compiler/optimizing/scheduler_arm64.cc - LeafOS-Project/android_art - Gitiles

 /*
  * Copyright (C) 2016 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 "scheduler_arm64.h"

 #include "code_generator_utils.h"
 #include "mirror/array-inl.h"
 #include "mirror/string.h"

 namespace art HIDDEN {
 namespace arm64 {

 void SchedulingLatencyVisitorARM64::VisitBinaryOperation(HBinaryOperation* instr) {
   last_visited_latency_ = DataType::IsFloatingPointType(instr->GetResultType())
       ? kArm64FloatingPointOpLatency
       : kArm64IntegerOpLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitBitwiseNegatedRight(
     HBitwiseNegatedRight* ATTRIBUTE_UNUSED) {
   last_visited_latency_ = kArm64IntegerOpLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitDataProcWithShifterOp(
     HDataProcWithShifterOp* ATTRIBUTE_UNUSED) {
   last_visited_latency_ = kArm64DataProcWithShifterOpLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitIntermediateAddress(
     HIntermediateAddress* ATTRIBUTE_UNUSED) {
   // Although the code generated is a simple `add` instruction, we found through empirical results
   // that spacing it from its use in memory accesses was beneficial.
   last_visited_latency_ = kArm64IntegerOpLatency + 2;
 }

 void SchedulingLatencyVisitorARM64::VisitIntermediateAddressIndex(
     HIntermediateAddressIndex* instr ATTRIBUTE_UNUSED) {
   // Although the code generated is a simple `add` instruction, we found through empirical results
   // that spacing it from its use in memory accesses was beneficial.
   last_visited_latency_ = kArm64DataProcWithShifterOpLatency + 2;
 }

 void SchedulingLatencyVisitorARM64::VisitMultiplyAccumulate(HMultiplyAccumulate* ATTRIBUTE_UNUSED) {
   last_visited_latency_ = kArm64MulIntegerLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitArrayGet(HArrayGet* instruction) {
   if (!instruction->GetArray()->IsIntermediateAddress()) {
     // Take the intermediate address computation into account.
     last_visited_internal_latency_ = kArm64IntegerOpLatency;
   }
   last_visited_latency_ = kArm64MemoryLoadLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitArrayLength(HArrayLength* ATTRIBUTE_UNUSED) {
   last_visited_latency_ = kArm64MemoryLoadLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitArraySet(HArraySet* ATTRIBUTE_UNUSED) {
   last_visited_latency_ = kArm64MemoryStoreLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitBoundsCheck(HBoundsCheck* ATTRIBUTE_UNUSED) {
   last_visited_internal_latency_ = kArm64IntegerOpLatency;
   // Users do not use any data results.
   last_visited_latency_ = 0;
 }

 void SchedulingLatencyVisitorARM64::VisitDiv(HDiv* instr) {
   DataType::Type type = instr->GetResultType();
   switch (type) {
     case DataType::Type::kFloat32:
       last_visited_latency_ = kArm64DivFloatLatency;
       break;
     case DataType::Type::kFloat64:
       last_visited_latency_ = kArm64DivDoubleLatency;
       break;
     default:
       // Follow the code path used by code generation.
       if (instr->GetRight()->IsConstant()) {
         int64_t imm = Int64FromConstant(instr->GetRight()->AsConstant());
         if (imm == 0) {
           last_visited_internal_latency_ = 0;
           last_visited_latency_ = 0;
         } else if (imm == 1 || imm == -1) {
           last_visited_internal_latency_ = 0;
           last_visited_latency_ = kArm64IntegerOpLatency;
         } else if (IsPowerOfTwo(AbsOrMin(imm))) {
           last_visited_internal_latency_ = 4 * kArm64IntegerOpLatency;
           last_visited_latency_ = kArm64IntegerOpLatency;
         } else {
           DCHECK(imm <= -2 || imm >= 2);
           last_visited_internal_latency_ = 4 * kArm64IntegerOpLatency;
           last_visited_latency_ = kArm64MulIntegerLatency;
         }
       } else {
         last_visited_latency_ = kArm64DivIntegerLatency;
       }
       break;
   }
 }

