LCOV - code coverage report
Current view: top level - test/cctest/compiler - graph-builder-tester.h (source / functions) Hit Total Coverage
Test: app.info Lines: 54 69 78.3 %
Date: 2017-10-20 Functions: 10 12 83.3 %

          Line data    Source code
       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_GRAPH_BUILDER_TESTER_H_
       6             : #define V8_CCTEST_COMPILER_GRAPH_BUILDER_TESTER_H_
       7             : 
       8             : #include "src/compilation-info.h"
       9             : #include "src/compiler/common-operator.h"
      10             : #include "src/compiler/instruction-selector.h"
      11             : #include "src/compiler/linkage.h"
      12             : #include "src/compiler/machine-operator.h"
      13             : #include "src/compiler/operator-properties.h"
      14             : #include "src/compiler/pipeline.h"
      15             : #include "src/compiler/simplified-operator.h"
      16             : #include "test/cctest/cctest.h"
      17             : #include "test/cctest/compiler/call-tester.h"
      18             : 
      19             : namespace v8 {
      20             : namespace internal {
      21             : namespace compiler {
      22             : 
      23             : class GraphAndBuilders {
      24             :  public:
      25       97100 :   explicit GraphAndBuilders(Zone* zone)
      26       97100 :       : main_graph_(new (zone) Graph(zone)),
      27             :         main_common_(zone),
      28             :         main_machine_(zone, MachineType::PointerRepresentation(),
      29             :                       InstructionSelector::SupportedMachineOperatorFlags(),
      30             :                       InstructionSelector::AlignmentRequirements()),
      31       97100 :         main_simplified_(zone) {}
      32             : 
      33             :   Graph* graph() const { return main_graph_; }
      34       95579 :   Zone* zone() const { return graph()->zone(); }
      35             :   CommonOperatorBuilder* common() { return &main_common_; }
      36             :   MachineOperatorBuilder* machine() { return &main_machine_; }
      37             :   SimplifiedOperatorBuilder* simplified() { return &main_simplified_; }
      38             : 
      39             :  protected:
      40             :   // Prefixed with main_ to avoid naming conflicts.
      41             :   Graph* main_graph_;
      42             :   CommonOperatorBuilder main_common_;
      43             :   MachineOperatorBuilder main_machine_;
      44             :   SimplifiedOperatorBuilder main_simplified_;
      45             : };
      46             : 
      47             : 
      48             : template <typename ReturnType>
      49             : class GraphBuilderTester : public HandleAndZoneScope,
      50             :                            public GraphAndBuilders,
      51             :                            public CallHelper<ReturnType> {
      52             :  public:
      53          10 :   explicit GraphBuilderTester(MachineType p0 = MachineType::None(),
      54             :                               MachineType p1 = MachineType::None(),
      55             :                               MachineType p2 = MachineType::None(),
      56             :                               MachineType p3 = MachineType::None(),
      57          10 :                               MachineType p4 = MachineType::None())
      58             :       : GraphAndBuilders(main_zone()),
      59             :         CallHelper<ReturnType>(
      60             :             main_isolate(),
      61             :             CSignature::New(main_zone(), MachineTypeForC<ReturnType>(), p0, p1,
      62          10 :                             p2, p3, p4)),
      63             :         effect_(nullptr),
      64             :         return_(nullptr),
      65          50 :         parameters_(main_zone()->template NewArray<Node*>(parameter_count())) {
      66          10 :     Begin(static_cast<int>(parameter_count()));
      67          10 :     InitParameters();
      68          10 :   }
      69          15 :   virtual ~GraphBuilderTester() {}
      70             : 
      71             :   void GenerateCode() { Generate(); }
      72             :   Node* Parameter(size_t index) {
      73             :     CHECK_LT(index, parameter_count());
      74             :     return parameters_[index];
      75             :   }
      76             : 
      77             :   Isolate* isolate() { return main_isolate(); }
      78             :   Factory* factory() { return isolate()->factory(); }
      79             : 
      80             :   // Initialize graph and builder.
