1 /*
2 * Copyright (C) 2014 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 #ifndef ART_COMPILER_OPTIMIZING_OPTIMIZING_UNIT_TEST_H_
18 #define ART_COMPILER_OPTIMIZING_OPTIMIZING_UNIT_TEST_H_
19
20 #include "nodes.h"
21 #include "builder.h"
22 #include "common_compiler_test.h"
23 #include "dex_file.h"
24 #include "dex_instruction.h"
25 #include "handle_scope-inl.h"
26 #include "scoped_thread_state_change.h"
27 #include "ssa_builder.h"
28 #include "ssa_liveness_analysis.h"
29
30 #include "gtest/gtest.h"
31
32 namespace art {
33
34 #define NUM_INSTRUCTIONS(...) \
35 (sizeof((uint16_t[]) {__VA_ARGS__}) /sizeof(uint16_t))
36
37 #define N_REGISTERS_CODE_ITEM(NUM_REGS, ...) \
38 { NUM_REGS, 0, 0, 0, 0, 0, NUM_INSTRUCTIONS(__VA_ARGS__), 0, __VA_ARGS__ }
39
40 #define ZERO_REGISTER_CODE_ITEM(...) N_REGISTERS_CODE_ITEM(0, __VA_ARGS__)
41 #define ONE_REGISTER_CODE_ITEM(...) N_REGISTERS_CODE_ITEM(1, __VA_ARGS__)
42 #define TWO_REGISTERS_CODE_ITEM(...) N_REGISTERS_CODE_ITEM(2, __VA_ARGS__)
43 #define THREE_REGISTERS_CODE_ITEM(...) N_REGISTERS_CODE_ITEM(3, __VA_ARGS__)
44 #define FOUR_REGISTERS_CODE_ITEM(...) N_REGISTERS_CODE_ITEM(4, __VA_ARGS__)
45 #define FIVE_REGISTERS_CODE_ITEM(...) N_REGISTERS_CODE_ITEM(5, __VA_ARGS__)
46 #define SIX_REGISTERS_CODE_ITEM(...) N_REGISTERS_CODE_ITEM(6, __VA_ARGS__)
47
48 LiveInterval* BuildInterval(const size_t ranges[][2],
49 size_t number_of_ranges,
50 ArenaAllocator* allocator,
51 int reg = -1,
52 HInstruction* defined_by = nullptr) {
53 LiveInterval* interval = LiveInterval::MakeInterval(allocator, Primitive::kPrimInt, defined_by);
54 if (defined_by != nullptr) {
55 defined_by->SetLiveInterval(interval);
56 }
57 for (size_t i = number_of_ranges; i > 0; --i) {
58 interval->AddRange(ranges[i - 1][0], ranges[i - 1][1]);
59 }
60 interval->SetRegister(reg);
61 return interval;
62 }
63
RemoveSuspendChecks(HGraph * graph)64 void RemoveSuspendChecks(HGraph* graph) {
65 for (HBasicBlock* block : graph->GetBlocks()) {
66 if (block != nullptr) {
67 for (HInstructionIterator it(block->GetInstructions()); !it.Done(); it.Advance()) {
68 HInstruction* current = it.Current();
69 if (current->IsSuspendCheck()) {
70 current->GetBlock()->RemoveInstruction(current);
71 }
72 }
73 }
74 }
75 }
76
CreateGraph(ArenaAllocator * allocator)77 inline HGraph* CreateGraph(ArenaAllocator* allocator) {
78 return new (allocator) HGraph(
79 allocator, *reinterpret_cast<DexFile*>(allocator->Alloc(sizeof(DexFile))), -1, false,
80 kRuntimeISA);
81 }
82
83 // Create a control-flow graph from Dex instructions.
84 inline HGraph* CreateCFG(ArenaAllocator* allocator,
85 const uint16_t* data,
86 Primitive::Type return_type = Primitive::kPrimInt) {
87 const DexFile::CodeItem* item =
88 reinterpret_cast<const DexFile::CodeItem*>(data);
89 HGraph* graph = CreateGraph(allocator);
90
91 {
92 ScopedObjectAccess soa(Thread::Current());
93 StackHandleScopeCollection handles(soa.Self());
94 HGraphBuilder builder(graph, *item, &handles, return_type);
95 bool graph_built = (builder.BuildGraph() == kAnalysisSuccess);
96 return graph_built ? graph : nullptr;
97 }
98 }
99
100 // Naive string diff data type.
101 typedef std::list<std::pair<std::string, std::string>> diff_t;
102
103 // An alias for the empty string used to make it clear that a line is
104 // removed in a diff.
105 static const std::string removed = "";
106
107 // Naive patch command: apply a diff to a string.
Patch(const std::string & original,const diff_t & diff)108 inline std::string Patch(const std::string& original, const diff_t& diff) {
109 std::string result = original;
110 for (const auto& p : diff) {
111 std::string::size_type pos = result.find(p.first);
112 DCHECK_NE(pos, std::string::npos)
113 << "Could not find: \"" << p.first << "\" in \"" << result << "\"";
114 result.replace(pos, p.first.size(), p.second);
115 }
116 return result;
117 }
118
119 // Returns if the instruction is removed from the graph.
IsRemoved(HInstruction * instruction)120 inline bool IsRemoved(HInstruction* instruction) {
121 return instruction->GetBlock() == nullptr;
122 }
123
124 } // namespace art
125
126 #endif // ART_COMPILER_OPTIMIZING_OPTIMIZING_UNIT_TEST_H_
127