duke@435: /*
rbackman@3709:  * Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
duke@435:  *
duke@435:  */
duke@435: 
stefank@2314: #include "precompiled.hpp"
stefank@2314: #include "classfile/systemDictionary.hpp"
stefank@2314: #include "classfile/vmSymbols.hpp"
stefank@2314: #include "code/compiledIC.hpp"
stefank@2314: #include "code/icBuffer.hpp"
stefank@2314: #include "code/nmethod.hpp"
stefank@2314: #include "code/pcDesc.hpp"
stefank@2314: #include "code/scopeDesc.hpp"
stefank@2314: #include "code/vtableStubs.hpp"
stefank@2314: #include "compiler/compileBroker.hpp"
stefank@2314: #include "compiler/compilerOracle.hpp"
stefank@2314: #include "compiler/oopMap.hpp"
stefank@2314: #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp"
stefank@2314: #include "gc_implementation/g1/heapRegion.hpp"
stefank@2314: #include "gc_interface/collectedHeap.hpp"
stefank@2314: #include "interpreter/bytecode.hpp"
stefank@2314: #include "interpreter/interpreter.hpp"
stefank@2314: #include "interpreter/linkResolver.hpp"
stefank@2314: #include "memory/barrierSet.hpp"
stefank@2314: #include "memory/gcLocker.inline.hpp"
stefank@2314: #include "memory/oopFactory.hpp"
stefank@2314: #include "oops/objArrayKlass.hpp"
stefank@2314: #include "oops/oop.inline.hpp"
stefank@2314: #include "opto/addnode.hpp"
stefank@2314: #include "opto/callnode.hpp"
stefank@2314: #include "opto/cfgnode.hpp"
stefank@2314: #include "opto/connode.hpp"
stefank@2314: #include "opto/graphKit.hpp"
stefank@2314: #include "opto/machnode.hpp"
stefank@2314: #include "opto/matcher.hpp"
stefank@2314: #include "opto/memnode.hpp"
stefank@2314: #include "opto/mulnode.hpp"
stefank@2314: #include "opto/runtime.hpp"
stefank@2314: #include "opto/subnode.hpp"
stefank@2314: #include "runtime/fprofiler.hpp"
stefank@2314: #include "runtime/handles.inline.hpp"
stefank@2314: #include "runtime/interfaceSupport.hpp"
stefank@2314: #include "runtime/javaCalls.hpp"
stefank@2314: #include "runtime/sharedRuntime.hpp"
stefank@2314: #include "runtime/signature.hpp"
stefank@2314: #include "runtime/threadCritical.hpp"
stefank@2314: #include "runtime/vframe.hpp"
stefank@2314: #include "runtime/vframeArray.hpp"
stefank@2314: #include "runtime/vframe_hp.hpp"
stefank@2314: #include "utilities/copy.hpp"
stefank@2314: #include "utilities/preserveException.hpp"
stefank@2314: #ifdef TARGET_ARCH_MODEL_x86_32
stefank@2314: # include "adfiles/ad_x86_32.hpp"
stefank@2314: #endif
stefank@2314: #ifdef TARGET_ARCH_MODEL_x86_64
stefank@2314: # include "adfiles/ad_x86_64.hpp"
stefank@2314: #endif
stefank@2314: #ifdef TARGET_ARCH_MODEL_sparc
stefank@2314: # include "adfiles/ad_sparc.hpp"
stefank@2314: #endif
stefank@2314: #ifdef TARGET_ARCH_MODEL_zero
stefank@2314: # include "adfiles/ad_zero.hpp"
stefank@2314: #endif
bobv@2508: #ifdef TARGET_ARCH_MODEL_arm
bobv@2508: # include "adfiles/ad_arm.hpp"
bobv@2508: #endif
bobv@2508: #ifdef TARGET_ARCH_MODEL_ppc
bobv@2508: # include "adfiles/ad_ppc.hpp"
bobv@2508: #endif
duke@435: 
duke@435: 
duke@435: // For debugging purposes:
duke@435: //  To force FullGCALot inside a runtime function, add the following two lines
duke@435: //
duke@435: //  Universe::release_fullgc_alot_dummy();
duke@435: //  MarkSweep::invoke(0, "Debugging");
duke@435: //
duke@435: // At command line specify the parameters: -XX:+FullGCALot -XX:FullGCALotStart=100000000
duke@435: 
duke@435: 
duke@435: 
duke@435: 
duke@435: // Compiled code entry points
duke@435: address OptoRuntime::_new_instance_Java                           = NULL;
duke@435: address OptoRuntime::_new_array_Java                              = NULL;
kvn@3157: address OptoRuntime::_new_array_nozero_Java                       = NULL;
duke@435: address OptoRuntime::_multianewarray2_Java                        = NULL;
duke@435: address OptoRuntime::_multianewarray3_Java                        = NULL;
duke@435: address OptoRuntime::_multianewarray4_Java                        = NULL;
duke@435: address OptoRuntime::_multianewarray5_Java                        = NULL;
iveresov@3002: address OptoRuntime::_multianewarrayN_Java                        = NULL;
ysr@777: address OptoRuntime::_g1_wb_pre_Java                              = NULL;
ysr@777: address OptoRuntime::_g1_wb_post_Java                             = NULL;
duke@435: address OptoRuntime::_vtable_must_compile_Java                    = NULL;
duke@435: address OptoRuntime::_complete_monitor_locking_Java               = NULL;
duke@435: address OptoRuntime::_rethrow_Java                                = NULL;
duke@435: 
duke@435: address OptoRuntime::_slow_arraycopy_Java                         = NULL;
duke@435: address OptoRuntime::_register_finalizer_Java                     = NULL;
duke@435: 
duke@435: # ifdef ENABLE_ZAP_DEAD_LOCALS
duke@435: address OptoRuntime::_zap_dead_Java_locals_Java                   = NULL;
duke@435: address OptoRuntime::_zap_dead_native_locals_Java                 = NULL;
duke@435: # endif
duke@435: 
never@2950: ExceptionBlob* OptoRuntime::_exception_blob;
duke@435: 
duke@435: // This should be called in an assertion at the start of OptoRuntime routines
duke@435: // which are entered from compiled code (all of them)
duke@435: #ifndef PRODUCT
duke@435: static bool check_compiled_frame(JavaThread* thread) {
duke@435:   assert(thread->last_frame().is_runtime_frame(), "cannot call runtime directly from compiled code");
duke@435: #ifdef ASSERT
duke@435:   RegisterMap map(thread, false);
duke@435:   frame caller = thread->last_frame().sender(&map);
duke@435:   assert(caller.is_compiled_frame(), "not being called from compiled like code");
duke@435: #endif  /* ASSERT */
duke@435:   return true;
duke@435: }
duke@435: #endif
duke@435: 
duke@435: 
duke@435: #define gen(env, var, type_func_gen, c_func, fancy_jump, pass_tls, save_arg_regs, return_pc) \
duke@435:   var = generate_stub(env, type_func_gen, CAST_FROM_FN_PTR(address, c_func), #var, fancy_jump, pass_tls, save_arg_regs, return_pc)
duke@435: 
duke@435: void OptoRuntime::generate(ciEnv* env) {
duke@435: 
duke@435:   generate_exception_blob();
duke@435: 
duke@435:   // Note: tls: Means fetching the return oop out of the thread-local storage
duke@435:   //
duke@435:   //   variable/name                       type-function-gen              , runtime method                  ,fncy_jp, tls,save_args,retpc
duke@435:   // -------------------------------------------------------------------------------------------------------------------------------
duke@435:   gen(env, _new_instance_Java              , new_instance_Type            , new_instance_C                  ,    0 , true , false, false);
duke@435:   gen(env, _new_array_Java                 , new_array_Type               , new_array_C                     ,    0 , true , false, false);
kvn@3157:   gen(env, _new_array_nozero_Java          , new_array_Type               , new_array_nozero_C              ,    0 , true , false, false);
duke@435:   gen(env, _multianewarray2_Java           , multianewarray2_Type         , multianewarray2_C               ,    0 , true , false, false);
duke@435:   gen(env, _multianewarray3_Java           , multianewarray3_Type         , multianewarray3_C               ,    0 , true , false, false);
duke@435:   gen(env, _multianewarray4_Java           , multianewarray4_Type         , multianewarray4_C               ,    0 , true , false, false);
duke@435:   gen(env, _multianewarray5_Java           , multianewarray5_Type         , multianewarray5_C               ,    0 , true , false, false);
iveresov@3002:   gen(env, _multianewarrayN_Java           , multianewarrayN_Type         , multianewarrayN_C               ,    0 , true , false, false);
ysr@777:   gen(env, _g1_wb_pre_Java                 , g1_wb_pre_Type               , SharedRuntime::g1_wb_pre        ,    0 , false, false, false);
ysr@777:   gen(env, _g1_wb_post_Java                , g1_wb_post_Type              , SharedRuntime::g1_wb_post       ,    0 , false, false, false);
