247 lines
10 KiB
C++
247 lines
10 KiB
C++
/*
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* Copyright (C) 2011 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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#include "compiled_method.h"
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#include "driver/compiler_driver.h"
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namespace art {
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CompiledCode::CompiledCode(CompilerDriver* compiler_driver, InstructionSet instruction_set,
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const ArrayRef<const uint8_t>& quick_code)
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: compiler_driver_(compiler_driver), instruction_set_(instruction_set),
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portable_code_(nullptr), quick_code_(nullptr) {
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SetCode(&quick_code, nullptr);
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}
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CompiledCode::CompiledCode(CompilerDriver* compiler_driver, InstructionSet instruction_set,
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const std::string& elf_object, const std::string& symbol)
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: compiler_driver_(compiler_driver), instruction_set_(instruction_set),
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portable_code_(compiler_driver_->DeduplicateCode(
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ArrayRef<const uint8_t>(reinterpret_cast<const uint8_t*>(elf_object.data()),
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elf_object.size()))),
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quick_code_(nullptr), symbol_(symbol) {
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CHECK_NE(elf_object.size(), 0U);
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CHECK_NE(symbol.size(), 0U);
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// TODO: we shouldn't just shove ELF objects in as "code" but
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// change to have different kinds of compiled methods. This is
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// being deferred until we work on hybrid execution or at least
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// until we work on batch compilation.
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}
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void CompiledCode::SetCode(const ArrayRef<const uint8_t>* quick_code,
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const ArrayRef<const uint8_t>* portable_code) {
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if (portable_code != nullptr) {
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CHECK(!portable_code->empty());
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portable_code_ = compiler_driver_->DeduplicateCode(*portable_code);
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}
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if (quick_code != nullptr) {
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CHECK(!quick_code->empty());
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quick_code_ = compiler_driver_->DeduplicateCode(*quick_code);
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}
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}
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bool CompiledCode::operator==(const CompiledCode& rhs) const {
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if (quick_code_ != nullptr) {
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if (rhs.quick_code_ == nullptr) {
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return false;
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} else if (quick_code_->size() != rhs.quick_code_->size()) {
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return false;
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} else {
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return std::equal(quick_code_->begin(), quick_code_->end(), rhs.quick_code_->begin());
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}
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} else if (portable_code_ != nullptr) {
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if (rhs.portable_code_ == nullptr) {
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return false;
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} else if (portable_code_->size() != rhs.portable_code_->size()) {
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return false;
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} else {
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return std::equal(portable_code_->begin(), portable_code_->end(),
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rhs.portable_code_->begin());
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}
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}
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return (rhs.quick_code_ == nullptr) && (rhs.portable_code_ == nullptr);
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}
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uint32_t CompiledCode::AlignCode(uint32_t offset) const {
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return AlignCode(offset, instruction_set_);
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}
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uint32_t CompiledCode::AlignCode(uint32_t offset, InstructionSet instruction_set) {
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return RoundUp(offset, GetInstructionSetAlignment(instruction_set));
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}
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size_t CompiledCode::CodeDelta() const {
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return CodeDelta(instruction_set_);
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}
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size_t CompiledCode::CodeDelta(InstructionSet instruction_set) {
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switch (instruction_set) {
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case kArm:
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case kArm64:
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case kMips:
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case kX86:
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case kX86_64:
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return 0;
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case kThumb2: {
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// +1 to set the low-order bit so a BLX will switch to Thumb mode
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return 1;
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}
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default:
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LOG(FATAL) << "Unknown InstructionSet: " << instruction_set;
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return 0;
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}
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}
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const void* CompiledCode::CodePointer(const void* code_pointer,
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InstructionSet instruction_set) {
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switch (instruction_set) {
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case kArm:
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case kArm64:
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case kMips:
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case kX86:
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case kX86_64:
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return code_pointer;
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case kThumb2: {
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uintptr_t address = reinterpret_cast<uintptr_t>(code_pointer);
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// Set the low-order bit so a BLX will switch to Thumb mode
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address |= 0x1;
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return reinterpret_cast<const void*>(address);
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}
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default:
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LOG(FATAL) << "Unknown InstructionSet: " << instruction_set;
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return NULL;
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}
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}
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const std::string& CompiledCode::GetSymbol() const {
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CHECK_NE(0U, symbol_.size());
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return symbol_;
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}
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const std::vector<uint32_t>& CompiledCode::GetOatdataOffsetsToCompliledCodeOffset() const {
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CHECK_NE(0U, oatdata_offsets_to_compiled_code_offset_.size()) << symbol_;
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return oatdata_offsets_to_compiled_code_offset_;
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}
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void CompiledCode::AddOatdataOffsetToCompliledCodeOffset(uint32_t offset) {
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oatdata_offsets_to_compiled_code_offset_.push_back(offset);
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}
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CompiledMethod::CompiledMethod(CompilerDriver* driver,
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InstructionSet instruction_set,
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const ArrayRef<const uint8_t>& quick_code,
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const size_t frame_size_in_bytes,
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const uint32_t core_spill_mask,
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const uint32_t fp_spill_mask,
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DefaultSrcMap* src_mapping_table,
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const ArrayRef<const uint8_t>& mapping_table,
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const ArrayRef<const uint8_t>& vmap_table,
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const ArrayRef<const uint8_t>& native_gc_map,
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const ArrayRef<const uint8_t>& cfi_info)
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: CompiledCode(driver, instruction_set, quick_code), frame_size_in_bytes_(frame_size_in_bytes),
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core_spill_mask_(core_spill_mask), fp_spill_mask_(fp_spill_mask),
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src_mapping_table_(src_mapping_table == nullptr ?
