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      1 /*
      2  * Copyright (C) 2012 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include "interpreter.h"
     18 
     19 #include <math.h>
     20 
     21 #include "base/logging.h"
     22 #include "class_linker-inl.h"
     23 #include "common_throws.h"
     24 #include "dex_file-inl.h"
     25 #include "dex_instruction-inl.h"
     26 #include "dex_instruction.h"
     27 #include "entrypoints/entrypoint_utils.h"
     28 #include "gc/accounting/card_table-inl.h"
     29 #include "invoke_arg_array_builder.h"
     30 #include "nth_caller_visitor.h"
     31 #include "mirror/art_field-inl.h"
     32 #include "mirror/art_method.h"
     33 #include "mirror/art_method-inl.h"
     34 #include "mirror/class.h"
     35 #include "mirror/class-inl.h"
     36 #include "mirror/object-inl.h"
     37 #include "mirror/object_array-inl.h"
     38 #include "object_utils.h"
     39 #include "ScopedLocalRef.h"
     40 #include "scoped_thread_state_change.h"
     41 #include "thread.h"
     42 #include "well_known_classes.h"
     43 
     44 using ::art::mirror::ArtField;
     45 using ::art::mirror::ArtMethod;
     46 using ::art::mirror::Array;
     47 using ::art::mirror::BooleanArray;
     48 using ::art::mirror::ByteArray;
     49 using ::art::mirror::CharArray;
     50 using ::art::mirror::Class;
     51 using ::art::mirror::ClassLoader;
     52 using ::art::mirror::IntArray;
     53 using ::art::mirror::LongArray;
     54 using ::art::mirror::Object;
     55 using ::art::mirror::ObjectArray;
     56 using ::art::mirror::ShortArray;
     57 using ::art::mirror::String;
     58 using ::art::mirror::Throwable;
     59 
     60 namespace art {
     61 
     62 namespace interpreter {
     63 
     64 static const int32_t kMaxInt = std::numeric_limits<int32_t>::max();
     65 static const int32_t kMinInt = std::numeric_limits<int32_t>::min();
     66 static const int64_t kMaxLong = std::numeric_limits<int64_t>::max();
     67 static const int64_t kMinLong = std::numeric_limits<int64_t>::min();
     68 
     69 static void UnstartedRuntimeInvoke(Thread* self, MethodHelper& mh,
     70                                    const DexFile::CodeItem* code_item, ShadowFrame* shadow_frame,
     71                                    JValue* result, size_t arg_offset)
     72     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
     73   // In a runtime that's not started we intercept certain methods to avoid complicated dependency
     74   // problems in core libraries.
     75   std::string name(PrettyMethod(shadow_frame->GetMethod()));
     76   if (name == "java.lang.Class java.lang.Class.forName(java.lang.String)") {
     77     std::string descriptor(DotToDescriptor(shadow_frame->GetVRegReference(arg_offset)->AsString()->ToModifiedUtf8().c_str()));
     78     ClassLoader* class_loader = NULL;  // shadow_frame.GetMethod()->GetDeclaringClass()->GetClassLoader();
     79     Class* found = Runtime::Current()->GetClassLinker()->FindClass(descriptor.c_str(),
     80                                                                    class_loader);
     81     CHECK(found != NULL) << "Class.forName failed in un-started runtime for class: "
     82         << PrettyDescriptor(descriptor);
     83     result->SetL(found);
     84   } else if (name == "java.lang.Object java.lang.Class.newInstance()") {
     85     Class* klass = shadow_frame->GetVRegReference(arg_offset)->AsClass();
     86     ArtMethod* c = klass->FindDeclaredDirectMethod("<init>", "()V");
     87     CHECK(c != NULL);
     88     SirtRef<Object> obj(self, klass->AllocObject(self));
     89     CHECK(obj.get() != NULL);
     90     EnterInterpreterFromInvoke(self, c, obj.get(), NULL, NULL);
     91     result->SetL(obj.get());
     92   } else if (name == "java.lang.reflect.Field java.lang.Class.getDeclaredField(java.lang.String)") {
     93     // Special managed code cut-out to allow field lookup in a un-started runtime that'd fail
     94     // going the reflective Dex way.
     95     Class* klass = shadow_frame->GetVRegReference(arg_offset)->AsClass();
     96     String* name = shadow_frame->GetVRegReference(arg_offset + 1)->AsString();
     97     ArtField* found = NULL;
     98     FieldHelper fh;
     99     ObjectArray<ArtField>* fields = klass->GetIFields();
    100     for (int32_t i = 0; i < fields->GetLength() && found == NULL; ++i) {
    101       ArtField* f = fields->Get(i);
    102       fh.ChangeField(f);
    103       if (name->Equals(fh.GetName())) {
    104         found = f;
    105       }
    106     }
    107     if (found == NULL) {
    108       fields = klass->GetSFields();
    109       for (int32_t i = 0; i < fields->GetLength() && found == NULL; ++i) {
    110         ArtField* f = fields->Get(i);
    111         fh.ChangeField(f);
    112         if (name->Equals(fh.GetName())) {
    113           found = f;
    114         }
    115       }
    116     }
    117     CHECK(found != NULL)
    118       << "Failed to find field in Class.getDeclaredField in un-started runtime. name="
    119       << name->ToModifiedUtf8() << " class=" << PrettyDescriptor(klass);
    120     // TODO: getDeclaredField calls GetType once the field is found to ensure a
    121     //       NoClassDefFoundError is thrown if the field's type cannot be resolved.
    122     Class* jlr_Field = self->DecodeJObject(WellKnownClasses::java_lang_reflect_Field)->AsClass();
    123     SirtRef<Object> field(self, jlr_Field->AllocObject(self));
    124     CHECK(field.get() != NULL);
    125     ArtMethod* c = jlr_Field->FindDeclaredDirectMethod("<init>", "(Ljava/lang/reflect/ArtField;)V");
    126     uint32_t args[1];
    127     args[0] = reinterpret_cast<uint32_t>(found);
    128     EnterInterpreterFromInvoke(self, c, field.get(), args, NULL);
    129     result->SetL(field.get());
    130   } else if (name == "void java.lang.System.arraycopy(java.lang.Object, int, java.lang.Object, int, int)" ||
    131              name == "void java.lang.System.arraycopy(char[], int, char[], int, int)") {
    132     // Special case array copying without initializing System.
    133     Class* ctype = shadow_frame->GetVRegReference(arg_offset)->GetClass()->GetComponentType();
    134     jint srcPos = shadow_frame->GetVReg(arg_offset + 1);
    135     jint dstPos = shadow_frame->GetVReg(arg_offset + 3);
    136     jint length = shadow_frame->GetVReg(arg_offset + 4);
    137     if (!ctype->IsPrimitive()) {
    138       ObjectArray<Object>* src = shadow_frame->GetVRegReference(arg_offset)->AsObjectArray<Object>();
    139       ObjectArray<Object>* dst = shadow_frame->GetVRegReference(arg_offset + 2)->AsObjectArray<Object>();
    140       for (jint i = 0; i < length; ++i) {
    141         dst->Set(dstPos + i, src->Get(srcPos + i));
    142       }
    143     } else if (ctype->IsPrimitiveChar()) {
    144       CharArray* src = shadow_frame->GetVRegReference(arg_offset)->AsCharArray();
    145       CharArray* dst = shadow_frame->GetVRegReference(arg_offset + 2)->AsCharArray();
    146       for (jint i = 0; i < length; ++i) {
    147         dst->Set(dstPos + i, src->Get(srcPos + i));
    148       }
    149     } else if (ctype->IsPrimitiveInt()) {
    150       IntArray* src = shadow_frame->GetVRegReference(arg_offset)->AsIntArray();
    151       IntArray* dst = shadow_frame->GetVRegReference(arg_offset + 2)->AsIntArray();
    152       for (jint i = 0; i < length; ++i) {
    153         dst->Set(dstPos + i, src->Get(srcPos + i));
    154       }
    155     } else {
    156       UNIMPLEMENTED(FATAL) << "System.arraycopy of unexpected type: " << PrettyDescriptor(ctype);
    157     }
    158   } else {
    159     // Not special, continue with regular interpreter execution.
    160     artInterpreterToInterpreterBridge(self, mh, code_item, shadow_frame, result);
    161   }
    162 }
    163 
    164 // Hand select a number of methods to be run in a not yet started runtime without using JNI.
    165 static void UnstartedRuntimeJni(Thread* self, ArtMethod* method,
    166                                 Object* receiver, uint32_t* args, JValue* result)
    167     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
    168   std::string name(PrettyMethod(method));
    169   if (name == "java.lang.ClassLoader dalvik.system.VMStack.getCallingClassLoader()") {
    170     result->SetL(NULL);
    171   } else if (name == "java.lang.Class dalvik.system.VMStack.getStackClass2()") {
    172     NthCallerVisitor visitor(self, 3);
    173     visitor.WalkStack();
    174     result->SetL(visitor.caller->GetDeclaringClass());
    175   } else if (name == "double java.lang.Math.log(double)") {
    176     JValue value;
    177     value.SetJ((static_cast<uint64_t>(args[1]) << 32) | args[0]);
    178     result->SetD(log(value.GetD()));
    179   } else if (name == "java.lang.String java.lang.Class.getNameNative()") {
    180     result->SetL(receiver->AsClass()->ComputeName());
    181   } else if (name == "int java.lang.Float.floatToRawIntBits(float)") {
    182     result->SetI(args[0]);
    183   } else if (name == "float java.lang.Float.intBitsToFloat(int)") {
    184     result->SetI(args[0]);
    185   } else if (name == "double java.lang.Math.exp(double)") {
    186     JValue value;
    187     value.SetJ((static_cast<uint64_t>(args[1]) << 32) | args[0]);
    188     result->SetD(exp(value.GetD()));
    189   } else if (name == "java.lang.Object java.lang.Object.internalClone()") {
    190     result->SetL(receiver->Clone(self));
    191   } else if (name == "void java.lang.Object.notifyAll()") {
    192     receiver->NotifyAll(self);
    193   } else if (name == "int java.lang.String.compareTo(java.lang.String)") {
    194     String* rhs = reinterpret_cast<Object*>(args[0])->AsString();
    195     CHECK(rhs != NULL);
    196     result->SetI(receiver->AsString()->CompareTo(rhs));
    197   } else if (name == "java.lang.String java.lang.String.intern()") {
    198     result->SetL(receiver->AsString()->Intern());
    199   } else if (name == "int java.lang.String.fastIndexOf(int, int)") {
    200     result->SetI(receiver->AsString()->FastIndexOf(args[0], args[1]));
    201   } else if (name == "java.lang.Object java.lang.reflect.Array.createMultiArray(java.lang.Class, int[])") {
    202     result->SetL(Array::CreateMultiArray(self, reinterpret_cast<Object*>(args[0])->AsClass(), reinterpret_cast<Object*>(args[1])->AsIntArray()));
    203   } else if (name == "java.lang.Object java.lang.Throwable.nativeFillInStackTrace()") {
    204     ScopedObjectAccessUnchecked soa(self);
    205     result->SetL(soa.Decode<Object*>(self->CreateInternalStackTrace(soa)));
    206   } else if (name == "boolean java.nio.ByteOrder.isLittleEndian()") {
    207     result->SetJ(JNI_TRUE);
    208   } else if (name == "boolean sun.misc.Unsafe.compareAndSwapInt(java.lang.Object, long, int, int)") {
    209     Object* obj = reinterpret_cast<Object*>(args[0]);
    210     jlong offset = (static_cast<uint64_t>(args[2]) << 32) | args[1];
    211     jint expectedValue = args[3];
    212     jint newValue = args[4];
    213     byte* raw_addr = reinterpret_cast<byte*>(obj) + offset;
    214     volatile int32_t* address = reinterpret_cast<volatile int32_t*>(raw_addr);
    215     // Note: android_atomic_release_cas() returns 0 on success, not failure.
    216     int r = android_atomic_release_cas(expectedValue, newValue, address);
    217     result->SetZ(r == 0);
    218   } else if (name == "void sun.misc.Unsafe.putObject(java.lang.Object, long, java.lang.Object)") {
    219     Object* obj = reinterpret_cast<Object*>(args[0]);
    220     Object* newValue = reinterpret_cast<Object*>(args[3]);
    221     obj->SetFieldObject(MemberOffset((static_cast<uint64_t>(args[2]) << 32) | args[1]), newValue, false);
    222   } else {
    223     LOG(FATAL) << "Attempt to invoke native method in non-started runtime: " << name;
    224   }
    225 }
    226 
    227 static void InterpreterJni(Thread* self, ArtMethod* method, StringPiece shorty,
    228                            Object* receiver, uint32_t* args, JValue* result)
    229     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
    230   // TODO: The following enters JNI code using a typedef-ed function rather than the JNI compiler,
    231   //       it should be removed and JNI compiled stubs used instead.
    232   ScopedObjectAccessUnchecked soa(self);
    233   if (method->IsStatic()) {
    234     if (shorty == "L") {
    235       typedef jobject (fnptr)(JNIEnv*, jclass);
    236       const fnptr* fn = reinterpret_cast<const fnptr*>(method->GetNativeMethod());
    237       ScopedLocalRef<jclass> klass(soa.Env(),
    238                                    soa.AddLocalReference<jclass>(method->GetDeclaringClass()));
    239       jobject jresult;
    240       {
    241         ScopedThreadStateChange tsc(self, kNative);
    242         jresult = fn(soa.Env(), klass.get());
    243       }
    244       result->SetL(soa.Decode<Object*>(jresult));
    245     } else if (shorty == "V") {
    246       typedef void (fnptr)(JNIEnv*, jclass);
    247       const fnptr* fn = reinterpret_cast<const fnptr*>(method->GetNativeMethod());
    248       ScopedLocalRef<jclass> klass(soa.Env(),
    249                                    soa.AddLocalReference<jclass>(method->GetDeclaringClass()));
    250       ScopedThreadStateChange tsc(self, kNative);
    251       fn(soa.Env(), klass.get());
    252     } else if (shorty == "Z") {
    253       typedef jboolean (fnptr)(JNIEnv*, jclass);
    254       const fnptr* fn = reinterpret_cast<const fnptr*>(method->GetNativeMethod());
    255       ScopedLocalRef<jclass> klass(soa.Env(),
    256                                    soa.AddLocalReference<jclass>(method->GetDeclaringClass()));
    257       ScopedThreadStateChange tsc(self, kNative);
    258       result->SetZ(fn(soa.Env(), klass.get()));
    259     } else if (shorty == "BI") {
    260       typedef jbyte (fnptr)(JNIEnv*, jclass, jint);
    261       const fnptr* fn = reinterpret_cast<const fnptr*>(method->GetNativeMethod());
    262       ScopedLocalRef<jclass> klass(soa.Env(),
    263                                    soa.AddLocalReference<jclass>(method->GetDeclaringClass()));
    264       ScopedThreadStateChange tsc(self, kNative);
    265       result->SetB(fn(soa.Env(), klass.get(), args[0]));
    266     } else if (shorty == "II") {
    267       typedef jint (fnptr)(JNIEnv*, jclass, jint);
    268       const fnptr* fn = reinterpret_cast<const fnptr*>(method->GetNativeMethod());
    269       ScopedLocalRef<jclass> klass(soa.Env(),
    270                                    soa.AddLocalReference<jclass>(method->GetDeclaringClass()));
    271       ScopedThreadStateChange tsc(self, kNative);
    272       result->SetI(fn(soa.Env(), klass.get(), args[0]));
    273     } else if (shorty == "LL") {
    274       typedef jobject (fnptr)(JNIEnv*, jclass, jobject);
    275       const fnptr* fn = reinterpret_cast<const fnptr*>(method->GetNativeMethod());
    276       ScopedLocalRef<jclass> klass(soa.Env(),
    277                                    soa.AddLocalReference<jclass>(method->GetDeclaringClass()));
    278       ScopedLocalRef<jobject> arg0(soa.Env(),
    279                                    soa.AddLocalReference<jobject>(reinterpret_cast<Object*>(args[0])));
    280       jobject jresult;
    281       {
    282         ScopedThreadStateChange tsc(self, kNative);
    283         jresult = fn(soa.Env(), klass.get(), arg0.get());
    284       }
    285       result->SetL(soa.Decode<Object*>(jresult));
    286     } else if (shorty == "IIZ") {
    287       typedef jint (fnptr)(JNIEnv*, jclass, jint, jboolean);
    288       const fnptr* fn = reinterpret_cast<const fnptr*>(method->GetNativeMethod());
    289       ScopedLocalRef<jclass> klass(soa.Env(),
    290                                    soa.AddLocalReference<jclass>(method->GetDeclaringClass()));
    291       ScopedThreadStateChange tsc(self, kNative);
    292       result->SetI(fn(soa.Env(), klass.get(), args[0], args[1]));
    293     } else if (shorty == "ILI") {
    294       typedef jint (fnptr)(JNIEnv*, jclass, jobject, jint);
    295       const fnptr* fn = reinterpret_cast<const fnptr*>(method->GetNativeMethod());
    296       ScopedLocalRef<jclass> klass(soa.Env(),
    297                                    soa.AddLocalReference<jclass>(method->GetDeclaringClass()));
    298       ScopedLocalRef<jobject> arg0(soa.Env(),
    299                                    soa.AddLocalReference<jobject>(reinterpret_cast<Object*>(args[0])));
    300       ScopedThreadStateChange tsc(self, kNative);
    301       result->SetI(fn(soa.Env(), klass.get(), arg0.get(), args[1]));
    302     } else if (shorty == "SIZ") {
    303       typedef jshort (fnptr)(JNIEnv*, jclass, jint, jboolean);
    304       const fnptr* fn = reinterpret_cast<const fnptr*>(method->GetNativeMethod());
    305       ScopedLocalRef<jclass> klass(soa.Env(),
    306                                    soa.AddLocalReference<jclass>(method->GetDeclaringClass()));
    307       ScopedThreadStateChange tsc(self, kNative);
    308       result->SetS(fn(soa.Env(), klass.get(), args[0], args[1]));
    309     } else if (shorty == "VIZ") {
    310       typedef void (fnptr)(JNIEnv*, jclass, jint, jboolean);
    311       const fnptr* fn = reinterpret_cast<const fnptr*>(method->GetNativeMethod());
    312       ScopedLocalRef<jclass> klass(soa.Env(),
    313                                    soa.AddLocalReference<jclass>(method->GetDeclaringClass()));
    314       ScopedThreadStateChange tsc(self, kNative);
    315       fn(soa.Env(), klass.get(), args[0], args[1]);
    316     } else if (shorty == "ZLL") {
    317       typedef jboolean (fnptr)(JNIEnv*, jclass, jobject, jobject);
    318       const fnptr* fn = reinterpret_cast<const fnptr*>(method->GetNativeMethod());
    319       ScopedLocalRef<jclass> klass(soa.Env(),
    320                                    soa.AddLocalReference<jclass>(method->GetDeclaringClass()));
    321       ScopedLocalRef<jobject> arg0(soa.Env(),
    322                                    soa.AddLocalReference<jobject>(reinterpret_cast<Object*>(args[0])));
    323       ScopedLocalRef<jobject> arg1(soa.Env(),
    324                                    soa.AddLocalReference<jobject>(reinterpret_cast<Object*>(args[1])));
    325       ScopedThreadStateChange tsc(self, kNative);
    326       result->SetZ(fn(soa.Env(), klass.get(), arg0.get(), arg1.get()));
    327     } else if (shorty == "ZILL") {
    328       typedef jboolean (fnptr)(JNIEnv*, jclass, jint, jobject, jobject);
    329       const fnptr* fn = reinterpret_cast<const fnptr*>(method->GetNativeMethod());
    330       ScopedLocalRef<jclass> klass(soa.Env(),
    331                                    soa.AddLocalReference<jclass>(method->GetDeclaringClass()));
    332       ScopedLocalRef<jobject> arg1(soa.Env(),
    333                                    soa.AddLocalReference<jobject>(reinterpret_cast<Object*>(args[1])));
    334       ScopedLocalRef<jobject> arg2(soa.Env(),
    335                                    soa.AddLocalReference<jobject>(reinterpret_cast<Object*>(args[2])));
    336       ScopedThreadStateChange tsc(self, kNative);
    337       result->SetZ(fn(soa.Env(), klass.get(), args[0], arg1.get(), arg2.get()));
    338     } else if (shorty == "VILII") {
    339       typedef void (fnptr)(JNIEnv*, jclass, jint, jobject, jint, jint);
    340       const fnptr* fn = reinterpret_cast<const fnptr*>(method->GetNativeMethod());
    341       ScopedLocalRef<jclass> klass(soa.Env(),
    342                                    soa.AddLocalReference<jclass>(method->GetDeclaringClass()));
    343       ScopedLocalRef<jobject> arg1(soa.Env(),
    344                                    soa.AddLocalReference<jobject>(reinterpret_cast<Object*>(args[1])));
    345       ScopedThreadStateChange tsc(self, kNative);
    346       fn(soa.Env(), klass.get(), args[0], arg1.get(), args[2], args[3]);
    347     } else if (shorty == "VLILII") {
    348       typedef void (fnptr)(JNIEnv*, jclass, jobject, jint, jobject, jint, jint);
    349       const fnptr* fn = reinterpret_cast<const fnptr*>(method->GetNativeMethod());
    350       ScopedLocalRef<jclass> klass(soa.Env(),
    351                                    soa.AddLocalReference<jclass>(method->GetDeclaringClass()));
    352       ScopedLocalRef<jobject> arg0(soa.Env(),
    353                                    soa.AddLocalReference<jobject>(reinterpret_cast<Object*>(args[0])));
    354       ScopedLocalRef<jobject> arg2(soa.Env(),
    355                                    soa.AddLocalReference<jobject>(reinterpret_cast<Object*>(args[2])));
    356       ScopedThreadStateChange tsc(self, kNative);
    357       fn(soa.Env(), klass.get(), arg0.get(), args[1], arg2.get(), args[3], args[4]);
    358     } else {
    359       LOG(FATAL) << "Do something with static native method: " << PrettyMethod(method)
    360           << " shorty: " << shorty;
    361     }
    362   } else {
    363     if (shorty == "L") {
    364       typedef jobject (fnptr)(JNIEnv*, jobject);
    365       const fnptr* fn = reinterpret_cast<const fnptr*>(method->GetNativeMethod());
    366       ScopedLocalRef<jobject> rcvr(soa.Env(),
    367                                    soa.AddLocalReference<jobject>(receiver));
    368       jobject jresult;
    369       {
    370         ScopedThreadStateChange tsc(self, kNative);
    371         jresult = fn(soa.Env(), rcvr.get());
    372       }
    373       result->SetL(soa.Decode<Object*>(jresult));
    374     } else if (shorty == "V") {
    375       typedef void (fnptr)(JNIEnv*, jobject);
    376       const fnptr* fn = reinterpret_cast<const fnptr*>(method->GetNativeMethod());
    377       ScopedLocalRef<jobject> rcvr(soa.Env(),
    378                                    soa.AddLocalReference<jobject>(receiver));
    379       ScopedThreadStateChange tsc(self, kNative);
    380       fn(soa.Env(), rcvr.get());
    381     } else if (shorty == "LL") {
    382       typedef jobject (fnptr)(JNIEnv*, jobject, jobject);
    383       const fnptr* fn = reinterpret_cast<const fnptr*>(method->GetNativeMethod());
    384       ScopedLocalRef<jobject> rcvr(soa.Env(),
    385                                    soa.AddLocalReference<jobject>(receiver));
    386       ScopedLocalRef<jobject> arg0(soa.Env(),
    387                                    soa.AddLocalReference<jobject>(reinterpret_cast<Object*>(args[0])));
    388       jobject jresult;
    389       {
    390         ScopedThreadStateChange tsc(self, kNative);
    391         jresult = fn(soa.Env(), rcvr.get(), arg0.get());
    392       }
    393       result->SetL(soa.Decode<Object*>(jresult));
    394       ScopedThreadStateChange tsc(self, kNative);
    395     } else if (shorty == "III") {
    396       typedef jint (fnptr)(JNIEnv*, jobject, jint, jint);
    397       const fnptr* fn = reinterpret_cast<const fnptr*>(method->GetNativeMethod());
    398       ScopedLocalRef<jobject> rcvr(soa.Env(),
    399                                    soa.AddLocalReference<jobject>(receiver));
    400       ScopedThreadStateChange tsc(self, kNative);
    401       result->SetI(fn(soa.Env(), rcvr.get(), args[0], args[1]));
    402     } else {
    403       LOG(FATAL) << "Do something with native method: " << PrettyMethod(method)
    404           << " shorty: " << shorty;
    405     }
    406   }
    407 }
    408 
    409 static void DoMonitorEnter(Thread* self, Object* ref) NO_THREAD_SAFETY_ANALYSIS {
    410   ref->MonitorEnter(self);
    411 }
    412 
    413 static void DoMonitorExit(Thread* self, Object* ref) NO_THREAD_SAFETY_ANALYSIS {
    414   ref->MonitorExit(self);
    415 }
    416 
    417 // TODO: should be SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) which is failing due to template
    418 // specialization.