 void SchedulingLatencyVisitorARM64::VisitInstanceFieldGet(HInstanceFieldGet* ATTRIBUTE_UNUSED) {
   last_visited_latency_ = kArm64MemoryLoadLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitInstanceOf(HInstanceOf* ATTRIBUTE_UNUSED) {
   last_visited_internal_latency_ = kArm64CallInternalLatency;
   last_visited_latency_ = kArm64IntegerOpLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitInvoke(HInvoke* ATTRIBUTE_UNUSED) {
   last_visited_internal_latency_ = kArm64CallInternalLatency;
   last_visited_latency_ = kArm64CallLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitLoadString(HLoadString* ATTRIBUTE_UNUSED) {
   last_visited_internal_latency_ = kArm64LoadStringInternalLatency;
   last_visited_latency_ = kArm64MemoryLoadLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitMul(HMul* instr) {
   last_visited_latency_ = DataType::IsFloatingPointType(instr->GetResultType())
       ? kArm64MulFloatingPointLatency
       : kArm64MulIntegerLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitNewArray(HNewArray* ATTRIBUTE_UNUSED) {
   last_visited_internal_latency_ = kArm64IntegerOpLatency + kArm64CallInternalLatency;
   last_visited_latency_ = kArm64CallLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitNewInstance(HNewInstance* instruction) {
   if (instruction->IsStringAlloc()) {
     last_visited_internal_latency_ = 2 + kArm64MemoryLoadLatency + kArm64CallInternalLatency;
   } else {
     last_visited_internal_latency_ = kArm64CallInternalLatency;
   }
   last_visited_latency_ = kArm64CallLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitRem(HRem* instruction) {
   if (DataType::IsFloatingPointType(instruction->GetResultType())) {
     last_visited_internal_latency_ = kArm64CallInternalLatency;
     last_visited_latency_ = kArm64CallLatency;
   } else {
     // Follow the code path used by code generation.
     if (instruction->GetRight()->IsConstant()) {
       int64_t imm = Int64FromConstant(instruction->GetRight()->AsConstant());
       if (imm == 0) {
         last_visited_internal_latency_ = 0;
         last_visited_latency_ = 0;
       } else if (imm == 1 || imm == -1) {
         last_visited_internal_latency_ = 0;
         last_visited_latency_ = kArm64IntegerOpLatency;
       } else if (IsPowerOfTwo(AbsOrMin(imm))) {
         last_visited_internal_latency_ = 4 * kArm64IntegerOpLatency;
         last_visited_latency_ = kArm64IntegerOpLatency;
       } else {
         DCHECK(imm <= -2 || imm >= 2);
         last_visited_internal_latency_ = 4 * kArm64IntegerOpLatency;
         last_visited_latency_ = kArm64MulIntegerLatency;
       }
     } else {
       last_visited_internal_latency_ = kArm64DivIntegerLatency;
       last_visited_latency_ = kArm64MulIntegerLatency;
     }
   }
 }

 void SchedulingLatencyVisitorARM64::VisitStaticFieldGet(HStaticFieldGet* ATTRIBUTE_UNUSED) {
   last_visited_latency_ = kArm64MemoryLoadLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitSuspendCheck(HSuspendCheck* instruction) {
   HBasicBlock* block = instruction->GetBlock();
   DCHECK_IMPLIES(block->GetLoopInformation() == nullptr,
                  block->IsEntryBlock() && instruction->GetNext()->IsGoto());
   // Users do not use any data results.
   last_visited_latency_ = 0;
 }

 void SchedulingLatencyVisitorARM64::VisitTypeConversion(HTypeConversion* instr) {
   if (DataType::IsFloatingPointType(instr->GetResultType()) ||
       DataType::IsFloatingPointType(instr->GetInputType())) {
     last_visited_latency_ = kArm64TypeConversionFloatingPointIntegerLatency;
   } else {
     last_visited_latency_ = kArm64IntegerOpLatency;
   }
 }