duke@435:   gen(env, _complete_monitor_locking_Java  , complete_monitor_enter_Type  , SharedRuntime::complete_monitor_locking_C      ,    0 , false, false, false);
duke@435:   gen(env, _rethrow_Java                   , rethrow_Type                 , rethrow_C                       ,    2 , true , false, true );
duke@435: 
duke@435:   gen(env, _slow_arraycopy_Java            , slow_arraycopy_Type          , SharedRuntime::slow_arraycopy_C ,    0 , false, false, false);
duke@435:   gen(env, _register_finalizer_Java        , register_finalizer_Type      , register_finalizer              ,    0 , false, false, false);
duke@435: 
duke@435: # ifdef ENABLE_ZAP_DEAD_LOCALS
duke@435:   gen(env, _zap_dead_Java_locals_Java      , zap_dead_locals_Type         , zap_dead_Java_locals_C          ,    0 , false, true , false );
duke@435:   gen(env, _zap_dead_native_locals_Java    , zap_dead_locals_Type         , zap_dead_native_locals_C        ,    0 , false, true , false );
duke@435: # endif
duke@435: 
duke@435: }
duke@435: 
duke@435: #undef gen
duke@435: 
duke@435: 
duke@435: // Helper method to do generation of RunTimeStub's
duke@435: address OptoRuntime::generate_stub( ciEnv* env,
duke@435:                                     TypeFunc_generator gen, address C_function,
duke@435:                                     const char *name, int is_fancy_jump,
duke@435:                                     bool pass_tls,
duke@435:                                     bool save_argument_registers,
duke@435:                                     bool return_pc ) {
duke@435:   ResourceMark rm;
duke@435:   Compile C( env, gen, C_function, name, is_fancy_jump, pass_tls, save_argument_registers, return_pc );
duke@435:   return  C.stub_entry_point();
duke@435: }
duke@435: 
duke@435: const char* OptoRuntime::stub_name(address entry) {
duke@435: #ifndef PRODUCT
duke@435:   CodeBlob* cb = CodeCache::find_blob(entry);
duke@435:   RuntimeStub* rs =(RuntimeStub *)cb;
duke@435:   assert(rs != NULL && rs->is_runtime_stub(), "not a runtime stub");
duke@435:   return rs->name();
duke@435: #else
duke@435:   // Fast implementation for product mode (maybe it should be inlined too)
duke@435:   return "runtime stub";
duke@435: #endif
duke@435: }
duke@435: 
duke@435: 
duke@435: //=============================================================================
duke@435: // Opto compiler runtime routines
duke@435: //=============================================================================
duke@435: 
duke@435: 
duke@435: //=============================allocation======================================
duke@435: // We failed the fast-path allocation.  Now we need to do a scavenge or GC
duke@435: // and try allocation again.
duke@435: 
ysr@1601: void OptoRuntime::new_store_pre_barrier(JavaThread* thread) {
duke@435:   // After any safepoint, just before going back to compiled code,
ysr@1462:   // we inform the GC that we will be doing initializing writes to
ysr@1462:   // this object in the future without emitting card-marks, so
ysr@1462:   // GC may take any compensating steps.
ysr@1462:   // NOTE: Keep this code consistent with GraphKit::store_barrier.
duke@435: 
duke@435:   oop new_obj = thread->vm_result();
duke@435:   if (new_obj == NULL)  return;
duke@435: 
duke@435:   assert(Universe::heap()->can_elide_tlab_store_barriers(),
duke@435:          "compiler must check this first");
ysr@1462:   // GC may decide to give back a safer copy of new_obj.
ysr@1601:   new_obj = Universe::heap()->new_store_pre_barrier(thread, new_obj);
duke@435:   thread->set_vm_result(new_obj);
duke@435: }
duke@435: 
duke@435: // object allocation
duke@435: JRT_BLOCK_ENTRY(void, OptoRuntime::new_instance_C(klassOopDesc* klass, JavaThread* thread))
duke@435:   JRT_BLOCK;
duke@435: #ifndef PRODUCT
duke@435:   SharedRuntime::_new_instance_ctr++;         // new instance requires GC
duke@435: #endif
duke@435:   assert(check_compiled_frame(thread), "incorrect caller");
duke@435: 
duke@435:   // These checks are cheap to make and support reflective allocation.
duke@435:   int lh = Klass::cast(klass)->layout_helper();
duke@435:   if (Klass::layout_helper_needs_slow_path(lh)
duke@435:       || !instanceKlass::cast(klass)->is_initialized()) {
duke@435:     KlassHandle kh(THREAD, klass);
duke@435:     kh->check_valid_for_instantiation(false, THREAD);
duke@435:     if (!HAS_PENDING_EXCEPTION) {
duke@435:       instanceKlass::cast(kh())->initialize(THREAD);
duke@435:     }
duke@435:     if (!HAS_PENDING_EXCEPTION) {
duke@435:       klass = kh();
duke@435:     } else {
duke@435:       klass = NULL;
duke@435:     }
duke@435:   }
duke@435: 
duke@435:   if (klass != NULL) {
duke@435:     // Scavenge and allocate an instance.
duke@435:     oop result = instanceKlass::cast(klass)->allocate_instance(THREAD);
duke@435:     thread->set_vm_result(result);
duke@435: 
duke@435:     // Pass oops back through thread local storage.  Our apparent type to Java
duke@435:     // is that we return an oop, but we can block on exit from this routine and
duke@435:     // a GC can trash the oop in C's return register.  The generated stub will
duke@435:     // fetch the oop from TLS after any possible GC.
duke@435:   }
duke@435: 
duke@435:   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
duke@435:   JRT_BLOCK_END;
duke@435: 
duke@435:   if (GraphKit::use_ReduceInitialCardMarks()) {
ysr@1462:     // inform GC that we won't do card marks for initializing writes.
ysr@1601:     new_store_pre_barrier(thread);
duke@435:   }
duke@435: JRT_END
duke@435: 
duke@435: 
duke@435: // array allocation
duke@435: JRT_BLOCK_ENTRY(void, OptoRuntime::new_array_C(klassOopDesc* array_type, int len, JavaThread *thread))
duke@435:   JRT_BLOCK;
duke@435: #ifndef PRODUCT
duke@435:   SharedRuntime::_new_array_ctr++;            // new array requires GC
duke@435: #endif
duke@435:   assert(check_compiled_frame(thread), "incorrect caller");
duke@435: 
duke@435:   // Scavenge and allocate an instance.
duke@435:   oop result;
duke@435: 
duke@435:   if (Klass::cast(array_type)->oop_is_typeArray()) {
duke@435:     // The oopFactory likes to work with the element type.
duke@435:     // (We could bypass the oopFactory, since it doesn't add much value.)
duke@435:     BasicType elem_type = typeArrayKlass::cast(array_type)->element_type();
duke@435:     result = oopFactory::new_typeArray(elem_type, len, THREAD);
duke@435:   } else {
duke@435:     // Although the oopFactory likes to work with the elem_type,
duke@435:     // the compiler prefers the array_type, since it must already have
duke@435:     // that latter value in hand for the fast path.
duke@435:     klassOopDesc* elem_type = objArrayKlass::cast(array_type)->element_klass();
duke@435:     result = oopFactory::new_objArray(elem_type, len, THREAD);
duke@435:   }
duke@435: 
duke@435:   // Pass oops back through thread local storage.  Our apparent type to Java
duke@435:   // is that we return an oop, but we can block on exit from this routine and
duke@435:   // a GC can trash the oop in C's return register.  The generated stub will
duke@435:   // fetch the oop from TLS after any possible GC.
duke@435:   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
duke@435:   thread->set_vm_result(result);
duke@435:   JRT_BLOCK_END;
duke@435: 
duke@435:   if (GraphKit::use_ReduceInitialCardMarks()) {
ysr@1462:     // inform GC that we won't do card marks for initializing writes.
ysr@1601:     new_store_pre_barrier(thread);
duke@435:   }
duke@435: JRT_END
duke@435: 
kvn@3157: // array allocation without zeroing
kvn@3157: JRT_BLOCK_ENTRY(void, OptoRuntime::new_array_nozero_C(klassOopDesc* array_type, int len, JavaThread *thread))
kvn@3157:   JRT_BLOCK;
kvn@3157: #ifndef PRODUCT
kvn@3157:   SharedRuntime::_new_array_ctr++;            // new array requires GC
kvn@3157: #endif
kvn@3157:   assert(check_compiled_frame(thread), "incorrect caller");
kvn@3157: 
kvn@3157:   // Scavenge and allocate an instance.
