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| 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_CCTEST_COMPILER_INSTRUCTION_SELECTOR_TEST_H_ |
| 6 #define V8_CCTEST_COMPILER_INSTRUCTION_SELECTOR_TEST_H_ |
| 7 |
| 8 #include <deque> |
| 9 #include <set> |
| 10 |
| 11 #include "src/compiler/instruction-selector.h" |
| 12 #include "src/compiler/raw-machine-assembler.h" |
| 13 #include "src/ostreams.h" |
| 14 #include "test/cctest/cctest.h" |
| 15 |
| 16 namespace v8 { |
| 17 namespace internal { |
| 18 namespace compiler { |
| 19 |
| 20 typedef std::set<int> VirtualRegisterSet; |
| 21 |
| 22 enum InstructionSelectorTesterMode { kTargetMode, kInternalMode }; |
| 23 |
| 24 class InstructionSelectorTester : public HandleAndZoneScope, |
| 25 public RawMachineAssembler { |
| 26 public: |
| 27 enum Mode { kTargetMode, kInternalMode }; |
| 28 |
| 29 static const int kParameterCount = 3; |
| 30 static MachineRepresentation* BuildParameterArray(Zone* zone) { |
| 31 MachineRepresentation* array = |
| 32 zone->NewArray<MachineRepresentation>(kParameterCount); |
| 33 for (int i = 0; i < kParameterCount; ++i) { |
| 34 array[i] = kMachineWord32; |
| 35 } |
| 36 return array; |
| 37 } |
| 38 |
| 39 explicit InstructionSelectorTester(Mode mode = kTargetMode) |
| 40 : RawMachineAssembler( |
| 41 new (main_zone()) Graph(main_zone()), new (main_zone()) |
| 42 MachineCallDescriptorBuilder(kMachineWord32, kParameterCount, |
| 43 BuildParameterArray(main_zone())), |
| 44 MachineOperatorBuilder::pointer_rep()), |
| 45 mode_(mode) {} |
| 46 |
| 47 void SelectInstructions() { |
| 48 OFStream out(stdout); |
| 49 Schedule* schedule = Export(); |
| 50 CHECK_NE(0, graph()->NodeCount()); |
| 51 CompilationInfo info(main_isolate(), main_zone()); |
| 52 Linkage linkage(&info, call_descriptor()); |
| 53 InstructionSequence sequence(&linkage, graph(), schedule); |
| 54 SourcePositionTable source_positions(graph()); |
| 55 InstructionSelector selector(&sequence, &source_positions); |
| 56 selector.SelectInstructions(); |
| 57 out << "--- Code sequence after instruction selection --- " << endl |
| 58 << sequence; |
| 59 for (InstructionSequence::const_iterator i = sequence.begin(); |
| 60 i != sequence.end(); ++i) { |
| 61 Instruction* instr = *i; |
| 62 if (instr->opcode() < 0) continue; |
| 63 if (mode_ == kTargetMode) { |
| 64 switch (ArchOpcodeField::decode(instr->opcode())) { |
| 65 #define CASE(Name) \ |
| 66 case k##Name: \ |
| 67 break; |
| 68 TARGET_ARCH_OPCODE_LIST(CASE) |
| 69 #undef CASE |
| 70 default: |
| 71 continue; |
| 72 } |
| 73 } |
| 74 code.push_back(instr); |
| 75 } |
| 76 for (int vreg = 0; vreg < sequence.VirtualRegisterCount(); ++vreg) { |
| 77 if (sequence.IsDouble(vreg)) { |
| 78 CHECK(!sequence.IsReference(vreg)); |
| 79 doubles.insert(vreg); |
| 80 } |
| 81 if (sequence.IsReference(vreg)) { |
| 82 CHECK(!sequence.IsDouble(vreg)); |
| 83 references.insert(vreg); |
| 84 } |
| 85 } |
| 86 immediates.assign(sequence.immediates().begin(), |
| 87 sequence.immediates().end()); |
| 88 } |
| 89 |
| 90 int32_t ToInt32(const InstructionOperand* operand) const { |
| 91 size_t i = operand->index(); |
| 92 CHECK(i < immediates.size()); |
| 93 CHECK_EQ(InstructionOperand::IMMEDIATE, operand->kind()); |
| 94 return immediates[i].ToInt32(); |
| 95 } |
| 96 |
| 97 std::deque<Instruction*> code; |
| 98 VirtualRegisterSet doubles; |
| 99 VirtualRegisterSet references; |
| 100 std::deque<Constant> immediates; |
| 101 |
| 102 private: |
| 103 Mode mode_; |
| 104 }; |
| 105 |
| 106 |
| 107 static inline void CheckSameVreg(InstructionOperand* exp, |
| 108 InstructionOperand* val) { |
| 109 CHECK_EQ(InstructionOperand::UNALLOCATED, exp->kind()); |
| 110 CHECK_EQ(InstructionOperand::UNALLOCATED, val->kind()); |
| 111 CHECK_EQ(UnallocatedOperand::cast(exp)->virtual_register(), |
| 112 UnallocatedOperand::cast(val)->virtual_register()); |
| 113 } |
| 114 |
| 115 } // namespace compiler |
| 116 } // namespace internal |
| 117 } // namespace v8 |
| 118 |
| 119 #endif // V8_CCTEST_COMPILER_INSTRUCTION_SELECTOR_TEST_H_ |
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