      81          10 :   void Begin(int num_parameters) {
      82          30 :     CHECK_NULL(graph()->start());
      83          10 :     Node* start = graph()->NewNode(common()->Start(num_parameters + 3));
      84             :     graph()->SetStart(start);
      85          10 :     effect_ = start;
      86          10 :   }
      87             : 
      88          10 :   void Return(Node* value) {
      89          30 :     Node* zero = graph()->NewNode(common()->Int32Constant(0));
      90          20 :     return_ = graph()->NewNode(common()->Return(), zero, value, effect_,
      91             :                                graph()->start());
      92          10 :     effect_ = nullptr;
      93          10 :   }
      94             : 
      95             :   // Close the graph.
      96          10 :   void End() {
      97          20 :     Node* end = graph()->NewNode(common()->End(1), return_);
      98             :     graph()->SetEnd(end);
      99          10 :   }
     100             : 
     101             :   Node* PointerConstant(void* value) {
     102             :     intptr_t intptr_value = reinterpret_cast<intptr_t>(value);
     103             :     return kPointerSize == 8 ? NewNode(common()->Int64Constant(intptr_value))
     104             :                              : Int32Constant(static_cast<int>(intptr_value));
     105             :   }
     106          10 :   Node* Int32Constant(int32_t value) {
     107          20 :     return NewNode(common()->Int32Constant(value));
     108             :   }
     109             :   Node* HeapConstant(Handle<HeapObject> object) {
     110             :     return NewNode(common()->HeapConstant(object));
     111             :   }
     112             : 
     113             :   Node* BooleanNot(Node* a) { return NewNode(simplified()->BooleanNot(), a); }
     114             : 
     115             :   Node* NumberEqual(Node* a, Node* b) {
     116             :     return NewNode(simplified()->NumberEqual(), a, b);
     117             :   }
     118             :   Node* NumberLessThan(Node* a, Node* b) {
     119             :     return NewNode(simplified()->NumberLessThan(), a, b);
     120             :   }
     121             :   Node* NumberLessThanOrEqual(Node* a, Node* b) {
     122             :     return NewNode(simplified()->NumberLessThanOrEqual(), a, b);
     123             :   }
     124             :   Node* NumberAdd(Node* a, Node* b) {
     125             :     return NewNode(simplified()->NumberAdd(), a, b);
     126             :   }
     127             :   Node* NumberSubtract(Node* a, Node* b) {
     128             :     return NewNode(simplified()->NumberSubtract(), a, b);
     129             :   }
     130             :   Node* NumberMultiply(Node* a, Node* b) {
     131             :     return NewNode(simplified()->NumberMultiply(), a, b);
     132             :   }
     133             :   Node* NumberDivide(Node* a, Node* b) {
     134             :     return NewNode(simplified()->NumberDivide(), a, b);
     135             :   }
     136             :   Node* NumberModulus(Node* a, Node* b) {
     137             :     return NewNode(simplified()->NumberModulus(), a, b);
     138             :   }
     139             :   Node* NumberToInt32(Node* a) {
     140             :     return NewNode(simplified()->NumberToInt32(), a);
     141             :   }
     142             :   Node* NumberToUint32(Node* a) {
     143             :     return NewNode(simplified()->NumberToUint32(), a);
     144             :   }
     145             : 
     146             :   Node* StringEqual(Node* a, Node* b) {
     147             :     return NewNode(simplified()->StringEqual(), a, b);
     148             :   }
     149             :   Node* StringLessThan(Node* a, Node* b) {
     150             :     return NewNode(simplified()->StringLessThan(), a, b);
     151             :   }
     152             :   Node* StringLessThanOrEqual(Node* a, Node* b) {
     153             :     return NewNode(simplified()->StringLessThanOrEqual(), a, b);
     154             :   }
     155             : 
     156             :   Node* ChangeTaggedToInt32(Node* a) {
     157             :     return NewNode(simplified()->ChangeTaggedToInt32(), a);
     158             :   }
     159             :   Node* ChangeTaggedToUint32(Node* a) {
