xref: /art/runtime/interpreter/interpreter_intrinsics.cc

/*
 * Copyright (C) 2017 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "interpreter/interpreter_intrinsics.h"

#include "dex/dex_instruction.h"
#include "intrinsics_enum.h"
#include "interpreter/interpreter_common.h"

namespace art {
namespace interpreter {


#define BINARY_INTRINSIC(name, op, get1, get2, set)                 \
static ALWAYS_INLINE bool name(ShadowFrame* shadow_frame,           \
                               const Instruction* inst,             \
                               uint16_t inst_data,                  \
                               JValue* result_register)             \
    REQUIRES_SHARED(Locks::mutator_lock_) {                         \
  uint32_t arg[Instruction::kMaxVarArgRegs] = {};                   \
  inst->GetVarArgs(arg, inst_data);                                 \
  result_register->set(op(shadow_frame->get1, shadow_frame->get2)); \
  return true;                                                      \
}

#define BINARY_II_INTRINSIC(name, op, set) \
    BINARY_INTRINSIC(name, op, GetVReg(arg[0]), GetVReg(arg[1]), set)

#define BINARY_JJ_INTRINSIC(name, op, set) \
    BINARY_INTRINSIC(name, op, GetVRegLong(arg[0]), GetVRegLong(arg[2]), set)

#define BINARY_JI_INTRINSIC(name, op, set) \
    BINARY_INTRINSIC(name, op, GetVRegLong(arg[0]), GetVReg(arg[2]), set)

#define UNARY_INTRINSIC(name, op, get, set)                  \
static ALWAYS_INLINE bool name(ShadowFrame* shadow_frame,    \
                               const Instruction* inst,      \
                               uint16_t inst_data,           \
                               JValue* result_register)      \
    REQUIRES_SHARED(Locks::mutator_lock_) {                  \
  uint32_t arg[Instruction::kMaxVarArgRegs] = {};            \
  inst->GetVarArgs(arg, inst_data);                          \
  result_register->set(op(shadow_frame->get(arg[0])));       \
  return true;                                               \
}


// java.lang.Integer.reverse(I)I
UNARY_INTRINSIC(MterpIntegerReverse, ReverseBits32, GetVReg, SetI);

// java.lang.Integer.reverseBytes(I)I
UNARY_INTRINSIC(MterpIntegerReverseBytes, BSWAP, GetVReg, SetI);

// java.lang.Integer.bitCount(I)I
UNARY_INTRINSIC(MterpIntegerBitCount, POPCOUNT, GetVReg, SetI);

// java.lang.Integer.compare(II)I
BINARY_II_INTRINSIC(MterpIntegerCompare, Compare, SetI);

// java.lang.Integer.highestOneBit(I)I
UNARY_INTRINSIC(MterpIntegerHighestOneBit, HighestOneBitValue, GetVReg, SetI);

// java.lang.Integer.LowestOneBit(I)I
UNARY_INTRINSIC(MterpIntegerLowestOneBit, LowestOneBitValue, GetVReg, SetI);

// java.lang.Integer.numberOfLeadingZeros(I)I
UNARY_INTRINSIC(MterpIntegerNumberOfLeadingZeros, JAVASTYLE_CLZ, GetVReg, SetI);

// java.lang.Integer.numberOfTrailingZeros(I)I
UNARY_INTRINSIC(MterpIntegerNumberOfTrailingZeros, JAVASTYLE_CTZ, GetVReg, SetI);

// java.lang.Integer.rotateRight(II)I
BINARY_II_INTRINSIC(MterpIntegerRotateRight, (Rot<int32_t, false>), SetI);

// java.lang.Integer.rotateLeft(II)I
BINARY_II_INTRINSIC(MterpIntegerRotateLeft, (Rot<int32_t, true>), SetI);

// java.lang.Integer.signum(I)I
UNARY_INTRINSIC(MterpIntegerSignum, Signum, GetVReg, SetI);

// java.lang.Long.reverse(I)I
UNARY_INTRINSIC(MterpLongReverse, ReverseBits64, GetVRegLong, SetJ);

// java.lang.Long.reverseBytes(J)J
UNARY_INTRINSIC(MterpLongReverseBytes, BSWAP, GetVRegLong, SetJ);

// java.lang.Long.bitCount(J)I
UNARY_INTRINSIC(MterpLongBitCount, POPCOUNT, GetVRegLong, SetI);

