Revision: 17949
Author: [email protected]
Date: Thu Nov 21 09:16:34 2013 UTC
Log: Do deferred migration of maps after deoptimizing once.
BUG=
[email protected]
Review URL: https://codereview.chromium.org/50213003
http://code.google.com/p/v8/source/detail?r=17949
Modified:
/branches/bleeding_edge/src/objects.cc
=======================================
--- /branches/bleeding_edge/src/objects.cc Tue Nov 19 13:38:15 2013 UTC
+++ /branches/bleeding_edge/src/objects.cc Thu Nov 21 09:16:34 2013 UTC
@@ -2784,7 +2784,6 @@
Handle<Map> new_map = split_map;
for (; descriptor < descriptors; descriptor++) {
new_map = Map::CopyInstallDescriptors(new_map, descriptor,
new_descriptors);
- new_map->set_migration_target(true);
}
new_map->set_owns_descriptors(true);
@@ -3875,6 +3874,7 @@
Handle<Map> original_map(object->map());
GeneralizeFieldRepresentation(
object, 0, Representation::None(), ALLOW_AS_CONSTANT);
+ object->map()->set_migration_target(true);
if (FLAG_trace_migration) {
object->PrintInstanceMigration(stdout, *original_map, object->map());
}
--
--
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