 void SchedulingLatencyVisitorARM64::HandleSimpleArithmeticSIMD(HVecOperation *instr) {
   if (DataType::IsFloatingPointType(instr->GetPackedType())) {
     last_visited_latency_ = kArm64SIMDFloatingPointOpLatency;
   } else {
     last_visited_latency_ = kArm64SIMDIntegerOpLatency;
   }
 }

 void SchedulingLatencyVisitorARM64::VisitVecReplicateScalar(
     HVecReplicateScalar* instr ATTRIBUTE_UNUSED) {
   last_visited_latency_ = kArm64SIMDReplicateOpLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitVecExtractScalar(HVecExtractScalar* instr) {
   HandleSimpleArithmeticSIMD(instr);
 }

 void SchedulingLatencyVisitorARM64::VisitVecReduce(HVecReduce* instr) {
   HandleSimpleArithmeticSIMD(instr);
 }

 void SchedulingLatencyVisitorARM64::VisitVecCnv(HVecCnv* instr ATTRIBUTE_UNUSED) {
   last_visited_latency_ = kArm64SIMDTypeConversionInt2FPLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitVecNeg(HVecNeg* instr) {
   HandleSimpleArithmeticSIMD(instr);
 }

 void SchedulingLatencyVisitorARM64::VisitVecAbs(HVecAbs* instr) {
   HandleSimpleArithmeticSIMD(instr);
 }

 void SchedulingLatencyVisitorARM64::VisitVecNot(HVecNot* instr) {
   if (instr->GetPackedType() == DataType::Type::kBool) {
     last_visited_internal_latency_ = kArm64SIMDIntegerOpLatency;
   }
   last_visited_latency_ = kArm64SIMDIntegerOpLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitVecAdd(HVecAdd* instr) {
   HandleSimpleArithmeticSIMD(instr);
 }

 void SchedulingLatencyVisitorARM64::VisitVecHalvingAdd(HVecHalvingAdd* instr) {
   HandleSimpleArithmeticSIMD(instr);
 }

 void SchedulingLatencyVisitorARM64::VisitVecSub(HVecSub* instr) {
   HandleSimpleArithmeticSIMD(instr);
 }

 void SchedulingLatencyVisitorARM64::VisitVecMul(HVecMul* instr) {
   if (DataType::IsFloatingPointType(instr->GetPackedType())) {
     last_visited_latency_ = kArm64SIMDMulFloatingPointLatency;
   } else {
     last_visited_latency_ = kArm64SIMDMulIntegerLatency;
   }
 }

 void SchedulingLatencyVisitorARM64::VisitVecDiv(HVecDiv* instr) {
   if (instr->GetPackedType() == DataType::Type::kFloat32) {
     last_visited_latency_ = kArm64SIMDDivFloatLatency;
   } else {
     DCHECK(instr->GetPackedType() == DataType::Type::kFloat64);
     last_visited_latency_ = kArm64SIMDDivDoubleLatency;
   }
 }

 void SchedulingLatencyVisitorARM64::VisitVecMin(HVecMin* instr) {
   HandleSimpleArithmeticSIMD(instr);
 }

 void SchedulingLatencyVisitorARM64::VisitVecMax(HVecMax* instr) {
   HandleSimpleArithmeticSIMD(instr);
 }

 void SchedulingLatencyVisitorARM64::VisitVecAnd(HVecAnd* instr ATTRIBUTE_UNUSED) {
   last_visited_latency_ = kArm64SIMDIntegerOpLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitVecAndNot(HVecAndNot* instr ATTRIBUTE_UNUSED) {
   last_visited_latency_ = kArm64SIMDIntegerOpLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitVecOr(HVecOr* instr ATTRIBUTE_UNUSED) {
   last_visited_latency_ = kArm64SIMDIntegerOpLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitVecXor(HVecXor* instr ATTRIBUTE_UNUSED) {
   last_visited_latency_ = kArm64SIMDIntegerOpLatency;
 }

 void SchedulingLatencyVisitorARM64::VisitVecShl(HVecShl* instr) {
   HandleSimpleArithmeticSIMD(instr);
 }

 void SchedulingLatencyVisitorARM64::VisitVecShr(HVecShr* instr) {
   HandleSimpleArithmeticSIMD(instr);
 }