// java.lang.Long.compare(JJ)I
BINARY_JJ_INTRINSIC(MterpLongCompare, Compare, SetI);

// java.lang.Long.highestOneBit(J)J
UNARY_INTRINSIC(MterpLongHighestOneBit, HighestOneBitValue, GetVRegLong, SetJ);

// java.lang.Long.lowestOneBit(J)J
UNARY_INTRINSIC(MterpLongLowestOneBit, LowestOneBitValue, GetVRegLong, SetJ);

// java.lang.Long.numberOfLeadingZeros(J)I
UNARY_INTRINSIC(MterpLongNumberOfLeadingZeros, JAVASTYLE_CLZ, GetVRegLong, SetJ);

// java.lang.Long.numberOfTrailingZeros(J)I
UNARY_INTRINSIC(MterpLongNumberOfTrailingZeros, JAVASTYLE_CTZ, GetVRegLong, SetJ);

// java.lang.Long.rotateRight(JI)J
BINARY_JJ_INTRINSIC(MterpLongRotateRight, (Rot<int64_t, false>), SetJ);

// java.lang.Long.rotateLeft(JI)J
BINARY_JJ_INTRINSIC(MterpLongRotateLeft, (Rot<int64_t, true>), SetJ);

// java.lang.Long.signum(J)I
UNARY_INTRINSIC(MterpLongSignum, Signum, GetVRegLong, SetI);

// java.lang.Short.reverseBytes(S)S
UNARY_INTRINSIC(MterpShortReverseBytes, BSWAP, GetVRegShort, SetS);

// java.lang.Math.min(II)I
BINARY_II_INTRINSIC(MterpMathMinIntInt, std::min, SetI);

// java.lang.Math.min(JJ)J
BINARY_JJ_INTRINSIC(MterpMathMinLongLong, std::min, SetJ);

// java.lang.Math.max(II)I
BINARY_II_INTRINSIC(MterpMathMaxIntInt, std::max, SetI);

// java.lang.Math.max(JJ)J
BINARY_JJ_INTRINSIC(MterpMathMaxLongLong, std::max, SetJ);

// java.lang.Math.abs(I)I
UNARY_INTRINSIC(MterpMathAbsInt, std::abs, GetVReg, SetI);

// java.lang.Math.abs(J)J
UNARY_INTRINSIC(MterpMathAbsLong, std::abs, GetVRegLong, SetJ);

// java.lang.Math.abs(F)F
UNARY_INTRINSIC(MterpMathAbsFloat, 0x7fffffff&, GetVReg, SetI);

// java.lang.Math.abs(D)D
UNARY_INTRINSIC(MterpMathAbsDouble, INT64_C(0x7fffffffffffffff)&, GetVRegLong, SetJ);

// java.lang.Math.sqrt(D)D
UNARY_INTRINSIC(MterpMathSqrt, std::sqrt, GetVRegDouble, SetD);

// java.lang.Math.ceil(D)D
UNARY_INTRINSIC(MterpMathCeil, std::ceil, GetVRegDouble, SetD);

// java.lang.Math.floor(D)D
UNARY_INTRINSIC(MterpMathFloor, std::floor, GetVRegDouble, SetD);

// java.lang.Math.sin(D)D
UNARY_INTRINSIC(MterpMathSin, std::sin, GetVRegDouble, SetD);

// java.lang.Math.cos(D)D
UNARY_INTRINSIC(MterpMathCos, std::cos, GetVRegDouble, SetD);

// java.lang.Math.tan(D)D
UNARY_INTRINSIC(MterpMathTan, std::tan, GetVRegDouble, SetD);

// java.lang.Math.asin(D)D
UNARY_INTRINSIC(MterpMathAsin, std::asin, GetVRegDouble, SetD);

// java.lang.Math.acos(D)D
UNARY_INTRINSIC(MterpMathAcos, std::acos, GetVRegDouble, SetD);

// java.lang.Math.atan(D)D
UNARY_INTRINSIC(MterpMathAtan, std::atan, GetVRegDouble, SetD);