    419 template<InvokeType type, bool is_range, bool do_access_check>
    420 static bool DoInvoke(Thread* self, ShadowFrame& shadow_frame,
    421                      const Instruction* inst, JValue* result) NO_THREAD_SAFETY_ANALYSIS;
    422 
    423 template<InvokeType type, bool is_range, bool do_access_check>
    424 static bool DoInvoke(Thread* self, ShadowFrame& shadow_frame,
    425                      const Instruction* inst, JValue* result) {
    426   bool do_assignability_check = do_access_check;
    427   uint32_t method_idx = (is_range) ? inst->VRegB_3rc() : inst->VRegB_35c();
    428   uint32_t vregC = (is_range) ? inst->VRegC_3rc() : inst->VRegC_35c();
    429   Object* receiver = (type == kStatic) ? NULL : shadow_frame.GetVRegReference(vregC);
    430   ArtMethod* method = FindMethodFromCode(method_idx, receiver, shadow_frame.GetMethod(), self,
    431                                          do_access_check, type);
    432   if (UNLIKELY(method == NULL)) {
    433     CHECK(self->IsExceptionPending());
    434     result->SetJ(0);
    435     return false;
    436   } else if (UNLIKELY(method->IsAbstract())) {
    437     ThrowAbstractMethodError(method);
    438     result->SetJ(0);
    439     return false;
    440   }
    441 
    442   MethodHelper mh(method);
    443   const DexFile::CodeItem* code_item = mh.GetCodeItem();
    444   uint16_t num_regs;
    445   uint16_t num_ins;
    446   if (LIKELY(code_item != NULL)) {
    447     num_regs = code_item->registers_size_;
    448     num_ins = code_item->ins_size_;
    449   } else {
    450     DCHECK(method->IsNative() || method->IsProxyMethod());
    451     num_regs = num_ins = ArtMethod::NumArgRegisters(mh.GetShorty());
    452     if (!method->IsStatic()) {
    453       num_regs++;
    454       num_ins++;
    455     }
    456   }
    457 
    458   void* memory = alloca(ShadowFrame::ComputeSize(num_regs));
    459   ShadowFrame* new_shadow_frame(ShadowFrame::Create(num_regs, &shadow_frame, method, 0, memory));
    460   size_t cur_reg = num_regs - num_ins;
    461   if (receiver != NULL) {
    462     new_shadow_frame->SetVRegReference(cur_reg, receiver);
    463     ++cur_reg;
    464   }
    465 
    466   const DexFile::TypeList* params;
    467   if (do_assignability_check) {
    468     params = mh.GetParameterTypeList();
    469   }
    470   size_t arg_offset = (receiver == NULL) ? 0 : 1;
    471   const char* shorty = mh.GetShorty();
    472   uint32_t arg[5];
    473   if (!is_range) {
    474     inst->GetArgs(arg);
    475   }
    476   for (size_t shorty_pos = 0; cur_reg < num_regs; ++shorty_pos, cur_reg++, arg_offset++) {
    477     DCHECK_LT(shorty_pos + 1, mh.GetShortyLength());
    478     size_t arg_pos = is_range ? vregC + arg_offset : arg[arg_offset];
    479     switch (shorty[shorty_pos + 1]) {
    480       case 'L': {
    481         Object* o = shadow_frame.GetVRegReference(arg_pos);
    482         if (do_assignability_check && o != NULL) {
    483           Class* arg_type = mh.GetClassFromTypeIdx(params->GetTypeItem(shorty_pos).type_idx_);
    484           if (arg_type == NULL) {
    485             CHECK(self->IsExceptionPending());
    486             return false;
    487           }
    488           if (!o->VerifierInstanceOf(arg_type)) {
    489             // This should never happen.
    490             self->ThrowNewExceptionF(self->GetCurrentLocationForThrow(),
    491                                      "Ljava/lang/VirtualMachineError;",
    492                                      "Invoking %s with bad arg %d, type '%s' not instance of '%s'",
    493                                      mh.GetName(), shorty_pos,
    494                                      ClassHelper(o->GetClass()).GetDescriptor(),
    495                                      ClassHelper(arg_type).GetDescriptor());
    496             return false;
    497           }
    498         }
    499         new_shadow_frame->SetVRegReference(cur_reg, o);
    500         break;
    501       }
    502       case 'J': case 'D': {
    503         uint64_t wide_value = (static_cast<uint64_t>(shadow_frame.GetVReg(arg_pos + 1)) << 32) |
    504                               static_cast<uint32_t>(shadow_frame.GetVReg(arg_pos));
    505         new_shadow_frame->SetVRegLong(cur_reg, wide_value);
    506         cur_reg++;
    507         arg_offset++;
    508         break;
    509       }
    510       default:
    511         new_shadow_frame->SetVReg(cur_reg, shadow_frame.GetVReg(arg_pos));
    512         break;
    513     }
    514   }
    515 
    516   if (LIKELY(Runtime::Current()->IsStarted())) {
    517     (method->GetEntryPointFromInterpreter())(self, mh, code_item, new_shadow_frame, result);
    518   } else {
    519     UnstartedRuntimeInvoke(self, mh, code_item, new_shadow_frame, result, num_regs - num_ins);
    520   }
    521   return !self->IsExceptionPending();
    522 }
    523 
    524 // TODO: should be SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) which is failing due to template
    525 // specialization.
    526 template<bool is_range>
    527 static bool DoInvokeVirtualQuick(Thread* self, ShadowFrame& shadow_frame,
    528                                  const Instruction* inst, JValue* result)
    529     NO_THREAD_SAFETY_ANALYSIS;
    530 
    531 template<bool is_range>
    532 static bool DoInvokeVirtualQuick(Thread* self, ShadowFrame& shadow_frame,
    533                                  const Instruction* inst, JValue* result) {
    534   uint32_t vregC = (is_range) ? inst->VRegC_3rc() : inst->VRegC_35c();
    535   Object* receiver = shadow_frame.GetVRegReference(vregC);
    536   if (UNLIKELY(receiver == NULL)) {
    537     // We lost the reference to the method index so we cannot get a more
    538     // precised exception message.
    539     ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
    540     return false;
    541   }
    542   uint32_t vtable_idx = (is_range) ? inst->VRegB_3rc() : inst->VRegB_35c();
    543   // TODO: use ObjectArray<T>::GetWithoutChecks ?
    544   ArtMethod* method = receiver->GetClass()->GetVTable()->Get(vtable_idx);
    545   if (UNLIKELY(method == NULL)) {
    546     CHECK(self->IsExceptionPending());
    547     result->SetJ(0);
    548     return false;
    549   } else if (UNLIKELY(method->IsAbstract())) {
    550     ThrowAbstractMethodError(method);
    551     result->SetJ(0);
    552     return false;
    553   }
    554 
    555   MethodHelper mh(method);
    556   const DexFile::CodeItem* code_item = mh.GetCodeItem();
    557   uint16_t num_regs;
    558   uint16_t num_ins;
    559   if (code_item != NULL) {
    560     num_regs = code_item->registers_size_;
    561     num_ins = code_item->ins_size_;
    562   } else {
    563     DCHECK(method->IsNative() || method->IsProxyMethod());
    564     num_regs = num_ins = ArtMethod::NumArgRegisters(mh.GetShorty());
    565     if (!method->IsStatic()) {
    566       num_regs++;
    567       num_ins++;
    568     }
    569   }
    570 
    571   void* memory = alloca(ShadowFrame::ComputeSize(num_regs));
    572   ShadowFrame* new_shadow_frame(ShadowFrame::Create(num_regs, &shadow_frame,
    573                                                     method, 0, memory));
    574   size_t cur_reg = num_regs - num_ins;
    575   if (receiver != NULL) {
    576     new_shadow_frame->SetVRegReference(cur_reg, receiver);
    577     ++cur_reg;
    578   }
    579 
    580   size_t arg_offset = (receiver == NULL) ? 0 : 1;
    581   const char* shorty = mh.GetShorty();
    582   uint32_t arg[5];
    583   if (!is_range) {
    584     inst->GetArgs(arg);
    585   }
    586   for (size_t shorty_pos = 0; cur_reg < num_regs; ++shorty_pos, cur_reg++, arg_offset++) {
    587     DCHECK_LT(shorty_pos + 1, mh.GetShortyLength());
    588     size_t arg_pos = is_range ? vregC + arg_offset : arg[arg_offset];
    589     switch (shorty[shorty_pos + 1]) {
    590       case 'L': {
    591         Object* o = shadow_frame.GetVRegReference(arg_pos);
    592         new_shadow_frame->SetVRegReference(cur_reg, o);
    593         break;
    594       }
    595       case 'J': case 'D': {
    596         uint64_t wide_value = (static_cast<uint64_t>(shadow_frame.GetVReg(arg_pos + 1)) << 32) |
    597                               static_cast<uint32_t>(shadow_frame.GetVReg(arg_pos));
    598         new_shadow_frame->SetVRegLong(cur_reg, wide_value);
    599         cur_reg++;
    600         arg_offset++;
    601         break;
    602       }
    603       default:
    604         new_shadow_frame->SetVReg(cur_reg, shadow_frame.GetVReg(arg_pos));
    605         break;
    606     }
    607   }
    608 
    609   if (LIKELY(Runtime::Current()->IsStarted())) {
    610     (method->GetEntryPointFromInterpreter())(self, mh, code_item, new_shadow_frame, result);
    611   } else {
    612     UnstartedRuntimeInvoke(self, mh, code_item, new_shadow_frame, result, num_regs - num_ins);
    613   }
    614   return !self->IsExceptionPending();
    615 }
    616 
    617 // We use template functions to optimize compiler inlining process. Otherwise,
    618 // some parts of the code (like a switch statement) which depend on a constant
    619 // parameter would not be inlined while it should be. These constant parameters
    620 // are now part of the template arguments.
    621 // Note these template functions are static and inlined so they should not be
    622 // part of the final object file.
    623 // TODO: should be SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) which is failing due to template
    624 // specialization.
    625 template<FindFieldType find_type, Primitive::Type field_type, bool do_access_check>
    626 static bool DoFieldGet(Thread* self, ShadowFrame& shadow_frame,
    627                        const Instruction* inst)
    628     NO_THREAD_SAFETY_ANALYSIS ALWAYS_INLINE;
    629 
    630 template<FindFieldType find_type, Primitive::Type field_type, bool do_access_check>
    631 static inline bool DoFieldGet(Thread* self, ShadowFrame& shadow_frame,
    632                               const Instruction* inst) {
    633   bool is_static = (find_type == StaticObjectRead) || (find_type == StaticPrimitiveRead);
    634   uint32_t field_idx = is_static ? inst->VRegB_21c() : inst->VRegC_22c();
    635   ArtField* f = FindFieldFromCode(field_idx, shadow_frame.GetMethod(), self,
    636                                   find_type, Primitive::FieldSize(field_type),
    637                                   do_access_check);
    638   if (UNLIKELY(f == NULL)) {
    639     CHECK(self->IsExceptionPending());
    640     return false;
    641   }
    642   Object* obj;
    643   if (is_static) {
    644     obj = f->GetDeclaringClass();
    645   } else {
    646     obj = shadow_frame.GetVRegReference(inst->VRegB_22c());
    647     if (UNLIKELY(obj == NULL)) {
    648       ThrowNullPointerExceptionForFieldAccess(shadow_frame.GetCurrentLocationForThrow(), f, true);
    649       return false;
    650     }
    651   }
    652   uint32_t vregA = is_static ? inst->VRegA_21c() : inst->VRegA_22c();
    653   switch (field_type) {
    654     case Primitive::kPrimBoolean:
    655       shadow_frame.SetVReg(vregA, f->GetBoolean(obj));
    656       break;
    657     case Primitive::kPrimByte:
    658       shadow_frame.SetVReg(vregA, f->GetByte(obj));
    659       break;
    660     case Primitive::kPrimChar:
    661       shadow_frame.SetVReg(vregA, f->GetChar(obj));
    662       break;
    663     case Primitive::kPrimShort:
    664       shadow_frame.SetVReg(vregA, f->GetShort(obj));
    665       break;
    666     case Primitive::kPrimInt:
    667       shadow_frame.SetVReg(vregA, f->GetInt(obj));
    668       break;
    669     case Primitive::kPrimLong:
    670       shadow_frame.SetVRegLong(vregA, f->GetLong(obj));
    671       break;
    672     case Primitive::kPrimNot:
    673       shadow_frame.SetVRegReference(vregA, f->GetObject(obj));
    674       break;
    675     default:
    676       LOG(FATAL) << "Unreachable: " << field_type;
    677   }
    678   return true;
    679 }
    680 
    681 // TODO: should be SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) which is failing due to template
    682 // specialization.
    683 template<Primitive::Type field_type>
    684 static bool DoIGetQuick(Thread* self, ShadowFrame& shadow_frame,
    685                        const Instruction* inst)
    686     NO_THREAD_SAFETY_ANALYSIS ALWAYS_INLINE;
    687 
    688 template<Primitive::Type field_type>
    689 static inline bool DoIGetQuick(Thread* self, ShadowFrame& shadow_frame,
    690                                const Instruction* inst) {
    691   Object* obj = shadow_frame.GetVRegReference(inst->VRegB_22c());
    692   if (UNLIKELY(obj == NULL)) {
    693     // We lost the reference to the field index so we cannot get a more
    694     // precised exception message.
    695     ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
    696     return false;
    697   }
    698   MemberOffset field_offset(inst->VRegC_22c());
    699   const bool is_volatile = false;  // iget-x-quick only on non volatile fields.
    700   const uint32_t vregA = inst->VRegA_22c();
    701   switch (field_type) {
    702     case Primitive::kPrimInt:
    703       shadow_frame.SetVReg(vregA, static_cast<int32_t>(obj->GetField32(field_offset, is_volatile)));
    704       break;
    705     case Primitive::kPrimLong:
    706       shadow_frame.SetVRegLong(vregA, static_cast<int64_t>(obj->GetField64(field_offset, is_volatile)));
    707       break;
    708     case Primitive::kPrimNot:
    709       shadow_frame.SetVRegReference(vregA, obj->GetFieldObject<mirror::Object*>(field_offset, is_volatile));
    710       break;
    711     default:
    712       LOG(FATAL) << "Unreachable: " << field_type;
    713   }
    714   return true;
    715 }
    716 
    717 // TODO: should be SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) which is failing due to template
    718 // specialization.
