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/*
* 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.
*/
#ifndef ART_COMPILER_OPTIMIZING_COMMON_ARM_H_
#define ART_COMPILER_OPTIMIZING_COMMON_ARM_H_
#include "instruction_simplifier_shared.h"
#include "locations.h"
#include "nodes.h"
#include "utils/arm/constants_arm.h"
// TODO(VIXL): Make VIXL compile with -Wshadow.
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wshadow"
#include "aarch32/macro-assembler-aarch32.h"
#pragma GCC diagnostic pop
namespace art {
using helpers::HasShifterOperand;
namespace arm {
namespace helpers {
static_assert(vixl::aarch32::kSpCode == SP, "vixl::aarch32::kSpCode must equal ART's SP");
inline vixl::aarch32::Register HighRegisterFrom(Location location) {
DCHECK(location.IsRegisterPair()) << location;
return vixl::aarch32::Register(location.AsRegisterPairHigh<vixl::aarch32::Register>());
}
inline vixl::aarch32::DRegister HighDRegisterFrom(Location location) {
DCHECK(location.IsFpuRegisterPair()) << location;
return vixl::aarch32::DRegister(location.AsFpuRegisterPairHigh<vixl::aarch32::DRegister>());
}
inline vixl::aarch32::Register LowRegisterFrom(Location location) {
DCHECK(location.IsRegisterPair()) << location;
return vixl::aarch32::Register(location.AsRegisterPairLow<vixl::aarch32::Register>());
}
inline vixl::aarch32::SRegister LowSRegisterFrom(Location location) {
DCHECK(location.IsFpuRegisterPair()) << location;
return vixl::aarch32::SRegister(location.AsFpuRegisterPairLow<vixl::aarch32::SRegister>());
}
inline vixl::aarch32::SRegister HighSRegisterFrom(Location location) {
DCHECK(location.IsFpuRegisterPair()) << location;
return vixl::aarch32::SRegister(location.AsFpuRegisterPairHigh<vixl::aarch32::SRegister>());
}
inline vixl::aarch32::Register RegisterFrom(Location location) {
DCHECK(location.IsRegister()) << location;
return vixl::aarch32::Register(location.reg());
}
inline vixl::aarch32::Register RegisterFrom(Location location, DataType::Type type) {
DCHECK(type != DataType::Type::kVoid && !DataType::IsFloatingPointType(type)) << type;
return RegisterFrom(location);
}
inline vixl::aarch32::DRegister DRegisterFrom(Location location) {
DCHECK(location.IsFpuRegisterPair()) << location;
int reg_code = location.low();
DCHECK_EQ(reg_code % 2, 0) << reg_code;
return vixl::aarch32::DRegister(reg_code / 2);
}
inline vixl::aarch32::SRegister SRegisterFrom(Location location) {
DCHECK(location.IsFpuRegister()) << location;
return vixl::aarch32::SRegister(location.reg());
}
inline vixl::aarch32::SRegister OutputSRegister(HInstruction* instr) {
DataType::Type type = instr->GetType();
DCHECK_EQ(type, DataType::Type::kFloat32) << type;
return SRegisterFrom(instr->GetLocations()->Out());
}
inline vixl::aarch32::DRegister OutputDRegister(HInstruction* instr) {
DataType::Type type = instr->GetType();
DCHECK_EQ(type, DataType::Type::kFloat64) << type;
return DRegisterFrom(instr->GetLocations()->Out());
}
inline vixl::aarch32::VRegister OutputVRegister(HInstruction* instr) {
DataType::Type type = instr->GetType();
if (type == DataType::Type::kFloat32) {
return OutputSRegister(instr);
} else {
return OutputDRegister(instr);
}
}
inline vixl::aarch32::SRegister InputSRegisterAt(HInstruction* instr, int input_index) {
DataType::Type type = instr->InputAt(input_index)->GetType();
DCHECK_EQ(type, DataType::Type::kFloat32) << type;
return SRegisterFrom(instr->GetLocations()->InAt(input_index));
}
inline vixl::aarch32::DRegister InputDRegisterAt(HInstruction* instr, int input_index) {