// java.lang.String.charAt(I)C
static ALWAYS_INLINE bool MterpStringCharAt(ShadowFrame* shadow_frame,
                                            const Instruction* inst,
                                            uint16_t inst_data,
                                            JValue* result_register)
    REQUIRES_SHARED(Locks::mutator_lock_) {
  uint32_t arg[Instruction::kMaxVarArgRegs] = {};
  inst->GetVarArgs(arg, inst_data);
  mirror::String* str = shadow_frame->GetVRegReference(arg[0])->AsString();
  int length = str->GetLength();
  int index = shadow_frame->GetVReg(arg[1]);
  uint16_t res;
  if (UNLIKELY(index < 0) || (index >= length)) {
    return false;  // Punt and let non-intrinsic version deal with the throw.
  }
  if (str->IsCompressed()) {
    res = str->GetValueCompressed()[index];
  } else {
    res = str->GetValue()[index];
  }
  result_register->SetC(res);
  return true;
}

// java.lang.String.compareTo(Ljava/lang/string)I
static ALWAYS_INLINE bool MterpStringCompareTo(ShadowFrame* shadow_frame,
                                               const Instruction* inst,
                                               uint16_t inst_data,
                                               JValue* result_register)
    REQUIRES_SHARED(Locks::mutator_lock_) {
  uint32_t arg[Instruction::kMaxVarArgRegs] = {};
  inst->GetVarArgs(arg, inst_data);
  mirror::String* str = shadow_frame->GetVRegReference(arg[0])->AsString();
  mirror::Object* arg1 = shadow_frame->GetVRegReference(arg[1]);
  if (arg1 == nullptr) {
    return false;
  }
  result_register->SetI(str->CompareTo(arg1->AsString()));
  return true;
}

#define STRING_INDEXOF_INTRINSIC(name, starting_pos)             \
static ALWAYS_INLINE bool Mterp##name(ShadowFrame* shadow_frame, \
                                      const Instruction* inst,   \
                                      uint16_t inst_data,        \
                                      JValue* result_register)   \
    REQUIRES_SHARED(Locks::mutator_lock_) {                      \
  uint32_t arg[Instruction::kMaxVarArgRegs] = {};                \
  inst->GetVarArgs(arg, inst_data);                              \
  mirror::String* str = shadow_frame->GetVRegReference(arg[0])->AsString(); \
  int ch = shadow_frame->GetVReg(arg[1]);                        \
  if (ch >= 0x10000) {                                           \
    /* Punt if supplementary char. */                            \
    return false;                                                \
  }                                                              \
  result_register->SetI(str->FastIndexOf(ch, starting_pos));     \
  return true;                                                   \
}

// java.lang.String.indexOf(I)I
STRING_INDEXOF_INTRINSIC(StringIndexOf, 0);

// java.lang.String.indexOf(II)I
STRING_INDEXOF_INTRINSIC(StringIndexOfAfter, shadow_frame->GetVReg(arg[2]));

#define SIMPLE_STRING_INTRINSIC(name, operation)                 \
static ALWAYS_INLINE bool Mterp##name(ShadowFrame* shadow_frame, \
                                      const Instruction* inst,   \
                                      uint16_t inst_data,        \
                                      JValue* result_register)   \
    REQUIRES_SHARED(Locks::mutator_lock_) {                      \
  uint32_t arg[Instruction::kMaxVarArgRegs] = {};                \
  inst->GetVarArgs(arg, inst_data);                              \
  mirror::String* str = shadow_frame->GetVRegReference(arg[0])->AsString(); \
  result_register->operation;                                    \
  return true;                                                   \
}

// java.lang.String.isEmpty()Z
SIMPLE_STRING_INTRINSIC(StringIsEmpty, SetZ(str->GetLength() == 0))

// java.lang.String.length()I
SIMPLE_STRING_INTRINSIC(StringLength, SetI(str->GetLength()))

// java.lang.String.getCharsNoCheck(II[CI)V
static ALWAYS_INLINE bool MterpStringGetCharsNoCheck(ShadowFrame* shadow_frame,
                                                     const Instruction* inst,
                                                     uint16_t inst_data,
                                                     JValue* result_register ATTRIBUTE_UNUSED)
    REQUIRES_SHARED(Locks::mutator_lock_) {
  // Start, end & index already checked by caller - won't throw.  Destination is uncompressed.
  uint32_t arg[Instruction::kMaxVarArgRegs] = {};
  inst->GetVarArgs(arg, inst_data);
  mirror::String* str = shadow_frame->GetVRegReference(arg[0])->AsString();
  int32_t start = shadow_frame->GetVReg(arg[1]);
  int32_t end = shadow_frame->GetVReg(arg[2]);
  int32_t index = shadow_frame->GetVReg(arg[4]);
  mirror::CharArray* array = shadow_frame->GetVRegReference(arg[3])->AsCharArray();
  uint16_t* dst = array->GetData() + index;
  int32_t len = (end - start);
  if (str->IsCompressed()) {
    const uint8_t* src_8 = str->GetValueCompressed() + start;
    for (int i = 0; i < len; i++) {
      dst[i] = src_8[i];
    }
  } else {
    uint16_t* src_16 = str->GetValue() + start;
    memcpy(dst, src_16, len * sizeof(uint16_t));
  }
  return true;
}

