127253 2014-01-19 10:59:10 -0800 JSC Parser: Shrink BindingNode. 2014-01-20 17:06:07 -0800 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED P2 Normal --- 1 kling kling ggaren kling oliver oldest_to_newest 969609 0 kling 2014-01-19 10:59:10 -0800 JSC Parser: Shrink BindingNode. 969610 1 221590 kling 2014-01-19 10:59:44 -0800 Created attachment 221590 Patch 969616 2 221590 ggaren 2014-01-19 11:29:03 -0800 Comment on attachment 221590 Patch r=me 969617 3 ggaren 2014-01-19 11:29:24 -0800 I'm surprised that this matters, since the parse tree is a temporary data structure. 969618 4 kling 2014-01-19 11:30:37 -0800 (In reply to comment #3) > I'm surprised that this matters, since the parse tree is a temporary data structure. These hang off of the VM's CodeCache. 969620 5 ggaren 2014-01-19 11:31:51 -0800 Are you sure? The code cache stores an UnlinkedCodeBlock, which contains bytecode, not AST. 969622 6 kling 2014-01-19 11:39:03 -0800 Hurgh, right you are! Something is keeping these objects alive though. Maybe we have a bug. :O 969624 7 ggaren 2014-01-19 11:44:59 -0800 Maybe a leak? 969630 8 kling 2014-01-19 12:05:05 -0800 Looks like these hang off of UnlinkedCodeBlock. UnlinkedFunctionExecutable has a FunctionParameters which contains a bunch of DeconstructionPatternNodes originating in the parser. 969638 9 ggaren 2014-01-19 13:17:59 -0800 I see. We should be able to refactor and remove those. Can you send a bug to Oliver? 969687 10 oliver 2014-01-19 21:09:02 -0800 (In reply to comment #9) > I see. We should be able to refactor and remove those. Can you send a bug to Oliver? Hurk - yeah that's not ideal currently, it's deliberately held but i think reparsing of the arg list is probably the best approach. 970086 11 kling 2014-01-20 17:06:07 -0800 Committed r162393: <http://trac.webkit.org/changeset/162393> 221590 2014-01-19 10:59:44 -0800 2014-01-19 11:29:03 -0800 Patch bug-127253.diff text/plain 7587 kling ZGlmZiAtLWdpdCBhL1NvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cgYi9Tb3VyY2UvSmF2 YVNjcmlwdENvcmUvQ2hhbmdlTG9nCmluZGV4IGNhNDg0ZmUuLjAxNjk3OWUgMTAwNjQ0Ci0tLSBh L1NvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cKKysrIGIvU291cmNlL0phdmFTY3JpcHRD b3JlL0NoYW5nZUxvZwpAQCAtMSwzICsxLDMwIEBACisyMDE0LTAxLTE5ICBBbmRyZWFzIEtsaW5n ICA8YWtsaW5nQGFwcGxlLmNvbT4KKworICAgICAgICBKU0MgUGFyc2VyOiBTaHJpbmsgQmluZGlu Z05vZGUuCisgICAgICAgIDxodHRwczovL3dlYmtpdC5vcmcvYi8xMjcyNTM+CisKKyAgICAgICAg VGhlICJkaXZvdCIgYW5kICJlbmQiIHNvdXJjZSBsb2NhdGlvbnMgYXJlIGFsd2F5cyBpZGVudGlj YWwgZm9yCisgICAgICAgIEJpbmRpbmdOb2Rlcywgc28gc3RvcmUgb25seSAic3RhcnQiIGFuZCAi 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