Revision: 17468
Author: [email protected]
Date: Tue Nov 5 09:32:39 2013 UTC
Log: Fix double-boxing issue when materializing captured objects.
[email protected]
TEST=mjsunit/compiler/escape-analysis-representation
Review URL: https://codereview.chromium.org/57783003
http://code.google.com/p/v8/source/detail?r=17468
Modified:
/branches/bleeding_edge/src/deoptimizer.cc
=======================================
--- /branches/bleeding_edge/src/deoptimizer.cc Tue Oct 22 13:48:54 2013 UTC
+++ /branches/bleeding_edge/src/deoptimizer.cc Tue Nov 5 09:32:39 2013 UTC
@@ -1620,10 +1620,10 @@
Handle<Map>::cast(MaterializeNextValue()),
Representation::Tagged());
switch (map->instance_type()) {
case HEAP_NUMBER_TYPE: {
- Handle<HeapNumber> object =
isolate_->factory()->NewHeapNumber(0.0);
+ // Reuse the HeapNumber value directly as it is already properly
+ // tagged and skip materializing the HeapNumber explicitly.
+ Handle<Object> object = MaterializeNextValue();
materialized_objects_->Add(object);
- Handle<Object> number = MaterializeNextValue();
- object->set_value(number->Number());
materialization_value_index_ += kDoubleSize / kPointerSize - 1;
break;
}
--
--
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