// java.lang.String.equalsLjava/lang/Object;)Z
static ALWAYS_INLINE bool MterpStringEquals(ShadowFrame* shadow_frame,
                                            const Instruction* inst,
                                            uint16_t inst_data,
                                            JValue* result_register)
    REQUIRES_SHARED(Locks::mutator_lock_) {
  uint32_t arg[Instruction::kMaxVarArgRegs] = {};
  inst->GetVarArgs(arg, inst_data);
  mirror::String* str = shadow_frame->GetVRegReference(arg[0])->AsString();
  mirror::Object* obj = shadow_frame->GetVRegReference(arg[1]);
  bool res = false;  // Assume not equal.
  if ((obj != nullptr) && obj->IsString()) {
    mirror::String* str2 = obj->AsString();
    if (str->GetCount() == str2->GetCount()) {
      // Length & compression status are same.  Can use block compare.
      void* bytes1;
      void* bytes2;
      int len = str->GetLength();
      if (str->IsCompressed()) {
        bytes1 = str->GetValueCompressed();
        bytes2 = str2->GetValueCompressed();
      } else {
        len *= sizeof(uint16_t);
        bytes1 = str->GetValue();
        bytes2 = str2->GetValue();
      }
      res = (memcmp(bytes1, bytes2, len) == 0);
    }
  }
  result_register->SetZ(res);
  return true;
}

#define VARHANDLE_FENCE_INTRINSIC(name, std_memory_operation)              \
static ALWAYS_INLINE bool name(ShadowFrame* shadow_frame ATTRIBUTE_UNUSED, \
                               const Instruction* inst ATTRIBUTE_UNUSED,   \
                               uint16_t inst_data ATTRIBUTE_UNUSED,        \
                               JValue* result_register ATTRIBUTE_UNUSED)   \
    REQUIRES_SHARED(Locks::mutator_lock_) {                                \
  std::atomic_thread_fence(std_memory_operation);                          \
  return true;                                                             \
}

// The VarHandle fence methods are static (unlike sun.misc.Unsafe versions).
// The fences for the LoadLoadFence and StoreStoreFence are stronger
// than strictly required, but the impact should be marginal.
VARHANDLE_FENCE_INTRINSIC(MterpVarHandleFullFence, std::memory_order_seq_cst)
VARHANDLE_FENCE_INTRINSIC(MterpVarHandleAcquireFence, std::memory_order_acquire)
VARHANDLE_FENCE_INTRINSIC(MterpVarHandleReleaseFence, std::memory_order_release)
VARHANDLE_FENCE_INTRINSIC(MterpVarHandleLoadLoadFence, std::memory_order_acquire)
VARHANDLE_FENCE_INTRINSIC(MterpVarHandleStoreStoreFence, std::memory_order_release)

#define METHOD_HANDLE_INVOKE_INTRINSIC(name)                                                      \
static ALWAYS_INLINE bool Mterp##name(ShadowFrame* shadow_frame,                                  \
                               const Instruction* inst,                                           \
                               uint16_t inst_data,                                                \
                               JValue* result)                                                    \
    REQUIRES_SHARED(Locks::mutator_lock_) {                                                       \
  if (inst->Opcode() == Instruction::INVOKE_POLYMORPHIC) {                                        \
    return DoInvokePolymorphic<false>(Thread::Current(), *shadow_frame, inst, inst_data, result); \
  } else {                                                                                        \
    return DoInvokePolymorphic<true>(Thread::Current(), *shadow_frame, inst, inst_data, result);  \
  }                                                                                               \
}

METHOD_HANDLE_INVOKE_INTRINSIC(MethodHandleInvokeExact)
METHOD_HANDLE_INVOKE_INTRINSIC(MethodHandleInvoke)