 void SchedulingLatencyVisitorARM64::VisitVecUShr(HVecUShr* instr) {
   HandleSimpleArithmeticSIMD(instr);
 }

 void SchedulingLatencyVisitorARM64::VisitVecSetScalars(HVecSetScalars* instr) {
   HandleSimpleArithmeticSIMD(instr);
 }

 void SchedulingLatencyVisitorARM64::VisitVecMultiplyAccumulate(
     HVecMultiplyAccumulate* instr ATTRIBUTE_UNUSED) {
   last_visited_latency_ = kArm64SIMDMulIntegerLatency;
 }

 void SchedulingLatencyVisitorARM64::HandleVecAddress(
     HVecMemoryOperation* instruction,
     size_t size ATTRIBUTE_UNUSED) {
   HInstruction* index = instruction->InputAt(1);
   if (!index->IsConstant()) {
     last_visited_internal_latency_ += kArm64DataProcWithShifterOpLatency;
   }
 }

 void SchedulingLatencyVisitorARM64::VisitVecLoad(HVecLoad* instr) {
   last_visited_internal_latency_ = 0;
   size_t size = DataType::Size(instr->GetPackedType());

   if (instr->GetPackedType() == DataType::Type::kUint16
       && mirror::kUseStringCompression
       && instr->IsStringCharAt()) {
     // Set latencies for the uncompressed case.
     last_visited_internal_latency_ += kArm64MemoryLoadLatency + kArm64BranchLatency;
     HandleVecAddress(instr, size);
     last_visited_latency_ = kArm64SIMDMemoryLoadLatency;
   } else {
     HandleVecAddress(instr, size);
     last_visited_latency_ = kArm64SIMDMemoryLoadLatency;
   }
 }

 void SchedulingLatencyVisitorARM64::VisitVecStore(HVecStore* instr) {
   last_visited_internal_latency_ = 0;
   size_t size = DataType::Size(instr->GetPackedType());
   HandleVecAddress(instr, size);
   last_visited_latency_ = kArm64SIMDMemoryStoreLatency;
 }

 }  // namespace arm64
 }  // namespace art
	/*
	* Copyright (C) 2016 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 "scheduler_arm64.h"

	#include "code_generator_utils.h"
	#include "mirror/array-inl.h"
	#include "mirror/string.h"

	namespace art HIDDEN {
	namespace arm64 {

	void SchedulingLatencyVisitorARM64::VisitBinaryOperation(HBinaryOperation* instr) {
	last_visited_latency_ = DataType::IsFloatingPointType(instr->GetResultType())
	? kArm64FloatingPointOpLatency
	: kArm64IntegerOpLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitBitwiseNegatedRight(
	HBitwiseNegatedRight* ATTRIBUTE_UNUSED) {
	last_visited_latency_ = kArm64IntegerOpLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitDataProcWithShifterOp(
	HDataProcWithShifterOp* ATTRIBUTE_UNUSED) {
	last_visited_latency_ = kArm64DataProcWithShifterOpLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitIntermediateAddress(
	HIntermediateAddress* ATTRIBUTE_UNUSED) {
	// Although the code generated is a simple `add` instruction, we found through empirical results
	// that spacing it from its use in memory accesses was beneficial.
	last_visited_latency_ = kArm64IntegerOpLatency + 2;
	}

	void SchedulingLatencyVisitorARM64::VisitIntermediateAddressIndex(
	HIntermediateAddressIndex* instr ATTRIBUTE_UNUSED) {
	// Although the code generated is a simple `add` instruction, we found through empirical results
	// that spacing it from its use in memory accesses was beneficial.
	last_visited_latency_ = kArm64DataProcWithShifterOpLatency + 2;
	}

