| // 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_OPERATOR_REDUCERS_H_ |
| #define V8_COMPILER_OPERATOR_REDUCERS_H_ |
| |
| #include "src/compiler/graph-reducer.h" |
| #include "src/compiler/js-graph.h" |
| #include "src/compiler/lowering-builder.h" |
| #include "src/compiler/machine-operator.h" |
| #include "src/compiler/node.h" |
| #include "src/compiler/simplified-operator.h" |
| |
| namespace v8 { |
| namespace internal { |
| namespace compiler { |
| |
| // Lowers JS-level operators to simplified operators based on types. |
| class JSTypedLowering : public LoweringBuilder { |
| public: |
| explicit JSTypedLowering(JSGraph* jsgraph, |
| SourcePositionTable* source_positions) |
| : LoweringBuilder(jsgraph->graph(), source_positions), |
| jsgraph_(jsgraph), |
| simplified_(jsgraph->zone()), |
| machine_(jsgraph->zone()) {} |
| virtual ~JSTypedLowering() {} |
| |
| Reduction Reduce(Node* node); |
| virtual void Lower(Node* node) { Reduce(node); } |
| |
| JSGraph* jsgraph() { return jsgraph_; } |
| Graph* graph() { return jsgraph_->graph(); } |
| |
| private: |
| friend class JSBinopReduction; |
| JSGraph* jsgraph_; |
| SimplifiedOperatorBuilder simplified_; |
| MachineOperatorBuilder machine_; |
| |
| Reduction ReplaceEagerly(Node* old, Node* node); |
| Reduction NoChange() { return Reducer::NoChange(); } |
| Reduction ReplaceWith(Node* node) { return Reducer::Replace(node); } |
| Reduction Changed(Node* node) { return Reducer::Changed(node); } |
| Reduction ReduceJSAdd(Node* node); |
| Reduction ReduceJSComparison(Node* node); |
| Reduction ReduceJSEqual(Node* node, bool invert); |
| Reduction ReduceJSStrictEqual(Node* node, bool invert); |
| Reduction ReduceJSToNumberInput(Node* input); |
| Reduction ReduceJSToStringInput(Node* input); |
| Reduction ReduceJSToBooleanInput(Node* input); |
| Reduction ReduceNumberBinop(Node* node, Operator* numberOp); |
| Reduction ReduceI32Binop(Node* node, bool left_signed, bool right_signed, |
| Operator* intOp); |
| Reduction ReduceI32Shift(Node* node, bool left_signed, Operator* shift_op); |
| |
| JSOperatorBuilder* javascript() { return jsgraph_->javascript(); } |
| CommonOperatorBuilder* common() { return jsgraph_->common(); } |
| SimplifiedOperatorBuilder* simplified() { return &simplified_; } |
| MachineOperatorBuilder* machine() { return &machine_; } |
| }; |
| } |
| } |
| } // namespace v8::internal::compiler |
| |
| #endif // V8_COMPILER_OPERATOR_REDUCERS_H_ |