#define VAR_HANDLE_ACCESSOR_INTRINSIC(name)                                   \
static ALWAYS_INLINE bool Mterp##name(ShadowFrame* shadow_frame,              \
                               const Instruction* inst,                       \
                               uint16_t inst_data,                            \
                               JValue* result)                                \
    REQUIRES_SHARED(Locks::mutator_lock_) {                                   \
  return Do##name(Thread::Current(), *shadow_frame, inst, inst_data, result); \
}

VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleCompareAndExchange)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleCompareAndExchangeAcquire)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleCompareAndExchangeRelease)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleCompareAndSet)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleGet);
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleGetAcquire)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleGetAndAdd)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleGetAndAddAcquire)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleGetAndAddRelease)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleGetAndBitwiseAnd)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleGetAndBitwiseAndAcquire)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleGetAndBitwiseAndRelease)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleGetAndBitwiseOr)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleGetAndBitwiseOrAcquire)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleGetAndBitwiseOrRelease)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleGetAndBitwiseXor)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleGetAndBitwiseXorAcquire)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleGetAndBitwiseXorRelease)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleGetAndSet)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleGetAndSetAcquire)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleGetAndSetRelease)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleGetOpaque)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleGetVolatile)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleSet)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleSetOpaque)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleSetRelease)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleSetVolatile)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleWeakCompareAndSet)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleWeakCompareAndSetAcquire)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleWeakCompareAndSetPlain)
VAR_HANDLE_ACCESSOR_INTRINSIC(VarHandleWeakCompareAndSetRelease)

static ALWAYS_INLINE bool MterpReachabilityFence(ShadowFrame* shadow_frame ATTRIBUTE_UNUSED,
                                                 const Instruction* inst ATTRIBUTE_UNUSED,
                                                 uint16_t inst_data ATTRIBUTE_UNUSED,
                                                 JValue* result_register ATTRIBUTE_UNUSED)
    REQUIRES_SHARED(Locks::mutator_lock_) {
  // Do nothing; Its only purpose is to keep the argument reference live
  // at preceding suspend points. That's automatic in the interpreter.
  return true;
}

// Macro to help keep track of what's left to implement.
#define UNIMPLEMENTED_CASE(name)    \
    case Intrinsics::k##name:       \
      res = false;                  \
      break;

#define INTRINSIC_CASE(name)                                           \
    case Intrinsics::k##name:                                          \
      res = Mterp##name(shadow_frame, inst, inst_data, result_register); \
      break;