    719 template<FindFieldType find_type, Primitive::Type field_type, bool do_access_check>
    720 static bool DoFieldPut(Thread* self, const ShadowFrame& shadow_frame,
    721                        const Instruction* inst)
    722     NO_THREAD_SAFETY_ANALYSIS ALWAYS_INLINE;
    723 
    724 template<FindFieldType find_type, Primitive::Type field_type, bool do_access_check>
    725 static inline bool DoFieldPut(Thread* self, const ShadowFrame& shadow_frame,
    726                               const Instruction* inst) {
    727   bool do_assignability_check = do_access_check;
    728   bool is_static = (find_type == StaticObjectWrite) || (find_type == StaticPrimitiveWrite);
    729   uint32_t field_idx = is_static ? inst->VRegB_21c() : inst->VRegC_22c();
    730   ArtField* f = FindFieldFromCode(field_idx, shadow_frame.GetMethod(), self,
    731                                   find_type, Primitive::FieldSize(field_type),
    732                                   do_access_check);
    733   if (UNLIKELY(f == NULL)) {
    734     CHECK(self->IsExceptionPending());
    735     return false;
    736   }
    737   Object* obj;
    738   if (is_static) {
    739     obj = f->GetDeclaringClass();
    740   } else {
    741     obj = shadow_frame.GetVRegReference(inst->VRegB_22c());
    742     if (UNLIKELY(obj == NULL)) {
    743       ThrowNullPointerExceptionForFieldAccess(shadow_frame.GetCurrentLocationForThrow(),
    744                                               f, false);
    745       return false;
    746     }
    747   }
    748   uint32_t vregA = is_static ? inst->VRegA_21c() : inst->VRegA_22c();
    749   switch (field_type) {
    750     case Primitive::kPrimBoolean:
    751       f->SetBoolean(obj, shadow_frame.GetVReg(vregA));
    752       break;
    753     case Primitive::kPrimByte:
    754       f->SetByte(obj, shadow_frame.GetVReg(vregA));
    755       break;
    756     case Primitive::kPrimChar:
    757       f->SetChar(obj, shadow_frame.GetVReg(vregA));
    758       break;
    759     case Primitive::kPrimShort:
    760       f->SetShort(obj, shadow_frame.GetVReg(vregA));
    761       break;
    762     case Primitive::kPrimInt:
    763       f->SetInt(obj, shadow_frame.GetVReg(vregA));
    764       break;
    765     case Primitive::kPrimLong:
    766       f->SetLong(obj, shadow_frame.GetVRegLong(vregA));
    767       break;
    768     case Primitive::kPrimNot: {
    769       Object* reg = shadow_frame.GetVRegReference(vregA);
    770       if (do_assignability_check && reg != NULL) {
    771         Class* field_class = FieldHelper(f).GetType();
    772         if (!reg->VerifierInstanceOf(field_class)) {
    773           // This should never happen.
    774           self->ThrowNewExceptionF(self->GetCurrentLocationForThrow(),
    775                                    "Ljava/lang/VirtualMachineError;",
    776                                    "Put '%s' that is not instance of field '%s' in '%s'",
    777                                    ClassHelper(reg->GetClass()).GetDescriptor(),
    778                                    ClassHelper(field_class).GetDescriptor(),
    779                                    ClassHelper(f->GetDeclaringClass()).GetDescriptor());
    780           return false;
    781         }
    782       }
    783       f->SetObj(obj, reg);
    784       break;
    785     }
    786     default:
    787       LOG(FATAL) << "Unreachable: " << field_type;
    788   }
    789   return true;
    790 }
    791 
    792 // TODO: should be SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) which is failing due to template
    793 // specialization.
    794 template<Primitive::Type field_type>
    795 static bool DoIPutQuick(Thread* self, ShadowFrame& shadow_frame,
    796                        const Instruction* inst)
    797     NO_THREAD_SAFETY_ANALYSIS ALWAYS_INLINE;
    798 
    799 template<Primitive::Type field_type>
    800 static inline bool DoIPutQuick(Thread* self, ShadowFrame& shadow_frame,
    801                                const Instruction* inst) {
    802   Object* obj = shadow_frame.GetVRegReference(inst->VRegB_22c());
    803   if (UNLIKELY(obj == NULL)) {
    804     // We lost the reference to the field index so we cannot get a more
    805     // precised exception message.
    806     ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
    807     return false;
    808   }
    809   MemberOffset field_offset(inst->VRegC_22c());
    810   const bool is_volatile = false;  // iput-x-quick only on non volatile fields.
    811   const uint32_t vregA = inst->VRegA_22c();
    812   switch (field_type) {
    813     case Primitive::kPrimInt:
    814       obj->SetField32(field_offset, shadow_frame.GetVReg(vregA), is_volatile);
    815       break;
    816     case Primitive::kPrimLong:
    817       obj->SetField64(field_offset, shadow_frame.GetVRegLong(vregA), is_volatile);
    818       break;
    819     case Primitive::kPrimNot:
    820       obj->SetFieldObject(field_offset, shadow_frame.GetVRegReference(vregA), is_volatile);
    821       break;
    822     default:
    823       LOG(FATAL) << "Unreachable: " << field_type;
    824   }
    825   return true;
    826 }
    827 
    828 static inline String* ResolveString(Thread* self, MethodHelper& mh, uint32_t string_idx)
    829     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
    830   Class* java_lang_string_class = String::GetJavaLangString();
    831   if (UNLIKELY(!java_lang_string_class->IsInitialized())) {
    832     ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
    833     if (UNLIKELY(!class_linker->EnsureInitialized(java_lang_string_class,
    834                                                   true, true))) {
    835       DCHECK(self->IsExceptionPending());
    836       return NULL;
    837     }
    838   }
    839   return mh.ResolveString(string_idx);
    840 }
    841 
    842 static inline bool DoIntDivide(ShadowFrame& shadow_frame, size_t result_reg,
    843                                int32_t dividend, int32_t divisor)
    844     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
    845   if (UNLIKELY(divisor == 0)) {
    846     ThrowArithmeticExceptionDivideByZero();
    847     return false;
    848   }
    849   if (UNLIKELY(dividend == kMinInt && divisor == -1)) {
    850     shadow_frame.SetVReg(result_reg, kMinInt);
    851   } else {
    852     shadow_frame.SetVReg(result_reg, dividend / divisor);
    853   }
    854   return true;
    855 }
    856 
    857 static inline bool DoIntRemainder(ShadowFrame& shadow_frame, size_t result_reg,
    858                                   int32_t dividend, int32_t divisor)
    859     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
    860   if (UNLIKELY(divisor == 0)) {
    861     ThrowArithmeticExceptionDivideByZero();
    862     return false;
    863   }
    864   if (UNLIKELY(dividend == kMinInt && divisor == -1)) {
    865     shadow_frame.SetVReg(result_reg, 0);
    866   } else {
    867     shadow_frame.SetVReg(result_reg, dividend % divisor);
    868   }
    869   return true;
    870 }
    871 
    872 static inline bool DoLongDivide(ShadowFrame& shadow_frame, size_t result_reg,
    873                                 int64_t dividend, int64_t divisor)
    874     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
    875   if (UNLIKELY(divisor == 0)) {
    876     ThrowArithmeticExceptionDivideByZero();
    877     return false;
    878   }
    879   if (UNLIKELY(dividend == kMinLong && divisor == -1)) {
    880     shadow_frame.SetVRegLong(result_reg, kMinLong);
    881   } else {
    882     shadow_frame.SetVRegLong(result_reg, dividend / divisor);
    883   }
    884   return true;
    885 }
    886 
    887 static inline bool DoLongRemainder(ShadowFrame& shadow_frame, size_t result_reg,
    888                                    int64_t dividend, int64_t divisor)
    889     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
    890   if (UNLIKELY(divisor == 0)) {
    891     ThrowArithmeticExceptionDivideByZero();
    892     return false;
    893   }
    894   if (UNLIKELY(dividend == kMinLong && divisor == -1)) {
    895     shadow_frame.SetVRegLong(result_reg, 0);
    896   } else {
    897     shadow_frame.SetVRegLong(result_reg, dividend % divisor);
    898   }
    899   return true;
    900 }
    901 
    902 // TODO: should be SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) which is failing due to template
    903 // specialization.
    904 // Returns true on success, otherwise throws an exception and returns false.
    905 template <bool is_range, bool do_access_check>
    906 static bool DoFilledNewArray(const Instruction* inst, const ShadowFrame& shadow_frame,
    907                              Thread* self, JValue* result)
    908     NO_THREAD_SAFETY_ANALYSIS ALWAYS_INLINE;
    909 
    910 template <bool is_range, bool do_access_check>
    911 static inline bool DoFilledNewArray(const Instruction* inst,
    912                                     const ShadowFrame& shadow_frame,
    913                                     Thread* self, JValue* result) {
    914   DCHECK(inst->Opcode() == Instruction::FILLED_NEW_ARRAY ||
    915          inst->Opcode() == Instruction::FILLED_NEW_ARRAY_RANGE);
    916   const int32_t length = is_range ? inst->VRegA_3rc() : inst->VRegA_35c();
    917   if (!is_range) {
    918     // Checks FILLED_NEW_ARRAY's length does not exceed 5 arguments.
    919     CHECK_LE(length, 5);
    920   }
    921   if (UNLIKELY(length < 0)) {
    922     ThrowNegativeArraySizeException(length);
    923     return false;
    924   }
    925   uint16_t type_idx = is_range ? inst->VRegB_3rc() : inst->VRegB_35c();
    926   Class* arrayClass = ResolveVerifyAndClinit(type_idx, shadow_frame.GetMethod(),
    927                                              self, false, do_access_check);
    928   if (UNLIKELY(arrayClass == NULL)) {
    929     DCHECK(self->IsExceptionPending());
    930     return false;
    931   }
    932   CHECK(arrayClass->IsArrayClass());
    933   Class* componentClass = arrayClass->GetComponentType();
    934   if (UNLIKELY(componentClass->IsPrimitive() && !componentClass->IsPrimitiveInt())) {
    935     if (componentClass->IsPrimitiveLong() || componentClass->IsPrimitiveDouble()) {
    936       ThrowRuntimeException("Bad filled array request for type %s",
    937                             PrettyDescriptor(componentClass).c_str());
    938     } else {
    939       self->ThrowNewExceptionF(shadow_frame.GetCurrentLocationForThrow(),
    940                                "Ljava/lang/InternalError;",
    941                                "Found type %s; filled-new-array not implemented for anything but \'int\'",
    942                                PrettyDescriptor(componentClass).c_str());
    943     }
    944     return false;
    945   }
    946   Object* newArray = Array::Alloc(self, arrayClass, length);
    947   if (UNLIKELY(newArray == NULL)) {
    948     DCHECK(self->IsExceptionPending());
    949     return false;
    950   }
    951   if (is_range) {
    952     uint32_t vregC = inst->VRegC_3rc();
    953     const bool is_primitive_int_component = componentClass->IsPrimitiveInt();
    954     for (int32_t i = 0; i < length; ++i) {
    955       if (is_primitive_int_component) {
    956         newArray->AsIntArray()->Set(i, shadow_frame.GetVReg(vregC + i));
    957       } else {
    958         newArray->AsObjectArray<Object>()->Set(i, shadow_frame.GetVRegReference(vregC + i));
    959       }
    960     }
    961   } else {
    962     uint32_t arg[5];
    963     inst->GetArgs(arg);
    964     const bool is_primitive_int_component = componentClass->IsPrimitiveInt();
    965     for (int32_t i = 0; i < length; ++i) {
    966       if (is_primitive_int_component) {
    967         newArray->AsIntArray()->Set(i, shadow_frame.GetVReg(arg[i]));
    968       } else {
    969         newArray->AsObjectArray<Object>()->Set(i, shadow_frame.GetVRegReference(arg[i]));
    970       }
    971     }
    972   }
    973 
    974   result->SetL(newArray);
    975   return true;
    976 }
    977 
    978 static inline const Instruction* DoSparseSwitch(const Instruction* inst,
    979                                                 const ShadowFrame& shadow_frame)
    980     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
    981   DCHECK(inst->Opcode() == Instruction::SPARSE_SWITCH);
    982   const uint16_t* switch_data = reinterpret_cast<const uint16_t*>(inst) + inst->VRegB_31t();
    983   int32_t test_val = shadow_frame.GetVReg(inst->VRegA_31t());
    984   DCHECK_EQ(switch_data[0], static_cast<uint16_t>(Instruction::kSparseSwitchSignature));
    985   uint16_t size = switch_data[1];
    986   DCHECK_GT(size, 0);
    987   const int32_t* keys = reinterpret_cast<const int32_t*>(&switch_data[2]);
    988   DCHECK(IsAligned<4>(keys));
    989   const int32_t* entries = keys + size;
    990   DCHECK(IsAligned<4>(entries));
    991   int lo = 0;
    992   int hi = size - 1;
    993   while (lo <= hi) {
    994     int mid = (lo + hi) / 2;
    995     int32_t foundVal = keys[mid];
    996     if (test_val < foundVal) {
    997       hi = mid - 1;
    998     } else if (test_val > foundVal) {
    999       lo = mid + 1;
   1000     } else {
   1001       return inst->RelativeAt(entries[mid]);
   1002     }
   1003   }
   1004   return inst->Next_3xx();
   1005 }
   1006 
   1007 static inline const Instruction* FindNextInstructionFollowingException(Thread* self,
   1008                                                                        ShadowFrame& shadow_frame,
   1009                                                                        uint32_t dex_pc,
   1010                                                                        const uint16_t* insns,
   1011                                                                        SirtRef<Object>& this_object_ref,
   1012                                                                        instrumentation::Instrumentation* instrumentation)
   1013     ALWAYS_INLINE;
   1014 
   1015 static inline const Instruction* FindNextInstructionFollowingException(Thread* self,
   1016                                                                        ShadowFrame& shadow_frame,
   1017                                                                        uint32_t dex_pc,
   1018                                                                        const uint16_t* insns,
   1019                                                                        SirtRef<Object>& this_object_ref,
   1020                                                                        instrumentation::Instrumentation* instrumentation)
   1021     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
   1022   self->VerifyStack();
   1023   ThrowLocation throw_location;
   1024   mirror::Throwable* exception = self->GetException(&throw_location);
   1025   bool clear_exception;
   1026   uint32_t found_dex_pc = shadow_frame.GetMethod()->FindCatchBlock(exception->GetClass(), dex_pc,
   1027                                                                    &clear_exception);
   1028   if (found_dex_pc == DexFile::kDexNoIndex) {
   1029     instrumentation->MethodUnwindEvent(self, this_object_ref.get(),
   1030                                        shadow_frame.GetMethod(), dex_pc);
   1031     return NULL;
   1032   } else {
   1033     instrumentation->ExceptionCaughtEvent(self, throw_location,
   1034                                           shadow_frame.GetMethod(),
   1035                                           found_dex_pc, exception);
   1036     if (clear_exception) {
   1037       self->ClearException();
   1038     }
   1039     return Instruction::At(insns + found_dex_pc);
   1040   }
   1041 }
   1042 
   1043 #define HANDLE_PENDING_EXCEPTION() \
   1044   CHECK(self->IsExceptionPending()); \
   1045   inst = FindNextInstructionFollowingException(self, shadow_frame, inst->GetDexPc(insns), insns, \
   1046                                                this_object_ref, instrumentation); \
   1047   if (inst == NULL) { \
   1048     return JValue(); /* Handled in caller. */ \
   1049   }
   1050 
   1051 #define POSSIBLY_HANDLE_PENDING_EXCEPTION(is_exception_pending, next_function) \
   1052   if (UNLIKELY(is_exception_pending)) { \
   1053     HANDLE_PENDING_EXCEPTION(); \
   1054   } else { \
   1055     inst = inst->next_function(); \
   1056   }
   1057 
   1058 static void UnexpectedOpcode(const Instruction* inst, MethodHelper& mh)
   1059   __attribute__((cold, noreturn, noinline));
   1060 
   1061 static void UnexpectedOpcode(const Instruction* inst, MethodHelper& mh)
   1062     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
   1063   LOG(FATAL) << "Unexpected instruction: " << inst->DumpString(&mh.GetDexFile());
   1064   exit(0);  // Unreachable, keep GCC happy.
   1065 }
   1066 
   1067 // Code to run before each dex instruction.
   1068 #define PREAMBLE()
   1069 
   1070 // TODO: should be SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) which is failing due to template
   1071 // specialization.
   1072 template<bool do_access_check>
   1073 static JValue ExecuteImpl(Thread* self, MethodHelper& mh, const DexFile::CodeItem* code_item,
   1074                       ShadowFrame& shadow_frame, JValue result_register)
   1075     NO_THREAD_SAFETY_ANALYSIS __attribute__((hot));
   1076 
   1077 template<bool do_access_check>
   1078 static JValue ExecuteImpl(Thread* self, MethodHelper& mh, const DexFile::CodeItem* code_item,
   1079                       ShadowFrame& shadow_frame, JValue result_register) {
   1080   bool do_assignability_check = do_access_check;
   1081   if (UNLIKELY(!shadow_frame.HasReferenceArray())) {
   1082     LOG(FATAL) << "Invalid shadow frame for interpreter use";
   1083     return JValue();
   1084   }
   1085   self->VerifyStack();
   1086   instrumentation::Instrumentation* const instrumentation = Runtime::Current()->GetInstrumentation();
   1087 
   1088   // As the 'this' object won't change during the execution of current code, we
   1089   // want to cache it in local variables. Nevertheless, in order to let the
   1090   // garbage collector access it, we store it into sirt references.
   1091   SirtRef<Object> this_object_ref(self, shadow_frame.GetThisObject(code_item->ins_size_));
   1092 
   1093   uint32_t dex_pc = shadow_frame.GetDexPC();
   1094   if (LIKELY(dex_pc == 0)) {  // We are entering the method as opposed to deoptimizing..
