170940 2017-04-18 04:02:45 -0700 [DFG] Drop unknown use of CheckCell's child2 to work ObjectAllocationSinking for Array iterator object 2017-04-18 08:39:55 -0700 1 1 1 Unclassified WebKit JavaScriptCore WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED P2 Normal --- 1 ysuzuki ysuzuki buildbot fpizlo keith_miller mark.lam msaboff saam oldest_to_newest 1298243 0 ysuzuki 2017-04-18 04:02:45 -0700 ... 1298244 1 ysuzuki 2017-04-18 04:06:13 -0700 I'm not sure why not using Phantom. 1298269 2 307375 ysuzuki 2017-04-18 05:09:14 -0700 Created attachment 307375 Patch 1298271 3 307376 ysuzuki 2017-04-18 05:32:39 -0700 Created attachment 307376 Patch 1298286 4 ysuzuki 2017-04-18 08:05:02 -0700 Committed r215459: <http://trac.webkit.org/changeset/215459> 1298288 5 307376 ysuzuki 2017-04-18 08:28:04 -0700 Comment on attachment 307376 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=307376&action=review > Source/JavaScriptCore/dfg/DFGByteCodeParser.cpp:3618 > + addToGraph(CheckCell, OpInfo(m_graph.freeze(variant.intrinsicFunction())), getter); Oops, CheckCell can OSRExit, so we need to insert Phantom after CheckCell. I'll land the follow up patch that just replaces the positions between CheckCell and Phantom. 1298289 6 ysuzuki 2017-04-18 08:39:55 -0700 Committed r215460: <http://trac.webkit.org/changeset/215460> 307375 2017-04-18 05:09:14 -0700 2017-04-18 05:32:37 -0700 Patch bug-170940-20170418210913.patch text/plain 4285 ysuzuki U3VidmVyc2lvbiBSZXZpc2lvbjogMjE1NDU3CmRpZmYgLS1naXQgYS9Tb3VyY2UvSmF2YVNjcmlw dENvcmUvQ2hhbmdlTG9nIGIvU291cmNlL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwppbmRleCAx MGU2YjYxNjBkMjc5ZTQ4YzkxZGE3Y2I5Mzg0NWU1NWRmOGY4MGEyLi42NDE5ZDQ3NDA4NTk3MDZi MTVkMzVhNTZhNWZiMTNiZjEyODVhOTM2IDEwMDY0NAotLS0gYS9Tb3VyY2UvSmF2YVNjcmlwdENv cmUvQ2hhbmdlTG9nCisrKyBiL1NvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cKQEAgLTEs NSArMSwyOCBAQAogMjAxNy0wNC0xOCAgWXVzdWtlIFN1enVraSAgPHV0YXRhbmUudGVhQGdtYWls LmNvbT4KIAorICAgICAgICBbREZHXSBEcm9wIHVua25vd24gdXNlIG9mIENoZWNrQ2VsbCdzIGNo aWxkMiB0byB3b3JrIE9iamVjdEFsbG9jYXRpb25TaW5raW5nIGZvciBBcnJheSBpdGVyYXRvciBv 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