bool MterpHandleIntrinsic(ShadowFrame* shadow_frame,
                          ArtMethod* const called_method,
                          const Instruction* inst,
                          uint16_t inst_data,
                          JValue* result_register)
    REQUIRES_SHARED(Locks::mutator_lock_) {
  Intrinsics intrinsic = static_cast<Intrinsics>(called_method->GetIntrinsic());
  bool res = false;  // Assume failure
  switch (intrinsic) {
    UNIMPLEMENTED_CASE(DoubleDoubleToRawLongBits /* (D)J */)
    UNIMPLEMENTED_CASE(DoubleDoubleToLongBits /* (D)J */)
    UNIMPLEMENTED_CASE(DoubleIsInfinite /* (D)Z */)
    UNIMPLEMENTED_CASE(DoubleIsNaN /* (D)Z */)
    UNIMPLEMENTED_CASE(DoubleLongBitsToDouble /* (J)D */)
    UNIMPLEMENTED_CASE(FloatFloatToRawIntBits /* (F)I */)
    UNIMPLEMENTED_CASE(FloatFloatToIntBits /* (F)I */)
    UNIMPLEMENTED_CASE(FloatIsInfinite /* (F)Z */)
    UNIMPLEMENTED_CASE(FloatIsNaN /* (F)Z */)
    UNIMPLEMENTED_CASE(FloatIntBitsToFloat /* (I)F */)
    INTRINSIC_CASE(IntegerReverse)
    INTRINSIC_CASE(IntegerReverseBytes)
    INTRINSIC_CASE(IntegerBitCount)
    INTRINSIC_CASE(IntegerCompare)
    INTRINSIC_CASE(IntegerHighestOneBit)
    INTRINSIC_CASE(IntegerLowestOneBit)
    INTRINSIC_CASE(IntegerNumberOfLeadingZeros)
    INTRINSIC_CASE(IntegerNumberOfTrailingZeros)
    INTRINSIC_CASE(IntegerRotateRight)
    INTRINSIC_CASE(IntegerRotateLeft)
    INTRINSIC_CASE(IntegerSignum)
    INTRINSIC_CASE(LongReverse)
    INTRINSIC_CASE(LongReverseBytes)
    INTRINSIC_CASE(LongBitCount)
    INTRINSIC_CASE(LongCompare)
    INTRINSIC_CASE(LongHighestOneBit)
    INTRINSIC_CASE(LongLowestOneBit)
    INTRINSIC_CASE(LongNumberOfLeadingZeros)
    INTRINSIC_CASE(LongNumberOfTrailingZeros)
    INTRINSIC_CASE(LongRotateRight)
    INTRINSIC_CASE(LongRotateLeft)
    INTRINSIC_CASE(LongSignum)
    INTRINSIC_CASE(ShortReverseBytes)
    INTRINSIC_CASE(MathAbsDouble)
    INTRINSIC_CASE(MathAbsFloat)
    INTRINSIC_CASE(MathAbsLong)
    INTRINSIC_CASE(MathAbsInt)
    UNIMPLEMENTED_CASE(MathMinDoubleDouble /* (DD)D */)
    UNIMPLEMENTED_CASE(MathMinFloatFloat /* (FF)F */)
    INTRINSIC_CASE(MathMinLongLong)
    INTRINSIC_CASE(MathMinIntInt)
    UNIMPLEMENTED_CASE(MathMaxDoubleDouble /* (DD)D */)
    UNIMPLEMENTED_CASE(MathMaxFloatFloat /* (FF)F */)
    INTRINSIC_CASE(MathMaxLongLong)
    INTRINSIC_CASE(MathMaxIntInt)
    INTRINSIC_CASE(MathCos)
    INTRINSIC_CASE(MathSin)
    INTRINSIC_CASE(MathAcos)
    INTRINSIC_CASE(MathAsin)
    INTRINSIC_CASE(MathAtan)
    UNIMPLEMENTED_CASE(MathAtan2 /* (DD)D */)
    UNIMPLEMENTED_CASE(MathCbrt /* (D)D */)
    UNIMPLEMENTED_CASE(MathCosh /* (D)D */)
    UNIMPLEMENTED_CASE(MathExp /* (D)D */)
    UNIMPLEMENTED_CASE(MathExpm1 /* (D)D */)
    UNIMPLEMENTED_CASE(MathHypot /* (DD)D */)
    UNIMPLEMENTED_CASE(MathLog /* (D)D */)
    UNIMPLEMENTED_CASE(MathLog10 /* (D)D */)
    UNIMPLEMENTED_CASE(MathNextAfter /* (DD)D */)
    UNIMPLEMENTED_CASE(MathPow /* (DD)D */)
    UNIMPLEMENTED_CASE(MathSinh /* (D)D */)
    INTRINSIC_CASE(MathTan)
    UNIMPLEMENTED_CASE(MathTanh /* (D)D */)
    INTRINSIC_CASE(MathSqrt)
