Record code slots that may point to evacuation candidate objects after deoptimizing them.

src/deoptimizer.cc

Index: src/deoptimizer.cc
diff --git a/src/deoptimizer.cc b/src/deoptimizer.cc
index 3ab10fcac905871da62fafd9cf9f658e1e7e7d48..080ac2ef30cb2472ff7ef7721b17c554571271bf 100644
--- a/src/deoptimizer.cc
+++ b/src/deoptimizer.cc
@@ -417,6 +417,11 @@ void Deoptimizer::DeoptimizeMarkedCodeForContext(Context* context) {
     // Ignore all slots that might have been recorded on the deoptimized code
     // object.
     isolate->heap()->mark_compact_collector()->RemoveObjectSlots(codes[i]);
+
+    // After removing all recorded slots of the code object, we add the slots
+    // again that point to objects on evacuation candidates.

[Michael Starzinger, 2015/07/03 10:46:09]

nit: Let's add to the comment that this is only about slots in the header of the
code object, not the instruction stream.

[Hannes Payer (out of office), 2015/07/03 10:55:53]

Done.

+    isolate->heap()->mark_compact_collector()->RecordDeoptimizedCodeSlots(
+        codes[i]);
   }
 }