   1095     if (UNLIKELY(instrumentation->HasMethodEntryListeners())) {
   1096       instrumentation->MethodEnterEvent(self, this_object_ref.get(),
   1097                                         shadow_frame.GetMethod(), 0);
   1098     }
   1099   }
   1100   const uint16_t* const insns = code_item->insns_;
   1101   const Instruction* inst = Instruction::At(insns + dex_pc);
   1102   while (true) {
   1103     dex_pc = inst->GetDexPc(insns);
   1104     shadow_frame.SetDexPC(dex_pc);
   1105     if (UNLIKELY(self->TestAllFlags())) {
   1106       CheckSuspend(self);
   1107     }
   1108     if (UNLIKELY(instrumentation->HasDexPcListeners())) {
   1109       instrumentation->DexPcMovedEvent(self, this_object_ref.get(),
   1110                                        shadow_frame.GetMethod(), dex_pc);
   1111     }
   1112     const bool kTracing = false;
   1113     if (kTracing) {
   1114 #define TRACE_LOG std::cerr
   1115       TRACE_LOG << PrettyMethod(shadow_frame.GetMethod())
   1116                 << StringPrintf("\n0x%x: ", dex_pc)
   1117                 << inst->DumpString(&mh.GetDexFile()) << "\n";
   1118       for (size_t i = 0; i < shadow_frame.NumberOfVRegs(); ++i) {
   1119         uint32_t raw_value = shadow_frame.GetVReg(i);
   1120         Object* ref_value = shadow_frame.GetVRegReference(i);
   1121         TRACE_LOG << StringPrintf(" vreg%d=0x%08X", i, raw_value);
   1122         if (ref_value != NULL) {
   1123           if (ref_value->GetClass()->IsStringClass() &&
   1124               ref_value->AsString()->GetCharArray() != NULL) {
   1125             TRACE_LOG << "/java.lang.String \"" << ref_value->AsString()->ToModifiedUtf8() << "\"";
   1126           } else {
   1127             TRACE_LOG << "/" << PrettyTypeOf(ref_value);
   1128           }
   1129         }
   1130       }
   1131       TRACE_LOG << "\n";
   1132 #undef TRACE_LOG
   1133     }
   1134     switch (inst->Opcode()) {
   1135       case Instruction::NOP:
   1136         PREAMBLE();
   1137         inst = inst->Next_1xx();
   1138         break;
   1139       case Instruction::MOVE:
   1140         PREAMBLE();
   1141         shadow_frame.SetVReg(inst->VRegA_12x(),
   1142                              shadow_frame.GetVReg(inst->VRegB_12x()));
   1143         inst = inst->Next_1xx();
   1144         break;
   1145       case Instruction::MOVE_FROM16:
   1146         PREAMBLE();
   1147         shadow_frame.SetVReg(inst->VRegA_22x(),
   1148                              shadow_frame.GetVReg(inst->VRegB_22x()));
   1149         inst = inst->Next_2xx();
   1150         break;
   1151       case Instruction::MOVE_16:
   1152         PREAMBLE();
   1153         shadow_frame.SetVReg(inst->VRegA_32x(),
   1154                              shadow_frame.GetVReg(inst->VRegB_32x()));
   1155         inst = inst->Next_3xx();
   1156         break;
   1157       case Instruction::MOVE_WIDE:
   1158         PREAMBLE();
   1159         shadow_frame.SetVRegLong(inst->VRegA_12x(),
   1160                                  shadow_frame.GetVRegLong(inst->VRegB_12x()));
   1161         inst = inst->Next_1xx();
   1162         break;
   1163       case Instruction::MOVE_WIDE_FROM16:
   1164         PREAMBLE();
   1165         shadow_frame.SetVRegLong(inst->VRegA_22x(),
   1166                                  shadow_frame.GetVRegLong(inst->VRegB_22x()));
   1167         inst = inst->Next_2xx();
   1168         break;
   1169       case Instruction::MOVE_WIDE_16:
   1170         PREAMBLE();
   1171         shadow_frame.SetVRegLong(inst->VRegA_32x(),
   1172                                  shadow_frame.GetVRegLong(inst->VRegB_32x()));
   1173         inst = inst->Next_3xx();
   1174         break;
   1175       case Instruction::MOVE_OBJECT:
   1176         PREAMBLE();
   1177         shadow_frame.SetVRegReference(inst->VRegA_12x(),
   1178                                       shadow_frame.GetVRegReference(inst->VRegB_12x()));
   1179         inst = inst->Next_1xx();
   1180         break;
   1181       case Instruction::MOVE_OBJECT_FROM16:
   1182         PREAMBLE();
   1183         shadow_frame.SetVRegReference(inst->VRegA_22x(),
   1184                                       shadow_frame.GetVRegReference(inst->VRegB_22x()));
   1185         inst = inst->Next_2xx();
   1186         break;
   1187       case Instruction::MOVE_OBJECT_16:
   1188         PREAMBLE();
   1189         shadow_frame.SetVRegReference(inst->VRegA_32x(),
   1190                                       shadow_frame.GetVRegReference(inst->VRegB_32x()));
   1191         inst = inst->Next_3xx();
   1192         break;
   1193       case Instruction::MOVE_RESULT:
   1194         PREAMBLE();
   1195         shadow_frame.SetVReg(inst->VRegA_11x(), result_register.GetI());
   1196         inst = inst->Next_1xx();
   1197         break;
   1198       case Instruction::MOVE_RESULT_WIDE:
   1199         PREAMBLE();
   1200         shadow_frame.SetVRegLong(inst->VRegA_11x(), result_register.GetJ());
   1201         inst = inst->Next_1xx();
   1202         break;
   1203       case Instruction::MOVE_RESULT_OBJECT:
   1204         PREAMBLE();
   1205         shadow_frame.SetVRegReference(inst->VRegA_11x(), result_register.GetL());
   1206         inst = inst->Next_1xx();
   1207         break;
   1208       case Instruction::MOVE_EXCEPTION: {
   1209         PREAMBLE();
   1210         Throwable* exception = self->GetException(NULL);
   1211         self->ClearException();
   1212         shadow_frame.SetVRegReference(inst->VRegA_11x(), exception);
   1213         inst = inst->Next_1xx();
   1214         break;
   1215       }
   1216       case Instruction::RETURN_VOID: {
   1217         PREAMBLE();
   1218         JValue result;
   1219         if (UNLIKELY(instrumentation->HasMethodExitListeners())) {
   1220           instrumentation->MethodExitEvent(self, this_object_ref.get(),
   1221                                            shadow_frame.GetMethod(), inst->GetDexPc(insns),
   1222                                            result);
   1223         }
   1224         return result;
   1225       }
   1226       case Instruction::RETURN_VOID_BARRIER: {
   1227         PREAMBLE();
   1228         ANDROID_MEMBAR_STORE();
   1229         JValue result;
   1230         if (UNLIKELY(instrumentation->HasMethodExitListeners())) {
   1231           instrumentation->MethodExitEvent(self, this_object_ref.get(),
   1232                                            shadow_frame.GetMethod(), inst->GetDexPc(insns),
   1233                                            result);
   1234         }
   1235         return result;
   1236       }
   1237       case Instruction::RETURN: {
   1238         PREAMBLE();
   1239         JValue result;
   1240         result.SetJ(0);
   1241         result.SetI(shadow_frame.GetVReg(inst->VRegA_11x()));
   1242         if (UNLIKELY(instrumentation->HasMethodExitListeners())) {
   1243           instrumentation->MethodExitEvent(self, this_object_ref.get(),
   1244                                            shadow_frame.GetMethod(), inst->GetDexPc(insns),
   1245                                            result);
   1246         }
   1247         return result;
   1248       }
   1249       case Instruction::RETURN_WIDE: {
   1250         PREAMBLE();
   1251         JValue result;
   1252         result.SetJ(shadow_frame.GetVRegLong(inst->VRegA_11x()));
   1253         if (UNLIKELY(instrumentation->HasMethodExitListeners())) {
   1254           instrumentation->MethodExitEvent(self, this_object_ref.get(),
   1255                                            shadow_frame.GetMethod(), inst->GetDexPc(insns),
   1256                                            result);
   1257         }
   1258         return result;
   1259       }
   1260       case Instruction::RETURN_OBJECT: {
   1261         PREAMBLE();
   1262         JValue result;
   1263         Object* obj_result = shadow_frame.GetVRegReference(inst->VRegA_11x());
   1264         result.SetJ(0);
   1265         result.SetL(obj_result);
   1266         if (do_assignability_check && obj_result != NULL) {
   1267           Class* return_type = MethodHelper(shadow_frame.GetMethod()).GetReturnType();
   1268           if (return_type == NULL) {
   1269             // Return the pending exception.
   1270             HANDLE_PENDING_EXCEPTION();
   1271           }
   1272           if (!obj_result->VerifierInstanceOf(return_type)) {
   1273             // This should never happen.
   1274             self->ThrowNewExceptionF(self->GetCurrentLocationForThrow(),
   1275                                      "Ljava/lang/VirtualMachineError;",
   1276                                      "Returning '%s' that is not instance of return type '%s'",
   1277                                      ClassHelper(obj_result->GetClass()).GetDescriptor(),
   1278                                      ClassHelper(return_type).GetDescriptor());
   1279             HANDLE_PENDING_EXCEPTION();
   1280           }
   1281         }
   1282         if (UNLIKELY(instrumentation->HasMethodExitListeners())) {
   1283           instrumentation->MethodExitEvent(self, this_object_ref.get(),
   1284                                            shadow_frame.GetMethod(), inst->GetDexPc(insns),
   1285                                            result);
   1286         }
   1287         return result;
   1288       }
   1289       case Instruction::CONST_4: {
   1290         PREAMBLE();
   1291         uint4_t dst = inst->VRegA_11n();
   1292         int4_t val = inst->VRegB_11n();
   1293         shadow_frame.SetVReg(dst, val);
   1294         if (val == 0) {
   1295           shadow_frame.SetVRegReference(dst, NULL);
   1296         }
   1297         inst = inst->Next_1xx();
   1298         break;
   1299       }
   1300       case Instruction::CONST_16: {
   1301         PREAMBLE();
   1302         uint8_t dst = inst->VRegA_21s();
   1303         int16_t val = inst->VRegB_21s();
   1304         shadow_frame.SetVReg(dst, val);
   1305         if (val == 0) {
   1306           shadow_frame.SetVRegReference(dst, NULL);
   1307         }
   1308         inst = inst->Next_2xx();
   1309         break;
   1310       }
   1311       case Instruction::CONST: {
   1312         PREAMBLE();
   1313         uint8_t dst = inst->VRegA_31i();
   1314         int32_t val = inst->VRegB_31i();
   1315         shadow_frame.SetVReg(dst, val);
   1316         if (val == 0) {
   1317           shadow_frame.SetVRegReference(dst, NULL);
   1318         }
   1319         inst = inst->Next_3xx();
   1320         break;
   1321       }
   1322       case Instruction::CONST_HIGH16: {
   1323         PREAMBLE();
   1324         uint8_t dst = inst->VRegA_21h();
   1325         int32_t val = static_cast<int32_t>(inst->VRegB_21h() << 16);
   1326         shadow_frame.SetVReg(dst, val);
   1327         if (val == 0) {
   1328           shadow_frame.SetVRegReference(dst, NULL);
   1329         }
   1330         inst = inst->Next_2xx();
   1331         break;
   1332       }
   1333       case Instruction::CONST_WIDE_16:
   1334         PREAMBLE();
   1335         shadow_frame.SetVRegLong(inst->VRegA_21s(), inst->VRegB_21s());
   1336         inst = inst->Next_2xx();
   1337         break;
   1338       case Instruction::CONST_WIDE_32:
   1339         PREAMBLE();
   1340         shadow_frame.SetVRegLong(inst->VRegA_31i(), inst->VRegB_31i());
   1341         inst = inst->Next_3xx();
   1342         break;
   1343       case Instruction::CONST_WIDE:
   1344         PREAMBLE();
   1345         shadow_frame.SetVRegLong(inst->VRegA_51l(), inst->VRegB_51l());
   1346         inst = inst->Next_51l();
   1347         break;
   1348       case Instruction::CONST_WIDE_HIGH16:
   1349         shadow_frame.SetVRegLong(inst->VRegA_21h(),
   1350                                  static_cast<uint64_t>(inst->VRegB_21h()) << 48);
   1351         inst = inst->Next_2xx();
   1352         break;
   1353       case Instruction::CONST_STRING: {
   1354         PREAMBLE();
   1355         String* s = ResolveString(self, mh,  inst->VRegB_21c());
   1356         if (UNLIKELY(s == NULL)) {
   1357           HANDLE_PENDING_EXCEPTION();
   1358         } else {
   1359           shadow_frame.SetVRegReference(inst->VRegA_21c(), s);
   1360           inst = inst->Next_2xx();
   1361         }
   1362         break;
   1363       }
   1364       case Instruction::CONST_STRING_JUMBO: {
   1365         PREAMBLE();
   1366         String* s = ResolveString(self, mh,  inst->VRegB_31c());
   1367         if (UNLIKELY(s == NULL)) {
   1368           HANDLE_PENDING_EXCEPTION();
   1369         } else {
   1370           shadow_frame.SetVRegReference(inst->VRegA_31c(), s);
   1371           inst = inst->Next_3xx();
   1372         }
   1373         break;
   1374       }
   1375       case Instruction::CONST_CLASS: {
   1376         PREAMBLE();
   1377         Class* c = ResolveVerifyAndClinit(inst->VRegB_21c(), shadow_frame.GetMethod(),
   1378                                           self, false, do_access_check);
   1379         if (UNLIKELY(c == NULL)) {
   1380           HANDLE_PENDING_EXCEPTION();
   1381         } else {
   1382           shadow_frame.SetVRegReference(inst->VRegA_21c(), c);
   1383           inst = inst->Next_2xx();
   1384         }
   1385         break;
   1386       }
   1387       case Instruction::MONITOR_ENTER: {
   1388         PREAMBLE();
   1389         Object* obj = shadow_frame.GetVRegReference(inst->VRegA_11x());
   1390         if (UNLIKELY(obj == NULL)) {
   1391           ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
   1392           HANDLE_PENDING_EXCEPTION();
   1393         } else {
   1394           DoMonitorEnter(self, obj);
   1395           POSSIBLY_HANDLE_PENDING_EXCEPTION(self->IsExceptionPending(), Next_1xx);
   1396         }
   1397         break;
   1398       }
   1399       case Instruction::MONITOR_EXIT: {
   1400         PREAMBLE();
   1401         Object* obj = shadow_frame.GetVRegReference(inst->VRegA_11x());
   1402         if (UNLIKELY(obj == NULL)) {
   1403           ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
   1404           HANDLE_PENDING_EXCEPTION();
   1405         } else {
   1406           DoMonitorExit(self, obj);
   1407           POSSIBLY_HANDLE_PENDING_EXCEPTION(self->IsExceptionPending(), Next_1xx);
   1408         }
   1409         break;
   1410       }
   1411       case Instruction::CHECK_CAST: {
   1412         PREAMBLE();
   1413         Class* c = ResolveVerifyAndClinit(inst->VRegB_21c(), shadow_frame.GetMethod(),
   1414                                           self, false, do_access_check);
   1415         if (UNLIKELY(c == NULL)) {
   1416           HANDLE_PENDING_EXCEPTION();
   1417         } else {
   1418           Object* obj = shadow_frame.GetVRegReference(inst->VRegA_21c());
   1419           if (UNLIKELY(obj != NULL && !obj->InstanceOf(c))) {
   1420             ThrowClassCastException(c, obj->GetClass());
   1421             HANDLE_PENDING_EXCEPTION();
   1422           } else {
   1423             inst = inst->Next_2xx();
   1424           }
   1425         }
   1426         break;
   1427       }
   1428       case Instruction::INSTANCE_OF: {
   1429         PREAMBLE();
   1430         Class* c = ResolveVerifyAndClinit(inst->VRegC_22c(), shadow_frame.GetMethod(),
   1431                                           self, false, do_access_check);
   1432         if (UNLIKELY(c == NULL)) {
   1433           HANDLE_PENDING_EXCEPTION();
   1434         } else {
   1435           Object* obj = shadow_frame.GetVRegReference(inst->VRegB_22c());
   1436           shadow_frame.SetVReg(inst->VRegA_22c(), (obj != NULL && obj->InstanceOf(c)) ? 1 : 0);
   1437           inst = inst->Next_2xx();
   1438         }
   1439         break;
   1440       }
   1441       case Instruction::ARRAY_LENGTH:  {
   1442         PREAMBLE();
   1443         Object* array = shadow_frame.GetVRegReference(inst->VRegB_12x());
   1444         if (UNLIKELY(array == NULL)) {
   1445           ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
   1446           HANDLE_PENDING_EXCEPTION();
   1447         } else {
   1448           shadow_frame.SetVReg(inst->VRegA_12x(), array->AsArray()->GetLength());
   1449           inst = inst->Next_1xx();
   1450         }
   1451         break;
   1452       }
   1453       case Instruction::NEW_INSTANCE: {
   1454         PREAMBLE();
   1455         Object* obj = AllocObjectFromCode(inst->VRegB_21c(), shadow_frame.GetMethod(),
   1456                                           self, do_access_check);
   1457         if (UNLIKELY(obj == NULL)) {
   1458           HANDLE_PENDING_EXCEPTION();
   1459         } else {
   1460           shadow_frame.SetVRegReference(inst->VRegA_21c(), obj);
   1461           inst = inst->Next_2xx();
   1462         }
   1463         break;
   1464       }
   1465       case Instruction::NEW_ARRAY: {
   1466         PREAMBLE();
   1467         int32_t length = shadow_frame.GetVReg(inst->VRegB_22c());
   1468         Object* obj = AllocArrayFromCode(inst->VRegC_22c(), shadow_frame.GetMethod(),
   1469                                          length, self, do_access_check);
   1470         if (UNLIKELY(obj == NULL)) {
   1471           HANDLE_PENDING_EXCEPTION();
   1472         } else {
   1473           shadow_frame.SetVRegReference(inst->VRegA_22c(), obj);
   1474           inst = inst->Next_2xx();
   1475         }
   1476         break;
   1477       }
   1478       case Instruction::FILLED_NEW_ARRAY: {
   1479         PREAMBLE();
   1480         bool success = DoFilledNewArray<false, do_access_check>(inst, shadow_frame,
   1481                                                                 self, &result_register);
   1482         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_3xx);
   1483         break;
   1484       }
   1485       case Instruction::FILLED_NEW_ARRAY_RANGE: {
   1486         PREAMBLE();
   1487         bool success = DoFilledNewArray<true, do_access_check>(inst, shadow_frame,
   1488                                                                self, &result_register);
   1489         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_3xx);
   1490         break;
   1491       }
   1492       case Instruction::FILL_ARRAY_DATA: {
   1493         PREAMBLE();
   1494         Object* obj = shadow_frame.GetVRegReference(inst->VRegA_31t());
   1495         if (UNLIKELY(obj == NULL)) {
   1496           ThrowNullPointerException(NULL, "null array in FILL_ARRAY_DATA");
   1497           HANDLE_PENDING_EXCEPTION();
   1498           break;
   1499         }
   1500         Array* array = obj->AsArray();
   1501         DCHECK(array->IsArrayInstance() && !array->IsObjectArray());
   1502         const uint16_t* payload_addr = reinterpret_cast<const uint16_t*>(inst) + inst->VRegB_31t();
   1503         const Instruction::ArrayDataPayload* payload =
   1504             reinterpret_cast<const Instruction::ArrayDataPayload*>(payload_addr);
   1505         if (UNLIKELY(static_cast<int32_t>(payload->element_count) > array->GetLength())) {
   1506           self->ThrowNewExceptionF(shadow_frame.GetCurrentLocationForThrow(),
   1507                                    "Ljava/lang/ArrayIndexOutOfBoundsException;",
   1508                                    "failed FILL_ARRAY_DATA; length=%d, index=%d",
   1509                                    array->GetLength(), payload->element_count);
   1510           HANDLE_PENDING_EXCEPTION();
   1511           break;
   1512         }
   1513         uint32_t size_in_bytes = payload->element_count * payload->element_width;
   1514         memcpy(array->GetRawData(payload->element_width), payload->data, size_in_bytes);
   1515         inst = inst->Next_3xx();
   1516         break;
   1517       }
   1518       case Instruction::THROW: {
   1519         PREAMBLE();
   1520         Object* exception = shadow_frame.GetVRegReference(inst->VRegA_11x());
   1521         if (UNLIKELY(exception == NULL)) {
   1522           ThrowNullPointerException(NULL, "throw with null exception");
   1523         } else if (do_assignability_check && !exception->GetClass()->IsThrowableClass()) {
   1524           // This should never happen.
