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/*
* Copyright (C) 2015 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.
*/
#ifndef ART_COMPILER_OPTIMIZING_NODES_X86_H_
#define ART_COMPILER_OPTIMIZING_NODES_X86_H_
namespace art {
// Compute the address of the method for X86 Constant area support.
class HX86ComputeBaseMethodAddress FINAL : public HExpression<0> {
public:
// Treat the value as an int32_t, but it is really a 32 bit native pointer.
HX86ComputeBaseMethodAddress()
: HExpression(kX86ComputeBaseMethodAddress,
DataType::Type::kInt32,
SideEffects::None(),
kNoDexPc) {
}
bool CanBeMoved() const OVERRIDE { return true; }
DECLARE_INSTRUCTION(X86ComputeBaseMethodAddress);
protected:
DEFAULT_COPY_CONSTRUCTOR(X86ComputeBaseMethodAddress);
};
// Load a constant value from the constant table.
class HX86LoadFromConstantTable FINAL : public HExpression<2> {
public:
HX86LoadFromConstantTable(HX86ComputeBaseMethodAddress* method_base,
HConstant* constant)
: HExpression(kX86LoadFromConstantTable,
constant->GetType(),
SideEffects::None(),
kNoDexPc) {
SetRawInputAt(0, method_base);
SetRawInputAt(1, constant);
}
HX86ComputeBaseMethodAddress* GetBaseMethodAddress() const {
return InputAt(0)->AsX86ComputeBaseMethodAddress();
}
HConstant* GetConstant() const {
return InputAt(1)->AsConstant();
}
DECLARE_INSTRUCTION(X86LoadFromConstantTable);
protected:
DEFAULT_COPY_CONSTRUCTOR(X86LoadFromConstantTable);
};
// Version of HNeg with access to the constant table for FP types.
class HX86FPNeg FINAL : public HExpression<2> {
public:
HX86FPNeg(DataType::Type result_type,
HInstruction* input,
HX86ComputeBaseMethodAddress* method_base,
uint32_t dex_pc)
: HExpression(kX86FPNeg, result_type, SideEffects::None(), dex_pc) {
DCHECK(DataType::IsFloatingPointType(result_type));
SetRawInputAt(0, input);
SetRawInputAt(1, method_base);
}
HX86ComputeBaseMethodAddress* GetBaseMethodAddress() const {
return InputAt(1)->AsX86ComputeBaseMethodAddress();
}
DECLARE_INSTRUCTION(X86FPNeg);
protected:
DEFAULT_COPY_CONSTRUCTOR(X86FPNeg);
};
// X86 version of HPackedSwitch that holds a pointer to the base method address.
class HX86PackedSwitch FINAL : public HExpression<2> {
public:
HX86PackedSwitch(int32_t start_value,
int32_t num_entries,
HInstruction* input,
HX86ComputeBaseMethodAddress* method_base,
uint32_t dex_pc)
: HExpression(kX86PackedSwitch, SideEffects::None(), dex_pc),
start_value_(start_value),
num_entries_(num_entries) {
SetRawInputAt(0, input);
SetRawInputAt(1, method_base);
}
bool IsControlFlow() const OVERRIDE { return true; }
int32_t GetStartValue() const { return start_value_; }
int32_t GetNumEntries() const { return num_entries_; }
HX86ComputeBaseMethodAddress* GetBaseMethodAddress() const {
return InputAt(1)->AsX86ComputeBaseMethodAddress();
}
HBasicBlock* GetDefaultBlock() const {
// Last entry is the default block.
return GetBlock()->GetSuccessors()[num_entries_];
}
DECLARE_INSTRUCTION(X86PackedSwitch);
protected:
DEFAULT_COPY_CONSTRUCTOR(X86PackedSwitch);
private:
const int32_t start_value_;
const int32_t num_entries_;
};
} // namespace art
#endif // ART_COMPILER_OPTIMIZING_NODES_X86_H_
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