kvn@3157:   oop result;
kvn@3157: 
kvn@3157:   assert(Klass::cast(array_type)->oop_is_typeArray(), "should be called only for type array");
kvn@3157:   // The oopFactory likes to work with the element type.
kvn@3157:   BasicType elem_type = typeArrayKlass::cast(array_type)->element_type();
kvn@3157:   result = oopFactory::new_typeArray_nozero(elem_type, len, THREAD);
kvn@3157: 
kvn@3157:   // Pass oops back through thread local storage.  Our apparent type to Java
kvn@3157:   // is that we return an oop, but we can block on exit from this routine and
kvn@3157:   // a GC can trash the oop in C's return register.  The generated stub will
kvn@3157:   // fetch the oop from TLS after any possible GC.
kvn@3157:   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
kvn@3157:   thread->set_vm_result(result);
kvn@3157:   JRT_BLOCK_END;
kvn@3157: 
kvn@3157:   if (GraphKit::use_ReduceInitialCardMarks()) {
kvn@3157:     // inform GC that we won't do card marks for initializing writes.
kvn@3157:     new_store_pre_barrier(thread);
kvn@3157:   }
kvn@3259: 
kvn@3259:   oop result = thread->vm_result();
kvn@3259:   if ((len > 0) && (result != NULL) &&
kvn@3259:       is_deoptimized_caller_frame(thread)) {
kvn@3259:     // Zero array here if the caller is deoptimized.
kvn@3259:     int size = ((typeArrayOop)result)->object_size();
kvn@3259:     BasicType elem_type = typeArrayKlass::cast(array_type)->element_type();
kvn@3259:     const size_t hs = arrayOopDesc::header_size(elem_type);
kvn@3259:     // Align to next 8 bytes to avoid trashing arrays's length.
kvn@3259:     const size_t aligned_hs = align_object_offset(hs);
kvn@3259:     HeapWord* obj = (HeapWord*)result;
kvn@3259:     if (aligned_hs > hs) {
kvn@3259:       Copy::zero_to_words(obj+hs, aligned_hs-hs);
kvn@3259:     }
kvn@3259:     // Optimized zeroing.
kvn@3259:     Copy::fill_to_aligned_words(obj+aligned_hs, size-aligned_hs);
kvn@3259:   }
kvn@3259: 
kvn@3157: JRT_END
kvn@3157: 
duke@435: // Note: multianewarray for one dimension is handled inline by GraphKit::new_array.
duke@435: 
duke@435: // multianewarray for 2 dimensions
duke@435: JRT_ENTRY(void, OptoRuntime::multianewarray2_C(klassOopDesc* elem_type, int len1, int len2, JavaThread *thread))
duke@435: #ifndef PRODUCT
duke@435:   SharedRuntime::_multi2_ctr++;                // multianewarray for 1 dimension
duke@435: #endif
duke@435:   assert(check_compiled_frame(thread), "incorrect caller");
duke@435:   assert(oop(elem_type)->is_klass(), "not a class");
duke@435:   jint dims[2];
duke@435:   dims[0] = len1;
duke@435:   dims[1] = len2;
duke@435:   oop obj = arrayKlass::cast(elem_type)->multi_allocate(2, dims, THREAD);
duke@435:   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
duke@435:   thread->set_vm_result(obj);
duke@435: JRT_END
duke@435: 
duke@435: // multianewarray for 3 dimensions
duke@435: JRT_ENTRY(void, OptoRuntime::multianewarray3_C(klassOopDesc* elem_type, int len1, int len2, int len3, JavaThread *thread))
duke@435: #ifndef PRODUCT
duke@435:   SharedRuntime::_multi3_ctr++;                // multianewarray for 1 dimension
duke@435: #endif
duke@435:   assert(check_compiled_frame(thread), "incorrect caller");
duke@435:   assert(oop(elem_type)->is_klass(), "not a class");
duke@435:   jint dims[3];
duke@435:   dims[0] = len1;
duke@435:   dims[1] = len2;
duke@435:   dims[2] = len3;
duke@435:   oop obj = arrayKlass::cast(elem_type)->multi_allocate(3, dims, THREAD);
duke@435:   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
duke@435:   thread->set_vm_result(obj);
duke@435: JRT_END
duke@435: 
duke@435: // multianewarray for 4 dimensions
duke@435: JRT_ENTRY(void, OptoRuntime::multianewarray4_C(klassOopDesc* elem_type, int len1, int len2, int len3, int len4, JavaThread *thread))
duke@435: #ifndef PRODUCT
duke@435:   SharedRuntime::_multi4_ctr++;                // multianewarray for 1 dimension
duke@435: #endif
duke@435:   assert(check_compiled_frame(thread), "incorrect caller");
duke@435:   assert(oop(elem_type)->is_klass(), "not a class");
duke@435:   jint dims[4];
duke@435:   dims[0] = len1;
duke@435:   dims[1] = len2;
duke@435:   dims[2] = len3;
duke@435:   dims[3] = len4;
duke@435:   oop obj = arrayKlass::cast(elem_type)->multi_allocate(4, dims, THREAD);
duke@435:   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
duke@435:   thread->set_vm_result(obj);
duke@435: JRT_END
duke@435: 
duke@435: // multianewarray for 5 dimensions
duke@435: JRT_ENTRY(void, OptoRuntime::multianewarray5_C(klassOopDesc* elem_type, int len1, int len2, int len3, int len4, int len5, JavaThread *thread))
duke@435: #ifndef PRODUCT
duke@435:   SharedRuntime::_multi5_ctr++;                // multianewarray for 1 dimension
duke@435: #endif
duke@435:   assert(check_compiled_frame(thread), "incorrect caller");
duke@435:   assert(oop(elem_type)->is_klass(), "not a class");
duke@435:   jint dims[5];
duke@435:   dims[0] = len1;
duke@435:   dims[1] = len2;
duke@435:   dims[2] = len3;
duke@435:   dims[3] = len4;
duke@435:   dims[4] = len5;
duke@435:   oop obj = arrayKlass::cast(elem_type)->multi_allocate(5, dims, THREAD);
duke@435:   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
duke@435:   thread->set_vm_result(obj);
duke@435: JRT_END
duke@435: 
iveresov@3002: JRT_ENTRY(void, OptoRuntime::multianewarrayN_C(klassOopDesc* elem_type, arrayOopDesc* dims, JavaThread *thread))
iveresov@3002:   assert(check_compiled_frame(thread), "incorrect caller");
iveresov@3002:   assert(oop(elem_type)->is_klass(), "not a class");
iveresov@3002:   assert(oop(dims)->is_typeArray(), "not an array");
iveresov@3002: 
iveresov@3002:   ResourceMark rm;
iveresov@3002:   jint len = dims->length();
iveresov@3002:   assert(len > 0, "Dimensions array should contain data");
iveresov@3002:   jint *j_dims = typeArrayOop(dims)->int_at_addr(0);
iveresov@3002:   jint *c_dims = NEW_RESOURCE_ARRAY(jint, len);
iveresov@3002:   Copy::conjoint_jints_atomic(j_dims, c_dims, len);
iveresov@3002: 
iveresov@3002:   oop obj = arrayKlass::cast(elem_type)->multi_allocate(len, c_dims, THREAD);
iveresov@3002:   deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
iveresov@3002:   thread->set_vm_result(obj);
iveresov@3002: JRT_END
iveresov@3002: 
iveresov@3002: 
duke@435: const TypeFunc *OptoRuntime::new_instance_Type() {
duke@435:   // create input type (domain)
duke@435:   const Type **fields = TypeTuple::fields(1);
duke@435:   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated
duke@435:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);
duke@435: 
duke@435:   // create result type (range)
duke@435:   fields = TypeTuple::fields(1);
duke@435:   fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop
duke@435: 
duke@435:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
duke@435: 
duke@435:   return TypeFunc::make(domain, range);
duke@435: }
duke@435: 
duke@435: 
duke@435: const TypeFunc *OptoRuntime::athrow_Type() {
duke@435:   // create input type (domain)
duke@435:   const Type **fields = TypeTuple::fields(1);
duke@435:   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated
duke@435:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);
duke@435: 
duke@435:   // create result type (range)
duke@435:   fields = TypeTuple::fields(0);
duke@435: 
duke@435:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields);
duke@435: 
duke@435:   return TypeFunc::make(domain, range);
duke@435: }
duke@435: 
duke@435: 
duke@435: const TypeFunc *OptoRuntime::new_array_Type() {
duke@435:   // create input type (domain)
duke@435:   const Type **fields = TypeTuple::fields(2);
duke@435:   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL;   // element klass
duke@435:   fields[TypeFunc::Parms+1] = TypeInt::INT;       // array size
duke@435:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
duke@435: 
duke@435:   // create result type (range)
duke@435:   fields = TypeTuple::fields(1);
duke@435:   fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop
duke@435: 
duke@435:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
duke@435: 
duke@435:   return TypeFunc::make(domain, range);
duke@435: }
duke@435: 
duke@435: const TypeFunc *OptoRuntime::multianewarray_Type(int ndim) {
duke@435:   // create input type (domain)
duke@435:   const int nargs = ndim + 1;
duke@435:   const Type **fields = TypeTuple::fields(nargs);
duke@435:   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL;   // element klass
duke@435:   for( int i = 1; i < nargs; i++ )
duke@435:     fields[TypeFunc::Parms + i] = TypeInt::INT;       // array size
