Collect type profile for DevTools.

src/feedback-vector-inl.h

 // 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.
 
 #ifndef V8_FEEDBACK_VECTOR_INL_H_
 #define V8_FEEDBACK_VECTOR_INL_H_
 
 #include "src/factory.h"
 #include "src/feedback-vector.h"
 #include "src/globals.h"
@@ skipping 49 matching lines @@
     case FeedbackSlotKind::kLoadProperty:
     case FeedbackSlotKind::kLoadGlobalInsideTypeof:
     case FeedbackSlotKind::kLoadGlobalNotInsideTypeof:
     case FeedbackSlotKind::kLoadKeyed:
     case FeedbackSlotKind::kStoreNamedSloppy:
     case FeedbackSlotKind::kStoreNamedStrict:
     case FeedbackSlotKind::kStoreOwnNamed:
     case FeedbackSlotKind::kStoreKeyedSloppy:
     case FeedbackSlotKind::kStoreKeyedStrict:
     case FeedbackSlotKind::kStoreDataPropertyInLiteral:
+    case FeedbackSlotKind::kTypeProfile:
       return 2;

[Yang, 2017/02/22 10:39:28]

Why do we need two slots for this?

[Franzi, 2017/02/27 11:38:01]

Changed it to 1.

 
     case FeedbackSlotKind::kInvalid:
     case FeedbackSlotKind::kKindsNumber:
       UNREACHABLE();
       break;
   }
   return 1;
 }
 
 bool FeedbackVector::is_empty() const {
@@ skipping 98 matching lines @@
       case FeedbackSlotKind::kCall:
       case FeedbackSlotKind::kLoadProperty:
       case FeedbackSlotKind::kLoadGlobalInsideTypeof:
       case FeedbackSlotKind::kLoadGlobalNotInsideTypeof:
       case FeedbackSlotKind::kLoadKeyed:
       case FeedbackSlotKind::kStoreNamedSloppy:
       case FeedbackSlotKind::kStoreNamedStrict:
       case FeedbackSlotKind::kStoreOwnNamed:
       case FeedbackSlotKind::kStoreKeyedSloppy:
       case FeedbackSlotKind::kStoreKeyedStrict:
-      case FeedbackSlotKind::kStoreDataPropertyInLiteral: {
+      case FeedbackSlotKind::kStoreDataPropertyInLiteral:
+      case FeedbackSlotKind::kTypeProfile: {
         if (obj->IsWeakCell() || obj->IsFixedArray() || obj->IsString()) {
           with++;
         } else if (obj == megamorphic_sentinel) {
           gen++;
           if (code_is_interpreted) with++;
         }
         total++;
         break;
       }
       case FeedbackSlotKind::kBinaryOp:
@@ skipping 104 matching lines @@
 #endif
   int index = vector()->GetIndex(slot()) + 1;
   vector()->set(index, feedback_extra, mode);
 }
 
 Isolate* FeedbackNexus::GetIsolate() const { return vector()->GetIsolate(); }
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_FEEDBACK_VECTOR_INL_H_