   1525           self->ThrowNewExceptionF(self->GetCurrentLocationForThrow(),
   1526                                    "Ljava/lang/VirtualMachineError;",
   1527                                    "Throwing '%s' that is not instance of Throwable",
   1528                                    ClassHelper(exception->GetClass()).GetDescriptor());
   1529         } else {
   1530           self->SetException(shadow_frame.GetCurrentLocationForThrow(), exception->AsThrowable());
   1531         }
   1532         HANDLE_PENDING_EXCEPTION();
   1533         break;
   1534       }
   1535       case Instruction::GOTO: {
   1536         PREAMBLE();
   1537         inst = inst->RelativeAt(inst->VRegA_10t());
   1538         break;
   1539       }
   1540       case Instruction::GOTO_16: {
   1541         PREAMBLE();
   1542         inst = inst->RelativeAt(inst->VRegA_20t());
   1543         break;
   1544       }
   1545       case Instruction::GOTO_32: {
   1546         PREAMBLE();
   1547         inst = inst->RelativeAt(inst->VRegA_30t());
   1548         break;
   1549       }
   1550       case Instruction::PACKED_SWITCH: {
   1551         PREAMBLE();
   1552         const uint16_t* switch_data = reinterpret_cast<const uint16_t*>(inst) + inst->VRegB_31t();
   1553         int32_t test_val = shadow_frame.GetVReg(inst->VRegA_31t());
   1554         DCHECK_EQ(switch_data[0], static_cast<uint16_t>(Instruction::kPackedSwitchSignature));
   1555         uint16_t size = switch_data[1];
   1556         DCHECK_GT(size, 0);
   1557         const int32_t* keys = reinterpret_cast<const int32_t*>(&switch_data[2]);
   1558         DCHECK(IsAligned<4>(keys));
   1559         int32_t first_key = keys[0];
   1560         const int32_t* targets = reinterpret_cast<const int32_t*>(&switch_data[4]);
   1561         DCHECK(IsAligned<4>(targets));
   1562         int32_t index = test_val - first_key;
   1563         if (index >= 0 && index < size) {
   1564           inst = inst->RelativeAt(targets[index]);
   1565         } else {
   1566           inst = inst->Next_3xx();
   1567         }
   1568         break;
   1569       }
   1570       case Instruction::SPARSE_SWITCH: {
   1571         PREAMBLE();
   1572         inst = DoSparseSwitch(inst, shadow_frame);
   1573         break;
   1574       }
   1575       case Instruction::CMPL_FLOAT: {
   1576         PREAMBLE();
   1577         float val1 = shadow_frame.GetVRegFloat(inst->VRegB_23x());
   1578         float val2 = shadow_frame.GetVRegFloat(inst->VRegC_23x());
   1579         int32_t result;
   1580         if (val1 > val2) {
   1581           result = 1;
   1582         } else if (val1 == val2) {
   1583           result = 0;
   1584         } else {
   1585           result = -1;
   1586         }
   1587         shadow_frame.SetVReg(inst->VRegA_23x(), result);
   1588         inst = inst->Next_2xx();
   1589         break;
   1590       }
   1591       case Instruction::CMPG_FLOAT: {
   1592         PREAMBLE();
   1593         float val1 = shadow_frame.GetVRegFloat(inst->VRegB_23x());
   1594         float val2 = shadow_frame.GetVRegFloat(inst->VRegC_23x());
   1595         int32_t result;
   1596         if (val1 < val2) {
   1597           result = -1;
   1598         } else if (val1 == val2) {
   1599           result = 0;
   1600         } else {
   1601           result = 1;
   1602         }
   1603         shadow_frame.SetVReg(inst->VRegA_23x(), result);
   1604         inst = inst->Next_2xx();
   1605         break;
   1606       }
   1607       case Instruction::CMPL_DOUBLE: {
   1608         PREAMBLE();
   1609         double val1 = shadow_frame.GetVRegDouble(inst->VRegB_23x());
   1610         double val2 = shadow_frame.GetVRegDouble(inst->VRegC_23x());
   1611         int32_t result;
   1612         if (val1 > val2) {
   1613           result = 1;
   1614         } else if (val1 == val2) {
   1615           result = 0;
   1616         } else {
   1617           result = -1;
   1618         }
   1619         shadow_frame.SetVReg(inst->VRegA_23x(), result);
   1620         inst = inst->Next_2xx();
   1621         break;
   1622       }
   1623 
   1624       case Instruction::CMPG_DOUBLE: {
   1625         PREAMBLE();
   1626         double val1 = shadow_frame.GetVRegDouble(inst->VRegB_23x());
   1627         double val2 = shadow_frame.GetVRegDouble(inst->VRegC_23x());
   1628         int32_t result;
   1629         if (val1 < val2) {
   1630           result = -1;
   1631         } else if (val1 == val2) {
   1632           result = 0;
   1633         } else {
   1634           result = 1;
   1635         }
   1636         shadow_frame.SetVReg(inst->VRegA_23x(), result);
   1637         inst = inst->Next_2xx();
   1638         break;
   1639       }
   1640       case Instruction::CMP_LONG: {
   1641         PREAMBLE();
   1642         int64_t val1 = shadow_frame.GetVRegLong(inst->VRegB_23x());
   1643         int64_t val2 = shadow_frame.GetVRegLong(inst->VRegC_23x());
   1644         int32_t result;
   1645         if (val1 > val2) {
   1646           result = 1;
   1647         } else if (val1 == val2) {
   1648           result = 0;
   1649         } else {
   1650           result = -1;
   1651         }
   1652         shadow_frame.SetVReg(inst->VRegA_23x(), result);
   1653         inst = inst->Next_2xx();
   1654         break;
   1655       }
   1656       case Instruction::IF_EQ: {
   1657         PREAMBLE();
   1658         if (shadow_frame.GetVReg(inst->VRegA_22t()) == shadow_frame.GetVReg(inst->VRegB_22t())) {
   1659           inst = inst->RelativeAt(inst->VRegC_22t());
   1660         } else {
   1661           inst = inst->Next_2xx();
   1662         }
   1663         break;
   1664       }
   1665       case Instruction::IF_NE: {
   1666         PREAMBLE();
   1667         if (shadow_frame.GetVReg(inst->VRegA_22t()) != shadow_frame.GetVReg(inst->VRegB_22t())) {
   1668           inst = inst->RelativeAt(inst->VRegC_22t());
   1669         } else {
   1670           inst = inst->Next_2xx();
   1671         }
   1672         break;
   1673       }
   1674       case Instruction::IF_LT: {
   1675         PREAMBLE();
   1676         if (shadow_frame.GetVReg(inst->VRegA_22t()) < shadow_frame.GetVReg(inst->VRegB_22t())) {
   1677           inst = inst->RelativeAt(inst->VRegC_22t());
   1678         } else {
   1679           inst = inst->Next_2xx();
   1680         }
   1681         break;
   1682       }
   1683       case Instruction::IF_GE: {
   1684         PREAMBLE();
   1685         if (shadow_frame.GetVReg(inst->VRegA_22t()) >= shadow_frame.GetVReg(inst->VRegB_22t())) {
   1686           inst = inst->RelativeAt(inst->VRegC_22t());
   1687         } else {
   1688           inst = inst->Next_2xx();
   1689         }
   1690         break;
   1691       }
   1692       case Instruction::IF_GT: {
   1693         PREAMBLE();
   1694         if (shadow_frame.GetVReg(inst->VRegA_22t()) > shadow_frame.GetVReg(inst->VRegB_22t())) {
   1695           inst = inst->RelativeAt(inst->VRegC_22t());
   1696         } else {
   1697           inst = inst->Next_2xx();
   1698         }
   1699         break;
   1700       }
   1701       case Instruction::IF_LE: {
   1702         PREAMBLE();
   1703         if (shadow_frame.GetVReg(inst->VRegA_22t()) <= shadow_frame.GetVReg(inst->VRegB_22t())) {
   1704           inst = inst->RelativeAt(inst->VRegC_22t());
   1705         } else {
   1706           inst = inst->Next_2xx();
   1707         }
   1708         break;
   1709       }
   1710       case Instruction::IF_EQZ: {
   1711         PREAMBLE();
   1712         if (shadow_frame.GetVReg(inst->VRegA_21t()) == 0) {
   1713           inst = inst->RelativeAt(inst->VRegB_21t());
   1714         } else {
   1715           inst = inst->Next_2xx();
   1716         }
   1717         break;
   1718       }
   1719       case Instruction::IF_NEZ: {
   1720         PREAMBLE();
   1721         if (shadow_frame.GetVReg(inst->VRegA_21t()) != 0) {
   1722           inst = inst->RelativeAt(inst->VRegB_21t());
   1723         } else {
   1724           inst = inst->Next_2xx();
   1725         }
   1726         break;
   1727       }
   1728       case Instruction::IF_LTZ: {
   1729         PREAMBLE();
   1730         if (shadow_frame.GetVReg(inst->VRegA_21t()) < 0) {
   1731           inst = inst->RelativeAt(inst->VRegB_21t());
   1732         } else {
   1733           inst = inst->Next_2xx();
   1734         }
   1735         break;
   1736       }
   1737       case Instruction::IF_GEZ: {
   1738         PREAMBLE();
   1739         if (shadow_frame.GetVReg(inst->VRegA_21t()) >= 0) {
   1740           inst = inst->RelativeAt(inst->VRegB_21t());
   1741         } else {
   1742           inst = inst->Next_2xx();
   1743         }
   1744         break;
   1745       }
   1746       case Instruction::IF_GTZ: {
   1747         PREAMBLE();
   1748         if (shadow_frame.GetVReg(inst->VRegA_21t()) > 0) {
   1749           inst = inst->RelativeAt(inst->VRegB_21t());
   1750         } else {
   1751           inst = inst->Next_2xx();
   1752         }
   1753         break;
   1754       }
   1755       case Instruction::IF_LEZ:  {
   1756         PREAMBLE();
   1757         if (shadow_frame.GetVReg(inst->VRegA_21t()) <= 0) {
   1758           inst = inst->RelativeAt(inst->VRegB_21t());
   1759         } else {
   1760           inst = inst->Next_2xx();
   1761         }
   1762         break;
   1763       }
   1764       case Instruction::AGET_BOOLEAN: {
   1765         PREAMBLE();
   1766         Object* a = shadow_frame.GetVRegReference(inst->VRegB_23x());
   1767         if (UNLIKELY(a == NULL)) {
   1768           ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
   1769           HANDLE_PENDING_EXCEPTION();
   1770           break;
   1771         }
   1772         int32_t index = shadow_frame.GetVReg(inst->VRegC_23x());
   1773         BooleanArray* array = a->AsBooleanArray();
   1774         if (LIKELY(array->IsValidIndex(index))) {
   1775           shadow_frame.SetVReg(inst->VRegA_23x(), array->GetData()[index]);
   1776           inst = inst->Next_2xx();
   1777         } else {
   1778           HANDLE_PENDING_EXCEPTION();
   1779         }
   1780         break;
   1781       }
   1782       case Instruction::AGET_BYTE: {
   1783         PREAMBLE();
   1784         Object* a = shadow_frame.GetVRegReference(inst->VRegB_23x());
   1785         if (UNLIKELY(a == NULL)) {
   1786           ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
   1787           HANDLE_PENDING_EXCEPTION();
   1788           break;
   1789         }
   1790         int32_t index = shadow_frame.GetVReg(inst->VRegC_23x());
   1791         ByteArray* array = a->AsByteArray();
   1792         if (LIKELY(array->IsValidIndex(index))) {
   1793           shadow_frame.SetVReg(inst->VRegA_23x(), array->GetData()[index]);
   1794           inst = inst->Next_2xx();
   1795         } else {
   1796           HANDLE_PENDING_EXCEPTION();
   1797         }
   1798         break;
   1799       }
   1800       case Instruction::AGET_CHAR: {
   1801         PREAMBLE();
   1802         Object* a = shadow_frame.GetVRegReference(inst->VRegB_23x());
   1803         if (UNLIKELY(a == NULL)) {
   1804           ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
   1805           HANDLE_PENDING_EXCEPTION();
   1806           break;
   1807         }
   1808         int32_t index = shadow_frame.GetVReg(inst->VRegC_23x());
   1809         CharArray* array = a->AsCharArray();
   1810         if (LIKELY(array->IsValidIndex(index))) {
   1811           shadow_frame.SetVReg(inst->VRegA_23x(), array->GetData()[index]);
   1812           inst = inst->Next_2xx();
   1813         } else {
   1814           HANDLE_PENDING_EXCEPTION();
   1815         }
   1816         break;
   1817       }
   1818       case Instruction::AGET_SHORT: {
   1819         PREAMBLE();
   1820         Object* a = shadow_frame.GetVRegReference(inst->VRegB_23x());
   1821         if (UNLIKELY(a == NULL)) {
   1822           ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
   1823           HANDLE_PENDING_EXCEPTION();
   1824           break;
   1825         }
   1826         int32_t index = shadow_frame.GetVReg(inst->VRegC_23x());
   1827         ShortArray* array = a->AsShortArray();
   1828         if (LIKELY(array->IsValidIndex(index))) {
   1829           shadow_frame.SetVReg(inst->VRegA_23x(), array->GetData()[index]);
   1830           inst = inst->Next_2xx();
   1831         } else {
   1832           HANDLE_PENDING_EXCEPTION();
   1833         }
   1834         break;
   1835       }
   1836       case Instruction::AGET: {
   1837         PREAMBLE();
   1838         Object* a = shadow_frame.GetVRegReference(inst->VRegB_23x());
   1839         if (UNLIKELY(a == NULL)) {
   1840           ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
   1841           HANDLE_PENDING_EXCEPTION();
   1842           break;
   1843         }
   1844         int32_t index = shadow_frame.GetVReg(inst->VRegC_23x());
   1845         IntArray* array = a->AsIntArray();
   1846         if (LIKELY(array->IsValidIndex(index))) {
   1847           shadow_frame.SetVReg(inst->VRegA_23x(), array->GetData()[index]);
   1848           inst = inst->Next_2xx();
   1849         } else {
   1850           HANDLE_PENDING_EXCEPTION();
   1851         }
   1852         break;
   1853       }
   1854       case Instruction::AGET_WIDE:  {
   1855         PREAMBLE();
   1856         Object* a = shadow_frame.GetVRegReference(inst->VRegB_23x());
   1857         if (UNLIKELY(a == NULL)) {
   1858           ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
   1859           HANDLE_PENDING_EXCEPTION();
   1860           break;
   1861         }
   1862         int32_t index = shadow_frame.GetVReg(inst->VRegC_23x());
   1863         LongArray* array = a->AsLongArray();
   1864         if (LIKELY(array->IsValidIndex(index))) {
   1865           shadow_frame.SetVRegLong(inst->VRegA_23x(), array->GetData()[index]);
   1866           inst = inst->Next_2xx();
   1867         } else {
   1868           HANDLE_PENDING_EXCEPTION();
   1869         }
   1870         break;
   1871       }
   1872       case Instruction::AGET_OBJECT: {
   1873         PREAMBLE();
   1874         Object* a = shadow_frame.GetVRegReference(inst->VRegB_23x());
   1875         if (UNLIKELY(a == NULL)) {
   1876           ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
   1877           HANDLE_PENDING_EXCEPTION();
   1878           break;
   1879         }
   1880         int32_t index = shadow_frame.GetVReg(inst->VRegC_23x());
   1881         ObjectArray<Object>* array = a->AsObjectArray<Object>();
   1882         if (LIKELY(array->IsValidIndex(index))) {
   1883           shadow_frame.SetVRegReference(inst->VRegA_23x(), array->GetWithoutChecks(index));
   1884           inst = inst->Next_2xx();
   1885         } else {
   1886           HANDLE_PENDING_EXCEPTION();
   1887         }
   1888         break;
   1889       }
   1890       case Instruction::APUT_BOOLEAN: {
   1891         PREAMBLE();
   1892         Object* a = shadow_frame.GetVRegReference(inst->VRegB_23x());
   1893         if (UNLIKELY(a == NULL)) {
   1894           ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
   1895           HANDLE_PENDING_EXCEPTION();
   1896           break;
   1897         }
   1898         uint8_t val = shadow_frame.GetVReg(inst->VRegA_23x());
   1899         int32_t index = shadow_frame.GetVReg(inst->VRegC_23x());
   1900         BooleanArray* array = a->AsBooleanArray();
   1901         if (LIKELY(array->IsValidIndex(index))) {
   1902           array->GetData()[index] = val;
   1903           inst = inst->Next_2xx();
   1904         } else {
   1905           HANDLE_PENDING_EXCEPTION();
   1906         }
   1907         break;
   1908       }
   1909       case Instruction::APUT_BYTE: {
   1910         PREAMBLE();
   1911         Object* a = shadow_frame.GetVRegReference(inst->VRegB_23x());
   1912         if (UNLIKELY(a == NULL)) {
   1913           ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
   1914           HANDLE_PENDING_EXCEPTION();
   1915           break;
   1916         }
   1917         int8_t val = shadow_frame.GetVReg(inst->VRegA_23x());
   1918         int32_t index = shadow_frame.GetVReg(inst->VRegC_23x());
   1919         ByteArray* array = a->AsByteArray();
   1920         if (LIKELY(array->IsValidIndex(index))) {
   1921           array->GetData()[index] = val;
   1922           inst = inst->Next_2xx();
   1923         } else {
   1924           HANDLE_PENDING_EXCEPTION();
   1925         }
   1926         break;
   1927       }
   1928       case Instruction::APUT_CHAR: {
   1929         PREAMBLE();
   1930         Object* a = shadow_frame.GetVRegReference(inst->VRegB_23x());
   1931         if (UNLIKELY(a == NULL)) {
   1932           ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
   1933           HANDLE_PENDING_EXCEPTION();
   1934           break;
   1935         }
   1936         uint16_t val = shadow_frame.GetVReg(inst->VRegA_23x());
   1937         int32_t index = shadow_frame.GetVReg(inst->VRegC_23x());
   1938         CharArray* array = a->AsCharArray();
   1939         if (LIKELY(array->IsValidIndex(index))) {
   1940           array->GetData()[index] = val;
   1941           inst = inst->Next_2xx();
   1942         } else {
   1943           HANDLE_PENDING_EXCEPTION();
   1944         }
   1945         break;
   1946       }
   1947       case Instruction::APUT_SHORT: {
   1948         PREAMBLE();
   1949         Object* a = shadow_frame.GetVRegReference(inst->VRegB_23x());
   1950         if (UNLIKELY(a == NULL)) {
   1951           ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
   1952           HANDLE_PENDING_EXCEPTION();
   1953           break;
   1954         }
   1955         int16_t val = shadow_frame.GetVReg(inst->VRegA_23x());
   1956         int32_t index = shadow_frame.GetVReg(inst->VRegC_23x());
   1957         ShortArray* array = a->AsShortArray();
   1958         if (LIKELY(array->IsValidIndex(index))) {
   1959           array->GetData()[index] = val;
   1960           inst = inst->Next_2xx();
   1961         } else {
   1962           HANDLE_PENDING_EXCEPTION();
   1963         }
   1964         break;
   1965       }
   1966       case Instruction::APUT: {
   1967         PREAMBLE();
   1968         Object* a = shadow_frame.GetVRegReference(inst->VRegB_23x());
   1969         if (UNLIKELY(a == NULL)) {
   1970           ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
   1971           HANDLE_PENDING_EXCEPTION();
   1972           break;
   1973         }
   1974         int32_t val = shadow_frame.GetVReg(inst->VRegA_23x());
   1975         int32_t index = shadow_frame.GetVReg(inst->VRegC_23x());
   1976         IntArray* array = a->AsIntArray();
   1977         if (LIKELY(array->IsValidIndex(index))) {
   1978           array->GetData()[index] = val;
   1979           inst = inst->Next_2xx();
   1980         } else {
   1981           HANDLE_PENDING_EXCEPTION();
   1982         }
   1983         break;
   1984       }
   1985       case Instruction::APUT_WIDE: {
   1986         PREAMBLE();
   1987         Object* a = shadow_frame.GetVRegReference(inst->VRegB_23x());
   1988         if (UNLIKELY(a == NULL)) {
   1989           ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
   1990           HANDLE_PENDING_EXCEPTION();
   1991           break;
   1992         }
   1993         int64_t val = shadow_frame.GetVRegLong(inst->VRegA_23x());
   1994         int32_t index = shadow_frame.GetVReg(inst->VRegC_23x());
   1995         LongArray* array = a->AsLongArray();
   1996         if (LIKELY(array->IsValidIndex(index))) {
   1997           array->GetData()[index] = val;
   1998           inst = inst->Next_2xx();
   1999         } else {
   2000           HANDLE_PENDING_EXCEPTION();
   2001         }
   2002         break;
   2003       }
   2004       case Instruction::APUT_OBJECT: {
   2005         PREAMBLE();
   2006         Object* a = shadow_frame.GetVRegReference(inst->VRegB_23x());
   2007         if (UNLIKELY(a == NULL)) {
   2008           ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
   2009           HANDLE_PENDING_EXCEPTION();
   2010           break;
   2011         }
   2012         int32_t index = shadow_frame.GetVReg(inst->VRegC_23x());
