[TypeFeedbackVector] special ic slots for interpreter compare/binary ops.

src/compiler/bytecode-graph-builder.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/compiler/bytecode-graph-builder.h"
 
 #include "src/ast/ast.h"
 #include "src/ast/scopes.h"
 #include "src/compilation-info.h"
 #include "src/compiler/bytecode-branch-analysis.h"
@@ skipping 1362 matching lines @@
   Node* node = NewNode(js_op, left, right);
   environment()->BindAccumulator(node, &states);
 }
 
 // Helper function to create binary operation hint from the recorded type
 // feedback.
 BinaryOperationHint BytecodeGraphBuilder::GetBinaryOperationHint(
     int operand_index) {
   FeedbackVectorSlot slot = feedback_vector()->ToSlot(
       bytecode_iterator().GetIndexOperand(operand_index));
-  DCHECK_EQ(FeedbackVectorSlotKind::GENERAL, feedback_vector()->GetKind(slot));
-  Object* feedback = feedback_vector()->Get(slot);
-  BinaryOperationHint hint = BinaryOperationHint::kAny;
-  if (feedback->IsSmi()) {
-    hint = BinaryOperationHintFromFeedback((Smi::cast(feedback))->value());
-  }
-  return hint;
+  DCHECK_EQ(FeedbackVectorSlotKind::INTERPRETER_BINARYOP_IC,
+            feedback_vector()->GetKind(slot));
+  BinaryOpICNexus nexus(feedback_vector(), slot);
+  return nexus.GetBinaryOperationFeedback();
 }
 
 // Helper function to create compare operation hint from the recorded type
 // feedback.
 CompareOperationHint BytecodeGraphBuilder::GetCompareOperationHint() {
   int slot_index = bytecode_iterator().GetIndexOperand(1);
   if (slot_index == 0) {
     return CompareOperationHint::kAny;
   }
   FeedbackVectorSlot slot =
       feedback_vector()->ToSlot(bytecode_iterator().GetIndexOperand(1));
-  DCHECK_EQ(FeedbackVectorSlotKind::GENERAL, feedback_vector()->GetKind(slot));
-  Object* feedback = feedback_vector()->Get(slot);
-  CompareOperationHint hint = CompareOperationHint::kAny;
-  if (feedback->IsSmi()) {
-    hint = CompareOperationHintFromFeedback((Smi::cast(feedback))->value());
-  }
-  return hint;
+  DCHECK_EQ(FeedbackVectorSlotKind::INTERPRETER_COMPARE_IC,
+            feedback_vector()->GetKind(slot));
+  CompareICNexus nexus(feedback_vector(), slot);
+  return nexus.GetCompareOperationFeedback();
 }
 
 float BytecodeGraphBuilder::ComputeCallFrequency(int slot_id) const {
   if (slot_id >= TypeFeedbackVector::kReservedIndexCount) {
     CallICNexus nexus(feedback_vector(), feedback_vector()->ToSlot(slot_id));
     return nexus.ComputeCallFrequency() * invocation_frequency_;
   }
   return 0.0f;
 }
 
@@ skipping 726 matching lines @@
     // Phi does not exist yet, introduce one.
     value = NewPhi(inputs, value, control);
     value->ReplaceInput(inputs - 1, other);
   }
   return value;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8