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driver->DeduplicateSrcMappingTable(ArrayRef<SrcMapElem>()) :
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driver->DeduplicateSrcMappingTable(ArrayRef<SrcMapElem>(src_mapping_table->Arrange()))),
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mapping_table_(mapping_table.data() == nullptr ?
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nullptr : driver->DeduplicateMappingTable(mapping_table)),
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vmap_table_(driver->DeduplicateVMapTable(vmap_table)),
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gc_map_(native_gc_map.data() == nullptr ? nullptr : driver->DeduplicateGCMap(native_gc_map)),
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cfi_info_(cfi_info.data() == nullptr ? nullptr : driver->DeduplicateCFIInfo(cfi_info)) {
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}
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CompiledMethod::CompiledMethod(CompilerDriver* driver,
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InstructionSet instruction_set,
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const ArrayRef<const uint8_t>& code,
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const size_t frame_size_in_bytes,
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const uint32_t core_spill_mask,
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const uint32_t fp_spill_mask,
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const ArrayRef<const uint8_t>& cfi_info)
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: CompiledCode(driver, instruction_set, code),
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frame_size_in_bytes_(frame_size_in_bytes),
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core_spill_mask_(core_spill_mask), fp_spill_mask_(fp_spill_mask),
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cfi_info_(driver->DeduplicateCFIInfo(cfi_info)) {
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src_mapping_table_ = driver->DeduplicateSrcMappingTable(ArrayRef<SrcMapElem>());
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mapping_table_ = driver->DeduplicateMappingTable(ArrayRef<const uint8_t>());
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vmap_table_ = driver->DeduplicateVMapTable(ArrayRef<const uint8_t>());
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gc_map_ = driver->DeduplicateGCMap(ArrayRef<const uint8_t>());
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}
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// Constructs a CompiledMethod for the Portable compiler.
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CompiledMethod::CompiledMethod(CompilerDriver* driver, InstructionSet instruction_set,
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const std::string& code, const ArrayRef<const uint8_t>& gc_map,
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const std::string& symbol)
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: CompiledCode(driver, instruction_set, code, symbol),
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frame_size_in_bytes_(kStackAlignment), core_spill_mask_(0),
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fp_spill_mask_(0), gc_map_(driver->DeduplicateGCMap(gc_map)),
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cfi_info_(nullptr) {
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src_mapping_table_ = driver->DeduplicateSrcMappingTable(ArrayRef<SrcMapElem>());
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mapping_table_ = driver->DeduplicateMappingTable(ArrayRef<const uint8_t>());
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vmap_table_ = driver->DeduplicateVMapTable(ArrayRef<const uint8_t>());
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}
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CompiledMethod::CompiledMethod(CompilerDriver* driver, InstructionSet instruction_set,
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const std::string& code, const std::string& symbol)
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: CompiledCode(driver, instruction_set, code, symbol),
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frame_size_in_bytes_(kStackAlignment), core_spill_mask_(0),
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fp_spill_mask_(0), cfi_info_(nullptr) {
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src_mapping_table_ = driver->DeduplicateSrcMappingTable(ArrayRef<SrcMapElem>());
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mapping_table_ = driver->DeduplicateMappingTable(ArrayRef<const uint8_t>());
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vmap_table_ = driver->DeduplicateVMapTable(ArrayRef<const uint8_t>());
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gc_map_ = driver->DeduplicateGCMap(ArrayRef<const uint8_t>());
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}
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CompiledMethod* CompiledMethod::SwapAllocCompiledMethod(CompilerDriver* driver,
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InstructionSet instruction_set,
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const ArrayRef<const uint8_t>& quick_code,
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const size_t frame_size_in_bytes,
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const uint32_t core_spill_mask,
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const uint32_t fp_spill_mask,
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DefaultSrcMap* src_mapping_table,
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const ArrayRef<const uint8_t>& mapping_table,
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const ArrayRef<const uint8_t>& vmap_table,
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const ArrayRef<const uint8_t>& native_gc_map,
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const ArrayRef<const uint8_t>& cfi_info) {
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SwapAllocator<CompiledMethod> alloc(driver->GetSwapSpaceAllocator());
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CompiledMethod* ret = alloc.allocate(1);
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alloc.construct(ret, driver, instruction_set, quick_code, frame_size_in_bytes, core_spill_mask,
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fp_spill_mask, src_mapping_table, mapping_table, vmap_table, native_gc_map,
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cfi_info);
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return ret;
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}
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CompiledMethod* CompiledMethod::SwapAllocCompiledMethod(CompilerDriver* driver,
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InstructionSet instruction_set,
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const ArrayRef<const uint8_t>& quick_code,
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const size_t frame_size_in_bytes,
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const uint32_t core_spill_mask,
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const uint32_t fp_spill_mask,
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const ArrayRef<const uint8_t>& cfi_info) {
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SwapAllocator<CompiledMethod> alloc(driver->GetSwapSpaceAllocator());
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CompiledMethod* ret = alloc.allocate(1);
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alloc.construct(ret, driver, instruction_set, quick_code, frame_size_in_bytes, core_spill_mask,
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fp_spill_mask, cfi_info);
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return ret;
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}
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void CompiledMethod::ReleaseSwapAllocatedCompiledMethod(CompilerDriver* driver, CompiledMethod* m) {
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SwapAllocator<CompiledMethod> alloc(driver->GetSwapSpaceAllocator());
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alloc.destroy(m);
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alloc.deallocate(m, 1);
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}
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} // namespace art
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