Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #ifndef V8_COMPILER_INSTRUCTION_SELECTOR_UNITTEST_H_ |
| 6 | #define V8_COMPILER_INSTRUCTION_SELECTOR_UNITTEST_H_ |
| 7 | |
| 8 | #include <deque> |
| 9 | #include <set> |
| 10 | |
| 11 | #include "src/base/utils/random-number-generator.h" |
| 12 | #include "src/compiler/instruction-selector.h" |
| 13 | #include "src/compiler/raw-machine-assembler.h" |
| 14 | #include "src/test/test-utils.h" |
| 15 | |
| 16 | namespace v8 { |
| 17 | namespace internal { |
| 18 | namespace compiler { |
| 19 | |
| 20 | class InstructionSelectorTest : public TestWithContext, public TestWithZone { |
| 21 | public: |
| 22 | InstructionSelectorTest(); |
| 23 | virtual ~InstructionSelectorTest(); |
| 24 | |
| 25 | base::RandomNumberGenerator* rng() { return &rng_; } |
| 26 | |
| 27 | class Stream; |
| 28 | |
| 29 | enum StreamBuilderMode { |
| 30 | kAllInstructions, |
| 31 | kTargetInstructions, |
| 32 | kAllExceptNopInstructions |
| 33 | }; |
| 34 | |
| 35 | class StreamBuilder FINAL : public RawMachineAssembler { |
| 36 | public: |
| 37 | StreamBuilder(InstructionSelectorTest* test, MachineType return_type) |
| 38 | : RawMachineAssembler(new (test->zone()) Graph(test->zone()), |
| 39 | MakeMachineSignature(test->zone(), return_type)), |
| 40 | test_(test) {} |
| 41 | StreamBuilder(InstructionSelectorTest* test, MachineType return_type, |
| 42 | MachineType parameter0_type) |
| 43 | : RawMachineAssembler( |
| 44 | new (test->zone()) Graph(test->zone()), |
| 45 | MakeMachineSignature(test->zone(), return_type, parameter0_type)), |
| 46 | test_(test) {} |
| 47 | StreamBuilder(InstructionSelectorTest* test, MachineType return_type, |
| 48 | MachineType parameter0_type, MachineType parameter1_type) |
| 49 | : RawMachineAssembler( |
| 50 | new (test->zone()) Graph(test->zone()), |
| 51 | MakeMachineSignature(test->zone(), return_type, parameter0_type, |
| 52 | parameter1_type)), |
| 53 | test_(test) {} |
| 54 | StreamBuilder(InstructionSelectorTest* test, MachineType return_type, |
| 55 | MachineType parameter0_type, MachineType parameter1_type, |
| 56 | MachineType parameter2_type) |
| 57 | : RawMachineAssembler( |
| 58 | new (test->zone()) Graph(test->zone()), |
| 59 | MakeMachineSignature(test->zone(), return_type, parameter0_type, |
| 60 | parameter1_type, parameter2_type)), |
| 61 | test_(test) {} |
| 62 | |
| 63 | Stream Build(CpuFeature feature) { |
| 64 | return Build(InstructionSelector::Features(feature)); |
| 65 | } |
| 66 | Stream Build(CpuFeature feature1, CpuFeature feature2) { |
| 67 | return Build(InstructionSelector::Features(feature1, feature2)); |
| 68 | } |
| 69 | Stream Build(StreamBuilderMode mode = kTargetInstructions) { |
| 70 | return Build(InstructionSelector::Features(), mode); |
| 71 | } |
| 72 | Stream Build(InstructionSelector::Features features, |
| 73 | StreamBuilderMode mode = kTargetInstructions); |
| 74 | |
| 75 | private: |
| 76 | MachineSignature* MakeMachineSignature(Zone* zone, |
| 77 | MachineType return_type) { |
| 78 | MachineSignature::Builder builder(zone, 1, 0); |
| 79 | builder.AddReturn(return_type); |
| 80 | return builder.Build(); |
| 81 | } |
| 82 | |
| 83 | MachineSignature* MakeMachineSignature(Zone* zone, MachineType return_type, |
| 84 | MachineType parameter0_type) { |
| 85 | MachineSignature::Builder builder(zone, 1, 1); |
| 86 | builder.AddReturn(return_type); |
| 87 | builder.AddParam(parameter0_type); |
| 88 | return builder.Build(); |
| 89 | } |
| 90 | |
| 91 | MachineSignature* MakeMachineSignature(Zone* zone, MachineType return_type, |
| 92 | MachineType parameter0_type, |
| 93 | MachineType parameter1_type) { |
| 94 | MachineSignature::Builder builder(zone, 1, 2); |
| 95 | builder.AddReturn(return_type); |
| 96 | builder.AddParam(parameter0_type); |
| 97 | builder.AddParam(parameter1_type); |
| 98 | return builder.Build(); |
| 99 | } |
| 100 | |
| 101 | MachineSignature* MakeMachineSignature(Zone* zone, MachineType return_type, |
