| // Copyright 2018 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. |
| |
| #include "src/compiler/js-heap-copy-reducer.h" |
| |
| #include "src/compiler/common-operator.h" |
| #include "src/compiler/js-heap-broker.h" |
| #include "src/compiler/js-operator.h" |
| #include "src/compiler/node-properties.h" |
| #include "src/compiler/simplified-operator.h" |
| #include "src/heap/factory-inl.h" |
| #include "src/objects/map.h" |
| #include "src/objects/scope-info.h" |
| |
| namespace v8 { |
| namespace internal { |
| namespace compiler { |
| |
| // In the functions below, we call the ObjectRef (or subclass) constructor in |
| // order to trigger serialization if not yet done. |
| |
| JSHeapCopyReducer::JSHeapCopyReducer(JSHeapBroker* broker) : broker_(broker) {} |
| |
| JSHeapBroker* JSHeapCopyReducer::broker() { return broker_; } |
| |
| Reduction JSHeapCopyReducer::Reduce(Node* node) { |
| switch (node->opcode()) { |
| case IrOpcode::kHeapConstant: { |
| ObjectRef object(broker(), HeapConstantOf(node->op())); |
| if (object.IsJSFunction()) object.AsJSFunction().Serialize(); |
| if (object.IsJSObject()) object.AsJSObject().SerializeObjectCreateMap(); |
| if (object.IsSourceTextModule()) object.AsSourceTextModule().Serialize(); |
| break; |
| } |
| case IrOpcode::kJSCreateArray: { |
| CreateArrayParameters const& p = CreateArrayParametersOf(node->op()); |
| Handle<AllocationSite> site; |
| if (p.site().ToHandle(&site)) AllocationSiteRef(broker(), site); |
| break; |
| } |
| case IrOpcode::kJSCreateArguments: { |
| Node* const frame_state = NodeProperties::GetFrameStateInput(node); |
| FrameStateInfo state_info = FrameStateInfoOf(frame_state->op()); |
| SharedFunctionInfoRef shared(broker(), |
| state_info.shared_info().ToHandleChecked()); |
| break; |
| } |
| case IrOpcode::kJSCreateBlockContext: { |
| ScopeInfoRef(broker(), ScopeInfoOf(node->op())); |
| break; |
| } |
| case IrOpcode::kJSCreateBoundFunction: { |
| CreateBoundFunctionParameters const& p = |
| CreateBoundFunctionParametersOf(node->op()); |
| MapRef(broker(), p.map()); |
| break; |
| } |
| case IrOpcode::kJSCreateCatchContext: { |
| ScopeInfoRef(broker(), ScopeInfoOf(node->op())); |
| break; |
| } |
| case IrOpcode::kJSCreateClosure: { |
| CreateClosureParameters const& p = CreateClosureParametersOf(node->op()); |
| SharedFunctionInfoRef(broker(), p.shared_info()); |
| FeedbackCellRef(broker(), p.feedback_cell()); |
| HeapObjectRef(broker(), p.code()); |
| break; |
| } |
| case IrOpcode::kJSCreateEmptyLiteralArray: { |
| FeedbackParameter const& p = FeedbackParameterOf(node->op()); |
| FeedbackVectorRef(broker(), p.feedback().vector()).SerializeSlots(); |
| break; |
| } |
| case IrOpcode::kJSCreateFunctionContext: { |
| CreateFunctionContextParameters const& p = |
| CreateFunctionContextParametersOf(node->op()); |
| ScopeInfoRef(broker(), p.scope_info()); |
| break; |
| } |
| case IrOpcode::kJSCreateLiteralArray: |
| case IrOpcode::kJSCreateLiteralObject: { |
| CreateLiteralParameters const& p = CreateLiteralParametersOf(node->op()); |
| FeedbackVectorRef(broker(), p.feedback().vector()).SerializeSlots(); |
| break; |
| } |
| case IrOpcode::kJSCreateLiteralRegExp: { |
| CreateLiteralParameters const& p = CreateLiteralParametersOf(node->op()); |
| FeedbackVectorRef(broker(), p.feedback().vector()).SerializeSlots(); |
| break; |
| } |
| case IrOpcode::kJSCreateWithContext: { |
| ScopeInfoRef(broker(), ScopeInfoOf(node->op())); |
| break; |
| } |
| case IrOpcode::kJSLoadNamed: |
| case IrOpcode::kJSStoreNamed: { |
| NamedAccess const& p = NamedAccessOf(node->op()); |
| NameRef(broker(), p.name()); |
| break; |
| } |
| case IrOpcode::kStoreField: |
| case IrOpcode::kLoadField: { |
| FieldAccess access = FieldAccessOf(node->op()); |
| Handle<Map> map_handle; |
| if (access.map.ToHandle(&map_handle)) { |
| MapRef(broker(), map_handle); |
| } |
| Handle<Name> name_handle; |
| if (access.name.ToHandle(&name_handle)) { |
| NameRef(broker(), name_handle); |
| } |
| break; |
| } |
| case IrOpcode::kMapGuard: { |
| ZoneHandleSet<Map> const& maps = MapGuardMapsOf(node->op()); |
| for (Handle<Map> map : maps) { |
| MapRef(broker(), map); |
| } |
| break; |
| } |
| case IrOpcode::kCheckMaps: { |
| ZoneHandleSet<Map> const& maps = CheckMapsParametersOf(node->op()).maps(); |
| for (Handle<Map> map : maps) { |
| MapRef(broker(), map); |
| } |
| break; |
| } |
| case IrOpcode::kCompareMaps: { |
| ZoneHandleSet<Map> const& maps = CompareMapsParametersOf(node->op()); |
| for (Handle<Map> map : maps) { |
| MapRef(broker(), map); |
| } |
| break; |
| } |
| |
| default: |
| break; |
| } |
| return NoChange(); |
| } |
| |
| } // namespace compiler |
| } // namespace internal |
| } // namespace v8 |