   2013         Object* val = shadow_frame.GetVRegReference(inst->VRegA_23x());
   2014         ObjectArray<Object>* array = a->AsObjectArray<Object>();
   2015         if (LIKELY(array->IsValidIndex(index) && array->CheckAssignable(val))) {
   2016           array->SetWithoutChecks(index, val);
   2017           inst = inst->Next_2xx();
   2018         } else {
   2019           HANDLE_PENDING_EXCEPTION();
   2020         }
   2021         break;
   2022       }
   2023       case Instruction::IGET_BOOLEAN: {
   2024         PREAMBLE();
   2025         bool success = DoFieldGet<InstancePrimitiveRead, Primitive::kPrimBoolean, do_access_check>(self, shadow_frame, inst);
   2026         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2027         break;
   2028       }
   2029       case Instruction::IGET_BYTE: {
   2030         PREAMBLE();
   2031         bool success = DoFieldGet<InstancePrimitiveRead, Primitive::kPrimByte, do_access_check>(self, shadow_frame, inst);
   2032         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2033         break;
   2034       }
   2035       case Instruction::IGET_CHAR: {
   2036         PREAMBLE();
   2037         bool success = DoFieldGet<InstancePrimitiveRead, Primitive::kPrimChar, do_access_check>(self, shadow_frame, inst);
   2038         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2039         break;
   2040       }
   2041       case Instruction::IGET_SHORT: {
   2042         PREAMBLE();
   2043         bool success = DoFieldGet<InstancePrimitiveRead, Primitive::kPrimShort, do_access_check>(self, shadow_frame, inst);
   2044         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2045         break;
   2046       }
   2047       case Instruction::IGET: {
   2048         PREAMBLE();
   2049         bool success = DoFieldGet<InstancePrimitiveRead, Primitive::kPrimInt, do_access_check>(self, shadow_frame, inst);
   2050         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2051         break;
   2052       }
   2053       case Instruction::IGET_WIDE: {
   2054         PREAMBLE();
   2055         bool success = DoFieldGet<InstancePrimitiveRead, Primitive::kPrimLong, do_access_check>(self, shadow_frame, inst);
   2056         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2057         break;
   2058       }
   2059       case Instruction::IGET_OBJECT: {
   2060         PREAMBLE();
   2061         bool success = DoFieldGet<InstanceObjectRead, Primitive::kPrimNot, do_access_check>(self, shadow_frame, inst);
   2062         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2063         break;
   2064       }
   2065       case Instruction::IGET_QUICK: {
   2066         PREAMBLE();
   2067         bool success = DoIGetQuick<Primitive::kPrimInt>(self, shadow_frame, inst);
   2068         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2069         break;
   2070       }
   2071       case Instruction::IGET_WIDE_QUICK: {
   2072         PREAMBLE();
   2073         bool success = DoIGetQuick<Primitive::kPrimLong>(self, shadow_frame, inst);
   2074         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2075         break;
   2076       }
   2077       case Instruction::IGET_OBJECT_QUICK: {
   2078         PREAMBLE();
   2079         bool success = DoIGetQuick<Primitive::kPrimNot>(self, shadow_frame, inst);
   2080         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2081         break;
   2082       }
   2083       case Instruction::SGET_BOOLEAN: {
   2084         PREAMBLE();
   2085         bool success = DoFieldGet<StaticPrimitiveRead, Primitive::kPrimBoolean, do_access_check>(self, shadow_frame, inst);
   2086         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2087         break;
   2088       }
   2089       case Instruction::SGET_BYTE: {
   2090         PREAMBLE();
   2091         bool success = DoFieldGet<StaticPrimitiveRead, Primitive::kPrimByte, do_access_check>(self, shadow_frame, inst);
   2092         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2093         break;
   2094       }
   2095       case Instruction::SGET_CHAR: {
   2096         PREAMBLE();
   2097         bool success = DoFieldGet<StaticPrimitiveRead, Primitive::kPrimChar, do_access_check>(self, shadow_frame, inst);
   2098         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2099         break;
   2100       }
   2101       case Instruction::SGET_SHORT: {
   2102         PREAMBLE();
   2103         bool success = DoFieldGet<StaticPrimitiveRead, Primitive::kPrimShort, do_access_check>(self, shadow_frame, inst);
   2104         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2105         break;
   2106       }
   2107       case Instruction::SGET: {
   2108         PREAMBLE();
   2109         bool success = DoFieldGet<StaticPrimitiveRead, Primitive::kPrimInt, do_access_check>(self, shadow_frame, inst);
   2110         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2111         break;
   2112       }
   2113       case Instruction::SGET_WIDE: {
   2114         PREAMBLE();
   2115         bool success = DoFieldGet<StaticPrimitiveRead, Primitive::kPrimLong, do_access_check>(self, shadow_frame, inst);
   2116         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2117         break;
   2118       }
   2119       case Instruction::SGET_OBJECT: {
   2120         PREAMBLE();
   2121         bool success = DoFieldGet<StaticObjectRead, Primitive::kPrimNot, do_access_check>(self, shadow_frame, inst);
   2122         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2123         break;
   2124       }
   2125       case Instruction::IPUT_BOOLEAN: {
   2126         PREAMBLE();
   2127         bool success = DoFieldPut<InstancePrimitiveWrite, Primitive::kPrimBoolean, do_access_check>(self, shadow_frame, inst);
   2128         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2129         break;
   2130       }
   2131       case Instruction::IPUT_BYTE: {
   2132         PREAMBLE();
   2133         bool success = DoFieldPut<InstancePrimitiveWrite, Primitive::kPrimByte, do_access_check>(self, shadow_frame, inst);
   2134         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2135         break;
   2136       }
   2137       case Instruction::IPUT_CHAR: {
   2138         PREAMBLE();
   2139         bool success = DoFieldPut<InstancePrimitiveWrite, Primitive::kPrimChar, do_access_check>(self, shadow_frame, inst);
   2140         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2141         break;
   2142       }
   2143       case Instruction::IPUT_SHORT: {
   2144         PREAMBLE();
   2145         bool success = DoFieldPut<InstancePrimitiveWrite, Primitive::kPrimShort, do_access_check>(self, shadow_frame, inst);
   2146         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2147         break;
   2148       }
   2149       case Instruction::IPUT: {
   2150         PREAMBLE();
   2151         bool success = DoFieldPut<InstancePrimitiveWrite, Primitive::kPrimInt, do_access_check>(self, shadow_frame, inst);
   2152         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2153         break;
   2154       }
   2155       case Instruction::IPUT_WIDE: {
   2156         PREAMBLE();
   2157         bool success = DoFieldPut<InstancePrimitiveWrite, Primitive::kPrimLong, do_access_check>(self, shadow_frame, inst);
   2158         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2159         break;
   2160       }
   2161       case Instruction::IPUT_OBJECT: {
   2162         PREAMBLE();
   2163         bool success = DoFieldPut<InstanceObjectWrite, Primitive::kPrimNot, do_access_check>(self, shadow_frame, inst);
   2164         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2165         break;
   2166       }
   2167       case Instruction::IPUT_QUICK: {
   2168         PREAMBLE();
   2169         bool success = DoIPutQuick<Primitive::kPrimInt>(self, shadow_frame, inst);
   2170         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2171         break;
   2172       }
   2173       case Instruction::IPUT_WIDE_QUICK: {
   2174         PREAMBLE();
   2175         bool success = DoIPutQuick<Primitive::kPrimLong>(self, shadow_frame, inst);
   2176         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2177         break;
   2178       }
   2179       case Instruction::IPUT_OBJECT_QUICK: {
   2180         PREAMBLE();
   2181         bool success = DoIPutQuick<Primitive::kPrimNot>(self, shadow_frame, inst);
   2182         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2183         break;
   2184       }
   2185       case Instruction::SPUT_BOOLEAN: {
   2186         PREAMBLE();
   2187         bool success = DoFieldPut<StaticPrimitiveWrite, Primitive::kPrimBoolean, do_access_check>(self, shadow_frame, inst);
   2188         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2189         break;
   2190       }
   2191       case Instruction::SPUT_BYTE: {
   2192         PREAMBLE();
   2193         bool success = DoFieldPut<StaticPrimitiveWrite, Primitive::kPrimByte, do_access_check>(self, shadow_frame, inst);
   2194         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2195         break;
   2196       }
   2197       case Instruction::SPUT_CHAR: {
   2198         PREAMBLE();
   2199         bool success = DoFieldPut<StaticPrimitiveWrite, Primitive::kPrimChar, do_access_check>(self, shadow_frame, inst);
   2200         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2201         break;
   2202       }
   2203       case Instruction::SPUT_SHORT: {
   2204         PREAMBLE();
   2205         bool success = DoFieldPut<StaticPrimitiveWrite, Primitive::kPrimShort, do_access_check>(self, shadow_frame, inst);
   2206         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2207         break;
   2208       }
   2209       case Instruction::SPUT: {
   2210         PREAMBLE();
   2211         bool success = DoFieldPut<StaticPrimitiveWrite, Primitive::kPrimInt, do_access_check>(self, shadow_frame, inst);
   2212         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2213         break;
   2214       }
   2215       case Instruction::SPUT_WIDE: {
   2216         PREAMBLE();
   2217         bool success = DoFieldPut<StaticPrimitiveWrite, Primitive::kPrimLong, do_access_check>(self, shadow_frame, inst);
   2218         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2219         break;
   2220       }
   2221       case Instruction::SPUT_OBJECT: {
   2222         PREAMBLE();
   2223         bool success = DoFieldPut<StaticObjectWrite, Primitive::kPrimNot, do_access_check>(self, shadow_frame, inst);
   2224         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2225         break;
   2226       }
   2227       case Instruction::INVOKE_VIRTUAL: {
   2228         PREAMBLE();
   2229         bool success = DoInvoke<kVirtual, false, do_access_check>(self, shadow_frame, inst, &result_register);
   2230         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_3xx);
   2231         break;
   2232       }
   2233       case Instruction::INVOKE_VIRTUAL_RANGE: {
   2234         PREAMBLE();
   2235         bool success = DoInvoke<kVirtual, true, do_access_check>(self, shadow_frame, inst, &result_register);
   2236         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_3xx);
   2237         break;
   2238       }
   2239       case Instruction::INVOKE_SUPER: {
   2240         PREAMBLE();
   2241         bool success = DoInvoke<kSuper, false, do_access_check>(self, shadow_frame, inst, &result_register);
   2242         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_3xx);
   2243         break;
   2244       }
   2245       case Instruction::INVOKE_SUPER_RANGE: {
   2246         PREAMBLE();
   2247         bool success = DoInvoke<kSuper, true, do_access_check>(self, shadow_frame, inst, &result_register);
   2248         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_3xx);
   2249         break;
   2250       }
   2251       case Instruction::INVOKE_DIRECT: {
   2252         PREAMBLE();
   2253         bool success = DoInvoke<kDirect, false, do_access_check>(self, shadow_frame, inst, &result_register);
   2254         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_3xx);
   2255         break;
   2256       }
   2257       case Instruction::INVOKE_DIRECT_RANGE: {
   2258         PREAMBLE();
   2259         bool success = DoInvoke<kDirect, true, do_access_check>(self, shadow_frame, inst, &result_register);
   2260         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_3xx);
   2261         break;
   2262       }
   2263       case Instruction::INVOKE_INTERFACE: {
   2264         PREAMBLE();
   2265         bool success = DoInvoke<kInterface, false, do_access_check>(self, shadow_frame, inst, &result_register);
   2266         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_3xx);
   2267         break;
   2268       }
   2269       case Instruction::INVOKE_INTERFACE_RANGE: {
   2270         PREAMBLE();
   2271         bool success = DoInvoke<kInterface, true, do_access_check>(self, shadow_frame, inst, &result_register);
   2272         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_3xx);
   2273         break;
   2274       }
   2275       case Instruction::INVOKE_STATIC: {
   2276         PREAMBLE();
   2277         bool success = DoInvoke<kStatic, false, do_access_check>(self, shadow_frame, inst, &result_register);
   2278         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_3xx);
   2279         break;
   2280       }
   2281       case Instruction::INVOKE_STATIC_RANGE: {
   2282         PREAMBLE();
   2283         bool success = DoInvoke<kStatic, true, do_access_check>(self, shadow_frame, inst, &result_register);
   2284         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_3xx);
   2285         break;
   2286       }
   2287       case Instruction::INVOKE_VIRTUAL_QUICK: {
   2288         PREAMBLE();
   2289         bool success = DoInvokeVirtualQuick<false>(self, shadow_frame, inst, &result_register);
   2290         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_3xx);
   2291         break;
   2292       }
   2293       case Instruction::INVOKE_VIRTUAL_RANGE_QUICK: {
   2294         PREAMBLE();
   2295         bool success = DoInvokeVirtualQuick<true>(self, shadow_frame, inst, &result_register);
   2296         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_3xx);
   2297         break;
   2298       }
   2299       case Instruction::NEG_INT:
   2300         PREAMBLE();
   2301         shadow_frame.SetVReg(inst->VRegA_12x(), -shadow_frame.GetVReg(inst->VRegB_12x()));
   2302         inst = inst->Next_1xx();
   2303         break;
   2304       case Instruction::NOT_INT:
   2305         PREAMBLE();
   2306         shadow_frame.SetVReg(inst->VRegA_12x(), ~shadow_frame.GetVReg(inst->VRegB_12x()));
   2307         inst = inst->Next_1xx();
   2308         break;
   2309       case Instruction::NEG_LONG:
   2310         PREAMBLE();
   2311         shadow_frame.SetVRegLong(inst->VRegA_12x(), -shadow_frame.GetVRegLong(inst->VRegB_12x()));
   2312         inst = inst->Next_1xx();
   2313         break;
   2314       case Instruction::NOT_LONG:
   2315         PREAMBLE();
   2316         shadow_frame.SetVRegLong(inst->VRegA_12x(), ~shadow_frame.GetVRegLong(inst->VRegB_12x()));
   2317         inst = inst->Next_1xx();
   2318         break;
   2319       case Instruction::NEG_FLOAT:
   2320         PREAMBLE();
   2321         shadow_frame.SetVRegFloat(inst->VRegA_12x(), -shadow_frame.GetVRegFloat(inst->VRegB_12x()));
   2322         inst = inst->Next_1xx();
   2323         break;
   2324       case Instruction::NEG_DOUBLE:
   2325         PREAMBLE();
   2326         shadow_frame.SetVRegDouble(inst->VRegA_12x(), -shadow_frame.GetVRegDouble(inst->VRegB_12x()));
   2327         inst = inst->Next_1xx();
   2328         break;
   2329       case Instruction::INT_TO_LONG:
   2330         PREAMBLE();
   2331         shadow_frame.SetVRegLong(inst->VRegA_12x(), shadow_frame.GetVReg(inst->VRegB_12x()));
   2332         inst = inst->Next_1xx();
   2333         break;
   2334       case Instruction::INT_TO_FLOAT:
   2335         PREAMBLE();
   2336         shadow_frame.SetVRegFloat(inst->VRegA_12x(), shadow_frame.GetVReg(inst->VRegB_12x()));
   2337         inst = inst->Next_1xx();
   2338         break;
   2339       case Instruction::INT_TO_DOUBLE:
   2340         PREAMBLE();
   2341         shadow_frame.SetVRegDouble(inst->VRegA_12x(), shadow_frame.GetVReg(inst->VRegB_12x()));
   2342         inst = inst->Next_1xx();
   2343         break;
   2344       case Instruction::LONG_TO_INT:
   2345         PREAMBLE();
   2346         shadow_frame.SetVReg(inst->VRegA_12x(), shadow_frame.GetVRegLong(inst->VRegB_12x()));
   2347         inst = inst->Next_1xx();
   2348         break;
   2349       case Instruction::LONG_TO_FLOAT:
   2350         PREAMBLE();
   2351         shadow_frame.SetVRegFloat(inst->VRegA_12x(), shadow_frame.GetVRegLong(inst->VRegB_12x()));
   2352         inst = inst->Next_1xx();
   2353         break;
   2354       case Instruction::LONG_TO_DOUBLE:
   2355         PREAMBLE();
   2356         shadow_frame.SetVRegDouble(inst->VRegA_12x(), shadow_frame.GetVRegLong(inst->VRegB_12x()));
   2357         inst = inst->Next_1xx();
   2358         break;
   2359       case Instruction::FLOAT_TO_INT: {
   2360         PREAMBLE();
   2361         float val = shadow_frame.GetVRegFloat(inst->VRegB_12x());
   2362         int32_t result;
   2363         if (val != val) {
   2364           result = 0;
   2365         } else if (val > static_cast<float>(kMaxInt)) {
   2366           result = kMaxInt;
   2367         } else if (val < static_cast<float>(kMinInt)) {
   2368           result = kMinInt;
   2369         } else {
   2370           result = val;
   2371         }
   2372         shadow_frame.SetVReg(inst->VRegA_12x(), result);
   2373         inst = inst->Next_1xx();
   2374         break;
   2375       }
   2376       case Instruction::FLOAT_TO_LONG: {
   2377         PREAMBLE();
   2378         float val = shadow_frame.GetVRegFloat(inst->VRegB_12x());
   2379         int64_t result;
   2380         if (val != val) {
   2381           result = 0;
   2382         } else if (val > static_cast<float>(kMaxLong)) {
   2383           result = kMaxLong;
   2384         } else if (val < static_cast<float>(kMinLong)) {
   2385           result = kMinLong;
   2386         } else {
   2387           result = val;
   2388         }
   2389         shadow_frame.SetVRegLong(inst->VRegA_12x(), result);
   2390         inst = inst->Next_1xx();
   2391         break;
   2392       }
   2393       case Instruction::FLOAT_TO_DOUBLE:
   2394         PREAMBLE();
   2395         shadow_frame.SetVRegDouble(inst->VRegA_12x(), shadow_frame.GetVRegFloat(inst->VRegB_12x()));
   2396         inst = inst->Next_1xx();
   2397         break;
   2398       case Instruction::DOUBLE_TO_INT: {
   2399         PREAMBLE();
   2400         double val = shadow_frame.GetVRegDouble(inst->VRegB_12x());
   2401         int32_t result;
   2402         if (val != val) {
   2403           result = 0;
   2404         } else if (val > static_cast<double>(kMaxInt)) {
   2405           result = kMaxInt;
   2406         } else if (val < static_cast<double>(kMinInt)) {
   2407           result = kMinInt;
   2408         } else {
   2409           result = val;
   2410         }
   2411         shadow_frame.SetVReg(inst->VRegA_12x(), result);
   2412         inst = inst->Next_1xx();
   2413         break;
   2414       }
   2415       case Instruction::DOUBLE_TO_LONG: {
   2416         PREAMBLE();
   2417         double val = shadow_frame.GetVRegDouble(inst->VRegB_12x());
   2418         int64_t result;
   2419         if (val != val) {
   2420           result = 0;
   2421         } else if (val > static_cast<double>(kMaxLong)) {
   2422           result = kMaxLong;
   2423         } else if (val < static_cast<double>(kMinLong)) {
   2424           result = kMinLong;
   2425         } else {
   2426           result = val;
   2427         }
   2428         shadow_frame.SetVRegLong(inst->VRegA_12x(), result);
   2429         inst = inst->Next_1xx();
   2430         break;
   2431       }
   2432       case Instruction::DOUBLE_TO_FLOAT:
   2433         PREAMBLE();
   2434         shadow_frame.SetVRegFloat(inst->VRegA_12x(), shadow_frame.GetVRegDouble(inst->VRegB_12x()));
   2435         inst = inst->Next_1xx();