duke@435:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+nargs, fields);
duke@435: 
duke@435:   // create result type (range)
duke@435:   fields = TypeTuple::fields(1);
duke@435:   fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop
duke@435:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
duke@435: 
duke@435:   return TypeFunc::make(domain, range);
duke@435: }
duke@435: 
duke@435: const TypeFunc *OptoRuntime::multianewarray2_Type() {
duke@435:   return multianewarray_Type(2);
duke@435: }
duke@435: 
duke@435: const TypeFunc *OptoRuntime::multianewarray3_Type() {
duke@435:   return multianewarray_Type(3);
duke@435: }
duke@435: 
duke@435: const TypeFunc *OptoRuntime::multianewarray4_Type() {
duke@435:   return multianewarray_Type(4);
duke@435: }
duke@435: 
duke@435: const TypeFunc *OptoRuntime::multianewarray5_Type() {
duke@435:   return multianewarray_Type(5);
duke@435: }
duke@435: 
iveresov@3002: const TypeFunc *OptoRuntime::multianewarrayN_Type() {
iveresov@3002:   // create input type (domain)
iveresov@3002:   const Type **fields = TypeTuple::fields(2);
iveresov@3002:   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL;   // element klass
iveresov@3002:   fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL;   // array of dim sizes
iveresov@3002:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
iveresov@3002: 
iveresov@3002:   // create result type (range)
iveresov@3002:   fields = TypeTuple::fields(1);
iveresov@3002:   fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop
iveresov@3002:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
iveresov@3002: 
iveresov@3002:   return TypeFunc::make(domain, range);
iveresov@3002: }
iveresov@3002: 
ysr@777: const TypeFunc *OptoRuntime::g1_wb_pre_Type() {
ysr@777:   const Type **fields = TypeTuple::fields(2);
ysr@777:   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // original field value
ysr@777:   fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread
ysr@777:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
ysr@777: 
ysr@777:   // create result type (range)
ysr@777:   fields = TypeTuple::fields(0);
ysr@777:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields);
ysr@777: 
ysr@777:   return TypeFunc::make(domain, range);
ysr@777: }
ysr@777: 
ysr@777: const TypeFunc *OptoRuntime::g1_wb_post_Type() {
ysr@777: 
ysr@777:   const Type **fields = TypeTuple::fields(2);
ysr@777:   fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL;  // Card addr
ysr@777:   fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL;  // thread
ysr@777:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
ysr@777: 
ysr@777:   // create result type (range)
ysr@777:   fields = TypeTuple::fields(0);
ysr@777:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);
ysr@777: 
ysr@777:   return TypeFunc::make(domain, range);
ysr@777: }
ysr@777: 
duke@435: const TypeFunc *OptoRuntime::uncommon_trap_Type() {
duke@435:   // create input type (domain)
duke@435:   const Type **fields = TypeTuple::fields(1);
coleenp@2497:   // Symbol* name of class to be loaded
duke@435:   fields[TypeFunc::Parms+0] = TypeInt::INT;
duke@435:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);
duke@435: 
duke@435:   // create result type (range)
duke@435:   fields = TypeTuple::fields(0);
duke@435:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields);
duke@435: 
duke@435:   return TypeFunc::make(domain, range);
duke@435: }
duke@435: 
duke@435: # ifdef ENABLE_ZAP_DEAD_LOCALS
duke@435: // Type used for stub generation for zap_dead_locals.
duke@435: // No inputs or outputs
duke@435: const TypeFunc *OptoRuntime::zap_dead_locals_Type() {
duke@435:   // create input type (domain)
duke@435:   const Type **fields = TypeTuple::fields(0);
duke@435:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms,fields);
duke@435: 
duke@435:   // create result type (range)
duke@435:   fields = TypeTuple::fields(0);
duke@435:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms,fields);
duke@435: 
duke@435:   return TypeFunc::make(domain,range);
duke@435: }
duke@435: # endif
duke@435: 
duke@435: 
duke@435: //-----------------------------------------------------------------------------
duke@435: // Monitor Handling
duke@435: const TypeFunc *OptoRuntime::complete_monitor_enter_Type() {
duke@435:   // create input type (domain)
duke@435:   const Type **fields = TypeTuple::fields(2);
duke@435:   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL;  // Object to be Locked
duke@435:   fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM;   // Address of stack location for lock
duke@435:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);
duke@435: 
duke@435:   // create result type (range)
duke@435:   fields = TypeTuple::fields(0);
duke@435: 
duke@435:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);
duke@435: 
duke@435:   return TypeFunc::make(domain,range);
duke@435: }
duke@435: 
duke@435: 
duke@435: //-----------------------------------------------------------------------------
duke@435: const TypeFunc *OptoRuntime::complete_monitor_exit_Type() {
duke@435:   // create input type (domain)
duke@435:   const Type **fields = TypeTuple::fields(2);
duke@435:   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL;  // Object to be Locked
duke@435:   fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM;   // Address of stack location for lock
duke@435:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);
duke@435: 
duke@435:   // create result type (range)
duke@435:   fields = TypeTuple::fields(0);
duke@435: 
duke@435:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);
duke@435: 
duke@435:   return TypeFunc::make(domain,range);
duke@435: }
duke@435: 
duke@435: const TypeFunc* OptoRuntime::flush_windows_Type() {
duke@435:   // create input type (domain)
duke@435:   const Type** fields = TypeTuple::fields(1);
duke@435:   fields[TypeFunc::Parms+0] = NULL; // void
duke@435:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms, fields);
duke@435: 
duke@435:   // create result type
duke@435:   fields = TypeTuple::fields(1);
duke@435:   fields[TypeFunc::Parms+0] = NULL; // void
duke@435:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);
duke@435: 
duke@435:   return TypeFunc::make(domain, range);
duke@435: }
duke@435: 
duke@435: const TypeFunc* OptoRuntime::l2f_Type() {
duke@435:   // create input type (domain)
duke@435:   const Type **fields = TypeTuple::fields(2);
duke@435:   fields[TypeFunc::Parms+0] = TypeLong::LONG;
duke@435:   fields[TypeFunc::Parms+1] = Type::HALF;
duke@435:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
duke@435: 
duke@435:   // create result type (range)
duke@435:   fields = TypeTuple::fields(1);
duke@435:   fields[TypeFunc::Parms+0] = Type::FLOAT;
duke@435:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
duke@435: 
duke@435:   return TypeFunc::make(domain, range);
duke@435: }
duke@435: 
duke@435: const TypeFunc* OptoRuntime::modf_Type() {
duke@435:   const Type **fields = TypeTuple::fields(2);
duke@435:   fields[TypeFunc::Parms+0] = Type::FLOAT;
duke@435:   fields[TypeFunc::Parms+1] = Type::FLOAT;
duke@435:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
duke@435: 
duke@435:   // create result type (range)
duke@435:   fields = TypeTuple::fields(1);
duke@435:   fields[TypeFunc::Parms+0] = Type::FLOAT;
duke@435: 
duke@435:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
duke@435: 
duke@435:   return TypeFunc::make(domain, range);
duke@435: }
duke@435: 
duke@435: const TypeFunc *OptoRuntime::Math_D_D_Type() {
duke@435:   // create input type (domain)
duke@435:   const Type **fields = TypeTuple::fields(2);
coleenp@2497:   // Symbol* name of class to be loaded
duke@435:   fields[TypeFunc::Parms+0] = Type::DOUBLE;
duke@435:   fields[TypeFunc::Parms+1] = Type::HALF;
duke@435:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
duke@435: 
duke@435:   // create result type (range)
duke@435:   fields = TypeTuple::fields(2);
duke@435:   fields[TypeFunc::Parms+0] = Type::DOUBLE;
duke@435:   fields[TypeFunc::Parms+1] = Type::HALF;
duke@435:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields);
duke@435: 
duke@435:   return TypeFunc::make(domain, range);
duke@435: }
duke@435: 
duke@435: const TypeFunc* OptoRuntime::Math_DD_D_Type() {
duke@435:   const Type **fields = TypeTuple::fields(4);
duke@435:   fields[TypeFunc::Parms+0] = Type::DOUBLE;
duke@435:   fields[TypeFunc::Parms+1] = Type::HALF;
duke@435:   fields[TypeFunc::Parms+2] = Type::DOUBLE;
