| // Copyright 2014 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef V8_CCTEST_COMPILER_INSTRUCTION_SELECTOR_TEST_H_ |
| #define V8_CCTEST_COMPILER_INSTRUCTION_SELECTOR_TEST_H_ |
| |
| #include <deque> |
| #include <set> |
| |
| #include "src/compiler/instruction-selector.h" |
| #include "src/compiler/raw-machine-assembler.h" |
| #include "src/ostreams.h" |
| #include "test/cctest/cctest.h" |
| |
| namespace v8 { |
| namespace internal { |
| namespace compiler { |
| |
| typedef std::set<int> VirtualRegisterSet; |
| |
| enum InstructionSelectorTesterMode { kTargetMode, kInternalMode }; |
| |
| class InstructionSelectorTester : public HandleAndZoneScope, |
| public RawMachineAssembler { |
| public: |
| enum Mode { kTargetMode, kInternalMode }; |
| |
| static const int kParameterCount = 3; |
| static MachineType* BuildParameterArray(Zone* zone) { |
| MachineType* array = zone->NewArray<MachineType>(kParameterCount); |
| for (int i = 0; i < kParameterCount; ++i) { |
| array[i] = kMachInt32; |
| } |
| return array; |
| } |
| |
| InstructionSelectorTester() |
| : RawMachineAssembler( |
| new (main_zone()) Graph(main_zone()), |
| new (main_zone()) MachineCallDescriptorBuilder( |
| kMachInt32, kParameterCount, BuildParameterArray(main_zone())), |
| kMachPtr) {} |
| |
| void SelectInstructions(CpuFeature feature) { |
| SelectInstructions(InstructionSelector::Features(feature)); |
| } |
| |
| void SelectInstructions(CpuFeature feature1, CpuFeature feature2) { |
| SelectInstructions(InstructionSelector::Features(feature1, feature2)); |
| } |
| |
| void SelectInstructions(Mode mode = kTargetMode) { |
| SelectInstructions(InstructionSelector::Features(), mode); |
| } |
| |
| void SelectInstructions(InstructionSelector::Features features, |
| Mode mode = kTargetMode) { |
| OFStream out(stdout); |
| Schedule* schedule = Export(); |
| CHECK_NE(0, graph()->NodeCount()); |
| CompilationInfo info(main_isolate(), main_zone()); |
| Linkage linkage(&info, call_descriptor()); |
| InstructionSequence sequence(&linkage, graph(), schedule); |
| SourcePositionTable source_positions(graph()); |
| InstructionSelector selector(&sequence, &source_positions, features); |
| selector.SelectInstructions(); |
| out << "--- Code sequence after instruction selection --- " << endl |
| << sequence; |
| for (InstructionSequence::const_iterator i = sequence.begin(); |
| i != sequence.end(); ++i) { |
| Instruction* instr = *i; |
| if (instr->opcode() < 0) continue; |
| if (mode == kTargetMode) { |
| switch (ArchOpcodeField::decode(instr->opcode())) { |
| #define CASE(Name) \ |
| case k##Name: \ |
| break; |
| TARGET_ARCH_OPCODE_LIST(CASE) |
| #undef CASE |
| default: |
| continue; |
| } |
| } |
| code.push_back(instr); |
| } |
| for (int vreg = 0; vreg < sequence.VirtualRegisterCount(); ++vreg) { |
| if (sequence.IsDouble(vreg)) { |
| CHECK(!sequence.IsReference(vreg)); |
| doubles.insert(vreg); |
| } |
| if (sequence.IsReference(vreg)) { |
| CHECK(!sequence.IsDouble(vreg)); |
| references.insert(vreg); |
| } |
| } |
| immediates.assign(sequence.immediates().begin(), |
| sequence.immediates().end()); |
| } |
| |
| int32_t ToInt32(const InstructionOperand* operand) const { |
| size_t i = operand->index(); |
| CHECK(i < immediates.size()); |
| CHECK_EQ(InstructionOperand::IMMEDIATE, operand->kind()); |
| return immediates[i].ToInt32(); |
| } |
| |
| std::deque<Instruction*> code; |
| VirtualRegisterSet doubles; |
| VirtualRegisterSet references; |
| std::deque<Constant> immediates; |
| }; |
| |
| |
| static inline void CheckSameVreg(InstructionOperand* exp, |
| InstructionOperand* val) { |
| CHECK_EQ(InstructionOperand::UNALLOCATED, exp->kind()); |
| CHECK_EQ(InstructionOperand::UNALLOCATED, val->kind()); |
| CHECK_EQ(UnallocatedOperand::cast(exp)->virtual_register(), |
| UnallocatedOperand::cast(val)->virtual_register()); |
| } |
| |
| } // namespace compiler |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_CCTEST_COMPILER_INSTRUCTION_SELECTOR_TEST_H_ |