method following.

  1207 // We can't allow async exception to be installed during  exception processing.

  1208 JRT_ENTRY_NO_ASYNC(address, OptoRuntime::handle_exception_C_helper(JavaThread* thread, nmethod* &nm))

  1210   // Do not confuse exception_oop with pending_exception. The exception_oop

  1211   // is only used to pass arguments into the method. Not for general

  1212   // exception handling.  DO NOT CHANGE IT to use pending_exception, since

  1213   // the runtime stubs checks this on exit.

  1214   assert(thread->exception_oop() != NULL, "exception oop is found");

  1215   address handler_address = NULL;

  1217   Handle exception(thread, thread->exception_oop());

  1218   address pc = thread->exception_pc();

  1220   // Clear out the exception oop and pc since looking up an

  1221   // exception handler can cause class loading, which might throw an

  1222   // exception and those fields are expected to be clear during

  1223   // normal bytecode execution.

  1224   thread->clear_exception_oop_and_pc();

  1226   if (TraceExceptions) {

  1227     trace_exception(exception(), pc, "");

  1228   }

  1230   // for AbortVMOnException flag

  1231   NOT_PRODUCT(Exceptions::debug_check_abort(exception));

  1233 #ifdef ASSERT

  1234   if (!(exception->is_a(SystemDictionary::Throwable_klass()))) {

  1235     // should throw an exception here

  1236     ShouldNotReachHere();

  1237   }

  1238 #endif

  1240   // new exception handling: this method is entered only from adapters

  1241   // exceptions from compiled java methods are handled in compiled code

  1242   // using rethrow node

  1244   nm = CodeCache::find_nmethod(pc);

  1245   assert(nm != NULL, "No NMethod found");

  1246   if (nm->is_native_method()) {

  1247     fatal("Native method should not have path to exception handling");

  1248   } else {

  1249     // we are switching to old paradigm: search for exception handler in caller_frame

  1250     // instead in exception handler of caller_frame.sender()

  1252     if (JvmtiExport::can_post_on_exceptions()) {

  1253       // "Full-speed catching" is not necessary here,

  1254       // since we're notifying the VM on every catch.

  1255       // Force deoptimization and the rest of the lookup

  1256       // will be fine.

  1257       deoptimize_caller_frame(thread);

  1258     }

  1260     // Check the stack guard pages.  If enabled, look for handler in this frame;

  1261     // otherwise, forcibly unwind the frame.

  1262     //

  1263     // 4826555: use default current sp for reguard_stack instead of &nm: it's more accurate.

  1264     bool force_unwind = !thread->reguard_stack();

  1265     bool deopting = false;

  1266     if (nm->is_deopt_pc(pc)) {

  1267       deopting = true;

  1268       RegisterMap map(thread, false);

  1269       frame deoptee = thread->last_frame().sender(&map);

  1270       assert(deoptee.is_deoptimized_frame(), "must be deopted");

  1271       // Adjust the pc back to the original throwing pc

  1272       pc = deoptee.pc();

  1273     }

  1275     // If we are forcing an unwind because of stack overflow then deopt is

  1276     // irrelevant since we are throwing the frame away anyway.

  1278     if (deopting && !force_unwind) {

  1279       handler_address = SharedRuntime::deopt_blob()->unpack_with_exception();

  1280     } else {

  1282       handler_address =

  1283         force_unwind ? NULL : nm->handler_for_exception_and_pc(exception, pc);

  1285       if (handler_address == NULL) {

  1286         bool recursive_exception = false;

  1287         handler_address = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true, recursive_exception);

  1288         assert (handler_address != NULL, "must have compiled handler");

  1289         // Update the exception cache only when the unwind was not forced

  1290         // and there didn't happen another exception during the computation of the

  1291         // compiled exception handler. Checking for exception oop equality is not

  1292         // sufficient because some exceptions are pre-allocated and reused.