	void SchedulingLatencyVisitorARM64::VisitMultiplyAccumulate(HMultiplyAccumulate* ATTRIBUTE_UNUSED) {
	last_visited_latency_ = kArm64MulIntegerLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitArrayGet(HArrayGet* instruction) {
	if (!instruction->GetArray()->IsIntermediateAddress()) {
	// Take the intermediate address computation into account.
	last_visited_internal_latency_ = kArm64IntegerOpLatency;
	}
	last_visited_latency_ = kArm64MemoryLoadLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitArrayLength(HArrayLength* ATTRIBUTE_UNUSED) {
	last_visited_latency_ = kArm64MemoryLoadLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitArraySet(HArraySet* ATTRIBUTE_UNUSED) {
	last_visited_latency_ = kArm64MemoryStoreLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitBoundsCheck(HBoundsCheck* ATTRIBUTE_UNUSED) {
	last_visited_internal_latency_ = kArm64IntegerOpLatency;
	// Users do not use any data results.
	last_visited_latency_ = 0;
	}

	void SchedulingLatencyVisitorARM64::VisitDiv(HDiv* instr) {
	DataType::Type type = instr->GetResultType();
	switch (type) {
	case DataType::Type::kFloat32:
	last_visited_latency_ = kArm64DivFloatLatency;
	break;
	case DataType::Type::kFloat64:
	last_visited_latency_ = kArm64DivDoubleLatency;
	break;
	default:
	// Follow the code path used by code generation.
	if (instr->GetRight()->IsConstant()) {
	int64_t imm = Int64FromConstant(instr->GetRight()->AsConstant());
	if (imm == 0) {
	last_visited_internal_latency_ = 0;
	last_visited_latency_ = 0;
	} else if (imm == 1 \|\| imm == -1) {
	last_visited_internal_latency_ = 0;
	last_visited_latency_ = kArm64IntegerOpLatency;
	} else if (IsPowerOfTwo(AbsOrMin(imm))) {
	last_visited_internal_latency_ = 4 * kArm64IntegerOpLatency;
	last_visited_latency_ = kArm64IntegerOpLatency;
	} else {
	DCHECK(imm <= -2 \|\| imm >= 2);
	last_visited_internal_latency_ = 4 * kArm64IntegerOpLatency;
	last_visited_latency_ = kArm64MulIntegerLatency;
	}
	} else {
	last_visited_latency_ = kArm64DivIntegerLatency;
	}
	break;
	}
	}

	void SchedulingLatencyVisitorARM64::VisitInstanceFieldGet(HInstanceFieldGet* ATTRIBUTE_UNUSED) {
	last_visited_latency_ = kArm64MemoryLoadLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitInstanceOf(HInstanceOf* ATTRIBUTE_UNUSED) {
	last_visited_internal_latency_ = kArm64CallInternalLatency;
	last_visited_latency_ = kArm64IntegerOpLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitInvoke(HInvoke* ATTRIBUTE_UNUSED) {
	last_visited_internal_latency_ = kArm64CallInternalLatency;
	last_visited_latency_ = kArm64CallLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitLoadString(HLoadString* ATTRIBUTE_UNUSED) {
	last_visited_internal_latency_ = kArm64LoadStringInternalLatency;
	last_visited_latency_ = kArm64MemoryLoadLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitMul(HMul* instr) {
	last_visited_latency_ = DataType::IsFloatingPointType(instr->GetResultType())
	? kArm64MulFloatingPointLatency
	: kArm64MulIntegerLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitNewArray(HNewArray* ATTRIBUTE_UNUSED) {
	last_visited_internal_latency_ = kArm64IntegerOpLatency + kArm64CallInternalLatency;
	last_visited_latency_ = kArm64CallLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitNewInstance(HNewInstance* instruction) {
	if (instruction->IsStringAlloc()) {
	last_visited_internal_latency_ = 2 + kArm64MemoryLoadLatency + kArm64CallInternalLatency;
	} else {
	last_visited_internal_latency_ = kArm64CallInternalLatency;
	}
	last_visited_latency_ = kArm64CallLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitRem(HRem* instruction) {
	if (DataType::IsFloatingPointType(instruction->GetResultType())) {
	last_visited_internal_latency_ = kArm64CallInternalLatency;
	last_visited_latency_ = kArm64CallLatency;
	} else {
	// Follow the code path used by code generation.
	if (instruction->GetRight()->IsConstant()) {
	int64_t imm = Int64FromConstant(instruction->GetRight()->AsConstant());
	if (imm == 0) {
	last_visited_internal_latency_ = 0;
	last_visited_latency_ = 0;
	} else if (imm == 1 \|\| imm == -1) {
	last_visited_internal_latency_ = 0;
	last_visited_latency_ = kArm64IntegerOpLatency;
	} else if (IsPowerOfTwo(AbsOrMin(imm))) {
	last_visited_internal_latency_ = 4 * kArm64IntegerOpLatency;
	last_visited_latency_ = kArm64IntegerOpLatency;
	} else {
	DCHECK(imm <= -2 \|\| imm >= 2);
	last_visited_internal_latency_ = 4 * kArm64IntegerOpLatency;
	last_visited_latency_ = kArm64MulIntegerLatency;
	}
	} else {
	last_visited_internal_latency_ = kArm64DivIntegerLatency;
	last_visited_latency_ = kArm64MulIntegerLatency;
	}
	}
	}

