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

src/objects-printer.cc

 // Copyright 2012 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/objects.h"
 
 #include <iomanip>
 #include <memory>
 
 #include "src/disasm.h"
@@ skipping 732 matching lines @@
       case FeedbackVectorSlotKind::STORE_IC: {
         StoreICNexus nexus(this, slot);
         os << Code::ICState2String(nexus.StateFromFeedback());
         break;
       }
       case FeedbackVectorSlotKind::KEYED_STORE_IC: {
         KeyedStoreICNexus nexus(this, slot);
         os << Code::ICState2String(nexus.StateFromFeedback());
         break;
       }
+      case FeedbackVectorSlotKind::INTERPRETER_BINARYOP_IC:
+      case FeedbackVectorSlotKind::INTERPRETER_COMPARE_IC:

[mythria, 2016/09/20 12:35:16]

Would it be helpful to print the binary/compare operation hint here for
debugging or performance analysis?

[mvstanton, 2016/09/20 13:19:22]

Absolutely, will do!

       case FeedbackVectorSlotKind::GENERAL:
         break;
       case FeedbackVectorSlotKind::INVALID:
       case FeedbackVectorSlotKind::KINDS_NUMBER:
         UNREACHABLE();
         break;
     }
 
     int entry_size = iter.entry_size();
     for (int i = 0; i < entry_size; i++) {
@@ skipping 760 matching lines @@
     printf("Not a transition array\n");
   } else {
     reinterpret_cast<i::TransitionArray*>(object)->Print();
   }
 }
 
 extern void _v8_internal_Print_StackTrace() {
   i::Isolate* isolate = i::Isolate::Current();
   isolate->PrintStack(stdout);
 }