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

src/compiler/bytecode-graph-builder.cc

Index: src/compiler/bytecode-graph-builder.cc
diff --git a/src/compiler/bytecode-graph-builder.cc b/src/compiler/bytecode-graph-builder.cc
index 621ca104d880ab2ecdb43bddb3f194e5815c2d5e..ea185637e8783db2df4698d93524bb4cfd815dd1 100644
--- a/src/compiler/bytecode-graph-builder.cc
+++ b/src/compiler/bytecode-graph-builder.cc
@@ -1141,7 +1141,16 @@ void BytecodeGraphBuilder::VisitAdd() {
 }
 
 void BytecodeGraphBuilder::VisitSub() {
-  BinaryOperationHints hints = BinaryOperationHints::Any();
+  // TODO(mythria): Move this to a helper function, once more binary operations
+  // record type feedback.
+  FeedbackVectorSlot slot =
+      feedback_vector()->ToSlot(bytecode_iterator().GetIndexOperand(1));
+  DCHECK_EQ(FeedbackVectorSlotKind::GENERAL, feedback_vector()->GetKind(slot));
+  Object* feedback = feedback_vector()->Get(slot);
+  DCHECK(feedback->IsSmi());
+  BinaryOperationHints::Hint hint =
+      BinaryOperationHintFromFeedback((Smi::cast(feedback))->value());
+  BinaryOperationHints hints(hint, hint, hint);
   BuildBinaryOp(javascript()->Subtract(hints));
 }