	void SchedulingLatencyVisitorARM64::VisitStaticFieldGet(HStaticFieldGet* ATTRIBUTE_UNUSED) {
	last_visited_latency_ = kArm64MemoryLoadLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitSuspendCheck(HSuspendCheck* instruction) {
	HBasicBlock* block = instruction->GetBlock();
	DCHECK_IMPLIES(block->GetLoopInformation() == nullptr,
	block->IsEntryBlock() && instruction->GetNext()->IsGoto());
	// Users do not use any data results.
	last_visited_latency_ = 0;
	}

	void SchedulingLatencyVisitorARM64::VisitTypeConversion(HTypeConversion* instr) {
	if (DataType::IsFloatingPointType(instr->GetResultType()) \|\|
	DataType::IsFloatingPointType(instr->GetInputType())) {
	last_visited_latency_ = kArm64TypeConversionFloatingPointIntegerLatency;
	} else {
	last_visited_latency_ = kArm64IntegerOpLatency;
	}
	}

	void SchedulingLatencyVisitorARM64::HandleSimpleArithmeticSIMD(HVecOperation *instr) {
	if (DataType::IsFloatingPointType(instr->GetPackedType())) {
	last_visited_latency_ = kArm64SIMDFloatingPointOpLatency;
	} else {
	last_visited_latency_ = kArm64SIMDIntegerOpLatency;
	}
	}

	void SchedulingLatencyVisitorARM64::VisitVecReplicateScalar(
	HVecReplicateScalar* instr ATTRIBUTE_UNUSED) {
	last_visited_latency_ = kArm64SIMDReplicateOpLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitVecExtractScalar(HVecExtractScalar* instr) {
	HandleSimpleArithmeticSIMD(instr);
	}

	void SchedulingLatencyVisitorARM64::VisitVecReduce(HVecReduce* instr) {
	HandleSimpleArithmeticSIMD(instr);
	}

	void SchedulingLatencyVisitorARM64::VisitVecCnv(HVecCnv* instr ATTRIBUTE_UNUSED) {
	last_visited_latency_ = kArm64SIMDTypeConversionInt2FPLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitVecNeg(HVecNeg* instr) {
	HandleSimpleArithmeticSIMD(instr);
	}

	void SchedulingLatencyVisitorARM64::VisitVecAbs(HVecAbs* instr) {
	HandleSimpleArithmeticSIMD(instr);
	}

	void SchedulingLatencyVisitorARM64::VisitVecNot(HVecNot* instr) {
	if (instr->GetPackedType() == DataType::Type::kBool) {
	last_visited_internal_latency_ = kArm64SIMDIntegerOpLatency;
	}
	last_visited_latency_ = kArm64SIMDIntegerOpLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitVecAdd(HVecAdd* instr) {
	HandleSimpleArithmeticSIMD(instr);
	}

	void SchedulingLatencyVisitorARM64::VisitVecHalvingAdd(HVecHalvingAdd* instr) {
	HandleSimpleArithmeticSIMD(instr);
	}

	void SchedulingLatencyVisitorARM64::VisitVecSub(HVecSub* instr) {
	HandleSimpleArithmeticSIMD(instr);
	}

