commit ee7102da6de80e2800b9fd151ee89a23dfa7a5ca
author abarth@webkit.org <abarth@webkit.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc> Mon Oct 22 18:50:11 2012 +0000
committer abarth@webkit.org <abarth@webkit.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc> Mon Oct 22 18:50:11 2012 +0000
tree 19b6aaed98a412d0c04cd10bf74b997fdb0b4f96
parent 3588c160b16b8ad9813be46ff9281e250e2e69db

[V8] Vastly simplify V8GCController's NodeVisitor
https://bugs.webkit.org/show_bug.cgi?id=99884

Reviewed by Kentaro Hara.

PerformanceTests:

Adds some performance tests for the garbage collector.

* Bindings/gc-forest.html: Added.
* Bindings/gc-mini-tree.html: Added.
* Bindings/gc-tree.html: Added.

Source/WebCore:

NodeVisitor was vastly more complicated than necessary.

This patch improve performance on these new gc benchmarks:

gc-forest: 1.14% better
gc-mini-tree: 5.09% better
gc-tree: 4.60% better

* bindings/v8/V8GCController.cpp:
(WebCore::ObjectVisitor::visitDOMWrapper):
(WebCore::addImplicitReferencesForNodeWithEventListeners):
(WebCore::rootForGC):
(WebCore::NodeVisitor::visitDOMWrapper):
(WebCore::NodeVisitor::applyGrouping):
(NodeVisitor):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@132114 268f45cc-cd09-0410-ab3c-d52691b4dbfc