From b8a784591fa2e01192ce2cd3fae810c44a5b198f Mon Sep 17 00:00:00 2001
From: "cshapiro@google.com" <cshapiro@google.com>
Date: Mon, 7 Jan 2013 23:16:44 +0000
Subject: [PATCH] Restore the bytes promoted counter.

Review URL: https://codereview.chromium.org//11783015

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@16764 260f80e4-7a28-3924-810f-c04153c831b5
---
 runtime/vm/scavenger.cc | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/runtime/vm/scavenger.cc b/runtime/vm/scavenger.cc
index f6273457278..0cc302c5859 100644
--- a/runtime/vm/scavenger.cc
+++ b/runtime/vm/scavenger.cc
@@ -74,6 +74,7 @@ class ScavengerVisitor : public ObjectPointerVisitor {
         vm_heap_(Dart::vm_isolate()->heap()),
         delayed_weak_stack_(),
         growth_policy_(PageSpace::kControlGrowth),
+        bytes_promoted_(0),
         visiting_old_pointers_(false),
         in_scavenge_pointer_(false) {}
 
@@ -108,6 +109,8 @@ class ScavengerVisitor : public ObjectPointerVisitor {
     }
   }
 
+  intptr_t bytes_promoted() const { return bytes_promoted_; }
+
  private:
   void UpdateStoreBuffer(RawObject** p, RawObject* obj) {
     uword ptr = reinterpret_cast<uword>(p);
@@ -184,6 +187,7 @@ class ScavengerVisitor : public ObjectPointerVisitor {
           // If promotion succeeded then we need to remember it so that it can
           // be traversed later.
           scavenger_->PushToPromotedStack(new_addr);
+          bytes_promoted_ += size;
           if (HeapTrace::is_enabled()) {
             heap_->trace()->TracePromotion(raw_addr, new_addr);
           }
@@ -196,6 +200,7 @@ class ScavengerVisitor : public ObjectPointerVisitor {
           new_addr = heap_->TryAllocate(size, Heap::kOld, growth_policy_);
           if (new_addr != 0) {
             scavenger_->PushToPromotedStack(new_addr);
+            bytes_promoted_ += size;
             if (HeapTrace::is_enabled()) {
               heap_->trace()->TracePromotion(raw_addr, new_addr);
             }
@@ -242,6 +247,9 @@ class ScavengerVisitor : public ObjectPointerVisitor {
   DelaySet delay_set_;
   GrowableArray<RawObject*> delayed_weak_stack_;
   PageSpace::GrowthPolicy growth_policy_;
+  // TODO(cshapiro): use this value to compute survival statistics for
+  // new space growth policy.
+  intptr_t bytes_promoted_;
 
   bool visiting_old_pointers_;
   bool in_scavenge_pointer_;