     160             :     return NewNode(simplified()->ChangeTaggedToUint32(), a);
     161             :   }
     162             :   Node* ChangeTaggedToFloat64(Node* a) {
     163             :     return NewNode(simplified()->ChangeTaggedToFloat64(), a);
     164             :   }
     165             :   Node* ChangeInt32ToTagged(Node* a) {
     166             :     return NewNode(simplified()->ChangeInt32ToTagged(), a);
     167             :   }
     168             :   Node* ChangeUint32ToTagged(Node* a) {
     169             :     return NewNode(simplified()->ChangeUint32ToTagged(), a);
     170             :   }
     171             :   Node* ChangeFloat64ToTagged(Node* a) {
     172             :     return NewNode(simplified()->ChangeFloat64ToTagged(), a);
     173             :   }
     174             :   Node* ChangeTaggedToBit(Node* a) {
     175             :     return NewNode(simplified()->ChangeTaggedToBit(), a);
     176             :   }
     177             :   Node* ChangeBitToTagged(Node* a) {
     178             :     return NewNode(simplified()->ChangeBitToTagged(), a);
     179             :   }
     180             : 
     181             :   Node* LoadField(const FieldAccess& access, Node* object) {
     182             :     return NewNode(simplified()->LoadField(access), object);
     183             :   }
     184             :   Node* StoreField(const FieldAccess& access, Node* object, Node* value) {
     185             :     return NewNode(simplified()->StoreField(access), object, value);
     186             :   }
     187             :   Node* LoadElement(const ElementAccess& access, Node* object, Node* index) {
     188             :     return NewNode(simplified()->LoadElement(access), object, index);
     189             :   }
     190             :   Node* StoreElement(const ElementAccess& access, Node* object, Node* index,
     191             :                      Node* value) {
     192             :     return NewNode(simplified()->StoreElement(access), object, index, value);
     193             :   }
     194             : 
     195             :   Node* NewNode(const Operator* op) {
     196          10 :     return MakeNode(op, 0, static_cast<Node**>(nullptr));
     197             :   }
     198             : 
     199           0 :   Node* NewNode(const Operator* op, Node* n1) { return MakeNode(op, 1, &n1); }
     200             : 
     201             :   Node* NewNode(const Operator* op, Node* n1, Node* n2) {
     202             :     Node* buffer[] = {n1, n2};
     203             :     return MakeNode(op, arraysize(buffer), buffer);
     204             :   }
     205             : 
     206             :   Node* NewNode(const Operator* op, Node* n1, Node* n2, Node* n3) {
     207             :     Node* buffer[] = {n1, n2, n3};
     208             :     return MakeNode(op, arraysize(buffer), buffer);
     209             :   }
     210             : 
     211             :   Node* NewNode(const Operator* op, Node* n1, Node* n2, Node* n3, Node* n4) {
     212             :     Node* buffer[] = {n1, n2, n3, n4};
     213             :     return MakeNode(op, arraysize(buffer), buffer);
     214             :   }
     215             : 
     216             :   Node* NewNode(const Operator* op, Node* n1, Node* n2, Node* n3, Node* n4,
     217             :                 Node* n5) {
     218             :     Node* buffer[] = {n1, n2, n3, n4, n5};
     219             :     return MakeNode(op, arraysize(buffer), buffer);
     220             :   }
     221             : 
     222             :   Node* NewNode(const Operator* op, Node* n1, Node* n2, Node* n3, Node* n4,
     223             :                 Node* n5, Node* n6) {
     224             :     Node* nodes[] = {n1, n2, n3, n4, n5, n6};
     225             :     return MakeNode(op, arraysize(nodes), nodes);
     226             :   }
     227             : 
     228             :   Node* NewNode(const Operator* op, int value_input_count,
     229             :                 Node** value_inputs) {
     230             :     return MakeNode(op, value_input_count, value_inputs);
     231             :   }
     232             : 
     233          10 :   Handle<Code> GetCode() {
     234          10 :     Generate();
     235          10 :     return code_.ToHandleChecked();
     236             :   }