	void SchedulingLatencyVisitorARM64::VisitVecMul(HVecMul* instr) {
	if (DataType::IsFloatingPointType(instr->GetPackedType())) {
	last_visited_latency_ = kArm64SIMDMulFloatingPointLatency;
	} else {
	last_visited_latency_ = kArm64SIMDMulIntegerLatency;
	}
	}

	void SchedulingLatencyVisitorARM64::VisitVecDiv(HVecDiv* instr) {
	if (instr->GetPackedType() == DataType::Type::kFloat32) {
	last_visited_latency_ = kArm64SIMDDivFloatLatency;
	} else {
	DCHECK(instr->GetPackedType() == DataType::Type::kFloat64);
	last_visited_latency_ = kArm64SIMDDivDoubleLatency;
	}
	}

	void SchedulingLatencyVisitorARM64::VisitVecMin(HVecMin* instr) {
	HandleSimpleArithmeticSIMD(instr);
	}

	void SchedulingLatencyVisitorARM64::VisitVecMax(HVecMax* instr) {
	HandleSimpleArithmeticSIMD(instr);
	}

	void SchedulingLatencyVisitorARM64::VisitVecAnd(HVecAnd* instr ATTRIBUTE_UNUSED) {
	last_visited_latency_ = kArm64SIMDIntegerOpLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitVecAndNot(HVecAndNot* instr ATTRIBUTE_UNUSED) {
	last_visited_latency_ = kArm64SIMDIntegerOpLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitVecOr(HVecOr* instr ATTRIBUTE_UNUSED) {
	last_visited_latency_ = kArm64SIMDIntegerOpLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitVecXor(HVecXor* instr ATTRIBUTE_UNUSED) {
	last_visited_latency_ = kArm64SIMDIntegerOpLatency;
	}

	void SchedulingLatencyVisitorARM64::VisitVecShl(HVecShl* instr) {
	HandleSimpleArithmeticSIMD(instr);
	}

	void SchedulingLatencyVisitorARM64::VisitVecShr(HVecShr* instr) {
	HandleSimpleArithmeticSIMD(instr);
	}

	void SchedulingLatencyVisitorARM64::VisitVecUShr(HVecUShr* instr) {
	HandleSimpleArithmeticSIMD(instr);
	}

	void SchedulingLatencyVisitorARM64::VisitVecSetScalars(HVecSetScalars* instr) {
	HandleSimpleArithmeticSIMD(instr);
	}

	void SchedulingLatencyVisitorARM64::VisitVecMultiplyAccumulate(
	HVecMultiplyAccumulate* instr ATTRIBUTE_UNUSED) {
	last_visited_latency_ = kArm64SIMDMulIntegerLatency;
	}

	void SchedulingLatencyVisitorARM64::HandleVecAddress(
	HVecMemoryOperation* instruction,
	size_t size ATTRIBUTE_UNUSED) {
	HInstruction* index = instruction->InputAt(1);
	if (!index->IsConstant()) {
	last_visited_internal_latency_ += kArm64DataProcWithShifterOpLatency;
	}
	}

	void SchedulingLatencyVisitorARM64::VisitVecLoad(HVecLoad* instr) {
	last_visited_internal_latency_ = 0;
	size_t size = DataType::Size(instr->GetPackedType());

	if (instr->GetPackedType() == DataType::Type::kUint16
	&& mirror::kUseStringCompression
	&& instr->IsStringCharAt()) {
	// Set latencies for the uncompressed case.
	last_visited_internal_latency_ += kArm64MemoryLoadLatency + kArm64BranchLatency;
	HandleVecAddress(instr, size);
	last_visited_latency_ = kArm64SIMDMemoryLoadLatency;
	} else {
	HandleVecAddress(instr, size);
	last_visited_latency_ = kArm64SIMDMemoryLoadLatency;
	}
	}

	void SchedulingLatencyVisitorARM64::VisitVecStore(HVecStore* instr) {
	last_visited_internal_latency_ = 0;
	size_t size = DataType::Size(instr->GetPackedType());
	HandleVecAddress(instr, size);
	last_visited_latency_ = kArm64SIMDMemoryStoreLatency;
	}

	} // namespace arm64
	} // namespace art