118 lines
4 KiB
C++
118 lines
4 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_COMPILER_OPTIMIZING_NODES_SHARED_H_
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#define ART_COMPILER_OPTIMIZING_NODES_SHARED_H_
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namespace art {
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class HMultiplyAccumulate : public HExpression<3> {
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public:
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HMultiplyAccumulate(Primitive::Type type,
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InstructionKind op,
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HInstruction* accumulator,
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HInstruction* mul_left,
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HInstruction* mul_right,
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uint32_t dex_pc = kNoDexPc)
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: HExpression(type, SideEffects::None(), dex_pc), op_kind_(op) {
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SetRawInputAt(kInputAccumulatorIndex, accumulator);
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SetRawInputAt(kInputMulLeftIndex, mul_left);
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SetRawInputAt(kInputMulRightIndex, mul_right);
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}
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static constexpr int kInputAccumulatorIndex = 0;
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static constexpr int kInputMulLeftIndex = 1;
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static constexpr int kInputMulRightIndex = 2;
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bool CanBeMoved() const OVERRIDE { return true; }
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bool InstructionDataEquals(HInstruction* other) const OVERRIDE {
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return op_kind_ == other->AsMultiplyAccumulate()->op_kind_;
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}
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InstructionKind GetOpKind() const { return op_kind_; }
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DECLARE_INSTRUCTION(MultiplyAccumulate);
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private:
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// Indicates if this is a MADD or MSUB.
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const InstructionKind op_kind_;
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DISALLOW_COPY_AND_ASSIGN(HMultiplyAccumulate);
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};
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class HBitwiseNegatedRight : public HBinaryOperation {
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public:
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HBitwiseNegatedRight(Primitive::Type result_type,
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InstructionKind op,
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HInstruction* left,
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HInstruction* right,
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uint32_t dex_pc = kNoDexPc)
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: HBinaryOperation(result_type, left, right, SideEffects::None(), dex_pc),
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op_kind_(op) {
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DCHECK(op == HInstruction::kAnd || op == HInstruction::kOr || op == HInstruction::kXor) << op;
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}
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template <typename T, typename U>
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auto Compute(T x, U y) const -> decltype(x & ~y) {
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static_assert(std::is_same<decltype(x & ~y), decltype(x | ~y)>::value &&
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std::is_same<decltype(x & ~y), decltype(x ^ ~y)>::value,
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"Inconsistent negated bitwise types");
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switch (op_kind_) {
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case HInstruction::kAnd:
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return x & ~y;
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case HInstruction::kOr:
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return x | ~y;
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case HInstruction::kXor:
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return x ^ ~y;
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default:
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LOG(FATAL) << "Unreachable";
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UNREACHABLE();
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}
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}
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HConstant* Evaluate(HIntConstant* x, HIntConstant* y) const OVERRIDE {
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return GetBlock()->GetGraph()->GetIntConstant(
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Compute(x->GetValue(), y->GetValue()), GetDexPc());
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}
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HConstant* Evaluate(HLongConstant* x, HLongConstant* y) const OVERRIDE {
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return GetBlock()->GetGraph()->GetLongConstant(
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Compute(x->GetValue(), y->GetValue()), GetDexPc());
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}
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HConstant* Evaluate(HFloatConstant* x ATTRIBUTE_UNUSED,
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HFloatConstant* y ATTRIBUTE_UNUSED) const OVERRIDE {
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LOG(FATAL) << DebugName() << " is not defined for float values";
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UNREACHABLE();
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}
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HConstant* Evaluate(HDoubleConstant* x ATTRIBUTE_UNUSED,
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HDoubleConstant* y ATTRIBUTE_UNUSED) const OVERRIDE {
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LOG(FATAL) << DebugName() << " is not defined for double values";
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UNREACHABLE();
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}
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InstructionKind GetOpKind() const { return op_kind_; }
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DECLARE_INSTRUCTION(BitwiseNegatedRight);
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private:
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// Specifies the bitwise operation, which will be then negated.
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const InstructionKind op_kind_;
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DISALLOW_COPY_AND_ASSIGN(HBitwiseNegatedRight);
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};
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} // namespace art
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#endif // ART_COMPILER_OPTIMIZING_NODES_SHARED_H_
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