duke@435:   fields[TypeFunc::Parms+3] = Type::HALF;
duke@435:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+4, fields);
duke@435: 
duke@435:   // create result type (range)
duke@435:   fields = TypeTuple::fields(2);
duke@435:   fields[TypeFunc::Parms+0] = Type::DOUBLE;
duke@435:   fields[TypeFunc::Parms+1] = Type::HALF;
duke@435:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields);
duke@435: 
duke@435:   return TypeFunc::make(domain, range);
duke@435: }
duke@435: 
rbackman@3709: //-------------- currentTimeMillis, currentTimeNanos, etc
duke@435: 
rbackman@3709: const TypeFunc* OptoRuntime::void_long_Type() {
duke@435:   // create input type (domain)
duke@435:   const Type **fields = TypeTuple::fields(0);
duke@435:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+0, fields);
duke@435: 
duke@435:   // create result type (range)
duke@435:   fields = TypeTuple::fields(2);
duke@435:   fields[TypeFunc::Parms+0] = TypeLong::LONG;
duke@435:   fields[TypeFunc::Parms+1] = Type::HALF;
duke@435:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields);
duke@435: 
duke@435:   return TypeFunc::make(domain, range);
duke@435: }
duke@435: 
duke@435: // arraycopy stub variations:
duke@435: enum ArrayCopyType {
duke@435:   ac_fast,                      // void(ptr, ptr, size_t)
duke@435:   ac_checkcast,                 //  int(ptr, ptr, size_t, size_t, ptr)
duke@435:   ac_slow,                      // void(ptr, int, ptr, int, int)
duke@435:   ac_generic                    //  int(ptr, int, ptr, int, int)
duke@435: };
duke@435: 
duke@435: static const TypeFunc* make_arraycopy_Type(ArrayCopyType act) {
duke@435:   // create input type (domain)
duke@435:   int num_args      = (act == ac_fast ? 3 : 5);
duke@435:   int num_size_args = (act == ac_fast ? 1 : act == ac_checkcast ? 2 : 0);
duke@435:   int argcnt = num_args;
duke@435:   LP64_ONLY(argcnt += num_size_args); // halfwords for lengths
duke@435:   const Type** fields = TypeTuple::fields(argcnt);
duke@435:   int argp = TypeFunc::Parms;
duke@435:   fields[argp++] = TypePtr::NOTNULL;    // src
duke@435:   if (num_size_args == 0) {
duke@435:     fields[argp++] = TypeInt::INT;      // src_pos
duke@435:   }
duke@435:   fields[argp++] = TypePtr::NOTNULL;    // dest
duke@435:   if (num_size_args == 0) {
duke@435:     fields[argp++] = TypeInt::INT;      // dest_pos
duke@435:     fields[argp++] = TypeInt::INT;      // length
duke@435:   }
duke@435:   while (num_size_args-- > 0) {
duke@435:     fields[argp++] = TypeX_X;               // size in whatevers (size_t)
duke@435:     LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length
duke@435:   }
duke@435:   if (act == ac_checkcast) {
duke@435:     fields[argp++] = TypePtr::NOTNULL;  // super_klass
duke@435:   }
duke@435:   assert(argp == TypeFunc::Parms+argcnt, "correct decoding of act");
duke@435:   const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);
duke@435: 
duke@435:   // create result type if needed
duke@435:   int retcnt = (act == ac_checkcast || act == ac_generic ? 1 : 0);
duke@435:   fields = TypeTuple::fields(1);
duke@435:   if (retcnt == 0)
duke@435:     fields[TypeFunc::Parms+0] = NULL; // void
duke@435:   else
duke@435:     fields[TypeFunc::Parms+0] = TypeInt::INT; // status result, if needed
duke@435:   const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+retcnt, fields);
duke@435:   return TypeFunc::make(domain, range);
duke@435: }
duke@435: 
duke@435: const TypeFunc* OptoRuntime::fast_arraycopy_Type() {
duke@435:   // This signature is simple:  Two base pointers and a size_t.
duke@435:   return make_arraycopy_Type(ac_fast);
duke@435: }
duke@435: 
duke@435: const TypeFunc* OptoRuntime::checkcast_arraycopy_Type() {
duke@435:   // An extension of fast_arraycopy_Type which adds type checking.
duke@435:   return make_arraycopy_Type(ac_checkcast);
duke@435: }
duke@435: 
duke@435: const TypeFunc* OptoRuntime::slow_arraycopy_Type() {
duke@435:   // This signature is exactly the same as System.arraycopy.
duke@435:   // There are no intptr_t (int/long) arguments.
duke@435:   return make_arraycopy_Type(ac_slow);
duke@435: }
duke@435: 
duke@435: const TypeFunc* OptoRuntime::generic_arraycopy_Type() {
duke@435:   // This signature is like System.arraycopy, except that it returns status.
duke@435:   return make_arraycopy_Type(ac_generic);
duke@435: }
duke@435: 
duke@435: 
never@2118: const TypeFunc* OptoRuntime::array_fill_Type() {
never@2199:   // create input type (domain): pointer, int, size_t
never@2199:   const Type** fields = TypeTuple::fields(3 LP64_ONLY( + 1));
never@2199:   int argp = TypeFunc::Parms;
never@2199:   fields[argp++] = TypePtr::NOTNULL;
never@2199:   fields[argp++] = TypeInt::INT;
never@2199:   fields[argp++] = TypeX_X;               // size in whatevers (size_t)
never@2199:   LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length
never@2199:   const TypeTuple *domain = TypeTuple::make(argp, fields);
never@2118: 
never@2118:   // create result type
never@2118:   fields = TypeTuple::fields(1);
never@2118:   fields[TypeFunc::Parms+0] = NULL; // void
never@2118:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);
never@2118: 
never@2118:   return TypeFunc::make(domain, range);
never@2118: }
never@2118: 
duke@435: //------------- Interpreter state access for on stack replacement
duke@435: const TypeFunc* OptoRuntime::osr_end_Type() {
duke@435:   // create input type (domain)
duke@435:   const Type **fields = TypeTuple::fields(1);
duke@435:   fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // OSR temp buf
duke@435:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);
duke@435: 
duke@435:   // create result type
duke@435:   fields = TypeTuple::fields(1);
duke@435:   // fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // locked oop
duke@435:   fields[TypeFunc::Parms+0] = NULL; // void
duke@435:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);
duke@435:   return TypeFunc::make(domain, range);
duke@435: }
duke@435: 
duke@435: //-------------- methodData update helpers
duke@435: 
duke@435: const TypeFunc* OptoRuntime::profile_receiver_type_Type() {
duke@435:   // create input type (domain)
duke@435:   const Type **fields = TypeTuple::fields(2);
duke@435:   fields[TypeFunc::Parms+0] = TypeAryPtr::NOTNULL;    // methodData pointer
duke@435:   fields[TypeFunc::Parms+1] = TypeInstPtr::BOTTOM;    // receiver oop
duke@435:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
duke@435: 
duke@435:   // create result type
duke@435:   fields = TypeTuple::fields(1);
duke@435:   fields[TypeFunc::Parms+0] = NULL; // void
duke@435:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);
duke@435:   return TypeFunc::make(domain,range);
duke@435: }
duke@435: 
duke@435: JRT_LEAF(void, OptoRuntime::profile_receiver_type_C(DataLayout* data, oopDesc* receiver))
duke@435:   if (receiver == NULL) return;
duke@435:   klassOop receiver_klass = receiver->klass();
duke@435: 
duke@435:   intptr_t* mdp = ((intptr_t*)(data)) + DataLayout::header_size_in_cells();
duke@435:   int empty_row = -1;           // free row, if any is encountered
duke@435: 
duke@435:   // ReceiverTypeData* vc = new ReceiverTypeData(mdp);
duke@435:   for (uint row = 0; row < ReceiverTypeData::row_limit(); row++) {
duke@435:     // if (vc->receiver(row) == receiver_klass)
duke@435:     int receiver_off = ReceiverTypeData::receiver_cell_index(row);
duke@435:     intptr_t row_recv = *(mdp + receiver_off);
duke@435:     if (row_recv == (intptr_t) receiver_klass) {
duke@435:       // vc->set_receiver_count(row, vc->receiver_count(row) + DataLayout::counter_increment);
duke@435:       int count_off = ReceiverTypeData::receiver_count_cell_index(row);
duke@435:       *(mdp + count_off) += DataLayout::counter_increment;
duke@435:       return;
duke@435:     } else if (row_recv == 0) {
duke@435:       // else if (vc->receiver(row) == NULL)
duke@435:       empty_row = (int) row;
duke@435:     }
duke@435:   }
duke@435: 
duke@435:   if (empty_row != -1) {
duke@435:     int receiver_off = ReceiverTypeData::receiver_cell_index(empty_row);
duke@435:     // vc->set_receiver(empty_row, receiver_klass);
duke@435:     *(mdp + receiver_off) = (intptr_t) receiver_klass;
duke@435:     // vc->set_receiver_count(empty_row, DataLayout::counter_increment);
duke@435:     int count_off = ReceiverTypeData::receiver_count_cell_index(empty_row);
duke@435:     *(mdp + count_off) = DataLayout::counter_increment;
kvn@1641:   } else {
kvn@1641:     // Receiver did not match any saved receiver and there is no empty row for it.