  1293         if (!force_unwind && !recursive_exception) {

  1294           nm->add_handler_for_exception_and_pc(exception,pc,handler_address);

  1295         }

  1296       } else {

  1297 #ifdef ASSERT

  1298         bool recursive_exception = false;

  1299         address computed_address = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true, recursive_exception);

  1300         assert(recursive_exception || (handler_address == computed_address), err_msg("Handler address inconsistency: " PTR_FORMAT " != " PTR_FORMAT,

  1301                  p2i(handler_address), p2i(computed_address)));

  1302 #endif

  1303       }

  1304     }

  1306     thread->set_exception_pc(pc);

  1307     thread->set_exception_handler_pc(handler_address);

  1309     // Check if the exception PC is a MethodHandle call site.

  1310     thread->set_is_method_handle_return(nm->is_method_handle_return(pc));

  1311   }

  1313   // Restore correct return pc.  Was saved above.

  1314   thread->set_exception_oop(exception());

  1315   return handler_address;

  1317 JRT_END

  1319 // We are entering here from exception_blob

  1320 // If there is a compiled exception handler in this method, we will continue there;

  1321 // otherwise we will unwind the stack and continue at the caller of top frame method

  1322 // Note we enter without the usual JRT wrapper. We will call a helper routine that

  1323 // will do the normal VM entry. We do it this way so that we can see if the nmethod

  1324 // we looked up the handler for has been deoptimized in the meantime. If it has been

  1325 // we must not use the handler and instead return the deopt blob.

  1326 address OptoRuntime::handle_exception_C(JavaThread* thread) {

  1327 //

  1328 // We are in Java not VM and in debug mode we have a NoHandleMark

  1329 //

  1330 #ifndef PRODUCT

  1331   SharedRuntime::_find_handler_ctr++;          // find exception handler

  1332 #endif

  1333   debug_only(NoHandleMark __hm;)

  1334   nmethod* nm = NULL;

  1335   address handler_address = NULL;

  1336   {

  1337     // Enter the VM

  1339     ResetNoHandleMark rnhm;

  1340     handler_address = handle_exception_C_helper(thread, nm);

  1341   }

  1343   // Back in java: Use no oops, DON'T safepoint

  1345   // Now check to see if the handler we are returning is in a now

  1346   // deoptimized frame

  1348   if (nm != NULL) {

  1349     RegisterMap map(thread, false);

  1350     frame caller = thread->last_frame().sender(&map);

  1351 #ifdef ASSERT

  1352     assert(caller.is_compiled_frame(), "must be");

  1353 #endif // ASSERT

  1354     if (caller.is_deoptimized_frame()) {

  1355       handler_address = SharedRuntime::deopt_blob()->unpack_with_exception();

  1356     }

  1357   }

  1358   return handler_address;

  1359 }

  1361 //------------------------------rethrow----------------------------------------

  1362 // We get here after compiled code has executed a 'RethrowNode'.  The callee

  1363 // is either throwing or rethrowing an exception.  The callee-save registers

  1364 // have been restored, synchronized objects have been unlocked and the callee

  1365 // stack frame has been removed.  The return address was passed in.

  1366 // Exception oop is passed as the 1st argument.  This routine is then called

  1367 // from the stub.  On exit, we know where to jump in the caller's code.

  1368 // After this C code exits, the stub will pop his frame and end in a jump

  1369 // (instead of a return).  We enter the caller's default handler.

  1370 //

  1371 // This must be JRT_LEAF:

  1372 //     - caller will not change its state as we cannot block on exit,

  1373 //       therefore raw_exception_handler_for_return_address is all it takes

  1374 //       to handle deoptimized blobs

  1375 //

  1376 // However, there needs to be a safepoint check in the middle!  So compiled

  1377 // safepoints are completely watertight.

  1378 //

  1379 // Thus, it cannot be a leaf since it contains the No_GC_Verifier.

