| // 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_JS_GENERIC_LOWERING_H_ |
| #define V8_COMPILER_JS_GENERIC_LOWERING_H_ |
| |
| #include "src/codegen/code-factory.h" |
| #include "src/compiler/graph-reducer.h" |
| #include "src/compiler/linkage.h" |
| #include "src/compiler/opcodes.h" |
| |
| namespace v8 { |
| namespace internal { |
| namespace compiler { |
| |
| // Forward declarations. |
| class CommonOperatorBuilder; |
| class JSGraph; |
| class MachineOperatorBuilder; |
| class Linkage; |
| |
| |
| // Lowers JS-level operators to runtime and IC calls in the "generic" case. |
| class JSGenericLowering final : public AdvancedReducer { |
| public: |
| JSGenericLowering(JSGraph* jsgraph, Editor* editor, JSHeapBroker* broker); |
| ~JSGenericLowering() final; |
| |
| const char* reducer_name() const override { return "JSGenericLowering"; } |
| |
| Reduction Reduce(Node* node) final; |
| |
| protected: |
| #define DECLARE_LOWER(x, ...) void Lower##x(Node* node); |
| // Dispatched depending on opcode. |
| JS_OP_LIST(DECLARE_LOWER) |
| #undef DECLARE_LOWER |
| |
| // Helpers to replace existing nodes with a generic call. |
| void ReplaceWithBuiltinCall(Node* node, Builtins::Name builtin); |
| void ReplaceWithBuiltinCall(Node* node, Callable c, |
| CallDescriptor::Flags flags); |
| void ReplaceWithBuiltinCall(Node* node, Callable c, |
| CallDescriptor::Flags flags, |
| Operator::Properties properties); |
| void ReplaceWithRuntimeCall(Node* node, Runtime::FunctionId f, int args = -1); |
| |
| void ReplaceUnaryOpWithBuiltinCall(Node* node, |
| Builtins::Name builtin_without_feedback, |
| Builtins::Name builtin_with_feedback); |
| void ReplaceBinaryOpWithBuiltinCall(Node* node, |
| Builtins::Name builtin_without_feedback, |
| Builtins::Name builtin_with_feedback); |
| |
| Zone* zone() const; |
| Isolate* isolate() const; |
| JSGraph* jsgraph() const { return jsgraph_; } |
| Graph* graph() const; |
| CommonOperatorBuilder* common() const; |
| MachineOperatorBuilder* machine() const; |
| JSHeapBroker* broker() const { return broker_; } |
| |
| private: |
| JSGraph* const jsgraph_; |
| JSHeapBroker* const broker_; |
| }; |
| |
| } // namespace compiler |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_COMPILER_JS_GENERIC_LOWERING_H_ |