1 /*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <gtest/gtest.h>
18
19 #include "compiled_method_storage.h"
20 #include "compiled_method.h"
21 #include "compiler_driver.h"
22 #include "compiler_options.h"
23 #include "dex/verification_results.h"
24 #include "dex/quick/dex_file_to_method_inliner_map.h"
25
26 namespace art {
27
TEST(CompiledMethodStorage,Deduplicate)28 TEST(CompiledMethodStorage, Deduplicate) {
29 CompilerOptions compiler_options;
30 VerificationResults verification_results(&compiler_options);
31 DexFileToMethodInlinerMap method_inliner_map;
32 CompilerDriver driver(&compiler_options,
33 &verification_results,
34 &method_inliner_map,
35 Compiler::kOptimizing,
36 /* instruction_set_ */ kNone,
37 /* instruction_set_features */ nullptr,
38 /* boot_image */ false,
39 /* app_image */ false,
40 /* image_classes */ nullptr,
41 /* compiled_classes */ nullptr,
42 /* compiled_methods */ nullptr,
43 /* thread_count */ 1u,
44 /* dump_stats */ false,
45 /* dump_passes */ false,
46 /* timer */ nullptr,
47 /* swap_fd */ -1,
48 /* profile_compilation_info */ nullptr);
49 CompiledMethodStorage* storage = driver.GetCompiledMethodStorage();
50
51 ASSERT_TRUE(storage->DedupeEnabled()); // The default.
52
53 const uint8_t raw_code1[] = { 1u, 2u, 3u };
54 const uint8_t raw_code2[] = { 4u, 3u, 2u, 1u };
55 ArrayRef<const uint8_t> code[] = {
56 ArrayRef<const uint8_t>(raw_code1),
57 ArrayRef<const uint8_t>(raw_code2),
58 };
59 const SrcMapElem raw_src_map1[] = { { 1u, 2u }, { 3u, 4u }, { 5u, 6u } };
60 const SrcMapElem raw_src_map2[] = { { 8u, 7u }, { 6u, 5u }, { 4u, 3u }, { 2u, 1u } };
61 ArrayRef<const SrcMapElem> src_map[] = {
62 ArrayRef<const SrcMapElem>(raw_src_map1),
63 ArrayRef<const SrcMapElem>(raw_src_map2),
64 };
65 const uint8_t raw_vmap_table1[] = { 2, 4, 6 };
66 const uint8_t raw_vmap_table2[] = { 7, 5, 3, 1 };
67 ArrayRef<const uint8_t> vmap_table[] = {
68 ArrayRef<const uint8_t>(raw_vmap_table1),
69 ArrayRef<const uint8_t>(raw_vmap_table2),
70 };
71 const uint8_t raw_cfi_info1[] = { 1, 3, 5 };
72 const uint8_t raw_cfi_info2[] = { 8, 6, 4, 2 };
73 ArrayRef<const uint8_t> cfi_info[] = {
74 ArrayRef<const uint8_t>(raw_cfi_info1),
75 ArrayRef<const uint8_t>(raw_cfi_info2),
76 };
77 const LinkerPatch raw_patches1[] = {
78 LinkerPatch::CodePatch(0u, nullptr, 1u),
79 LinkerPatch::MethodPatch(4u, nullptr, 1u),
80 };
81 const LinkerPatch raw_patches2[] = {
82 LinkerPatch::CodePatch(0u, nullptr, 1u),
83 LinkerPatch::MethodPatch(4u, nullptr, 2u),
84 };
85 ArrayRef<const LinkerPatch> patches[] = {
86 ArrayRef<const LinkerPatch>(raw_patches1),
87 ArrayRef<const LinkerPatch>(raw_patches2),
88 };
89
90 std::vector<CompiledMethod*> compiled_methods;
91 compiled_methods.reserve(1u << 7);
92 for (auto&& c : code) {
93 for (auto&& s : src_map) {
94 for (auto&& v : vmap_table) {
95 for (auto&& f : cfi_info) {
96 for (auto&& p : patches) {
97 compiled_methods.push_back(CompiledMethod::SwapAllocCompiledMethod(
98 &driver, kNone, c, 0u, 0u, 0u, s, v, f, p));
99 }
100 }
101 }
102 }
103 }
104 constexpr size_t code_bit = 1u << 4;
105 constexpr size_t src_map_bit = 1u << 3;
106 constexpr size_t vmap_table_bit = 1u << 2;
107 constexpr size_t cfi_info_bit = 1u << 1;
108 constexpr size_t patches_bit = 1u << 0;
109 CHECK_EQ(compiled_methods.size(), 1u << 5);
110 for (size_t i = 0; i != compiled_methods.size(); ++i) {
111 for (size_t j = 0; j != compiled_methods.size(); ++j) {
112 CompiledMethod* lhs = compiled_methods[i];
113 CompiledMethod* rhs = compiled_methods[j];
114 bool same_code = ((i ^ j) & code_bit) == 0u;
115 bool same_src_map = ((i ^ j) & src_map_bit) == 0u;
116 bool same_vmap_table = ((i ^ j) & vmap_table_bit) == 0u;
117 bool same_cfi_info = ((i ^ j) & cfi_info_bit) == 0u;
118 bool same_patches = ((i ^ j) & patches_bit) == 0u;
119 ASSERT_EQ(same_code, lhs->GetQuickCode().data() == rhs->GetQuickCode().data())
120 << i << " " << j;
121 ASSERT_EQ(same_src_map, lhs->GetSrcMappingTable().data() == rhs->GetSrcMappingTable().data())
122 << i << " " << j;
123 ASSERT_EQ(same_vmap_table, lhs->GetVmapTable().data() == rhs->GetVmapTable().data())
124 << i << " " << j;
125 ASSERT_EQ(same_cfi_info, lhs->GetCFIInfo().data() == rhs->GetCFIInfo().data())
126 << i << " " << j;
127 ASSERT_EQ(same_patches, lhs->GetPatches().data() == rhs->GetPatches().data())
128 << i << " " << j;
129 }
130 }
131 for (CompiledMethod* method : compiled_methods) {
132 CompiledMethod::ReleaseSwapAllocatedCompiledMethod(&driver, method);
133 }
134 }
135
136 } // namespace art
137