[Tracing] Implement IC statistics in tracing.

src/ic/ic-state.cc

 // 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.
 
 #include "src/ic/ic-state.h"
 
 #include "src/ic/ic.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 43 matching lines @@
       HasFixedRightArgField::encode(fixed_right_arg_.IsJust());
   if (fixed_right_arg_.IsJust()) {
     extra_ic_state = FixedRightArgValueField::update(
         extra_ic_state, WhichPowerOf2(fixed_right_arg_.FromJust()));
   } else {
     extra_ic_state = RightKindField::update(extra_ic_state, right_kind_);
   }
   return extra_ic_state;
 }
 
+std::string BinaryOpICState::ToString() const {
+  std::string ret = "(";
+  ret += Token::Name(op_);
+  if (CouldCreateAllocationMementos()) ret += "_CreateAllocationMementos";
+  ret += ":";
+  ret += BinaryOpICState::KindToString(left_kind_);
+  ret += "*";
+  if (fixed_right_arg_.IsJust()) {
+    ret += fixed_right_arg_.FromJust();
+  } else {
+    ret += BinaryOpICState::KindToString(right_kind_);
+  }
+  ret += "->";
+  ret += BinaryOpICState::KindToString(result_kind_);
+  ret += ")";
+  return ret;
+}
 
 // static
 void BinaryOpICState::GenerateAheadOfTime(
     Isolate* isolate, void (*Generate)(Isolate*, const BinaryOpICState&)) {
 // TODO(olivf) We should investigate why adding stubs to the snapshot is so
 // expensive at runtime. When solved we should be able to add most binops to
 // the snapshot instead of hand-picking them.
 // Generated list of commonly used stubs
 #define GENERATE(op, left_kind, right_kind, result_kind) \
   do {                                                   \
@@ skipping 431 matching lines @@
     case RECEIVER:
     case GENERIC:
       return GENERIC;
   }
   UNREACHABLE();
   return GENERIC;  // Make the compiler happy.
 }
 
 }  // namespace internal
 }  // namespace v8