| 102 | MachineType parameter0_type, |
| 103 | MachineType parameter1_type, |
| 104 | MachineType parameter2_type) { |
| 105 | MachineSignature::Builder builder(zone, 1, 3); |
| 106 | builder.AddReturn(return_type); |
| 107 | builder.AddParam(parameter0_type); |
| 108 | builder.AddParam(parameter1_type); |
| 109 | builder.AddParam(parameter2_type); |
| 110 | return builder.Build(); |
| 111 | } |
| 112 | |
| 113 | private: |
| 114 | InstructionSelectorTest* test_; |
| 115 | }; |
| 116 | |
| 117 | class Stream FINAL { |
| 118 | public: |
| 119 | size_t size() const { return instructions_.size(); } |
| 120 | const Instruction* operator[](size_t index) const { |
| 121 | EXPECT_LT(index, size()); |
| 122 | return instructions_[index]; |
| 123 | } |
| 124 | |
| 125 | bool IsDouble(const InstructionOperand* operand) const { |
| 126 | return IsDouble(ToVreg(operand)); |
| 127 | } |
| 128 | bool IsDouble(int virtual_register) const { |
| 129 | return doubles_.find(virtual_register) != doubles_.end(); |
| 130 | } |
| 131 | |
| 132 | bool IsInteger(const InstructionOperand* operand) const { |
| 133 | return IsInteger(ToVreg(operand)); |
| 134 | } |
| 135 | bool IsInteger(int virtual_register) const { |
| 136 | return !IsDouble(virtual_register) && !IsReference(virtual_register); |
| 137 | } |
| 138 | |
| 139 | bool IsReference(const InstructionOperand* operand) const { |
| 140 | return IsReference(ToVreg(operand)); |
| 141 | } |
| 142 | bool IsReference(int virtual_register) const { |
| 143 | return references_.find(virtual_register) != references_.end(); |
| 144 | } |
| 145 | |
| 146 | int32_t ToInt32(const InstructionOperand* operand) const { |
| 147 | return ToConstant(operand).ToInt32(); |
| 148 | } |
| 149 | |
| 150 | int64_t ToInt64(const InstructionOperand* operand) const { |
| 151 | return ToConstant(operand).ToInt64(); |
| 152 | } |
| 153 | |
| 154 | int ToVreg(const InstructionOperand* operand) const { |
| 155 | if (operand->IsConstant()) return operand->index(); |
| 156 | EXPECT_EQ(InstructionOperand::UNALLOCATED, operand->kind()); |
| 157 | return UnallocatedOperand::cast(operand)->virtual_register(); |
| 158 | } |
| 159 | |
| 160 | FrameStateDescriptor* GetFrameStateDescriptor(int deoptimization_id) { |
| 161 | EXPECT_LT(deoptimization_id, GetFrameStateDescriptorCount()); |
| 162 | return deoptimization_entries_[deoptimization_id]; |
| 163 | } |
| 164 | |
| 165 | int GetFrameStateDescriptorCount() { |
| 166 | return static_cast<int>(deoptimization_entries_.size()); |
| 167 | } |
| 168 | |
| 169 | private: |
| 170 | Constant ToConstant(const InstructionOperand* operand) const { |
| 171 | ConstantMap::const_iterator i; |
| 172 | if (operand->IsConstant()) { |
| 173 | i = constants_.find(operand->index()); |
| 174 | EXPECT_FALSE(constants_.end() == i); |
| 175 | } else { |
| 176 | EXPECT_EQ(InstructionOperand::IMMEDIATE, operand->kind()); |
| 177 | i = immediates_.find(operand->index()); |
| 178 | EXPECT_FALSE(immediates_.end() == i); |
| 179 | } |
| 180 | EXPECT_EQ(operand->index(), i->first); |
| 181 | return i->second; |
| 182 | } |
| 183 | |
| 184 | friend class StreamBuilder; |
| 185 | |
| 186 | typedef std::map<int, Constant> ConstantMap; |
| 187 | |
| 188 | ConstantMap constants_; |
| 189 | ConstantMap immediates_; |
| 190 | std::deque<Instruction*> instructions_; |
| 191 | std::set<int> doubles_; |
| 192 | std::set<int> references_; |
| 193 | std::deque<FrameStateDescriptor*> deoptimization_entries_; |
| 194 | }; |
| 195 | |
| 196 | base::RandomNumberGenerator rng_; |
| 197 | }; |
| 198 | |
| 199 | |
| 200 | template <typename T> |
| 201 | class InstructionSelectorTestWithParam |
| 202 | : public InstructionSelectorTest, |
| 203 | public ::testing::WithParamInterface<T> {}; |
| 204 | |
| 205 | } // namespace compiler |
| 206 | } // namespace internal |
| 207 | } // namespace v8 |
| 208 | |
| 209 | #endif // V8_COMPILER_INSTRUCTION_SELECTOR_UNITTEST_H_ |