  1380 //

  1381 // *THIS IS NOT RECOMMENDED PROGRAMMING STYLE*

  1382 //

  1383 address OptoRuntime::rethrow_C(oopDesc* exception, JavaThread* thread, address ret_pc) {

  1384 #ifndef PRODUCT

  1385   SharedRuntime::_rethrow_ctr++;               // count rethrows

  1386 #endif

  1387   assert (exception != NULL, "should have thrown a NULLPointerException");

  1388 #ifdef ASSERT

  1389   if (!(exception->is_a(SystemDictionary::Throwable_klass()))) {

  1390     // should throw an exception here

  1391     ShouldNotReachHere();

  1392   }

  1393 #endif

  1395   thread->set_vm_result(exception);

  1396   // Frame not compiled (handles deoptimization blob)

  1397   return SharedRuntime::raw_exception_handler_for_return_address(thread, ret_pc);

  1398 }

  1401 const TypeFunc *OptoRuntime::rethrow_Type() {

  1402   // create input type (domain)

  1403   const Type **fields = TypeTuple::fields(1);

  1404   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop

  1405   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields);

  1407   // create result type (range)

  1408   fields = TypeTuple::fields(1);

  1409   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop

  1410   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);

  1412   return TypeFunc::make(domain, range);

  1413 }

  1416 void OptoRuntime::deoptimize_caller_frame(JavaThread *thread, bool doit) {

  1417   // Deoptimize the caller before continuing, as the compiled

  1418   // exception handler table may not be valid.

  1419   if (!StressCompiledExceptionHandlers && doit) {

  1420     deoptimize_caller_frame(thread);

  1421   }

  1422 }

  1424 void OptoRuntime::deoptimize_caller_frame(JavaThread *thread) {

  1425   // Called from within the owner thread, so no need for safepoint

  1426   RegisterMap reg_map(thread);

  1427   frame stub_frame = thread->last_frame();

  1428   assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check");

  1429   frame caller_frame = stub_frame.sender(&reg_map);

  1431   // Deoptimize the caller frame.

  1432   Deoptimization::deoptimize_frame(thread, caller_frame.id());

  1433 }

  1436 bool OptoRuntime::is_deoptimized_caller_frame(JavaThread *thread) {

  1437   // Called from within the owner thread, so no need for safepoint

  1438   RegisterMap reg_map(thread);

  1439   frame stub_frame = thread->last_frame();

  1440   assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check");

  1441   frame caller_frame = stub_frame.sender(&reg_map);

  1442   return caller_frame.is_deoptimized_frame();

  1443 }

  1446 const TypeFunc *OptoRuntime::register_finalizer_Type() {

  1447   // create input type (domain)

  1448   const Type **fields = TypeTuple::fields(1);

  1449   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL;  // oop;          Receiver

  1450   // // The JavaThread* is passed to each routine as the last argument

  1451   // fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL;  // JavaThread *; Executing thread

  1452   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields);

  1454   // create result type (range)

  1455   fields = TypeTuple::fields(0);

  1457   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);

  1459   return TypeFunc::make(domain,range);

  1460 }

  1463 //-----------------------------------------------------------------------------

  1464 // Dtrace support.  entry and exit probes have the same signature

  1465 const TypeFunc *OptoRuntime::dtrace_method_entry_exit_Type() {

  1466   // create input type (domain)

  1467   const Type **fields = TypeTuple::fields(2);

  1468   fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage

  1469   fields[TypeFunc::Parms+1] = TypeMetadataPtr::BOTTOM;  // Method*;    Method we are entering

  1470   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);

  1472   // create result type (range)

  1473   fields = TypeTuple::fields(0);

  1475   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);

  1477   return TypeFunc::make(domain,range);

  1478 }

  1480 const TypeFunc *OptoRuntime::dtrace_object_alloc_Type() {

  1481   // create input type (domain)

  1482   const Type **fields = TypeTuple::fields(2);

  1483   fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage

  1484   fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL;  // oop;    newly allocated object

  1486   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);

  1488   // create result type (range)

  1489   fields = TypeTuple::fields(0);

  1491   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);

  1493   return TypeFunc::make(domain,range);

  1494 }

  1497 JRT_ENTRY_NO_ASYNC(void, OptoRuntime::register_finalizer(oopDesc* obj, JavaThread* thread))

  1498   assert(obj->is_oop(), "must be a valid oop");

  1499   assert(obj->klass()->has_finalizer(), "shouldn't be here otherwise");

  1500   InstanceKlass::register_finalizer(instanceOop(obj), CHECK);

  1501 JRT_END

  1503 //-----------------------------------------------------------------------------

  1505 NamedCounter * volatile OptoRuntime::_named_counters = NULL;

  1507 //

  1508 // dump the collected NamedCounters.