DataType::Type type = instr->InputAt(input_index)->GetType();
DCHECK_EQ(type, DataType::Type::kFloat64) << type;
return DRegisterFrom(instr->GetLocations()->InAt(input_index));
}
inline vixl::aarch32::VRegister InputVRegisterAt(HInstruction* instr, int input_index) {
DataType::Type type = instr->InputAt(input_index)->GetType();
if (type == DataType::Type::kFloat32) {
return InputSRegisterAt(instr, input_index);
} else {
DCHECK_EQ(type, DataType::Type::kFloat64);
return InputDRegisterAt(instr, input_index);
}
}
inline vixl::aarch32::VRegister InputVRegister(HInstruction* instr) {
DCHECK_EQ(instr->InputCount(), 1u);
return InputVRegisterAt(instr, 0);
}
inline vixl::aarch32::Register OutputRegister(HInstruction* instr) {
return RegisterFrom(instr->GetLocations()->Out(), instr->GetType());
}
inline vixl::aarch32::Register InputRegisterAt(HInstruction* instr, int input_index) {
return RegisterFrom(instr->GetLocations()->InAt(input_index),
instr->InputAt(input_index)->GetType());
}
inline vixl::aarch32::Register InputRegister(HInstruction* instr) {
DCHECK_EQ(instr->InputCount(), 1u);
return InputRegisterAt(instr, 0);
}
inline vixl::aarch32::DRegister DRegisterFromS(vixl::aarch32::SRegister s) {
vixl::aarch32::DRegister d = vixl::aarch32::DRegister(s.GetCode() / 2);
DCHECK(s.Is(d.GetLane(0)) || s.Is(d.GetLane(1)));
return d;
}
inline int32_t Int32ConstantFrom(HInstruction* instr) {
if (instr->IsIntConstant()) {
return instr->AsIntConstant()->GetValue();
} else if (instr->IsNullConstant()) {
return 0;
} else {
DCHECK(instr->IsLongConstant()) << instr->DebugName();
const int64_t ret = instr->AsLongConstant()->GetValue();
DCHECK_GE(ret, std::numeric_limits<int32_t>::min());
DCHECK_LE(ret, std::numeric_limits<int32_t>::max());
return ret;
}
}
inline int32_t Int32ConstantFrom(Location location) {
return Int32ConstantFrom(location.GetConstant());
}
inline int64_t Int64ConstantFrom(Location location) {
HConstant* instr = location.GetConstant();
if (instr->IsIntConstant()) {
return instr->AsIntConstant()->GetValue();
} else if (instr->IsNullConstant()) {
return 0;
} else {
DCHECK(instr->IsLongConstant()) << instr->DebugName();
return instr->AsLongConstant()->GetValue();
}
}
inline uint64_t Uint64ConstantFrom(HInstruction* instr) {
DCHECK(instr->IsConstant()) << instr->DebugName();
return instr->AsConstant()->GetValueAsUint64();
}
inline vixl::aarch32::Operand OperandFrom(Location location, DataType::Type type) {
if (location.IsRegister()) {
return vixl::aarch32::Operand(RegisterFrom(location, type));
} else {
return vixl::aarch32::Operand(Int32ConstantFrom(location));
}
}
inline vixl::aarch32::Operand InputOperandAt(HInstruction* instr, int input_index) {
return OperandFrom(instr->GetLocations()->InAt(input_index),
instr->InputAt(input_index)->GetType());
}
inline Location LocationFrom(const vixl::aarch32::Register& reg) {
return Location::RegisterLocation(reg.GetCode());
}
inline Location LocationFrom(const vixl::aarch32::SRegister& reg) {
return Location::FpuRegisterLocation(reg.GetCode());
}
inline Location LocationFrom(const vixl::aarch32::Register& low,
const vixl::aarch32::Register& high) {
return Location::RegisterPairLocation(low.GetCode(), high.GetCode());
}
inline Location LocationFrom(const vixl::aarch32::SRegister& low,
const vixl::aarch32::SRegister& high) {
return Location::FpuRegisterPairLocation(low.GetCode(), high.GetCode());
}
} // namespace helpers
} // namespace arm
} // namespace art
#endif // ART_COMPILER_OPTIMIZING_COMMON_ARM_H_