Revision: 10444
Author: [email protected]
Date: Thu Jan 19 06:58:54 2012
Log: Revert "Immediately use the generic stub when storing into COW
arrays"
Due to unexpected performance implications.
This reverts r10429.
Review URL: https://chromiumcodereview.appspot.com/9150032
http://code.google.com/p/v8/source/detail?r=10444
Modified:
/branches/bleeding_edge/src/ic.cc
=======================================
--- /branches/bleeding_edge/src/ic.cc Wed Jan 18 05:15:22 2012
+++ /branches/bleeding_edge/src/ic.cc Thu Jan 19 06:58:54 2012
@@ -1677,9 +1677,6 @@
if (receiver->elements()->map() ==
isolate()->heap()->non_strict_arguments_elements_map()) {
stub = non_strict_arguments_stub();
- } else if (receiver->elements()->map() ==
- isolate()->heap()->fixed_cow_array_map()) {
- // Do nothing, just keep the generic stub.
} else if (!force_generic) {
if (key->IsSmi() && (target() != *non_strict_arguments_stub())) {
StubKind stub_kind = STORE_NO_TRANSITION;
--
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