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_COMPILER_JS_TYPED_LOWERING_H_
       6             : #define V8_COMPILER_JS_TYPED_LOWERING_H_
       7             : 
       8             : #include "src/base/compiler-specific.h"
       9             : #include "src/compiler/graph-reducer.h"
      10             : #include "src/compiler/opcodes.h"
      11             : #include "src/globals.h"
      12             : 
      13             : namespace v8 {
      14             : namespace internal {
      15             : 
      16             : // Forward declarations.
      17             : class Factory;
      18             : 
      19             : namespace compiler {
      20             : 
      21             : // Forward declarations.
      22             : class CommonOperatorBuilder;
      23             : class JSGraph;
      24             : class JSOperatorBuilder;
      25             : class SimplifiedOperatorBuilder;
      26             : class TypeCache;
      27             : 
      28             : enum Signedness { kSigned, kUnsigned };
      29             : 
      30             : // Lowers JS-level operators to simplified operators based on types.
      31             : class V8_EXPORT_PRIVATE JSTypedLowering final
      32             :     : public NON_EXPORTED_BASE(AdvancedReducer) {
      33             :  public:
      34             :   JSTypedLowering(Editor* editor, JSGraph* jsgraph, JSHeapBroker* broker,
      35             :                   Zone* zone);
      36      961292 :   ~JSTypedLowering() final = default;
      37             : 
      38          18 :   const char* reducer_name() const override { return "JSTypedLowering"; }
      39             : 
      40             :   Reduction Reduce(Node* node) final;
      41             : 
      42             :  private:
      43             :   friend class JSBinopReduction;
      44             : 
      45             :   Reduction ReduceJSAdd(Node* node);
      46             :   Reduction ReduceJSBitwiseNot(Node* node);
      47             :   Reduction ReduceJSDecrement(Node* node);
      48             :   Reduction ReduceJSIncrement(Node* node);
      49             :   Reduction ReduceJSNegate(Node* node);
      50             :   Reduction ReduceJSComparison(Node* node);
      51             :   Reduction ReduceJSLoadNamed(Node* node);
      52             :   Reduction ReduceJSHasInPrototypeChain(Node* node);
      53             :   Reduction ReduceJSOrdinaryHasInstance(Node* node);
      54             :   Reduction ReduceJSLoadContext(Node* node);
      55             :   Reduction ReduceJSStoreContext(Node* node);
      56             :   Reduction ReduceJSLoadModule(Node* node);
      57             :   Reduction ReduceJSStoreModule(Node* node);
      58             :   Reduction ReduceJSEqual(Node* node);
      59             :   Reduction ReduceJSStrictEqual(Node* node);
      60             :   Reduction ReduceJSToLength(Node* node);
      61             :   Reduction ReduceJSToName(Node* node);
      62             :   Reduction ReduceJSToNumberInput(Node* input);
      63             :   Reduction ReduceJSToNumber(Node* node);
      64             :   Reduction ReduceJSToNumeric(Node* node);
      65             :   Reduction ReduceJSToStringInput(Node* input);
      66             :   Reduction ReduceJSToString(Node* node);
      67             :   Reduction ReduceJSToObject(Node* node);
      68             :   Reduction ReduceJSConstructForwardVarargs(Node* node);
      69             :   Reduction ReduceJSConstruct(Node* node);
      70             :   Reduction ReduceJSCallForwardVarargs(Node* node);
      71             :   Reduction ReduceJSCall(Node* node);
      72             :   Reduction ReduceJSForInNext(Node* node);
      73             :   Reduction ReduceJSForInPrepare(Node* node);
      74             :   Reduction ReduceJSLoadMessage(Node* node);
      75             :   Reduction ReduceJSStoreMessage(Node* node);
      76             :   Reduction ReduceJSGeneratorStore(Node* node);
      77             :   Reduction ReduceJSGeneratorRestoreContinuation(Node* node);
      78             :   Reduction ReduceJSGeneratorRestoreContext(Node* node);
      79             :   Reduction ReduceJSGeneratorRestoreRegister(Node* node);
      80             :   Reduction ReduceJSGeneratorRestoreInputOrDebugPos(Node* node);
      81             :   Reduction ReduceNumberBinop(Node* node);
      82             :   Reduction ReduceInt32Binop(Node* node);
      83             :   Reduction ReduceUI32Shift(Node* node, Signedness signedness);
      84             :   Reduction ReduceObjectIsArray(Node* node);
      85             :   Reduction ReduceJSParseInt(Node* node);
      86             :   Reduction ReduceJSResolvePromise(Node* node);
      87             : 
      88             :   // Helper for ReduceJSLoadModule and ReduceJSStoreModule.
      89             :   Node* BuildGetModuleCell(Node* node);
      90             : 
      91             :   Factory* factory() const;
      92             :   Graph* graph() const;
      93             :   JSGraph* jsgraph() const { return jsgraph_; }
      94             :   JSHeapBroker* broker() const { return broker_; }
      95             :   Isolate* isolate() const;
      96             :   JSOperatorBuilder* javascript() const;
      97             :   CommonOperatorBuilder* common() const;
      98             :   SimplifiedOperatorBuilder* simplified() const;
      99             : 
     100             :   JSGraph* jsgraph_;
     101             :   JSHeapBroker* broker_;
     102             :   Type empty_string_type_;
     103             :   Type pointer_comparable_type_;
     104             :   TypeCache const* type_cache_;
     105             : };
     106             : 
     107             : }  // namespace compiler
     108             : }  // namespace internal
     109             : }  // namespace v8
     110             : 
     111             : #endif  // V8_COMPILER_JS_TYPED_LOWERING_H_