[Interpreter] Collect type feedback for subtract operation and pass it to turbofan.

src/interpreter/interpreter.cc

 // Copyright 2015 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/interpreter/interpreter.h"
 
 #include <fstream>
 #include <memory>
 
 #include "src/ast/prettyprinter.h"
@@ skipping 732 matching lines @@
 // PopContext <context>
 //
 // Pops the current context and sets <context> as the new context.
 void Interpreter::DoPopContext(InterpreterAssembler* assembler) {
   Node* reg_index = __ BytecodeOperandReg(0);
   Node* context = __ LoadRegister(reg_index);
   __ SetContext(context);
   __ Dispatch();
 }
 
+// TODO(mythria): Remove this function once all BinaryOps record type feedback.
 template <class Generator>
 void Interpreter::DoBinaryOp(InterpreterAssembler* assembler) {
   Node* reg_index = __ BytecodeOperandReg(0);
   Node* lhs = __ LoadRegister(reg_index);
   Node* rhs = __ GetAccumulator();
   Node* context = __ GetContext();
   Node* result = Generator::Generate(assembler, lhs, rhs, context);
   __ SetAccumulator(result);
   __ Dispatch();
 }
 
+template <class Generator>
+void Interpreter::DoBinaryOpWithFeedback(InterpreterAssembler* assembler) {
+  Node* reg_index = __ BytecodeOperandReg(0);
+  Node* lhs = __ LoadRegister(reg_index);
+  Node* rhs = __ GetAccumulator();
+  Node* context = __ GetContext();
+  Node* slot_index = __ BytecodeOperandIdx(1);
+  Node* type_feedback_vector = __ LoadTypeFeedbackVector();
+  Node* result = Generator::Generate(assembler, lhs, rhs, context,
+                                     type_feedback_vector, slot_index);
+  __ SetAccumulator(result);
+  __ Dispatch();
+}
+
 // Add <src>
 //
 // Add register <src> to accumulator.
 void Interpreter::DoAdd(InterpreterAssembler* assembler) {
   DoBinaryOp<AddStub>(assembler);
 }
 
 // Sub <src>
 //
 // Subtract register <src> from accumulator.
 void Interpreter::DoSub(InterpreterAssembler* assembler) {
-  DoBinaryOp<SubtractStub>(assembler);
+  DoBinaryOpWithFeedback<SubtractWithFeedbackStub>(assembler);
 }
 
 // Mul <src>
 //
 // Multiply accumulator by register <src>.
 void Interpreter::DoMul(InterpreterAssembler* assembler) {
   DoBinaryOp<MultiplyStub>(assembler);
 }
 
 // Div <src>
@@ skipping 1365 matching lines @@
   __ StoreObjectField(generator, JSGeneratorObject::kContinuationOffset,
       __ SmiTag(new_state));
   __ SetAccumulator(old_state);
 
   __ Dispatch();
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8