  1509 //

  1510 void OptoRuntime::print_named_counters() {

  1511   int total_lock_count = 0;

  1512   int eliminated_lock_count = 0;

  1514   NamedCounter* c = _named_counters;

  1515   while (c) {

  1516     if (c->tag() == NamedCounter::LockCounter || c->tag() == NamedCounter::EliminatedLockCounter) {

  1517       int count = c->count();

  1518       if (count > 0) {

  1519         bool eliminated = c->tag() == NamedCounter::EliminatedLockCounter;

  1520         if (Verbose) {

  1521           tty->print_cr("%d %s%s", count, c->name(), eliminated ? " (eliminated)" : "");

  1522         }

  1523         total_lock_count += count;

  1524         if (eliminated) {

  1525           eliminated_lock_count += count;

  1526         }

  1527       }

  1528     } else if (c->tag() == NamedCounter::BiasedLockingCounter) {

  1529       BiasedLockingCounters* blc = ((BiasedLockingNamedCounter*)c)->counters();

  1530       if (blc->nonzero()) {

  1531         tty->print_cr("%s", c->name());

  1532         blc->print_on(tty);

  1533       }

  1534 #if INCLUDE_RTM_OPT

  1535     } else if (c->tag() == NamedCounter::RTMLockingCounter) {

  1536       RTMLockingCounters* rlc = ((RTMLockingNamedCounter*)c)->counters();

  1537       if (rlc->nonzero()) {

  1538         tty->print_cr("%s", c->name());

  1539         rlc->print_on(tty);

  1540       }

  1541 #endif

  1542     }

  1543     c = c->next();

  1544   }

  1545   if (total_lock_count > 0) {

  1546     tty->print_cr("dynamic locks: %d", total_lock_count);

  1547     if (eliminated_lock_count) {

  1548       tty->print_cr("eliminated locks: %d (%d%%)", eliminated_lock_count,

  1549                     (int)(eliminated_lock_count * 100.0 / total_lock_count));

  1550     }

  1551   }

  1552 }

  1554 //

  1555 //  Allocate a new NamedCounter.  The JVMState is used to generate the

  1556 //  name which consists of method@line for the inlining tree.

  1557 //

  1559 NamedCounter* OptoRuntime::new_named_counter(JVMState* youngest_jvms, NamedCounter::CounterTag tag) {

  1560   int max_depth = youngest_jvms->depth();

  1562   // Visit scopes from youngest to oldest.

  1563   bool first = true;

  1564   stringStream st;

  1565   for (int depth = max_depth; depth >= 1; depth--) {

  1566     JVMState* jvms = youngest_jvms->of_depth(depth);

  1567     ciMethod* m = jvms->has_method() ? jvms->method() : NULL;

  1568     if (!first) {

  1569       st.print(" ");

  1570     } else {

  1571       first = false;

  1572     }

  1573     int bci = jvms->bci();

  1574     if (bci < 0) bci = 0;

  1575     st.print("%s.%s@%d", m->holder()->name()->as_utf8(), m->name()->as_utf8(), bci);

  1576     // To print linenumbers instead of bci use: m->line_number_from_bci(bci)

  1577   }

  1578   NamedCounter* c;

  1579   if (tag == NamedCounter::BiasedLockingCounter) {

  1580     c = new BiasedLockingNamedCounter(strdup(st.as_string()));

  1581   } else if (tag == NamedCounter::RTMLockingCounter) {

  1582     c = new RTMLockingNamedCounter(strdup(st.as_string()));

  1583   } else {

  1584     c = new NamedCounter(strdup(st.as_string()), tag);

  1585   }

  1587   // atomically add the new counter to the head of the list.  We only

  1588   // add counters so this is safe.