kvn@1686:     // Increment total counter to indicate polymorphic case.
kvn@1641:     intptr_t* count_p = (intptr_t*)(((byte*)(data)) + in_bytes(CounterData::count_offset()));
kvn@1641:     *count_p += DataLayout::counter_increment;
duke@435:   }
duke@435: JRT_END
duke@435: 
duke@435: //-----------------------------------------------------------------------------
duke@435: // implicit exception support.
duke@435: 
duke@435: static void report_null_exception_in_code_cache(address exception_pc) {
duke@435:   ResourceMark rm;
duke@435:   CodeBlob* n = CodeCache::find_blob(exception_pc);
duke@435:   if (n != NULL) {
duke@435:     tty->print_cr("#");
duke@435:     tty->print_cr("# HotSpot Runtime Error, null exception in generated code");
duke@435:     tty->print_cr("#");
duke@435:     tty->print_cr("# pc where exception happened = " INTPTR_FORMAT, exception_pc);
duke@435: 
duke@435:     if (n->is_nmethod()) {
duke@435:       methodOop method = ((nmethod*)n)->method();
duke@435:       tty->print_cr("# Method where it happened %s.%s ", Klass::cast(method->method_holder())->name()->as_C_string(), method->name()->as_C_string());
duke@435:       tty->print_cr("#");
kamg@3853:       if (ShowMessageBoxOnError && UpdateHotSpotCompilerFileOnError &&
kamg@3853:           CompilerOracle::has_command_file()) {
duke@435:         const char* title    = "HotSpot Runtime Error";
duke@435:         const char* question = "Do you want to exclude compilation of this method in future runs?";
duke@435:         if (os::message_box(title, question)) {
duke@435:           CompilerOracle::append_comment_to_file("");
duke@435:           CompilerOracle::append_comment_to_file("Null exception in compiled code resulted in the following exclude");
duke@435:           CompilerOracle::append_comment_to_file("");
duke@435:           CompilerOracle::append_exclude_to_file(method);
duke@435:           tty->print_cr("#");
duke@435:           tty->print_cr("# %s has been updated to exclude the specified method", CompileCommandFile);
duke@435:           tty->print_cr("#");
duke@435:         }
duke@435:       }
duke@435:       fatal("Implicit null exception happened in compiled method");
duke@435:     } else {
duke@435:       n->print();
duke@435:       fatal("Implicit null exception happened in generated stub");
duke@435:     }
duke@435:   }
duke@435:   fatal("Implicit null exception at wrong place");
duke@435: }
duke@435: 
duke@435: 
duke@435: //-------------------------------------------------------------------------------------
duke@435: // register policy
duke@435: 
duke@435: bool OptoRuntime::is_callee_saved_register(MachRegisterNumbers reg) {
duke@435:   assert(reg >= 0 && reg < _last_Mach_Reg, "must be a machine register");
duke@435:   switch (register_save_policy[reg]) {
duke@435:     case 'C': return false; //SOC
duke@435:     case 'E': return true ; //SOE
duke@435:     case 'N': return false; //NS
duke@435:     case 'A': return false; //AS
duke@435:   }
duke@435:   ShouldNotReachHere();
duke@435:   return false;
duke@435: }
duke@435: 
duke@435: //-----------------------------------------------------------------------
duke@435: // Exceptions
duke@435: //
duke@435: 
duke@435: static void trace_exception(oop exception_oop, address exception_pc, const char* msg) PRODUCT_RETURN;
duke@435: 
duke@435: // The method is an entry that is always called by a C++ method not
duke@435: // directly from compiled code. Compiled code will call the C++ method following.
duke@435: // We can't allow async exception to be installed during  exception processing.
duke@435: JRT_ENTRY_NO_ASYNC(address, OptoRuntime::handle_exception_C_helper(JavaThread* thread, nmethod* &nm))
duke@435: 
duke@435:   // Do not confuse exception_oop with pending_exception. The exception_oop
duke@435:   // is only used to pass arguments into the method. Not for general
duke@435:   // exception handling.  DO NOT CHANGE IT to use pending_exception, since
duke@435:   // the runtime stubs checks this on exit.
duke@435:   assert(thread->exception_oop() != NULL, "exception oop is found");
duke@435:   address handler_address = NULL;
duke@435: 
duke@435:   Handle exception(thread, thread->exception_oop());
duke@435: 
duke@435:   if (TraceExceptions) {
duke@435:     trace_exception(exception(), thread->exception_pc(), "");
duke@435:   }
duke@435:   // for AbortVMOnException flag
duke@435:   NOT_PRODUCT(Exceptions::debug_check_abort(exception));
duke@435: 
duke@435:   #ifdef ASSERT
never@1577:     if (!(exception->is_a(SystemDictionary::Throwable_klass()))) {
duke@435:       // should throw an exception here
duke@435:       ShouldNotReachHere();
duke@435:     }
duke@435:   #endif
duke@435: 
duke@435: 
duke@435:   // new exception handling: this method is entered only from adapters
duke@435:   // exceptions from compiled java methods are handled in compiled code
duke@435:   // using rethrow node
duke@435: 
duke@435:   address pc = thread->exception_pc();
duke@435:   nm = CodeCache::find_nmethod(pc);
duke@435:   assert(nm != NULL, "No NMethod found");
duke@435:   if (nm->is_native_method()) {
duke@435:     fatal("Native mathod should not have path to exception handling");
duke@435:   } else {
duke@435:     // we are switching to old paradigm: search for exception handler in caller_frame
duke@435:     // instead in exception handler of caller_frame.sender()
duke@435: 
dcubed@1648:     if (JvmtiExport::can_post_on_exceptions()) {
duke@435:       // "Full-speed catching" is not necessary here,
duke@435:       // since we're notifying the VM on every catch.
duke@435:       // Force deoptimization and the rest of the lookup
duke@435:       // will be fine.
duke@435:       deoptimize_caller_frame(thread, true);
duke@435:     }
duke@435: 
duke@435:     // Check the stack guard pages.  If enabled, look for handler in this frame;
duke@435:     // otherwise, forcibly unwind the frame.
duke@435:     //
duke@435:     // 4826555: use default current sp for reguard_stack instead of &nm: it's more accurate.
duke@435:     bool force_unwind = !thread->reguard_stack();
duke@435:     bool deopting = false;
duke@435:     if (nm->is_deopt_pc(pc)) {
duke@435:       deopting = true;
duke@435:       RegisterMap map(thread, false);
duke@435:       frame deoptee = thread->last_frame().sender(&map);
duke@435:       assert(deoptee.is_deoptimized_frame(), "must be deopted");
duke@435:       // Adjust the pc back to the original throwing pc
duke@435:       pc = deoptee.pc();
duke@435:     }
duke@435: 
duke@435:     // If we are forcing an unwind because of stack overflow then deopt is
duke@435:     // irrelevant sice we are throwing the frame away anyway.
duke@435: 
duke@435:     if (deopting && !force_unwind) {
duke@435:       handler_address = SharedRuntime::deopt_blob()->unpack_with_exception();
duke@435:     } else {
duke@435: 
duke@435:       handler_address =
duke@435:         force_unwind ? NULL : nm->handler_for_exception_and_pc(exception, pc);
duke@435: 
duke@435:       if (handler_address == NULL) {
kvn@3194:         Handle original_exception(thread, exception());
duke@435:         handler_address = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true);
duke@435:         assert (handler_address != NULL, "must have compiled handler");
kvn@3194:         // Update the exception cache only when the unwind was not forced
kvn@3194:         // and there didn't happen another exception during the computation of the
kvn@3194:         // compiled exception handler.
kvn@3194:         if (!force_unwind && original_exception() == exception()) {
duke@435:           nm->add_handler_for_exception_and_pc(exception,pc,handler_address);
duke@435:         }
duke@435:       } else {
duke@435:         assert(handler_address == SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true), "Must be the same");
duke@435:       }
duke@435:     }
duke@435: 
duke@435:     thread->set_exception_pc(pc);
duke@435:     thread->set_exception_handler_pc(handler_address);
twisti@1570: 
twisti@1730:     // Check if the exception PC is a MethodHandle call site.