   2436         break;
   2437       case Instruction::INT_TO_BYTE:
   2438         PREAMBLE();
   2439         shadow_frame.SetVReg(inst->VRegA_12x(),
   2440                              static_cast<int8_t>(shadow_frame.GetVReg(inst->VRegB_12x())));
   2441         inst = inst->Next_1xx();
   2442         break;
   2443       case Instruction::INT_TO_CHAR:
   2444         PREAMBLE();
   2445         shadow_frame.SetVReg(inst->VRegA_12x(),
   2446                              static_cast<uint16_t>(shadow_frame.GetVReg(inst->VRegB_12x())));
   2447         inst = inst->Next_1xx();
   2448         break;
   2449       case Instruction::INT_TO_SHORT:
   2450         PREAMBLE();
   2451         shadow_frame.SetVReg(inst->VRegA_12x(),
   2452                              static_cast<int16_t>(shadow_frame.GetVReg(inst->VRegB_12x())));
   2453         inst = inst->Next_1xx();
   2454         break;
   2455       case Instruction::ADD_INT:
   2456         PREAMBLE();
   2457         shadow_frame.SetVReg(inst->VRegA_23x(),
   2458                              shadow_frame.GetVReg(inst->VRegB_23x()) +
   2459                              shadow_frame.GetVReg(inst->VRegC_23x()));
   2460         inst = inst->Next_2xx();
   2461         break;
   2462       case Instruction::SUB_INT:
   2463         PREAMBLE();
   2464         shadow_frame.SetVReg(inst->VRegA_23x(),
   2465                              shadow_frame.GetVReg(inst->VRegB_23x()) -
   2466                              shadow_frame.GetVReg(inst->VRegC_23x()));
   2467         inst = inst->Next_2xx();
   2468         break;
   2469       case Instruction::MUL_INT:
   2470         PREAMBLE();
   2471         shadow_frame.SetVReg(inst->VRegA_23x(),
   2472                              shadow_frame.GetVReg(inst->VRegB_23x()) *
   2473                              shadow_frame.GetVReg(inst->VRegC_23x()));
   2474         inst = inst->Next_2xx();
   2475         break;
   2476       case Instruction::DIV_INT: {
   2477         PREAMBLE();
   2478         bool success = DoIntDivide(shadow_frame, inst->VRegA_23x(),
   2479                                    shadow_frame.GetVReg(inst->VRegB_23x()),
   2480                                    shadow_frame.GetVReg(inst->VRegC_23x()));
   2481         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2482         break;
   2483       }
   2484       case Instruction::REM_INT: {
   2485         PREAMBLE();
   2486         bool success = DoIntRemainder(shadow_frame, inst->VRegA_23x(),
   2487                                       shadow_frame.GetVReg(inst->VRegB_23x()),
   2488                                       shadow_frame.GetVReg(inst->VRegC_23x()));
   2489         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2490         break;
   2491       }
   2492       case Instruction::SHL_INT:
   2493         PREAMBLE();
   2494         shadow_frame.SetVReg(inst->VRegA_23x(),
   2495                              shadow_frame.GetVReg(inst->VRegB_23x()) <<
   2496                              (shadow_frame.GetVReg(inst->VRegC_23x()) & 0x1f));
   2497         inst = inst->Next_2xx();
   2498         break;
   2499       case Instruction::SHR_INT:
   2500         PREAMBLE();
   2501         shadow_frame.SetVReg(inst->VRegA_23x(),
   2502                              shadow_frame.GetVReg(inst->VRegB_23x()) >>
   2503                              (shadow_frame.GetVReg(inst->VRegC_23x()) & 0x1f));
   2504         inst = inst->Next_2xx();
   2505         break;
   2506       case Instruction::USHR_INT:
   2507         PREAMBLE();
   2508         shadow_frame.SetVReg(inst->VRegA_23x(),
   2509                              static_cast<uint32_t>(shadow_frame.GetVReg(inst->VRegB_23x())) >>
   2510                              (shadow_frame.GetVReg(inst->VRegC_23x()) & 0x1f));
   2511         inst = inst->Next_2xx();
   2512         break;
   2513       case Instruction::AND_INT:
   2514         PREAMBLE();
   2515         shadow_frame.SetVReg(inst->VRegA_23x(),
   2516                              shadow_frame.GetVReg(inst->VRegB_23x()) &
   2517                              shadow_frame.GetVReg(inst->VRegC_23x()));
   2518         inst = inst->Next_2xx();
   2519         break;
   2520       case Instruction::OR_INT:
   2521         PREAMBLE();
   2522         shadow_frame.SetVReg(inst->VRegA_23x(),
   2523                              shadow_frame.GetVReg(inst->VRegB_23x()) |
   2524                              shadow_frame.GetVReg(inst->VRegC_23x()));
   2525         inst = inst->Next_2xx();
   2526         break;
   2527       case Instruction::XOR_INT:
   2528         PREAMBLE();
   2529         shadow_frame.SetVReg(inst->VRegA_23x(),
   2530                              shadow_frame.GetVReg(inst->VRegB_23x()) ^
   2531                              shadow_frame.GetVReg(inst->VRegC_23x()));
   2532         inst = inst->Next_2xx();
   2533         break;
   2534       case Instruction::ADD_LONG:
   2535         PREAMBLE();
   2536         shadow_frame.SetVRegLong(inst->VRegA_23x(),
   2537                                  shadow_frame.GetVRegLong(inst->VRegB_23x()) +
   2538                                  shadow_frame.GetVRegLong(inst->VRegC_23x()));
   2539         inst = inst->Next_2xx();
   2540         break;
   2541       case Instruction::SUB_LONG:
   2542         PREAMBLE();
   2543         shadow_frame.SetVRegLong(inst->VRegA_23x(),
   2544                                  shadow_frame.GetVRegLong(inst->VRegB_23x()) -
   2545                                  shadow_frame.GetVRegLong(inst->VRegC_23x()));
   2546         inst = inst->Next_2xx();
   2547         break;
   2548       case Instruction::MUL_LONG:
   2549         PREAMBLE();
   2550         shadow_frame.SetVRegLong(inst->VRegA_23x(),
   2551                                  shadow_frame.GetVRegLong(inst->VRegB_23x()) *
   2552                                  shadow_frame.GetVRegLong(inst->VRegC_23x()));
   2553         inst = inst->Next_2xx();
   2554         break;
   2555       case Instruction::DIV_LONG:
   2556         PREAMBLE();
   2557         DoLongDivide(shadow_frame, inst->VRegA_23x(),
   2558                      shadow_frame.GetVRegLong(inst->VRegB_23x()),
   2559                     shadow_frame.GetVRegLong(inst->VRegC_23x()));
   2560         POSSIBLY_HANDLE_PENDING_EXCEPTION(self->IsExceptionPending(), Next_2xx);
   2561         break;
   2562       case Instruction::REM_LONG:
   2563         PREAMBLE();
   2564         DoLongRemainder(shadow_frame, inst->VRegA_23x(),
   2565                         shadow_frame.GetVRegLong(inst->VRegB_23x()),
   2566                         shadow_frame.GetVRegLong(inst->VRegC_23x()));
   2567         POSSIBLY_HANDLE_PENDING_EXCEPTION(self->IsExceptionPending(), Next_2xx);
   2568         break;
   2569       case Instruction::AND_LONG:
   2570         PREAMBLE();
   2571         shadow_frame.SetVRegLong(inst->VRegA_23x(),
   2572                                  shadow_frame.GetVRegLong(inst->VRegB_23x()) &
   2573                                  shadow_frame.GetVRegLong(inst->VRegC_23x()));
   2574         inst = inst->Next_2xx();
   2575         break;
   2576       case Instruction::OR_LONG:
   2577         PREAMBLE();
   2578         shadow_frame.SetVRegLong(inst->VRegA_23x(),
   2579                                  shadow_frame.GetVRegLong(inst->VRegB_23x()) |
   2580                                  shadow_frame.GetVRegLong(inst->VRegC_23x()));
   2581         inst = inst->Next_2xx();
   2582         break;
   2583       case Instruction::XOR_LONG:
   2584         PREAMBLE();
   2585         shadow_frame.SetVRegLong(inst->VRegA_23x(),
   2586                                  shadow_frame.GetVRegLong(inst->VRegB_23x()) ^
   2587                                  shadow_frame.GetVRegLong(inst->VRegC_23x()));
   2588         inst = inst->Next_2xx();
   2589         break;
   2590       case Instruction::SHL_LONG:
   2591         PREAMBLE();
   2592         shadow_frame.SetVRegLong(inst->VRegA_23x(),
   2593                                  shadow_frame.GetVRegLong(inst->VRegB_23x()) <<
   2594                                  (shadow_frame.GetVReg(inst->VRegC_23x()) & 0x3f));
   2595         inst = inst->Next_2xx();
   2596         break;
   2597       case Instruction::SHR_LONG:
   2598         PREAMBLE();
   2599         shadow_frame.SetVRegLong(inst->VRegA_23x(),
   2600                                  shadow_frame.GetVRegLong(inst->VRegB_23x()) >>
   2601                                  (shadow_frame.GetVReg(inst->VRegC_23x()) & 0x3f));
   2602         inst = inst->Next_2xx();
   2603         break;
   2604       case Instruction::USHR_LONG:
   2605         PREAMBLE();
   2606         shadow_frame.SetVRegLong(inst->VRegA_23x(),
   2607                                  static_cast<uint64_t>(shadow_frame.GetVRegLong(inst->VRegB_23x())) >>
   2608                                  (shadow_frame.GetVReg(inst->VRegC_23x()) & 0x3f));
   2609         inst = inst->Next_2xx();
   2610         break;
   2611       case Instruction::ADD_FLOAT:
   2612         PREAMBLE();
   2613         shadow_frame.SetVRegFloat(inst->VRegA_23x(),
   2614                                   shadow_frame.GetVRegFloat(inst->VRegB_23x()) +
   2615                                   shadow_frame.GetVRegFloat(inst->VRegC_23x()));
   2616         inst = inst->Next_2xx();
   2617         break;
   2618       case Instruction::SUB_FLOAT:
   2619         PREAMBLE();
   2620         shadow_frame.SetVRegFloat(inst->VRegA_23x(),
   2621                                   shadow_frame.GetVRegFloat(inst->VRegB_23x()) -
   2622                                   shadow_frame.GetVRegFloat(inst->VRegC_23x()));
   2623         inst = inst->Next_2xx();
   2624         break;
   2625       case Instruction::MUL_FLOAT:
   2626         PREAMBLE();
   2627         shadow_frame.SetVRegFloat(inst->VRegA_23x(),
   2628                                   shadow_frame.GetVRegFloat(inst->VRegB_23x()) *
   2629                                   shadow_frame.GetVRegFloat(inst->VRegC_23x()));
   2630         inst = inst->Next_2xx();
   2631         break;
   2632       case Instruction::DIV_FLOAT:
   2633         PREAMBLE();
   2634         shadow_frame.SetVRegFloat(inst->VRegA_23x(),
   2635                                   shadow_frame.GetVRegFloat(inst->VRegB_23x()) /
   2636                                   shadow_frame.GetVRegFloat(inst->VRegC_23x()));
   2637         inst = inst->Next_2xx();
   2638         break;
   2639       case Instruction::REM_FLOAT:
   2640         PREAMBLE();
   2641         shadow_frame.SetVRegFloat(inst->VRegA_23x(),
   2642                                   fmodf(shadow_frame.GetVRegFloat(inst->VRegB_23x()),
   2643                                         shadow_frame.GetVRegFloat(inst->VRegC_23x())));
   2644         inst = inst->Next_2xx();
   2645         break;
   2646       case Instruction::ADD_DOUBLE:
   2647         PREAMBLE();
   2648         shadow_frame.SetVRegDouble(inst->VRegA_23x(),
   2649                                    shadow_frame.GetVRegDouble(inst->VRegB_23x()) +
   2650                                    shadow_frame.GetVRegDouble(inst->VRegC_23x()));
   2651         inst = inst->Next_2xx();
   2652         break;
   2653       case Instruction::SUB_DOUBLE:
   2654         PREAMBLE();
   2655         shadow_frame.SetVRegDouble(inst->VRegA_23x(),
   2656                                    shadow_frame.GetVRegDouble(inst->VRegB_23x()) -
   2657                                    shadow_frame.GetVRegDouble(inst->VRegC_23x()));
   2658         inst = inst->Next_2xx();
   2659         break;
   2660       case Instruction::MUL_DOUBLE:
   2661         PREAMBLE();
   2662         shadow_frame.SetVRegDouble(inst->VRegA_23x(),
   2663                                    shadow_frame.GetVRegDouble(inst->VRegB_23x()) *
   2664                                    shadow_frame.GetVRegDouble(inst->VRegC_23x()));
   2665         inst = inst->Next_2xx();
   2666         break;
   2667       case Instruction::DIV_DOUBLE:
   2668         PREAMBLE();
   2669         shadow_frame.SetVRegDouble(inst->VRegA_23x(),
   2670                                    shadow_frame.GetVRegDouble(inst->VRegB_23x()) /
   2671                                    shadow_frame.GetVRegDouble(inst->VRegC_23x()));
   2672         inst = inst->Next_2xx();
   2673         break;
   2674       case Instruction::REM_DOUBLE:
   2675         PREAMBLE();
   2676         shadow_frame.SetVRegDouble(inst->VRegA_23x(),
   2677                                    fmod(shadow_frame.GetVRegDouble(inst->VRegB_23x()),
   2678                                         shadow_frame.GetVRegDouble(inst->VRegC_23x())));
   2679         inst = inst->Next_2xx();
   2680         break;
   2681       case Instruction::ADD_INT_2ADDR: {
   2682         PREAMBLE();
   2683         uint4_t vregA = inst->VRegA_12x();
   2684         shadow_frame.SetVReg(vregA,
   2685                              shadow_frame.GetVReg(vregA) +
   2686                              shadow_frame.GetVReg(inst->VRegB_12x()));
   2687         inst = inst->Next_1xx();
   2688         break;
   2689       }
   2690       case Instruction::SUB_INT_2ADDR: {
   2691         PREAMBLE();
   2692         uint4_t vregA = inst->VRegA_12x();
   2693         shadow_frame.SetVReg(vregA,
   2694                              shadow_frame.GetVReg(vregA) -
   2695                              shadow_frame.GetVReg(inst->VRegB_12x()));
   2696         inst = inst->Next_1xx();
   2697         break;
   2698       }
   2699       case Instruction::MUL_INT_2ADDR: {
   2700         PREAMBLE();
   2701         uint4_t vregA = inst->VRegA_12x();
   2702         shadow_frame.SetVReg(vregA,
   2703                              shadow_frame.GetVReg(vregA) *
   2704                              shadow_frame.GetVReg(inst->VRegB_12x()));
   2705         inst = inst->Next_1xx();
   2706         break;
   2707       }
   2708       case Instruction::DIV_INT_2ADDR: {
   2709         PREAMBLE();
   2710         uint4_t vregA = inst->VRegA_12x();
   2711         bool success = DoIntDivide(shadow_frame, vregA, shadow_frame.GetVReg(vregA),
   2712                                    shadow_frame.GetVReg(inst->VRegB_12x()));
   2713         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_1xx);
   2714         break;
   2715       }
   2716       case Instruction::REM_INT_2ADDR: {
   2717         PREAMBLE();
   2718         uint4_t vregA = inst->VRegA_12x();
   2719         bool success = DoIntRemainder(shadow_frame, vregA, shadow_frame.GetVReg(vregA),
   2720                                       shadow_frame.GetVReg(inst->VRegB_12x()));
   2721         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_1xx);
   2722         break;
   2723       }
   2724       case Instruction::SHL_INT_2ADDR: {
   2725         PREAMBLE();
   2726         uint4_t vregA = inst->VRegA_12x();
   2727         shadow_frame.SetVReg(vregA,
   2728                              shadow_frame.GetVReg(vregA) <<
   2729                              (shadow_frame.GetVReg(inst->VRegB_12x()) & 0x1f));
   2730         inst = inst->Next_1xx();
   2731         break;
   2732       }
   2733       case Instruction::SHR_INT_2ADDR: {
   2734         PREAMBLE();
   2735         uint4_t vregA = inst->VRegA_12x();
   2736         shadow_frame.SetVReg(vregA,
   2737                              shadow_frame.GetVReg(vregA) >>
   2738                              (shadow_frame.GetVReg(inst->VRegB_12x()) & 0x1f));
   2739         inst = inst->Next_1xx();
   2740         break;
   2741       }
   2742       case Instruction::USHR_INT_2ADDR: {
   2743         PREAMBLE();
   2744         uint4_t vregA = inst->VRegA_12x();
   2745         shadow_frame.SetVReg(vregA,
   2746                              static_cast<uint32_t>(shadow_frame.GetVReg(vregA)) >>
   2747                              (shadow_frame.GetVReg(inst->VRegB_12x()) & 0x1f));
   2748         inst = inst->Next_1xx();
   2749         break;
   2750       }
   2751       case Instruction::AND_INT_2ADDR: {
   2752         PREAMBLE();
   2753         uint4_t vregA = inst->VRegA_12x();
   2754         shadow_frame.SetVReg(vregA,
   2755                              shadow_frame.GetVReg(vregA) &
   2756                              shadow_frame.GetVReg(inst->VRegB_12x()));
   2757         inst = inst->Next_1xx();
   2758         break;
   2759       }
   2760       case Instruction::OR_INT_2ADDR: {
   2761         PREAMBLE();
   2762         uint4_t vregA = inst->VRegA_12x();
   2763         shadow_frame.SetVReg(vregA,
   2764                              shadow_frame.GetVReg(vregA) |
   2765                              shadow_frame.GetVReg(inst->VRegB_12x()));
   2766         inst = inst->Next_1xx();
   2767         break;
   2768       }
   2769       case Instruction::XOR_INT_2ADDR: {
   2770         PREAMBLE();
   2771         uint4_t vregA = inst->VRegA_12x();
   2772         shadow_frame.SetVReg(vregA,
   2773                              shadow_frame.GetVReg(vregA) ^
   2774                              shadow_frame.GetVReg(inst->VRegB_12x()));
   2775         inst = inst->Next_1xx();
   2776         break;
   2777       }
   2778       case Instruction::ADD_LONG_2ADDR: {
   2779         PREAMBLE();
   2780         uint4_t vregA = inst->VRegA_12x();
   2781         shadow_frame.SetVRegLong(vregA,
   2782                                  shadow_frame.GetVRegLong(vregA) +
   2783                                  shadow_frame.GetVRegLong(inst->VRegB_12x()));
   2784         inst = inst->Next_1xx();
   2785         break;
   2786       }
   2787       case Instruction::SUB_LONG_2ADDR: {
   2788         PREAMBLE();
   2789         uint4_t vregA = inst->VRegA_12x();
   2790         shadow_frame.SetVRegLong(vregA,
   2791                                  shadow_frame.GetVRegLong(vregA) -
   2792                                  shadow_frame.GetVRegLong(inst->VRegB_12x()));
   2793         inst = inst->Next_1xx();
   2794         break;
   2795       }
   2796       case Instruction::MUL_LONG_2ADDR: {
   2797         PREAMBLE();
   2798         uint4_t vregA = inst->VRegA_12x();
   2799         shadow_frame.SetVRegLong(vregA,
   2800                                  shadow_frame.GetVRegLong(vregA) *
   2801                                  shadow_frame.GetVRegLong(inst->VRegB_12x()));
   2802         inst = inst->Next_1xx();
   2803         break;
   2804       }
   2805       case Instruction::DIV_LONG_2ADDR: {
   2806         PREAMBLE();
   2807         uint4_t vregA = inst->VRegA_12x();
   2808         DoLongDivide(shadow_frame, vregA, shadow_frame.GetVRegLong(vregA),
   2809                     shadow_frame.GetVRegLong(inst->VRegB_12x()));
   2810         POSSIBLY_HANDLE_PENDING_EXCEPTION(self->IsExceptionPending(), Next_1xx);
   2811         break;
   2812       }
   2813       case Instruction::REM_LONG_2ADDR: {
   2814         PREAMBLE();
   2815         uint4_t vregA = inst->VRegA_12x();
   2816         DoLongRemainder(shadow_frame, vregA, shadow_frame.GetVRegLong(vregA),
   2817                         shadow_frame.GetVRegLong(inst->VRegB_12x()));
   2818         POSSIBLY_HANDLE_PENDING_EXCEPTION(self->IsExceptionPending(), Next_1xx);
   2819         break;
   2820       }
   2821       case Instruction::AND_LONG_2ADDR: {
   2822         PREAMBLE();
   2823         uint4_t vregA = inst->VRegA_12x();
   2824         shadow_frame.SetVRegLong(vregA,
   2825                                  shadow_frame.GetVRegLong(vregA) &
   2826                                  shadow_frame.GetVRegLong(inst->VRegB_12x()));
   2827         inst = inst->Next_1xx();
   2828         break;
   2829       }
   2830       case Instruction::OR_LONG_2ADDR: {
   2831         PREAMBLE();
   2832         uint4_t vregA = inst->VRegA_12x();
   2833         shadow_frame.SetVRegLong(vregA,
   2834                                  shadow_frame.GetVRegLong(vregA) |
   2835                                  shadow_frame.GetVRegLong(inst->VRegB_12x()));
   2836         inst = inst->Next_1xx();
   2837         break;
   2838       }
   2839       case Instruction::XOR_LONG_2ADDR: {
   2840         PREAMBLE();
   2841         uint4_t vregA = inst->VRegA_12x();
   2842         shadow_frame.SetVRegLong(vregA,
   2843                                  shadow_frame.GetVRegLong(vregA) ^
