/*
* 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 .
*/
#include "compiled_method_storage.h"
#include <gtest/gtest.h>
#include "compiled_method-inl.h"
namespace art {
TEST(CompiledMethodStorage, Deduplicate) {
CompiledMethodStorage storage(/* swap_fd= */ -1);
ASSERT_TRUE(storage.DedupeEnabled()); // The default.
const uint8_t raw_code1[] = { 1 u, 2 u, 3 u };
const uint8_t raw_code2[] = { 4 u, 3 u, 2 u, 1 u };
ArrayRef<const uint8_t> code[] = {
ArrayRef<const uint8_t>(raw_code1),
ArrayRef<const uint8_t>(raw_code2),
};
const uint8_t raw_vmap_table1[] = { 2 , 4 , 6 };
const uint8_t raw_vmap_table2[] = { 7 , 5 , 3 , 1 };
ArrayRef<const uint8_t> vmap_table[] = {
ArrayRef<const uint8_t>(raw_vmap_table1),
ArrayRef<const uint8_t>(raw_vmap_table2),
};
const uint8_t raw_cfi_info1[] = { 1 , 3 , 5 };
const uint8_t raw_cfi_info2[] = { 8 , 6 , 4 , 2 };
ArrayRef<const uint8_t> cfi_info[] = {
ArrayRef<const uint8_t>(raw_cfi_info1),
ArrayRef<const uint8_t>(raw_cfi_info2),
};
const linker::LinkerPatch raw_patches1[] = {
linker::LinkerPatch::IntrinsicReferencePatch(0 u, 0 u, 0 u),
linker::LinkerPatch::RelativeMethodPatch(4 u, nullptr, 0 u, 1 u),
};
const linker::LinkerPatch raw_patches2[] = {
linker::LinkerPatch::IntrinsicReferencePatch(0 u, 0 u, 0 u),
linker::LinkerPatch::RelativeMethodPatch(4 u, nullptr, 0 u, 2 u),
};
ArrayRef<const linker::LinkerPatch> patches[] = {
ArrayRef<const linker::LinkerPatch>(raw_patches1),
ArrayRef<const linker::LinkerPatch>(raw_patches2),
};
std::vector<CompiledMethod*> compiled_methods;
compiled_methods.reserve(1 u << 4 );
for (auto && c : code) {
for (auto && v : vmap_table) {
for (auto && f : cfi_info) {
for (auto && p : patches) {
compiled_methods.push_back(CompiledMethod::SwapAllocCompiledMethod(
&storage, InstructionSet::kNone, c, v, f, p));
}
}
}
}
constexpr size_t code_bit = 1 u << 3 ;
constexpr size_t vmap_table_bit = 1 u << 2 ;
constexpr size_t cfi_info_bit = 1 u << 1 ;
constexpr size_t patches_bit = 1 u << 0 ;
CHECK_EQ(compiled_methods.size(), 1 u << 4 );
for (size_t i = 0 ; i != compiled_methods.size(); ++i) {
for (size_t j = 0 ; j != compiled_methods.size(); ++j) {
CompiledMethod* lhs = compiled_methods[i];
CompiledMethod* rhs = compiled_methods[j];
bool same_code = ((i ^ j) & code_bit) == 0 u;
bool same_vmap_table = ((i ^ j) & vmap_table_bit) == 0 u;
bool same_cfi_info = ((i ^ j) & cfi_info_bit) == 0 u;
bool same_patches = ((i ^ j) & patches_bit) == 0 u;
ASSERT_EQ(same_code, lhs->GetQuickCode().data() == rhs->GetQuickCode().data())
<< i << " " << j;
ASSERT_EQ(same_vmap_table, lhs->GetVmapTable().data() == rhs->GetVmapTable().data())
<< i << " " << j;
ASSERT_EQ(same_cfi_info, lhs->GetCFIInfo().data() == rhs->GetCFIInfo().data())
<< i << " " << j;
ASSERT_EQ(same_patches, lhs->GetPatches().data() == rhs->GetPatches().data())
<< i << " " << j;
}
}
for (CompiledMethod* method : compiled_methods) {
CompiledMethod::ReleaseSwapAllocatedCompiledMethod(&storage, method);
}
}
} // namespace art
Messung V0.5 in Prozent C=90 H=93 G=91
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-06-29)
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