twisti@1803:     thread->set_is_method_handle_return(nm->is_method_handle_return(pc));
duke@435:   }
duke@435: 
duke@435:   // Restore correct return pc.  Was saved above.
duke@435:   thread->set_exception_oop(exception());
duke@435:   return handler_address;
duke@435: 
duke@435: JRT_END
duke@435: 
duke@435: // We are entering here from exception_blob
duke@435: // If there is a compiled exception handler in this method, we will continue there;
duke@435: // otherwise we will unwind the stack and continue at the caller of top frame method
duke@435: // Note we enter without the usual JRT wrapper. We will call a helper routine that
duke@435: // will do the normal VM entry. We do it this way so that we can see if the nmethod
duke@435: // we looked up the handler for has been deoptimized in the meantime. If it has been
duke@435: // we must not use the handler and instread return the deopt blob.
duke@435: address OptoRuntime::handle_exception_C(JavaThread* thread) {
duke@435: //
duke@435: // We are in Java not VM and in debug mode we have a NoHandleMark
duke@435: //
duke@435: #ifndef PRODUCT
duke@435:   SharedRuntime::_find_handler_ctr++;          // find exception handler
duke@435: #endif
duke@435:   debug_only(NoHandleMark __hm;)
duke@435:   nmethod* nm = NULL;
duke@435:   address handler_address = NULL;
duke@435:   {
duke@435:     // Enter the VM
duke@435: 
duke@435:     ResetNoHandleMark rnhm;
duke@435:     handler_address = handle_exception_C_helper(thread, nm);
duke@435:   }
duke@435: 
duke@435:   // Back in java: Use no oops, DON'T safepoint
duke@435: 
duke@435:   // Now check to see if the handler we are returning is in a now
duke@435:   // deoptimized frame
duke@435: 
duke@435:   if (nm != NULL) {
duke@435:     RegisterMap map(thread, false);
duke@435:     frame caller = thread->last_frame().sender(&map);
duke@435: #ifdef ASSERT
duke@435:     assert(caller.is_compiled_frame(), "must be");
duke@435: #endif // ASSERT
duke@435:     if (caller.is_deoptimized_frame()) {
duke@435:       handler_address = SharedRuntime::deopt_blob()->unpack_with_exception();
duke@435:     }
duke@435:   }
duke@435:   return handler_address;
duke@435: }
duke@435: 
duke@435: //------------------------------rethrow----------------------------------------
duke@435: // We get here after compiled code has executed a 'RethrowNode'.  The callee
duke@435: // is either throwing or rethrowing an exception.  The callee-save registers
duke@435: // have been restored, synchronized objects have been unlocked and the callee
duke@435: // stack frame has been removed.  The return address was passed in.
duke@435: // Exception oop is passed as the 1st argument.  This routine is then called
duke@435: // from the stub.  On exit, we know where to jump in the caller's code.
duke@435: // After this C code exits, the stub will pop his frame and end in a jump
duke@435: // (instead of a return).  We enter the caller's default handler.
duke@435: //
duke@435: // This must be JRT_LEAF:
duke@435: //     - caller will not change its state as we cannot block on exit,
duke@435: //       therefore raw_exception_handler_for_return_address is all it takes
duke@435: //       to handle deoptimized blobs
duke@435: //
duke@435: // However, there needs to be a safepoint check in the middle!  So compiled
duke@435: // safepoints are completely watertight.
duke@435: //
duke@435: // Thus, it cannot be a leaf since it contains the No_GC_Verifier.
duke@435: //
duke@435: // *THIS IS NOT RECOMMENDED PROGRAMMING STYLE*
duke@435: //
duke@435: address OptoRuntime::rethrow_C(oopDesc* exception, JavaThread* thread, address ret_pc) {
duke@435: #ifndef PRODUCT
duke@435:   SharedRuntime::_rethrow_ctr++;               // count rethrows
duke@435: #endif
duke@435:   assert (exception != NULL, "should have thrown a NULLPointerException");
duke@435: #ifdef ASSERT
never@1577:   if (!(exception->is_a(SystemDictionary::Throwable_klass()))) {
duke@435:     // should throw an exception here
duke@435:     ShouldNotReachHere();
duke@435:   }
duke@435: #endif
duke@435: 
duke@435:   thread->set_vm_result(exception);
duke@435:   // Frame not compiled (handles deoptimization blob)
twisti@1730:   return SharedRuntime::raw_exception_handler_for_return_address(thread, ret_pc);
duke@435: }
duke@435: 
duke@435: 
duke@435: const TypeFunc *OptoRuntime::rethrow_Type() {
duke@435:   // create input type (domain)
duke@435:   const Type **fields = TypeTuple::fields(1);
duke@435:   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop
duke@435:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields);
duke@435: 
duke@435:   // create result type (range)
duke@435:   fields = TypeTuple::fields(1);
duke@435:   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop
duke@435:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
duke@435: 
duke@435:   return TypeFunc::make(domain, range);
duke@435: }
duke@435: 
duke@435: 
duke@435: void OptoRuntime::deoptimize_caller_frame(JavaThread *thread, bool doit) {
duke@435:   // Deoptimize frame
duke@435:   if (doit) {
duke@435:     // Called from within the owner thread, so no need for safepoint
duke@435:     RegisterMap reg_map(thread);
duke@435:     frame stub_frame = thread->last_frame();
duke@435:     assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check");
duke@435:     frame caller_frame = stub_frame.sender(&reg_map);
duke@435: 
twisti@3244:     // Deoptimize the caller frame.
dcubed@1648:     Deoptimization::deoptimize_frame(thread, caller_frame.id());
duke@435:   }
duke@435: }
duke@435: 
duke@435: 
kvn@3259: bool OptoRuntime::is_deoptimized_caller_frame(JavaThread *thread) {
kvn@3259:   // Called from within the owner thread, so no need for safepoint
kvn@3259:   RegisterMap reg_map(thread);
kvn@3259:   frame stub_frame = thread->last_frame();
kvn@3259:   assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check");
kvn@3259:   frame caller_frame = stub_frame.sender(&reg_map);
kvn@3259:   return caller_frame.is_deoptimized_frame();
kvn@3259: }
kvn@3259: 
kvn@3259: 
duke@435: const TypeFunc *OptoRuntime::register_finalizer_Type() {
duke@435:   // create input type (domain)
duke@435:   const Type **fields = TypeTuple::fields(1);
duke@435:   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL;  // oop;          Receiver
duke@435:   // // The JavaThread* is passed to each routine as the last argument
duke@435:   // fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL;  // JavaThread *; Executing thread
duke@435:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields);
duke@435: 
duke@435:   // create result type (range)
duke@435:   fields = TypeTuple::fields(0);
duke@435: 
duke@435:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);
duke@435: 
duke@435:   return TypeFunc::make(domain,range);
duke@435: }
duke@435: 
duke@435: 
duke@435: //-----------------------------------------------------------------------------
duke@435: // Dtrace support.  entry and exit probes have the same signature
duke@435: const TypeFunc *OptoRuntime::dtrace_method_entry_exit_Type() {
duke@435:   // create input type (domain)
duke@435:   const Type **fields = TypeTuple::fields(2);
duke@435:   fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage
duke@435:   fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL;  // methodOop;    Method we are entering
duke@435:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);
duke@435: 
duke@435:   // create result type (range)
duke@435:   fields = TypeTuple::fields(0);
duke@435: 
duke@435:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);
duke@435: 
duke@435:   return TypeFunc::make(domain,range);
duke@435: }
duke@435: 
duke@435: const TypeFunc *OptoRuntime::dtrace_object_alloc_Type() {
duke@435:   // create input type (domain)
duke@435:   const Type **fields = TypeTuple::fields(2);
duke@435:   fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage
duke@435:   fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL;  // oop;    newly allocated object
duke@435: 
duke@435:   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);
duke@435: 
duke@435:   // create result type (range)
duke@435:   fields = TypeTuple::fields(0);
duke@435: 
duke@435:   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);
duke@435: 
duke@435:   return TypeFunc::make(domain,range);
duke@435: }
duke@435: 
duke@435: 
duke@435: JRT_ENTRY_NO_ASYNC(void, OptoRuntime::register_finalizer(oopDesc* obj, JavaThread* thread))
duke@435:   assert(obj->is_oop(), "must be a valid oop");
duke@435:   assert(obj->klass()->klass_part()->has_finalizer(), "shouldn't be here otherwise");
duke@435:   instanceKlass::register_finalizer(instanceOop(obj), CHECK);
duke@435: JRT_END
duke@435: 
duke@435: //-----------------------------------------------------------------------------
duke@435: 
duke@435: NamedCounter * volatile OptoRuntime::_named_counters = NULL;
duke@435: 
duke@435: //
duke@435: // dump the collected NamedCounters.