     237             : 
     238             :  protected:
     239          30 :   Node* MakeNode(const Operator* op, int value_input_count,
     240             :                  Node** value_inputs) {
     241          10 :     CHECK_EQ(op->ValueInputCount(), value_input_count);
     242             : 
     243          10 :     CHECK(!OperatorProperties::HasContextInput(op));
     244          10 :     CHECK(!OperatorProperties::HasFrameStateInput(op));
     245          10 :     bool has_control = op->ControlInputCount() == 1;
     246          10 :     bool has_effect = op->EffectInputCount() == 1;
     247             : 
     248          10 :     CHECK_LT(op->ControlInputCount(), 2);
     249          10 :     CHECK_LT(op->EffectInputCount(), 2);
     250             : 
     251             :     Node* result = nullptr;
     252          10 :     if (!has_control && !has_effect) {
     253          10 :       result = graph()->NewNode(op, value_input_count, value_inputs);
     254             :     } else {
     255             :       int input_count_with_deps = value_input_count;
     256           0 :       if (has_control) ++input_count_with_deps;
     257           0 :       if (has_effect) ++input_count_with_deps;
     258           0 :       Node** buffer = zone()->template NewArray<Node*>(input_count_with_deps);
     259           0 :       memcpy(buffer, value_inputs, kPointerSize * value_input_count);
     260           0 :       Node** current_input = buffer + value_input_count;
     261           0 :       if (has_effect) {
     262           0 :         *current_input++ = effect_;
     263             :       }
     264           0 :       if (has_control) {
     265           0 :         *current_input++ = graph()->start();
     266             :       }
     267           0 :       result = graph()->NewNode(op, input_count_with_deps, buffer);
     268           0 :       if (has_effect) {
     269           0 :         effect_ = result;
     270             :       }
     271             :       // This graph builder does not support control flow.
     272           0 :       CHECK_EQ(0, op->ControlOutputCount());
     273             :     }
     274             : 
     275          10 :     return result;
     276             :   }
     277             : 
     278          10 :   virtual byte* Generate() {
     279          10 :     if (code_.is_null()) {
     280          20 :       Zone* zone = graph()->zone();
     281             :       CallDescriptor* desc =
     282          10 :           Linkage::GetSimplifiedCDescriptor(zone, this->csig_);
     283             :       CompilationInfo info(ArrayVector("testing"), main_isolate(), main_zone(),
     284          10 :                            Code::STUB);
     285          10 :       code_ = Pipeline::GenerateCodeForTesting(&info, desc, graph());
     286             : #ifdef ENABLE_DISASSEMBLER
     287             :       if (!code_.is_null() && FLAG_print_opt_code) {
     288             :         OFStream os(stdout);
     289             :         code_.ToHandleChecked()->Disassemble("test code", os);
     290             :       }
     291             : #endif
     292             :     }
     293          10 :     return code_.ToHandleChecked()->entry();
     294             :   }
     295             : 
     296          10 :   void InitParameters() {
     297          10 :     int param_count = static_cast<int>(parameter_count());
     298          10 :     for (int i = 0; i < param_count; ++i) {
     299           0 :       parameters_[i] = this->NewNode(common()->Parameter(i), graph()->start());
     300             :     }
     301          10 :   }
     302             : 
     303          30 :   size_t parameter_count() const { return this->csig_->parameter_count(); }
     304             : 
     305             :  private:
     306             :   Node* effect_;
     307             :   Node* return_;
     308             :   Node** parameters_;
     309             :   MaybeHandle<Code> code_;
     310             : };
     311             : 
     312             : }  // namespace compiler
     313             : }  // namespace internal
     314             : }  // namespace v8
     315             : 
     316             : #endif  // V8_CCTEST_COMPILER_GRAPH_BUILDER_TESTER_H_

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