    INTRINSIC_CASE(MathCeil)
    INTRINSIC_CASE(MathFloor)
    UNIMPLEMENTED_CASE(MathRint /* (D)D */)
    UNIMPLEMENTED_CASE(MathRoundDouble /* (D)J */)
    UNIMPLEMENTED_CASE(MathRoundFloat /* (F)I */)
    UNIMPLEMENTED_CASE(SystemArrayCopyChar /* ([CI[CII)V */)
    UNIMPLEMENTED_CASE(SystemArrayCopy /* (Ljava/lang/Object;ILjava/lang/Object;II)V */)
    UNIMPLEMENTED_CASE(ThreadCurrentThread /* ()Ljava/lang/Thread; */)
    UNIMPLEMENTED_CASE(MemoryPeekByte /* (J)B */)
    UNIMPLEMENTED_CASE(MemoryPeekIntNative /* (J)I */)
    UNIMPLEMENTED_CASE(MemoryPeekLongNative /* (J)J */)
    UNIMPLEMENTED_CASE(MemoryPeekShortNative /* (J)S */)
    UNIMPLEMENTED_CASE(MemoryPokeByte /* (JB)V */)
    UNIMPLEMENTED_CASE(MemoryPokeIntNative /* (JI)V */)
    UNIMPLEMENTED_CASE(MemoryPokeLongNative /* (JJ)V */)
    UNIMPLEMENTED_CASE(MemoryPokeShortNative /* (JS)V */)
    INTRINSIC_CASE(ReachabilityFence /* (Ljava/lang/Object;)V */)
    INTRINSIC_CASE(StringCharAt)
    INTRINSIC_CASE(StringCompareTo)
    INTRINSIC_CASE(StringEquals)
    INTRINSIC_CASE(StringGetCharsNoCheck)
    INTRINSIC_CASE(StringIndexOf)
    INTRINSIC_CASE(StringIndexOfAfter)
    UNIMPLEMENTED_CASE(StringStringIndexOf /* (Ljava/lang/String;)I */)
    UNIMPLEMENTED_CASE(StringStringIndexOfAfter /* (Ljava/lang/String;I)I */)
    INTRINSIC_CASE(StringIsEmpty)
    INTRINSIC_CASE(StringLength)
    UNIMPLEMENTED_CASE(StringNewStringFromBytes /* ([BIII)Ljava/lang/String; */)
    UNIMPLEMENTED_CASE(StringNewStringFromChars /* (II[C)Ljava/lang/String; */)
    UNIMPLEMENTED_CASE(StringNewStringFromString /* (Ljava/lang/String;)Ljava/lang/String; */)
    UNIMPLEMENTED_CASE(StringBufferAppend /* (Ljava/lang/String;)Ljava/lang/StringBuffer; */)
    UNIMPLEMENTED_CASE(StringBufferLength /* ()I */)
    UNIMPLEMENTED_CASE(StringBufferToString /* ()Ljava/lang/String; */)
    UNIMPLEMENTED_CASE(StringBuilderAppend /* (Ljava/lang/String;)Ljava/lang/StringBuilder; */)
    UNIMPLEMENTED_CASE(StringBuilderLength /* ()I */)
    UNIMPLEMENTED_CASE(StringBuilderToString /* ()Ljava/lang/String; */)
    UNIMPLEMENTED_CASE(UnsafeCASInt /* (Ljava/lang/Object;JII)Z */)
    UNIMPLEMENTED_CASE(UnsafeCASLong /* (Ljava/lang/Object;JJJ)Z */)
    UNIMPLEMENTED_CASE(UnsafeCASObject /* (Ljava/lang/Object;JLjava/lang/Object;Ljava/lang/Object;)Z */)
    UNIMPLEMENTED_CASE(UnsafeGet /* (Ljava/lang/Object;J)I */)
    UNIMPLEMENTED_CASE(UnsafeGetVolatile /* (Ljava/lang/Object;J)I */)
    UNIMPLEMENTED_CASE(UnsafeGetObject /* (Ljava/lang/Object;J)Ljava/lang/Object; */)
    UNIMPLEMENTED_CASE(UnsafeGetObjectVolatile /* (Ljava/lang/Object;J)Ljava/lang/Object; */)
    UNIMPLEMENTED_CASE(UnsafeGetLong /* (Ljava/lang/Object;J)J */)
    UNIMPLEMENTED_CASE(UnsafeGetLongVolatile /* (Ljava/lang/Object;J)J */)
    UNIMPLEMENTED_CASE(UnsafePut /* (Ljava/lang/Object;JI)V */)
    UNIMPLEMENTED_CASE(UnsafePutOrdered /* (Ljava/lang/Object;JI)V */)
    UNIMPLEMENTED_CASE(UnsafePutVolatile /* (Ljava/lang/Object;JI)V */)
    UNIMPLEMENTED_CASE(UnsafePutObject /* (Ljava/lang/Object;JLjava/lang/Object;)V */)