   2844                                  shadow_frame.GetVRegLong(inst->VRegB_12x()));
   2845         inst = inst->Next_1xx();
   2846         break;
   2847       }
   2848       case Instruction::SHL_LONG_2ADDR: {
   2849         PREAMBLE();
   2850         uint4_t vregA = inst->VRegA_12x();
   2851         shadow_frame.SetVRegLong(vregA,
   2852                                  shadow_frame.GetVRegLong(vregA) <<
   2853                                  (shadow_frame.GetVReg(inst->VRegB_12x()) & 0x3f));
   2854         inst = inst->Next_1xx();
   2855         break;
   2856       }
   2857       case Instruction::SHR_LONG_2ADDR: {
   2858         PREAMBLE();
   2859         uint4_t vregA = inst->VRegA_12x();
   2860         shadow_frame.SetVRegLong(vregA,
   2861                                  shadow_frame.GetVRegLong(vregA) >>
   2862                                  (shadow_frame.GetVReg(inst->VRegB_12x()) & 0x3f));
   2863         inst = inst->Next_1xx();
   2864         break;
   2865       }
   2866       case Instruction::USHR_LONG_2ADDR: {
   2867         PREAMBLE();
   2868         uint4_t vregA = inst->VRegA_12x();
   2869         shadow_frame.SetVRegLong(vregA,
   2870                                  static_cast<uint64_t>(shadow_frame.GetVRegLong(vregA)) >>
   2871                                  (shadow_frame.GetVReg(inst->VRegB_12x()) & 0x3f));
   2872         inst = inst->Next_1xx();
   2873         break;
   2874       }
   2875       case Instruction::ADD_FLOAT_2ADDR: {
   2876         PREAMBLE();
   2877         uint4_t vregA = inst->VRegA_12x();
   2878         shadow_frame.SetVRegFloat(vregA,
   2879                                   shadow_frame.GetVRegFloat(vregA) +
   2880                                   shadow_frame.GetVRegFloat(inst->VRegB_12x()));
   2881         inst = inst->Next_1xx();
   2882         break;
   2883       }
   2884       case Instruction::SUB_FLOAT_2ADDR: {
   2885         PREAMBLE();
   2886         uint4_t vregA = inst->VRegA_12x();
   2887         shadow_frame.SetVRegFloat(vregA,
   2888                                   shadow_frame.GetVRegFloat(vregA) -
   2889                                   shadow_frame.GetVRegFloat(inst->VRegB_12x()));
   2890         inst = inst->Next_1xx();
   2891         break;
   2892       }
   2893       case Instruction::MUL_FLOAT_2ADDR: {
   2894         PREAMBLE();
   2895         uint4_t vregA = inst->VRegA_12x();
   2896         shadow_frame.SetVRegFloat(vregA,
   2897                                   shadow_frame.GetVRegFloat(vregA) *
   2898                                   shadow_frame.GetVRegFloat(inst->VRegB_12x()));
   2899         inst = inst->Next_1xx();
   2900         break;
   2901       }
   2902       case Instruction::DIV_FLOAT_2ADDR: {
   2903         PREAMBLE();
   2904         uint4_t vregA = inst->VRegA_12x();
   2905         shadow_frame.SetVRegFloat(vregA,
   2906                                   shadow_frame.GetVRegFloat(vregA) /
   2907                                   shadow_frame.GetVRegFloat(inst->VRegB_12x()));
   2908         inst = inst->Next_1xx();
   2909         break;
   2910       }
   2911       case Instruction::REM_FLOAT_2ADDR: {
   2912         PREAMBLE();
   2913         uint4_t vregA = inst->VRegA_12x();
   2914         shadow_frame.SetVRegFloat(vregA,
   2915                                   fmodf(shadow_frame.GetVRegFloat(vregA),
   2916                                         shadow_frame.GetVRegFloat(inst->VRegB_12x())));
   2917         inst = inst->Next_1xx();
   2918         break;
   2919       }
   2920       case Instruction::ADD_DOUBLE_2ADDR: {
   2921         PREAMBLE();
   2922         uint4_t vregA = inst->VRegA_12x();
   2923         shadow_frame.SetVRegDouble(vregA,
   2924                                    shadow_frame.GetVRegDouble(vregA) +
   2925                                    shadow_frame.GetVRegDouble(inst->VRegB_12x()));
   2926         inst = inst->Next_1xx();
   2927         break;
   2928       }
   2929       case Instruction::SUB_DOUBLE_2ADDR: {
   2930         PREAMBLE();
   2931         uint4_t vregA = inst->VRegA_12x();
   2932         shadow_frame.SetVRegDouble(vregA,
   2933                                    shadow_frame.GetVRegDouble(vregA) -
   2934                                    shadow_frame.GetVRegDouble(inst->VRegB_12x()));
   2935         inst = inst->Next_1xx();
   2936         break;
   2937       }
   2938       case Instruction::MUL_DOUBLE_2ADDR: {
   2939         PREAMBLE();
   2940         uint4_t vregA = inst->VRegA_12x();
   2941         shadow_frame.SetVRegDouble(vregA,
   2942                                    shadow_frame.GetVRegDouble(vregA) *
   2943                                    shadow_frame.GetVRegDouble(inst->VRegB_12x()));
   2944         inst = inst->Next_1xx();
   2945         break;
   2946       }
   2947       case Instruction::DIV_DOUBLE_2ADDR: {
   2948         PREAMBLE();
   2949         uint4_t vregA = inst->VRegA_12x();
   2950         shadow_frame.SetVRegDouble(vregA,
   2951                                    shadow_frame.GetVRegDouble(vregA) /
   2952                                    shadow_frame.GetVRegDouble(inst->VRegB_12x()));
   2953         inst = inst->Next_1xx();
   2954         break;
   2955       }
   2956       case Instruction::REM_DOUBLE_2ADDR: {
   2957         PREAMBLE();
   2958         uint4_t vregA = inst->VRegA_12x();
   2959         shadow_frame.SetVRegDouble(vregA,
   2960                                    fmod(shadow_frame.GetVRegDouble(vregA),
   2961                                         shadow_frame.GetVRegDouble(inst->VRegB_12x())));
   2962         inst = inst->Next_1xx();
   2963         break;
   2964       }
   2965       case Instruction::ADD_INT_LIT16:
   2966         PREAMBLE();
   2967         shadow_frame.SetVReg(inst->VRegA_22s(),
   2968                              shadow_frame.GetVReg(inst->VRegB_22s()) +
   2969                              inst->VRegC_22s());
   2970         inst = inst->Next_2xx();
   2971         break;
   2972       case Instruction::RSUB_INT:
   2973         PREAMBLE();
   2974         shadow_frame.SetVReg(inst->VRegA_22s(),
   2975                              inst->VRegC_22s() -
   2976                              shadow_frame.GetVReg(inst->VRegB_22s()));
   2977         inst = inst->Next_2xx();
   2978         break;
   2979       case Instruction::MUL_INT_LIT16:
   2980         PREAMBLE();
   2981         shadow_frame.SetVReg(inst->VRegA_22s(),
   2982                              shadow_frame.GetVReg(inst->VRegB_22s()) *
   2983                              inst->VRegC_22s());
   2984         inst = inst->Next_2xx();
   2985         break;
   2986       case Instruction::DIV_INT_LIT16: {
   2987         PREAMBLE();
   2988         bool success = DoIntDivide(shadow_frame, inst->VRegA_22s(),
   2989                                    shadow_frame.GetVReg(inst->VRegB_22s()), inst->VRegC_22s());
   2990         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2991         break;
   2992       }
   2993       case Instruction::REM_INT_LIT16: {
   2994         PREAMBLE();
   2995         bool success = DoIntRemainder(shadow_frame, inst->VRegA_22s(),
   2996                                       shadow_frame.GetVReg(inst->VRegB_22s()), inst->VRegC_22s());
   2997         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   2998         break;
   2999       }
   3000       case Instruction::AND_INT_LIT16:
   3001         PREAMBLE();
   3002         shadow_frame.SetVReg(inst->VRegA_22s(),
   3003                              shadow_frame.GetVReg(inst->VRegB_22s()) &
   3004                              inst->VRegC_22s());
   3005         inst = inst->Next_2xx();
   3006         break;
   3007       case Instruction::OR_INT_LIT16:
   3008         PREAMBLE();
   3009         shadow_frame.SetVReg(inst->VRegA_22s(),
   3010                              shadow_frame.GetVReg(inst->VRegB_22s()) |
   3011                              inst->VRegC_22s());
   3012         inst = inst->Next_2xx();
   3013         break;
   3014       case Instruction::XOR_INT_LIT16:
   3015         PREAMBLE();
   3016         shadow_frame.SetVReg(inst->VRegA_22s(),
   3017                              shadow_frame.GetVReg(inst->VRegB_22s()) ^
   3018                              inst->VRegC_22s());
   3019         inst = inst->Next_2xx();
   3020         break;
   3021       case Instruction::ADD_INT_LIT8:
   3022         PREAMBLE();
   3023         shadow_frame.SetVReg(inst->VRegA_22b(),
   3024                              shadow_frame.GetVReg(inst->VRegB_22b()) +
   3025                              inst->VRegC_22b());
   3026         inst = inst->Next_2xx();
   3027         break;
   3028       case Instruction::RSUB_INT_LIT8:
   3029         PREAMBLE();
   3030         shadow_frame.SetVReg(inst->VRegA_22b(),
   3031                              inst->VRegC_22b() -
   3032                              shadow_frame.GetVReg(inst->VRegB_22b()));
   3033         inst = inst->Next_2xx();
   3034         break;
   3035       case Instruction::MUL_INT_LIT8:
   3036         PREAMBLE();
   3037         shadow_frame.SetVReg(inst->VRegA_22b(),
   3038                              shadow_frame.GetVReg(inst->VRegB_22b()) *
   3039                              inst->VRegC_22b());
   3040         inst = inst->Next_2xx();
   3041         break;
   3042       case Instruction::DIV_INT_LIT8: {
   3043         PREAMBLE();
   3044         bool success = DoIntDivide(shadow_frame, inst->VRegA_22b(),
   3045                                    shadow_frame.GetVReg(inst->VRegB_22b()), inst->VRegC_22b());
   3046         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   3047         break;
   3048       }
   3049       case Instruction::REM_INT_LIT8: {
   3050         PREAMBLE();
   3051         bool success = DoIntRemainder(shadow_frame, inst->VRegA_22b(),
   3052                                       shadow_frame.GetVReg(inst->VRegB_22b()), inst->VRegC_22b());
   3053         POSSIBLY_HANDLE_PENDING_EXCEPTION(!success, Next_2xx);
   3054         break;
   3055       }
   3056       case Instruction::AND_INT_LIT8:
   3057         PREAMBLE();
   3058         shadow_frame.SetVReg(inst->VRegA_22b(),
   3059                              shadow_frame.GetVReg(inst->VRegB_22b()) &
   3060                              inst->VRegC_22b());
   3061         inst = inst->Next_2xx();
   3062         break;
   3063       case Instruction::OR_INT_LIT8:
   3064         PREAMBLE();
   3065         shadow_frame.SetVReg(inst->VRegA_22b(),
   3066                              shadow_frame.GetVReg(inst->VRegB_22b()) |
   3067                              inst->VRegC_22b());
   3068         inst = inst->Next_2xx();
   3069         break;
   3070       case Instruction::XOR_INT_LIT8:
   3071         PREAMBLE();
   3072         shadow_frame.SetVReg(inst->VRegA_22b(),
   3073                              shadow_frame.GetVReg(inst->VRegB_22b()) ^
   3074                              inst->VRegC_22b());
   3075         inst = inst->Next_2xx();
   3076         break;
   3077       case Instruction::SHL_INT_LIT8:
   3078         PREAMBLE();
   3079         shadow_frame.SetVReg(inst->VRegA_22b(),
   3080                              shadow_frame.GetVReg(inst->VRegB_22b()) <<
   3081                              (inst->VRegC_22b() & 0x1f));
   3082         inst = inst->Next_2xx();
   3083         break;
   3084       case Instruction::SHR_INT_LIT8:
   3085         PREAMBLE();
   3086         shadow_frame.SetVReg(inst->VRegA_22b(),
   3087                              shadow_frame.GetVReg(inst->VRegB_22b()) >>
   3088                              (inst->VRegC_22b() & 0x1f));
   3089         inst = inst->Next_2xx();
   3090         break;
   3091       case Instruction::USHR_INT_LIT8:
   3092         PREAMBLE();
   3093         shadow_frame.SetVReg(inst->VRegA_22b(),
   3094                              static_cast<uint32_t>(shadow_frame.GetVReg(inst->VRegB_22b())) >>
   3095                              (inst->VRegC_22b() & 0x1f));
   3096         inst = inst->Next_2xx();
   3097         break;
   3098       case Instruction::UNUSED_3E ... Instruction::UNUSED_43:
   3099       case Instruction::UNUSED_EB ... Instruction::UNUSED_FF:
   3100       case Instruction::UNUSED_79:
   3101       case Instruction::UNUSED_7A:
   3102         UnexpectedOpcode(inst, mh);
   3103     }
   3104   }
   3105 }  // NOLINT(readability/fn_size)
   3106 
   3107 static JValue Execute(Thread* self, MethodHelper& mh, const DexFile::CodeItem* code_item,
   3108                       ShadowFrame& shadow_frame, JValue result_register)
   3109     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
   3110 
   3111 static inline JValue Execute(Thread* self, MethodHelper& mh, const DexFile::CodeItem* code_item,
   3112                              ShadowFrame& shadow_frame, JValue result_register) {
   3113   DCHECK(shadow_frame.GetMethod() == mh.GetMethod() ||
   3114          shadow_frame.GetMethod()->GetDeclaringClass()->IsProxyClass());
   3115   DCHECK(!shadow_frame.GetMethod()->IsAbstract());
   3116   DCHECK(!shadow_frame.GetMethod()->IsNative());
   3117   if (shadow_frame.GetMethod()->IsPreverified()) {
   3118     // Enter the "without access check" interpreter.
   3119     return ExecuteImpl<false>(self, mh, code_item, shadow_frame, result_register);
   3120   } else {
   3121     // Enter the "with access check" interpreter.
   3122     return ExecuteImpl<true>(self, mh, code_item, shadow_frame, result_register);
   3123   }
   3124 }
   3125 
   3126 void EnterInterpreterFromInvoke(Thread* self, ArtMethod* method, Object* receiver,
   3127                                 uint32_t* args, JValue* result) {
   3128   DCHECK_EQ(self, Thread::Current());
   3129   if (UNLIKELY(__builtin_frame_address(0) < self->GetStackEnd())) {
   3130     ThrowStackOverflowError(self);
   3131     return;
   3132   }
   3133 
   3134   MethodHelper mh(method);
   3135   const DexFile::CodeItem* code_item = mh.GetCodeItem();
   3136   uint16_t num_regs;
   3137   uint16_t num_ins;
   3138   if (code_item != NULL) {
   3139     num_regs =  code_item->registers_size_;
   3140     num_ins = code_item->ins_size_;
   3141   } else if (method->IsAbstract()) {
   3142     ThrowAbstractMethodError(method);
   3143     return;
   3144   } else {
   3145     DCHECK(method->IsNative());
   3146     num_regs = num_ins = ArtMethod::NumArgRegisters(mh.GetShorty());
   3147     if (!method->IsStatic()) {
   3148       num_regs++;
   3149       num_ins++;
   3150     }
   3151   }
   3152   // Set up shadow frame with matching number of reference slots to vregs.
   3153   ShadowFrame* last_shadow_frame = self->GetManagedStack()->GetTopShadowFrame();
   3154   void* memory = alloca(ShadowFrame::ComputeSize(num_regs));
   3155   ShadowFrame* shadow_frame(ShadowFrame::Create(num_regs, last_shadow_frame, method, 0, memory));
   3156   self->PushShadowFrame(shadow_frame);
   3157   size_t cur_reg = num_regs - num_ins;
   3158   if (!method->IsStatic()) {
   3159     CHECK(receiver != NULL);
   3160     shadow_frame->SetVRegReference(cur_reg, receiver);
   3161     ++cur_reg;
   3162   } else if (UNLIKELY(!method->GetDeclaringClass()->IsInitializing())) {
   3163     ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
   3164     if (UNLIKELY(!class_linker->EnsureInitialized(method->GetDeclaringClass(),
   3165                                                   true, true))) {
   3166       CHECK(self->IsExceptionPending());
   3167       self->PopShadowFrame();
   3168       return;
   3169     }
   3170     CHECK(method->GetDeclaringClass()->IsInitializing());
   3171   }
   3172   const char* shorty = mh.GetShorty();
   3173   for (size_t shorty_pos = 0, arg_pos = 0; cur_reg < num_regs; ++shorty_pos, ++arg_pos, cur_reg++) {
   3174     DCHECK_LT(shorty_pos + 1, mh.GetShortyLength());
   3175     switch (shorty[shorty_pos + 1]) {
   3176       case 'L': {
   3177         Object* o = reinterpret_cast<Object*>(args[arg_pos]);
   3178         shadow_frame->SetVRegReference(cur_reg, o);
   3179         break;
   3180       }
   3181       case 'J': case 'D': {
   3182         uint64_t wide_value = (static_cast<uint64_t>(args[arg_pos + 1]) << 32) | args[arg_pos];
   3183         shadow_frame->SetVRegLong(cur_reg, wide_value);
   3184         cur_reg++;
   3185         arg_pos++;
   3186         break;
   3187       }
   3188       default:
   3189         shadow_frame->SetVReg(cur_reg, args[arg_pos]);
   3190         break;
   3191     }
   3192   }
   3193   if (LIKELY(!method->IsNative())) {
   3194     JValue r = Execute(self, mh, code_item, *shadow_frame, JValue());
   3195     if (result != NULL) {
   3196       *result = r;
   3197     }
   3198   } else {
   3199     // We don't expect to be asked to interpret native code (which is entered via a JNI compiler
   3200     // generated stub) except during testing and image writing.
   3201     if (!Runtime::Current()->IsStarted()) {
   3202       UnstartedRuntimeJni(self, method, receiver, args, result);
   3203     } else {
   3204       InterpreterJni(self, method, shorty, receiver, args, result);
   3205     }
   3206   }
   3207   self->PopShadowFrame();
   3208 }
   3209 
   3210 void EnterInterpreterFromDeoptimize(Thread* self, ShadowFrame* shadow_frame, JValue* ret_val)
   3211     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
   3212   JValue value;
   3213   value.SetJ(ret_val->GetJ());  // Set value to last known result in case the shadow frame chain is empty.
   3214   MethodHelper mh;
   3215   while (shadow_frame != NULL) {
   3216     self->SetTopOfShadowStack(shadow_frame);
   3217     mh.ChangeMethod(shadow_frame->GetMethod());
   3218     const DexFile::CodeItem* code_item = mh.GetCodeItem();
   3219     value = Execute(self, mh, code_item, *shadow_frame, value);
   3220     ShadowFrame* old_frame = shadow_frame;
   3221     shadow_frame = shadow_frame->GetLink();
   3222     delete old_frame;
   3223   }
   3224   ret_val->SetJ(value.GetJ());
   3225 }
   3226 
   3227 JValue EnterInterpreterFromStub(Thread* self, MethodHelper& mh, const DexFile::CodeItem* code_item,
   3228                                 ShadowFrame& shadow_frame) {
   3229   DCHECK_EQ(self, Thread::Current());
   3230   if (UNLIKELY(__builtin_frame_address(0) < self->GetStackEnd())) {
   3231     ThrowStackOverflowError(self);
   3232     return JValue();
   3233   }
   3234 
   3235   return Execute(self, mh, code_item, shadow_frame, JValue());
   3236 }
   3237 
   3238 extern "C" void artInterpreterToInterpreterBridge(Thread* self, MethodHelper& mh,
   3239                                                   const DexFile::CodeItem* code_item,
   3240                                                   ShadowFrame* shadow_frame, JValue* result) {
   3241   if (UNLIKELY(__builtin_frame_address(0) < self->GetStackEnd())) {
   3242     ThrowStackOverflowError(self);
   3243     return;
   3244   }
   3245 
   3246   ArtMethod* method = shadow_frame->GetMethod();
   3247   if (method->IsStatic() && !method->GetDeclaringClass()->IsInitializing()) {
   3248     if (!Runtime::Current()->GetClassLinker()->EnsureInitialized(method->GetDeclaringClass(),
   3249                                                                  true, true)) {
   3250       DCHECK(Thread::Current()->IsExceptionPending());
   3251       return;
   3252     }
   3253     CHECK(method->GetDeclaringClass()->IsInitializing());
   3254   }
   3255 
   3256   self->PushShadowFrame(shadow_frame);
   3257 
   3258   if (LIKELY(!method->IsNative())) {
   3259     result->SetJ(Execute(self, mh, code_item, *shadow_frame, JValue()).GetJ());
   3260   } else {
   3261     // We don't expect to be asked to interpret native code (which is entered via a JNI compiler
   3262     // generated stub) except during testing and image writing.
   3263     CHECK(!Runtime::Current()->IsStarted());
   3264     Object* receiver = method->IsStatic() ? NULL : shadow_frame->GetVRegReference(0);
   3265     uint32_t* args = shadow_frame->GetVRegArgs(method->IsStatic() ? 0 : 1);
   3266     UnstartedRuntimeJni(self, method, receiver, args, result);
   3267   }
   3268 
   3269   self->PopShadowFrame();
   3270   return;
   3271 }
   3272 
   3273 }  // namespace interpreter
   3274 }  // namespace art
   3275