| // 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_COMPILER_SIMPLIFIED_LOWERING_H_ |
| #define V8_COMPILER_SIMPLIFIED_LOWERING_H_ |
| |
| #include "src/compiler/js-graph.h" |
| #include "src/compiler/machine-operator.h" |
| #include "src/compiler/node.h" |
| #include "src/compiler/simplified-operator.h" |
| |
| namespace v8 { |
| namespace internal { |
| namespace compiler { |
| |
| // Forward declarations. |
| class RepresentationChanger; |
| class RepresentationSelector; |
| class SourcePositionTable; |
| class TypeCache; |
| |
| class V8_EXPORT_PRIVATE SimplifiedLowering final { |
| public: |
| SimplifiedLowering(JSGraph* jsgraph, Zone* zone, |
| SourcePositionTable* source_positions); |
| ~SimplifiedLowering() {} |
| |
| void LowerAllNodes(); |
| |
| void DoMax(Node* node, Operator const* op, MachineRepresentation rep); |
| void DoMin(Node* node, Operator const* op, MachineRepresentation rep); |
| void DoJSToNumberOrNumericTruncatesToFloat64( |
| Node* node, RepresentationSelector* selector); |
| void DoJSToNumberOrNumericTruncatesToWord32(Node* node, |
| RepresentationSelector* selector); |
| void DoShift(Node* node, Operator const* op, Type* rhs_type); |
| void DoIntegral32ToBit(Node* node); |
| void DoOrderedNumberToBit(Node* node); |
| void DoNumberToBit(Node* node); |
| void DoIntegerToUint8Clamped(Node* node); |
| void DoNumberToUint8Clamped(Node* node); |
| void DoSigned32ToUint8Clamped(Node* node); |
| void DoUnsigned32ToUint8Clamped(Node* node); |
| |
| private: |
| JSGraph* const jsgraph_; |
| Zone* const zone_; |
| TypeCache const& type_cache_; |
| SetOncePointer<Node> to_number_code_; |
| SetOncePointer<Node> to_numeric_code_; |
| SetOncePointer<Operator const> to_number_operator_; |
| SetOncePointer<Operator const> to_numeric_operator_; |
| |
| // TODO(danno): SimplifiedLowering shouldn't know anything about the source |
| // positions table, but must for now since there currently is no other way to |
| // pass down source position information to nodes created during |
| // lowering. Once this phase becomes a vanilla reducer, it should get source |
| // position information via the SourcePositionWrapper like all other reducers. |
| SourcePositionTable* source_positions_; |
| |
| Node* Float64Round(Node* const node); |
| Node* Float64Sign(Node* const node); |
| Node* Int32Abs(Node* const node); |
| Node* Int32Div(Node* const node); |
| Node* Int32Mod(Node* const node); |
| Node* Int32Sign(Node* const node); |
| Node* Uint32Div(Node* const node); |
| Node* Uint32Mod(Node* const node); |
| |
| Node* ToNumberCode(); |
| Node* ToNumericCode(); |
| Operator const* ToNumberOperator(); |
| Operator const* ToNumericOperator(); |
| |
| friend class RepresentationSelector; |
| |
| Isolate* isolate() { return jsgraph_->isolate(); } |
| Zone* zone() { return jsgraph_->zone(); } |
| JSGraph* jsgraph() { return jsgraph_; } |
| Graph* graph() { return jsgraph()->graph(); } |
| CommonOperatorBuilder* common() { return jsgraph()->common(); } |
| MachineOperatorBuilder* machine() { return jsgraph()->machine(); } |
| SimplifiedOperatorBuilder* simplified() { return jsgraph()->simplified(); } |
| }; |
| |
| } // namespace compiler |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_COMPILER_SIMPLIFIED_LOWERING_H_ |