    UNIMPLEMENTED_CASE(UnsafePutObjectOrdered /* (Ljava/lang/Object;JLjava/lang/Object;)V */)
    UNIMPLEMENTED_CASE(UnsafePutObjectVolatile /* (Ljava/lang/Object;JLjava/lang/Object;)V */)
    UNIMPLEMENTED_CASE(UnsafePutLong /* (Ljava/lang/Object;JJ)V */)
    UNIMPLEMENTED_CASE(UnsafePutLongOrdered /* (Ljava/lang/Object;JJ)V */)
    UNIMPLEMENTED_CASE(UnsafePutLongVolatile /* (Ljava/lang/Object;JJ)V */)
    UNIMPLEMENTED_CASE(UnsafeGetAndAddInt /* (Ljava/lang/Object;JI)I */)
    UNIMPLEMENTED_CASE(UnsafeGetAndAddLong /* (Ljava/lang/Object;JJ)J */)
    UNIMPLEMENTED_CASE(UnsafeGetAndSetInt /* (Ljava/lang/Object;JI)I */)
    UNIMPLEMENTED_CASE(UnsafeGetAndSetLong /* (Ljava/lang/Object;JJ)J */)
    UNIMPLEMENTED_CASE(UnsafeGetAndSetObject /* (Ljava/lang/Object;JLjava/lang/Object;)Ljava/lang/Object; */)
    UNIMPLEMENTED_CASE(UnsafeLoadFence /* ()V */)
    UNIMPLEMENTED_CASE(UnsafeStoreFence /* ()V */)
    UNIMPLEMENTED_CASE(UnsafeFullFence /* ()V */)
    UNIMPLEMENTED_CASE(ReferenceGetReferent /* ()Ljava/lang/Object; */)
    UNIMPLEMENTED_CASE(IntegerValueOf /* (I)Ljava/lang/Integer; */)
    UNIMPLEMENTED_CASE(ThreadInterrupted /* ()Z */)
    INTRINSIC_CASE(VarHandleFullFence)
    INTRINSIC_CASE(VarHandleAcquireFence)
    INTRINSIC_CASE(VarHandleReleaseFence)
    INTRINSIC_CASE(VarHandleLoadLoadFence)
    INTRINSIC_CASE(VarHandleStoreStoreFence)
    INTRINSIC_CASE(MethodHandleInvokeExact)
    INTRINSIC_CASE(MethodHandleInvoke)
    INTRINSIC_CASE(VarHandleCompareAndExchange)
    INTRINSIC_CASE(VarHandleCompareAndExchangeAcquire)
    INTRINSIC_CASE(VarHandleCompareAndExchangeRelease)
    INTRINSIC_CASE(VarHandleCompareAndSet)
    INTRINSIC_CASE(VarHandleGet)
    INTRINSIC_CASE(VarHandleGetAcquire)
    INTRINSIC_CASE(VarHandleGetAndAdd)
    INTRINSIC_CASE(VarHandleGetAndAddAcquire)
    INTRINSIC_CASE(VarHandleGetAndAddRelease)
    INTRINSIC_CASE(VarHandleGetAndBitwiseAnd)
    INTRINSIC_CASE(VarHandleGetAndBitwiseAndAcquire)
    INTRINSIC_CASE(VarHandleGetAndBitwiseAndRelease)
    INTRINSIC_CASE(VarHandleGetAndBitwiseOr)
    INTRINSIC_CASE(VarHandleGetAndBitwiseOrAcquire)
    INTRINSIC_CASE(VarHandleGetAndBitwiseOrRelease)
    INTRINSIC_CASE(VarHandleGetAndBitwiseXor)
    INTRINSIC_CASE(VarHandleGetAndBitwiseXorAcquire)
    INTRINSIC_CASE(VarHandleGetAndBitwiseXorRelease)
    INTRINSIC_CASE(VarHandleGetAndSet)
    INTRINSIC_CASE(VarHandleGetAndSetAcquire)
    INTRINSIC_CASE(VarHandleGetAndSetRelease)
    INTRINSIC_CASE(VarHandleGetOpaque)
    INTRINSIC_CASE(VarHandleGetVolatile)
    INTRINSIC_CASE(VarHandleSet)
    INTRINSIC_CASE(VarHandleSetOpaque)
    INTRINSIC_CASE(VarHandleSetRelease)
    INTRINSIC_CASE(VarHandleSetVolatile)
    INTRINSIC_CASE(VarHandleWeakCompareAndSet)
    INTRINSIC_CASE(VarHandleWeakCompareAndSetAcquire)
    INTRINSIC_CASE(VarHandleWeakCompareAndSetPlain)
    INTRINSIC_CASE(VarHandleWeakCompareAndSetRelease)
    case Intrinsics::kNone:
      res = false;
      break;
    // Note: no default case to ensure we catch any newly added intrinsics.
  }
  return res;
}

}  // namespace interpreter
}  // namespace art