/* * 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 "compiler/intrinsics_enum.h" #include "dex_instruction.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; } // 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(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(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; */) case Intrinsics::kNone: res = false; break; // Note: no default case to ensure we catch any newly added intrinsics. } return res; } } // namespace interpreter } // namespace art