duke@435: //
duke@435: void OptoRuntime::print_named_counters() {
duke@435:   int total_lock_count = 0;
duke@435:   int eliminated_lock_count = 0;
duke@435: 
duke@435:   NamedCounter* c = _named_counters;
duke@435:   while (c) {
duke@435:     if (c->tag() == NamedCounter::LockCounter || c->tag() == NamedCounter::EliminatedLockCounter) {
duke@435:       int count = c->count();
duke@435:       if (count > 0) {
duke@435:         bool eliminated = c->tag() == NamedCounter::EliminatedLockCounter;
duke@435:         if (Verbose) {
duke@435:           tty->print_cr("%d %s%s", count, c->name(), eliminated ? " (eliminated)" : "");
duke@435:         }
duke@435:         total_lock_count += count;
duke@435:         if (eliminated) {
duke@435:           eliminated_lock_count += count;
duke@435:         }
duke@435:       }
duke@435:     } else if (c->tag() == NamedCounter::BiasedLockingCounter) {
duke@435:       BiasedLockingCounters* blc = ((BiasedLockingNamedCounter*)c)->counters();
duke@435:       if (blc->nonzero()) {
duke@435:         tty->print_cr("%s", c->name());
duke@435:         blc->print_on(tty);
duke@435:       }
duke@435:     }
duke@435:     c = c->next();
duke@435:   }
duke@435:   if (total_lock_count > 0) {
duke@435:     tty->print_cr("dynamic locks: %d", total_lock_count);
duke@435:     if (eliminated_lock_count) {
duke@435:       tty->print_cr("eliminated locks: %d (%d%%)", eliminated_lock_count,
duke@435:                     (int)(eliminated_lock_count * 100.0 / total_lock_count));
duke@435:     }
duke@435:   }
duke@435: }
duke@435: 
duke@435: //
duke@435: //  Allocate a new NamedCounter.  The JVMState is used to generate the
duke@435: //  name which consists of method@line for the inlining tree.
duke@435: //
duke@435: 
duke@435: NamedCounter* OptoRuntime::new_named_counter(JVMState* youngest_jvms, NamedCounter::CounterTag tag) {
duke@435:   int max_depth = youngest_jvms->depth();
duke@435: 
duke@435:   // Visit scopes from youngest to oldest.
duke@435:   bool first = true;
duke@435:   stringStream st;
duke@435:   for (int depth = max_depth; depth >= 1; depth--) {
duke@435:     JVMState* jvms = youngest_jvms->of_depth(depth);
duke@435:     ciMethod* m = jvms->has_method() ? jvms->method() : NULL;
duke@435:     if (!first) {
duke@435:       st.print(" ");
duke@435:     } else {
duke@435:       first = false;
duke@435:     }
duke@435:     int bci = jvms->bci();
duke@435:     if (bci < 0) bci = 0;
duke@435:     st.print("%s.%s@%d", m->holder()->name()->as_utf8(), m->name()->as_utf8(), bci);
duke@435:     // To print linenumbers instead of bci use: m->line_number_from_bci(bci)
duke@435:   }
duke@435:   NamedCounter* c;
duke@435:   if (tag == NamedCounter::BiasedLockingCounter) {
duke@435:     c = new BiasedLockingNamedCounter(strdup(st.as_string()));
duke@435:   } else {
duke@435:     c = new NamedCounter(strdup(st.as_string()), tag);
duke@435:   }
duke@435: 
duke@435:   // atomically add the new counter to the head of the list.  We only
duke@435:   // add counters so this is safe.
duke@435:   NamedCounter* head;
duke@435:   do {
duke@435:     head = _named_counters;
duke@435:     c->set_next(head);
duke@435:   } while (Atomic::cmpxchg_ptr(c, &_named_counters, head) != head);
duke@435:   return c;
duke@435: }
duke@435: 
duke@435: //-----------------------------------------------------------------------------
duke@435: // Non-product code
duke@435: #ifndef PRODUCT
duke@435: 
duke@435: int trace_exception_counter = 0;
duke@435: static void trace_exception(oop exception_oop, address exception_pc, const char* msg) {
duke@435:   ttyLocker ttyl;
duke@435:   trace_exception_counter++;
duke@435:   tty->print("%d [Exception (%s): ", trace_exception_counter, msg);
duke@435:   exception_oop->print_value();
duke@435:   tty->print(" in ");
duke@435:   CodeBlob* blob = CodeCache::find_blob(exception_pc);
duke@435:   if (blob->is_nmethod()) {
duke@435:     ((nmethod*)blob)->method()->print_value();
duke@435:   } else if (blob->is_runtime_stub()) {
duke@435:     tty->print("<runtime-stub>");
duke@435:   } else {
duke@435:     tty->print("<unknown>");
duke@435:   }
duke@435:   tty->print(" at " INTPTR_FORMAT,  exception_pc);
duke@435:   tty->print_cr("]");
duke@435: }
duke@435: 
duke@435: #endif  // PRODUCT
duke@435: 
duke@435: 
duke@435: # ifdef ENABLE_ZAP_DEAD_LOCALS
duke@435: // Called from call sites in compiled code with oop maps (actually safepoints)
duke@435: // Zaps dead locals in first java frame.
duke@435: // Is entry because may need to lock to generate oop maps
duke@435: // Currently, only used for compiler frames, but someday may be used
duke@435: // for interpreter frames, too.
duke@435: 
duke@435: int OptoRuntime::ZapDeadCompiledLocals_count = 0;
duke@435: 
duke@435: // avoid pointers to member funcs with these helpers
duke@435: static bool is_java_frame(  frame* f) { return f->is_java_frame();   }
duke@435: static bool is_native_frame(frame* f) { return f->is_native_frame(); }
duke@435: 
duke@435: 
duke@435: void OptoRuntime::zap_dead_java_or_native_locals(JavaThread* thread,
duke@435:                                                 bool (*is_this_the_right_frame_to_zap)(frame*)) {
duke@435:   assert(JavaThread::current() == thread, "is this needed?");
duke@435: 
duke@435:   if ( !ZapDeadCompiledLocals )  return;
duke@435: 
duke@435:   bool skip = false;
duke@435: 
duke@435:        if ( ZapDeadCompiledLocalsFirst  ==  0  ) ; // nothing special
duke@435:   else if ( ZapDeadCompiledLocalsFirst  >  ZapDeadCompiledLocals_count )  skip = true;
duke@435:   else if ( ZapDeadCompiledLocalsFirst  == ZapDeadCompiledLocals_count )
duke@435:     warning("starting zapping after skipping");
duke@435: 
duke@435:        if ( ZapDeadCompiledLocalsLast  ==  -1  ) ; // nothing special
duke@435:   else if ( ZapDeadCompiledLocalsLast  <   ZapDeadCompiledLocals_count )  skip = true;
duke@435:   else if ( ZapDeadCompiledLocalsLast  ==  ZapDeadCompiledLocals_count )
duke@435:     warning("about to zap last zap");
duke@435: 
duke@435:   ++ZapDeadCompiledLocals_count; // counts skipped zaps, too
duke@435: 
duke@435:   if ( skip )  return;
duke@435: 
duke@435:   // find java frame and zap it
duke@435: 
duke@435:   for (StackFrameStream sfs(thread);  !sfs.is_done();  sfs.next()) {
duke@435:     if (is_this_the_right_frame_to_zap(sfs.current()) ) {
duke@435:       sfs.current()->zap_dead_locals(thread, sfs.register_map());
duke@435:       return;
duke@435:     }
duke@435:   }
duke@435:   warning("no frame found to zap in zap_dead_Java_locals_C");
duke@435: }
duke@435: 
duke@435: JRT_LEAF(void, OptoRuntime::zap_dead_Java_locals_C(JavaThread* thread))
duke@435:   zap_dead_java_or_native_locals(thread, is_java_frame);
duke@435: JRT_END
duke@435: 
duke@435: // The following does not work because for one thing, the
duke@435: // thread state is wrong; it expects java, but it is native.
twisti@1040: // Also, the invariants in a native stub are different and
duke@435: // I'm not sure it is safe to have a MachCalRuntimeDirectNode
duke@435: // in there.
duke@435: // So for now, we do not zap in native stubs.
duke@435: 
duke@435: JRT_LEAF(void, OptoRuntime::zap_dead_native_locals_C(JavaThread* thread))
duke@435:   zap_dead_java_or_native_locals(thread, is_native_frame);
duke@435: JRT_END
duke@435: 
duke@435: # endif