  1589   NamedCounter* head;

  1590   do {

  1591     c->set_next(NULL);

  1592     head = _named_counters;

  1593     c->set_next(head);

  1594   } while (Atomic::cmpxchg_ptr(c, &_named_counters, head) != head);

  1595   return c;

  1596 }

  1598 //-----------------------------------------------------------------------------

  1599 // Non-product code

  1600 #ifndef PRODUCT

  1602 int trace_exception_counter = 0;

  1603 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) {

  1604   ttyLocker ttyl;

  1605   trace_exception_counter++;

  1606   tty->print("%d [Exception (%s): ", trace_exception_counter, msg);

  1607   exception_oop->print_value();

  1608   tty->print(" in ");

  1609   CodeBlob* blob = CodeCache::find_blob(exception_pc);

  1610   if (blob->is_nmethod()) {

  1611     nmethod* nm = blob->as_nmethod_or_null();

  1612     nm->method()->print_value();

  1613   } else if (blob->is_runtime_stub()) {

  1614     tty->print("<runtime-stub>");

  1615   } else {

  1616     tty->print("<unknown>");

  1617   }

  1618   tty->print(" at " INTPTR_FORMAT,  p2i(exception_pc));

  1619   tty->print_cr("]");

  1620 }

  1622 #endif  // PRODUCT

  1625 # ifdef ENABLE_ZAP_DEAD_LOCALS

  1626 // Called from call sites in compiled code with oop maps (actually safepoints)

  1627 // Zaps dead locals in first java frame.

  1628 // Is entry because may need to lock to generate oop maps

  1629 // Currently, only used for compiler frames, but someday may be used

  1630 // for interpreter frames, too.

  1632 int OptoRuntime::ZapDeadCompiledLocals_count = 0;

  1634 // avoid pointers to member funcs with these helpers

  1635 static bool is_java_frame(  frame* f) { return f->is_java_frame();   }

  1636 static bool is_native_frame(frame* f) { return f->is_native_frame(); }

  1639 void OptoRuntime::zap_dead_java_or_native_locals(JavaThread* thread,

  1640                                                 bool (*is_this_the_right_frame_to_zap)(frame*)) {

  1641   assert(JavaThread::current() == thread, "is this needed?");

  1643   if ( !ZapDeadCompiledLocals )  return;

  1645   bool skip = false;

  1647        if ( ZapDeadCompiledLocalsFirst  ==  0  ) ; // nothing special

  1648   else if ( ZapDeadCompiledLocalsFirst  >  ZapDeadCompiledLocals_count )  skip = true;

  1649   else if ( ZapDeadCompiledLocalsFirst  == ZapDeadCompiledLocals_count )

  1650     warning("starting zapping after skipping");

  1652        if ( ZapDeadCompiledLocalsLast  ==  -1  ) ; // nothing special

  1653   else if ( ZapDeadCompiledLocalsLast  <   ZapDeadCompiledLocals_count )  skip = true;

  1654   else if ( ZapDeadCompiledLocalsLast  ==  ZapDeadCompiledLocals_count )

  1655     warning("about to zap last zap");

  1657   ++ZapDeadCompiledLocals_count; // counts skipped zaps, too

  1659   if ( skip )  return;

  1661   // find java frame and zap it

  1663   for (StackFrameStream sfs(thread);  !sfs.is_done();  sfs.next()) {

  1664     if (is_this_the_right_frame_to_zap(sfs.current()) ) {

  1665       sfs.current()->zap_dead_locals(thread, sfs.register_map());

  1666       return;

  1667     }

  1668   }

  1669   warning("no frame found to zap in zap_dead_Java_locals_C");

  1670 }

  1672 JRT_LEAF(void, OptoRuntime::zap_dead_Java_locals_C(JavaThread* thread))

  1673   zap_dead_java_or_native_locals(thread, is_java_frame);

  1674 JRT_END

  1676 // The following does not work because for one thing, the

  1677 // thread state is wrong; it expects java, but it is native.

  1678 // Also, the invariants in a native stub are different and

  1679 // I'm not sure it is safe to have a MachCalRuntimeDirectNode

  1680 // in there.

  1681 // So for now, we do not zap in native stubs.

  1683 JRT_LEAF(void, OptoRuntime::zap_dead_native_locals_C(JavaThread* thread))

  1684   zap_dead_java_or_native_locals(thread, is_native_frame);

  1685 JRT_END

  1687 # endif

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

src/share/vm/opto/runtime.cpp@8c95980d0b66

src/share/vm/opto/runtime.cpp